ESP32

ESP32-C3-DevKitM-1 is an entry-level development board based on ESP32-C3-MINI-1, a module named for its small size. This board integrates complete Wi-Fi and Bluetooth LE functions. Most of the I/O pins on the ESP32-C3-MINI-1 module are broken out to the pin headers on both sides of this board for easy interfacing. Developers can either connect peripherals with jumper wires or mount ESP32-C3-DevKitM-1 on a breadboard. Specifications ESP32-C3-MINI-1 ESP32-C3-MINI-1 is a general-purpose Wi-Fi and Bluetooth LE combo module that comes with a PCB antenna. At the core of this module is ESP32-C3FN4, a chip that has an embedded flash of 4 MB. Since flash is packaged in the ESP32-C3FN4 chip, rather than integrated into the module, ESP32-C3-MINI-1 has a smaller package size. 5 V to 3.3 V LDO Power regulator that converts a 5 V supply into a 3.3 V output. 5 V Power On LED Turns on when the USB power is connected to the board. Pin Headers All available GPIO pins (except for the SPI bus for flash) are broken out to the pin headers on the board. For details, please see Header Block. Boot Button Download button. Holding down Boot and then pressing Reset initiates Firmware Download mode for downloading firmware through the serial port. Micro-USB Port USB interface. Power supply for the board as well as the communication interface between a computer and the ESP32-C3FN4 chip. Reset Button Press this button to restart the system. USB-to-UART Bridge Single USB-UART bridge chip provides transfer rates up to 3 Mbps. RGB LED Addressable RGB LED, driven by GPIO 8. Downloads ESP32-C3 Datasheet ESP32-C3-MINI-1 Datasheet ESP32-C3-DevKitM-1 Schematic ESP32-C3-DevKitM-1 PCB Layout ESP32-C3-DevKitM-1 Dimensions

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The ESP32-PICO-KIT fits into a mini breadboard. It is fully functional with the minimum number of discrete components, while it has all the ESP32 pins exposed. Features Complete up-to-date documentation is available. All instructions and commands presented work as described. Plentiful additional information and hardware documentation are available too. Applications for the ESP32-PICO-KIT can be developed on Windows, Linux or Mac. Two cores and a radio Like the ESP8266 the ESP32 has Wi-Fi but adds Bluetooth. It also has two 32-bit cores inside, making it extremely powerful, and providing all the ports and interfaces that the ESP8266 is lacking.Oversimplifying things, one might say that the ESP8266 is a Wi-Fi controller that provides some I/O, whereas the ESP32 is a full-fledged controller that also has Wi-Fi. ESP32 peripherals The ESP32 exposes an ADC & DAC, touch sensor circuitry, an SD/SDIO/MMC host controller, an SDIO/SPI slave controller, an EMAC, PWM to control LEDs and motors, UART, SPI, I²C, I²S, infrared remote controller, and, of course, GPIO. ESP32-PICO-KIT Development board V4 The ESP32-PICO-D4 is a System-on-Chip (SoC) integrating an ESP32 chip together with a 4 MB SPI flash memory in a tiny 7 x 7 mm package. The ESP32-PICO-KIT is a breakout board for this SoC with an onboard USB-to-serial converter for easy programming and debugging. Besides the board, you'll need a programming toolchain. Complete, up-to-date documentation from Espressif is available on the Read the Docs website. All instructions and commands presented work as described.Plentiful additional information and hardware documentation are available too. Applications for the ESP32-PICO-KIT can be developed on Windows, Linux or Mac.

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Features Product model: HW-818 Working voltage: DC 5V Product size: 27mm x 48.5 mm x 4.5 mm / 1.06” x 1.9” x 0.17” SPI Flash: Default 32Mbit RAM: Internal 520KB + External 4MPSRAM Bluetooth: Bluetooth 4.2 BR/EDR and BLE standards Wi-Fi: 802 II b/g/n/e/i Support interfaces: UART, SPI, I2C, PWM Supporting TF Card: Maximum Supporting 4G IO port: 9 Serial port rate: default 115200 BPS Image output format: JPEG (OV2640 only), BMP, GRAYSCALE Spectrum range: 2412-2484 MHz Antenna form: board PCB antenna, gain 2dBi Transmitting power: 802.l1b: 17 + 2dBm (1lMbps) 802.l1g:14+2dBm (54Mbps) 802.l1n:13+2dBm (MCS7)

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With the NodeMCU-ESP32, comfortable prototyping is possible with simple programming via Luascript or the Arduino IDE and the breadboard-compatible design. This board has 2.4 GHz dual-mode Wifi and a BT wireless connection. In addition, a 512 KB SRAM and a 4 MB memory are integrated on the microcontroller development board. The board has 21 pins for interface connection, including I²C, SPI, UART, DAC and ADC. Specifications Type ESP32 Processor Tensilica LX6 Dual-Core Clock Frequency 240 MHz SRAM 512 kB Memory 4 MB Wireless Lan 802.11 b/g/n Frequency 2.4 GHz Bluetooth Classic / LE Data Interfaces UART / I²C / SPI / DAC / ADC Operating Voltage 3.3 V (operable via 5 V microUSB) Operating Temperature –40°C – 125°C Dimensions 48 x 26 x 11.5 mm Weight 10 g Downloads Manual

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The ESP32-C3 chip has industry-leading low-power performance and radio frequency performance, and supports Wi-Fi IEEE802.11b/g/n protocol and BLE 5.0. The chip is equipped with a RISC-V 32-bit single-core processor with an operating frequency of up to 160 MHz. Support secondary development without using other microcontrollers or processors. The chip has built-in 400 KB SRAM, 384 KB ROM, 8 KB RTC SRAM, built-in 4 MB Flash also supports external Flash. The chip supports a variety of low power consumption working states, which can meet the power consumption requirements of various application scenarios. The chip's unique features such as fine clock gating function, dynamic voltage clock frequency adjustment function, and RF output power adjustable function can achieve the best balance between communication distance, communication rate and power consumption. The ESP-C3-12F module provides a wealth of peripheral interfaces, including UART, PWM, SPI, I²S, I²C, ADC, temperature sensor and up to 15 GPIOs. Features Support Wi-Fi 802.11b/g/n, 1T1R mode data rate up to 150 Mbps Support BLE5.0, does not support classic Bluetooth, rate support: 125 Kbps, 500 Kbps, 1 Mbps, 2 Mbps RISC-V 32-bit single-core processor, supports a clock frequency of up to 160 MHz, has 400 KB SRAM, 384 KB ROM, 8 KB RTC SRAM Support UART/PWM/GPIO/ADC/I²C/I²S interface, support temperature sensor, pulse counter The development board has RGB three-in-one lamp beads, which is convenient for the second development of customers. Support multiple sleep modes, deep sleep current is less than 5 uA Serial port rate up to 5 Mbps Support STA/AP/STA+AP mode and promiscuous mode Support Smart Config (APP)/AirKiss (WeChat) of Android and iOS, one-click network configuration Support serial port local upgrade and remote firmware upgrade (FOTA) General AT commands can be used quickly Support secondary development, integrated Windows and Linux development environment About Flash configuration ESP-C3-12F uses the built-in 4 MB Flash of the chip by default, and supports the external Flash version of the chip.

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Seeed Studio XIAO ESP32C3 has equipped a highly-integrated ESP32-C3 chip, built around a 32-bit RISC-V chip processor with a four-stage pipeline that operates at up to 160 MHz.The board equips highly-integrated ESP32-C3 SoC. The chip has been installed with a complete 2.4 GHz Wi-Fi subsystem which means it supports Station mode, SoftAP mode, SoftAP & Station mode, and promiscuous mode for multiple Wi-Fi applications. It works under an ultra-low power state, also supporting features of Bluetooth 5 and Bluetooth mesh. There are 400 KB SRAM & 4 MB Flash on the chip, allowing for more programming space, and bringing more possibilities to the IoT control scenarios.Applications Internet of Things Wearable devices Health monitoring Education Low-Power (LP) networking Rapid prototyping Features Outstanding RF performance: Powerful ESP32-C3 SoC and U.FL antenna provided that supports WiFi/Bluetooth connection over 100 m. Thumb-size Design: 21 x 17.5 mm overall dimension, portable and lightweight. Low power consumption: Lowest as 44 μA (deep sleep mode), with 4 working modes available. Onboard battery charge IC: Supports battery charging, great for various wearable scenarios and wireless IoT applications. Specifications Processor ESP32-C3 SoC RISC-V single-core 32-bit chip processor with a four-stage pipeline that operates at up to 160 MHz Wireless Complete 2.4 GHz Wi-Fi subsystem Bluetooth 5.0 / Bluetooth mesh On-chip Memory 400 KB SRAM & 4 MB Flash Interface 1x UART, 1x I²C, 1x I²S, 1x SPI, 11x GPIO (PWM), 4x ADC 1x Reset button, 1x Boot button Dimensions 21 x 17.5 mm Power Circuit operating voltage: 3.3 V @ 200 mA Charging current: 50 mA/100 mA Input voltage (VIN): 5 V Deep Sleep Power Consumption Deep Sleep Model: >44 μA Wi-Fi Enabled Power Consumption Active Model: <75 mA Modem-sleep Model: <25 mA Light-sleep Model: <4 mA BLE Enabled Power Consumption Modem-sleep Model: <27 mA Light-sleep Model: <10 mA Included 1x Seeed Studio XIAO ESP32C3 1x Antenna Downloads XIAO ESP32 Pinout ESP32-C3 Datasheet

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ESP32-DevKitC is a low-footprint and entry-level development board that is part of the ESP32 series. This board has a rich peripheral set. The built-in ESP32 pinout is optimized for hassle-free prototyping! Wi-Fi & Bluetooth Connectivity This minimum-system development board is powered by an ESP32 module. It integrates Wi-Fi and Bluetooth functions, and provides a rich peripheral set for rapid prototyping! Rapid Prototyping ESP32-DevKitC achieves optimal RF performance. You can get right into application design and development, without worrying about RF performance and antenna design. ESP32-DevKitC has your basic system-requirements already covered. Just plug in the USB cable and you are ready to go! Flexible and Feature-Rich ESP32-DevKitC contains the entire support circuitry of ESP32-WROOM series, ESP32-WROVER series, and ESP32-SOLO series of modules, also including a USB-UART bridge, reset- and boot-mode buttons, an LDO regulator and a micro-USB connector. Every important GPIO is available to the developer. Breadboard-Friendly The ESP32-DevKitC pinout is optimized to enable prototyping on a breadboard. The on-board LDO output is led out for powering up additional off-board electronics. Peripheral outputs are grouped together for hassle-free prototyping. Specifications Board ESP32-DevKitC-32E Related Module ESP32-WROOM-32E Flash Memory 4 MB Antenna PCB Downloads Datasheet

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T-PicoC3 is LILYGO's first motherboard with dual MCUs – equipped with Raspberry Pi RP2040 and ESP32-C3 chip (supporting WiFi and Bluetooth).Specifications MCU RP2040 Dual ARM Cortex-M0+ Flash 4 MB Programming language C/C++, MicroPython Support machine leraning library TensorFlow Lite Onboard functions Buttons: IO06+IO07, battery power detection 1.14 inch ST7789V IPS LCD Resolution 135 x 240 Display Full-color TFT Interface 4-Wire SPI Power supply 3.3 V Operating temperature -20~70°C Dimensions 2.4 x 5.3 cm (W x H) DownloadsGitHub

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LILYGO T-Display ESP32 WiFi and Bluetooth Module Development Board 1.14-inch LCD Control BoardSpecifications Chipset Espressif-ESP32 240 MHz Xtensa single-/dual-core 32-bit LX6 microprocessor Flash QSPI flash 16 MB SRAM 520 kB SRAM Button Reset USB to TTL CP2104 Modular interface UART, SPI, SDIO, I²C, LED PWM, TV PWM, I²S, IRGPIO, ADC, capacitor touch sensor, DACLNA pre-amplifier Display IPS ST7789V 1.14 Inch Working voltage 2.7-4.2 V Working current About 67 MA Sleep current About 350 uA Working temperature range -40°C ~ +85°C Size & Weight 51.52 x 25.04 x 8.54 mm (7.81 g) Power Supply USB 5 V/1 A Charging current 500 mA Battery 3.7 V lithium battery JST Connector 2-Pin 1.25 mm USB Type-C WiFi Standard FCC/CE-RED/IC/TELEC/KCC/SRRC/NCC (ESP32 chip) Protocol 802.11 b/g/n (802.11n, speed up to 150 Mbps) A-MPDU and A-MSDU polymerization, support 0.4μS Protection interval Frequency range 2.4~2.5 GHz (2400~2483.5 M) Transmit Power 22 dBm Communication distance 300 m Bluetooth Protocol Meet bluetooth v4.2BR/EDR and BLE standard Radio frequency With -97 dBm sensitivity NZIF receiver Class-1, Class-2 & Class-3 emitter AFH Audio frequency CVSD&SBC audio frequency Software Wi-Fi Mode Station/SoftAP/SoftAP+Station/P2P Security mechanism WPA/WPA2/WPA2-Enterprise/WPS Encryption Type AES/RSA/ECC/SHA Firmware upgrade UART download/OTA (Through network/host to download and write firmware) Software Development Support cloud server development /SDK for user firmware development Networking protocol IPv4, IPv6, SSL, TCP/UDP/HTTP/FTP/MQTT User Configuration AT + Instruction set, cloud server, Android/iOS app OS FreeRTOS Included 1x T-Display (16 MB) 1x Charging Cable 2x Pin

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This ESP32 terminal is a microcontroller based on the ESP32 master. It adopts Xtensa 32-bit LX7 dual-core processor with a main frequency of up to 240 Mhz, supports 2.4 GHz Wi-Fi and Bluetooth 5 (LE), and can easily handle common edge terminal device application scenarios, such as industrial control, agricultural production environment detection and processing, intelligent logistics monitoring, smart home scenarios and more. The ESP32 module also has a 3.5-inch parallel RGB interface capacitive touch screen with a resolution of 320x480 to ensure perfect image output at a frame rate 60 FPS. The 4 Crowtail interfaces on the back of this terminal can be used with Crowtail series sensors, plug and play, and create more interesting projects quickly and conveniently. In addition, it is also equipped with an SD card slot for extended storage (SPI leads) and a buzzer function. The ESP32 touchscreen supports ESP-IDF and Arduino IDE development and is compatible with Python/MicroPython/Arduino. It also supports LVGL, which is the most popular free and open-source embedded graphics library to create beautiful UIs for any MCU, MPU, and display type. Now it has also obtained the official certification of LVGL. LVGL's board certificate shows that the boards can be easily used with LVGL and has decent performance for UI applications. The onboard charging circuit and lithium battery interface can use the type-C power supply interface to supply power and charge the battery at the same time, providing more outdoor scene expansion possibilities. Features Integrated ESP32-S3 module, which is support 2.4 GHz Wi-Fi and Bluetooth 5 (LE) LCD 3.5 inches parallel TFT-LCD with 320x480 resolution Compatible with Arduino/Python/MicrmoPython Mature software support, support ESP-IDF and Arduino IDE development Support open-source Graphics Library-LVGL Support 1T1R mode, data rate up to 150 Mbps, Wireless Multimedia (WMM) Perfect security mechanism, support AES-128/256, Hash, RSA, HMAC, digital signatures and secure boot Onboard charging chip and interface, use type-C interface to charge With 4 Crowtail interfaces (HY2.0-4P connector), plug and play with various Crowtail sensor Applications Smart Home Industrial Control Medical Monitor Home Appliance Display Logistics Monitoring Specifications ESP32-S3 module with 16 MB Flash and 8 MB PSRAM Wi-Fi Protocol: 802.11b/g/n (802.11n up to 150 Mbps) Wi-Fi Frequency Range: 2.402-2.483 Ghz Support Bluetooth 5 With 4 Crowtail interfaces (HY2.0-4P connector) and onboard Micro TF card slot 3.5-inch TFT LCD RGB true color LCD screen with 320x480 resolution Driver chip: ILI9488 (16-bit parallel line) Capacitive touch panel controller IC FT6236 series Operating Voltage: DC 5 V-500 mA Sleep current: USB power supply: 6.86 mA Lithium battery power supply: 3.23 mA LiPo Battery Interface: PH2.0 Operating temperature: -10°C ~ 65°C Active Area: 73.63 x 49.79 mm (L x W) Dimensions: 106 x 66 x 13 mm (L x W x H) Included 1x 3.5-inch ESP RGB Display with Acrylic Shell 1x USB-C Cable Downloads Wiki Schematic Diagram 16 learning Lessons for LVGL Source code Lesson code LVGL Reference ESP32-S3 Datasheet ILI9488 Datasheet Capacitive Touch Display Data

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This hardware kit is especially prepared for 'The Official ESP32 Book'. The kit contains all the components used in the projects in this book. With the help of this hardware kit it should be easy and fun to build the projects in the book. Included 1x ESP32 DevKitC 8x LEDs (RED) 1x LED (GREEN) 2x push-button 8x 330 ohm resistors 1x Buzzer 1x RGB LED 1x TMP36 temperature sensor chip 1x DHT11 temperature and humidity chip 1x MCP23017 (DIL 28 package) 1x LDR 1x BC108 (or any other PNP) transistor 1x 7 segment LED 1x Small Microphone Module 1x I²C LCD 1x SG90 servo 1x 4x4 Keypad 8x Female-Male jumpers 4x Male-Male jumpers 1x Small breadboard

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The T-Journal is a cheap ESP32 Camera Development Board that features an OV2640 camera, an antenna, a 0.91 inch OLED display, some exposed GPIOs, and a micro-USB interface. It makes it easy and quick to upload code to the board. Specifications Chipset Expressif-ESP32-PCIO-D4 240 MHz Xtensa single-/dual-core 32-bit LX6 microprocessor FLASH QSPI flash/SRAM, up to 4x 16 MB SRAM 520 kB SRAM KEY reset, IO32 Display 0.91' SSD1306 Power indicator lamp red USB to TTL CP2104 Camera OV2640, 2 Megapixel Steering engine analog servo On-board clock 40 MHz crystal oscillator Working voltage 2.3-3.6 V Working current about 160 mA Working temperature range -40℃ ~ +85℃ Size 64.57 x 23.98 mm Power Supply USB 5 V/1 A Charging current 1 A Battery 3.7 V lithium battery WiFi Standard FCC/CE/TELEC/KCC/SRRC/NCC (ESP32-chip) Protocol 802.11 b/g/n/e/i (802.11n, speed up to 150 Mbps) A-MPDU and A-MSDU polymerization, support 0.4 μS Protection interval Frequency range 2.4 GHz~2.5 GHz (2400 M ~ 2483.5 M) Transmit Power 22 dBm Communication distance 300m Bluetooth Protocol meet bluetooth v4.2BR/EDR and BLE standard Radio frequency with -98 dBm sensitivity NZIF receiver Class-1, Class-2 & Class-3 emitter AFH Audio frequency CVSD & SBC audio frequency Software Wifi Mode Station/SoftAP/SoftAP+Station/P2P Security mechanism WPA/WPA2/WPA2-Enterprise/WPS Encryption Type AES/RSA/ECC/SHA Firmware upgrade UART download/OTA (Through network/host to download and write firmware) Software Development Support cloud server development /SDK for user firmware development Networking protocol IPv4, IPv6, SSL, TCP/UDP/HTTP/FTP/MQTT User Configuration AT + Instruction set, cloud server, Android/iOS app OS FreeRTOS Included 1x ESP32 Camera Module (Fish-eye Lens) 1x Wi-Fi Antenna 1x Power Line Downloads Camera library for Arduino

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The ESP-WROOM-32, measuring 25.2 mm x 18 mm only, contains the ESP32 SoC, flash memory, precision discrete components, and PCB antenna to provide outstanding RF performance in space-constrained applications. ESP-WROOM-32 is a powerful, generic Wi-Fi + BT + BLE MCU module that targets a wide variety of applications, ranging from low-power sensor networks to the most demanding tasks, such as voice encoding, music streaming and MP3 decoding. At the core of this module is the ESP32-D0WDQ6 chip. The chip embedded is designed to be scalable and adaptive. There are two CPU cores that can be individually controlled, and the clock frequency is adjustable from 80 MHz to 240 MHz. The user may also power off the CPU and make use of the low-power co-processor to monitor the peripherals for changes or crossing of thresholds constantly. ESP32 integrates a rich set of peripherals, ranging from capacitive touch sensors, Hall sensors, SD card interface, Ethernet, high-speed SPI, UART, I²S and I²C. The integration of Bluetooth, Bluetooth LE and Wi-Fi ensures that a wide range of applications can be targeted and that the module is future proof. Using Wi-Fi allows a vast physical range and direct connection to the internet through a Wi-Fi router while using Bluetooth allows the user to conveniently connect to the phone or broadcast low energy beacons for its detection. The sleep current of the ESP32 chip is less than 5 µA, making it suitable for battery powered and wearable electronics applications. ESP32 supports a data rate of up to 150 Mbps, and 20.5 dBm output power at the antenna to ensure the broadest physical range. As such the chip does offer industry-leading specifications and the best performance for electronic integration, range, power consumption, and connectivity.

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With the M.2 MicroMod connector, connecting your ESP32 Processor is a breeze. Match up the key on your processor's bevelled edge connector to the key on the M.2 connector and secure it with a screw (included with all Carrier Boards). If you need to swap out your processor for a strong wireless option, make sure to check out the MicroMod ESP32! The ESP32 includes a laundry list of functionality, including the dual-core Tensilica LX6 microprocessor, 240MHz clock frequency, 520kB internal SRAM, integrated WiFi transceiver, integrated dual-mode Bluetooth, and hardware-accelerated encryption (AES, SHA2, ECC, RSA-4096). With this MicroMod processor board, you have access to 8 general use IO pins, dedicated analogue, digital, and PWM pins, as well as all the fan favourites - SPI, I²C, UART, and SDIO. Add to that 16MB flash storage and sleep current of around 500µA, and you've got a perfect storm of versatility. Features Dual-core Tensilica LX6 microprocessor Up to 240 MHz clock frequency 520 kB internal SRAM 128 mbit / 16 MB flash storage Integrated 802.11 BGN WiFi transceiver Integrated dual-mode Bluetooth (classic and BLE) 2.7-3.6 V operating range 500µA sleep current under hibernation 10-electrode capacitive touch support Hardware-accelerated encryption (AES, SHA2, ECC, RSA-4096) 1x USB dedicated for programming and debugging 1x UART 2x I²C 1x SPI 7x GPIO 2x Digital Pins 2x Analog Pins 2x PWM Status LED VIN Level ADC

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The ESP32-S3 Parallel TFT not only offers more SRAM and ROM (compared to the S2 version), but with Bluetooth 5.0 it is also suitable for applications such as local monitoring and controlling.The built-in LCD driver ILI9488 uses 16-bit parallel lines to communicate with ESP32-S3, the main clock can be up to 20 MHz, which makes the display smooth enough for video displays. With this display, you can create more IoT display projects.Features Controller: ESP32-S3-WROOM-1, PCB Antenna, 16 MB Flash, 2 MB PSRAM, ESP32-S3-WROOM-1-N16R2 Wireless: Wifi & Bluetooth 5.0 LCD: 3.5-inch TFT LCD Resolution: 480x320 Color: RGB LCD Interface: 16-bit parallel LCD Driver: ILI9488 Touch Panel: Capacitive Touch Panel Driver: FT6236 USB: Dual USB Type-C (one for USB-to-UART and one for native USB) UART to UART Chip: CP2104 Power Supply: USB Type-C 5.0 V (4.0 V~5.25 V) Button: Flash button and reset button Mabee Interface: 1x I²C, 1x GPIO Backlight Controller: Yes MicroSD: Yes Arduino support: Yes Type-C Power Delivery: Not supported Operation temperature: -40℃ to +85℃ Dimension: 66 x 84.3 x 12 mm Weight: 52 g Downloads ESP32-S3 Datasheet GitHub Wiki LVGL Demo Code

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ESP32-S2-Saola-1R is a small-sized ESP32-S2 based development board. Most of the I/O pins are broken out to the pin headers on both sides for easy interfacing. Developers can either connect peripherals with jumper wires or mount ESP32-S2-Saola-1R on a breadboard.ESP32-S2-Saola-1R is equipped with the ESP32-S2-WROVER module, a powerful, generic Wi-Fi MCU module that has a rich set of peripherals. It is an ideal choice for a wide variety of application scenarios relating to Internet of Things (IoT), wearable electronics and smart home. The board a PCB antenna and features a 4 MB external SPI flash and an additional 2 MB SPI Pseudo static RAM (PSRAM).FeaturesMCU ESP32-S2 embedded, Xtensa® single-core 32-bit LX7 microprocessor, up to 240 MHz 128 KB ROM 320 KB SRAM 16 KB SRAM in RTC Wi­Fi 802.11 b/g/n Bit rate: 802.11n up to 150 Mbps A-MPDU and A-MSDU aggregation 0.4 µs guard interval support Center frequency range of operating channel: 2412 ~ 2484 MHz Hardware Interfaces: GPIO, SPI, LCD, UART, I²C, I²S, Camera interface, IR, pulse counter, LED PWM, TWAI (compatible with ISO 11898-1), USB OTG 1.1, ADC, DAC, touch sensor, temperature sensor 40 MHz crystal oscillator 4 MB SPI flash Operating voltage/Power supply: 3.0 ~ 3.6 V Operating temperature range: –40 ~ 85 °C Dimensions: 18 × 31 × 3.3 mm Applications Generic Low-power IoT Sensor Hub Generic Low-power IoT Data Loggers Cameras for Video Streaming Over-the-top (OTT) Devices USB Devices Speech Recognition Image Recognition Mesh Network Home Automation Smart Home Control Panel Smart Building Industrial Automation Smart Agriculture Audio Applications Health Care Applications Wi-Fi-enabled Toys Wearable Electronics Retail & Catering Applications Smart POS Machines

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PÚCA DSP is an open-source, Arduino-compatible ESP32 development board for audio and digital signal processing (DSP) applications with expansive audio-processing features. It provides audio inputs, audio outputs, a low-noise microphone array, an integrated test-speaker option, additional memory, battery-charge management, and ESD protection all on a small, breadboard-friendly PCB. Synthesizers, Installations, Voice UI, and More PÚCA DSP can be used for a wide range of DSP applications, including but not limited to those in the fields of music, art, creative technology, and adaptive technology. Music-related examples include digital-music synthesis, mobile recording, Bluetooth speakers, wireless line-level directional microphones, and the design of smart musical instruments. Art-related examples include acoustic sensor networks, sound-art installations, and Internet-radio applications. Examples related to creative and adaptive technology include voice user interface (VUI) design and Web audio for the Internet of Sounds. Compact, Integrated Design PÚCA DSP was designed for portability. When used with an external 3.7 V rechargeable battery, it can be deployed almost anywhere or integrated into just about any device, instrument, or installation. Its design emerged from months of experimentation with various ESP32 development boards, DAC breakout boards, ADC breakout boards, Microphone breakout boards, and audio-connector breakout boards, and – despite its diminutive size – it manages to provide all of that functionality in a single board. And it dos so without compromising signal quality. Specifications Processor & Memory Espressif ESP32 Pico D4 Processor 32-bit dual core 80 MHz / 160 MHz / 240 MHz 4 MB SPI Flash with 8 MB additional PSRAM (Original Edition) Wireless 2.4 GHz Wi-Fi 802.11b/g/n Bluetooth BLE 4.2 3D Antenna Audio Wolfson WM8978 Stereo Audio Codec Audio Line In on 3.5 mm stereo onnector Audio Headphone / Line Out on 3.5 mm stereo connector Stereo Aux Line In, Audio Mono Out routed to GPIO Header 2x Knowles SPM0687LR5H-1 MEMS Microphones ESD protection on all audio inputs and outputs Support for 8, 11.025, 12, 16, 22.05, 24, 32, 44.1 and 48 kHz sample rates 1 W Speaker Driver, routed to GPIO Header DAC SNR 98 dB, THD -84 dB (‘A’ weighted @ 48 kHz) ADC SNR 95 dB, THD -84 dB (‘A’ weighted @ 48 kHz) Line input impedance: 1 MOhm Line output impedance: 33 Ohm Form Factor and Connectivity Breadboard friendly 70 x 24 mm 11x GPIO pins broken out to 2.54 mm pitch header, with access to both ESP32 ADC channels, JTAG and capacitive touch pins USB 2.0 over USB Type C connector Power 3.7/4.2 V Lithium Polymer Rechargeable Battery, USB or external 5 V DC power source ESP32 and Audio Codec can be placed into low power modes under software control Battery voltage level detection ESD protection on USB data bus Downloads GitHub Datasheet Links Crowd Supply Campaign (includes FAQs) Hardware Overview Programming the Board The Audio Codec

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ATOM U is a compact low-power consumption speech recognition IoT development kit. It adopts an ESP32 chipset, equipped with 2 low-power Xtensa 32-bit LX6 microprocessors with the main frequency of up to 240 MHz. Built-in USB-A interface, IR emitter, programmable RGB LED. Plug-and-play, easy to upload and download programs. Integrated Wi-Fi and digital microphone SPM1423 (I2S) for the clear sound record. suitable for HMI, Speech-to-Text (STT). Low-code development ATOM U supports UIFlow graphical programming platform, scripting-free, cloud push; Fully compatible with Arduino, MicroPython, ESP32-IDF, and other mainstream development platforms, to quickly build various applications. High integration ATOM U contains a USB-A port for programming/power supply, IR emitter, programmable RGB LED x1, button x1; Finely tuned RF circuit, providing stable and reliable wireless communication. Strong expandability ATOM U is easy access to M5Stack's hardware and software system. Features ESP32-PICO-D4 (2.4GHz Wi-Fi dual mode) Integrated programmable RGB LED and button Compact design Built-in IR emitter Expandable pinout and GROVE port Development platform: UIFlow MicroPython Arduino Specifications ESP32-PICO-D4 240MHz dual core, 600 DMIPS, 520KB SRAM, 2.4G Wi-Fi Microphone SPM1423 Microphone sensitivity 94 dB SPL@1 KHz Typical value: -22 dBFS Microphone signal-to-noise ratio 94 dB SPL@1 KHz, A-weighted Typical value: 61.4 dB Standby working current 40.4 mA Support input sound frequency 100 Hz ~ 10 KHz Support PDM clock frequency 1.0 ~ 3.25 MHz Weight 8.4 g Product size 52 x 20 x 10 mm Downloads Documentation

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This LILYGO T-Beam V1.2 ESP32 LoRa Development Board comes with pre-installed Meshtastic and soldered 0.96' display. The board has a built-in Semtech SX1262 LoRa transceiver and is equipped with a NEO-6M GPS receiver. GPS NEO-6M GPS module: Support GPS protocol Onboard RTC crystal: Support interrupt/wakeup LoRa Long Range Low Power LoRa Transceiver High sensitivity: -i48 dBm Transceive rate: 300 kbps Version: SX1276 (868 MHz) Firmware: Meshtastic Display OLED: 0.96 inch Driver: SSD1306 Specifications Microcontroller ESP32 Flash 4 MB PSRAM 8 MB Serial Chip CH9102 Wireless protocol Wi-Fi + Bluetooth 4.2 PMU AXP2101 Onboard functions 3 buttons (Power + IO38 + Reset) Power supply Micro USB, 18650 battery Antenna 3D WiFi Antenna LoRa antenna GPS ceramic antenna Included 1x LILYGO T-Beam V1.2 CH9102 1x 868 MHz Antenna 1x Soldered 0.96' LCD (128x64) 2x Pin headers Downloads GitHub Schematics

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This display features an IPS resolution of 480x480 with capacitive touch and a frame rate of up to 75 FPS. It is very bright and has 65,000 colors. The mechanical rotary encoder supports clockwise/counterclockwise rotation and also supports the entire pressing process, which can usually be used to confirm the process. The display module is based on ESP32-S3 with WiFi & Bluetooth 5.0 to easily connect to the Internet for IoT projects. It can be powered and programmed directly via the USB port. It also has two expansion ports, I²C and UART. Specifications Controller ESP32-S3 WROOM-1-N16R8 (16 MB Flash, 8 MB PSRAM, PCB antenna) Wireless WiFi & Bluetooth 5.0 Resolution 480x480 LCD 2.1' IPS LCD, 65K color LCD driver ST7701S Frame rate >70 FPS LCD interface RGB 565 Touch panel 5-points capacitive touch Touch panel driver CST8266 USB USB-C native Interfaces 1x I²C, 1x UART (1.25 mm, 4-pin connector) Arduino support Yes Downloads Wiki Usage with Squareline/LVGL GitHub Datasheet_ESP32-S3-WROOM-1

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The Joy-Pi Advanced is a compact and powerful device that allows you to realize your projects quickly and easily. Whether you already have a lot of experience, or next to none, the Joy-Pi Advanced lets you unleash your creativity. Thanks to its compatibility with a wide range of platforms, including Raspberry Pi, Raspberry Pi Pico, Arduino Nano, BBC micro:bit, and NodeMCU ESP32, you can easily and quickly access your preferred platform. In addition, the Joy-Pi Advanced features more than 30 stations, lessons, and modules, giving you an unlimited variety of ways to get your projects done. With the self-developed learning center, you can not only improve your skills but also create new projects. The learning center offers a wealth of information and tutorials that will guide you step by step through your projects. Joy-Pi Advanced is characterized in particular by its intelligent switch units, which allow an extended use of the available pins. A total of three switch units are integrated, each equipped with 12 individual switches that provide precise control of the connected sensors and modules. This system solves the well-known problem of limited pin count that occurs with conventional microcontrollers. The switch units allow you to operate a large number of sensors and modules in parallel by switching them on and off individually. This simulates multiple pin assignment, allowing you to exploit the full power of your projects without compromising functionality. By combining innovative adapter boards and the micro:bit slot, you can achieve seamless compatibility with a wide range of microcontrollers such as Raspberry Pi Pico, NodeMCU ESP32, micro:mit and Arduino Nano. The specially developed adapter boards are designed to perfectly match the respective microcontroller. By plugging the microcontroller onto the appropriate adapter board and then plugging it into the micro:bit slot, the Joy-Pi Advanced quickly and easily becomes compatible with the different microcontrollers. This allows seamless integration of your preferred platform and the ability to combine the strengths of the different microcontrollers in your projects. This way, you can fully focus on your creative projects without worrying about the compatibility of different microcontrollers. The Joy-Pi Advanced simplifies the development process and gives you the possibility to design your projects flexibly and individually. Features Highly integrated development platform & learning center Fast, easy & wireless combination of various sensors & actuators Installation option for Raspberry Pi 4 Compatible with various microcontrollers Self-developed, didactic learning platform for Raspberry Pi & Windows Specifications Compatible to Raspberry Pi 4, Arduino Nano, NodeMCU ESP32, BBC micro:bit, Raspberry Pi Pico Installed sensors, actuators & components 39 Learning platform Over 40 entries in the know-ledge database, 10 projects, 10 learning tasks, 14 visions Displays 7-segment display, 16x2 display, 1.8“ TFT display, 0.96“ OLED display, 8x8 RGB matrix Sensors DS18B20, shock sensor, hall sensor, barometer, sound sensor, gyroscope, PIR sensor, Light barrier, NTC, Light sensor, 6x touch sensor, color sensor, ultrasonic distance sensor, DHT11 temperature & humidity sensor Control Joystick, 5x switches, potentiometer, rotary encoder, 4x4 button matrix, relays, PWM fan Motors Servo interface, Stepper motor interface, Vibration motor Measuring & conversion modules Analog-Digital Converter, Level converter, voltmeter, Variable voltage supply Other components RTC real time clock, buzzer, EEPROM memory, infrared receiver, breadboard, RFID reader Adapter boards Adapter for NodeMCU ESP32, Arduino Nano & Raspberry Pi Pico, Board connectors for Raspberry Pi & External Boards Electronic components Infrared remote control, RFID chip, RFID card, 6x alligator clips, microSD card reader, servo motor, stepper motor, 32 GB microSD card Components 40x resistors, 3x green LEDs, 3x yellow LEDs, 3x red LEDs, 1x transistor, 5x buttons, 1x potentiometer, 2x capacitors Other accessories Screw assortment, screwdriver, accessory storage bag, power supply & power cable, servo mount Power supply Built-in power supply: 36 W, 12 V, 3 A Case connector: Small device plug C8 Voltage outputs 12 V, 5 V, 3.3 V, Variable voltage output (2-11 V) Data buses & signal outputs I²C, SPI, Analog to digital converter Battery (RTC) CR2032 Dimensions 327 x 200 x 52 mm Required Raspberry Pi 4 Downloads Joy-Pi website Datasheet Manual

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The T-Journal is a cheap ESP32 Camera Development Board that features an OV2640 camera, an antenna, a 0.91-inch OLED display, some exposed GPIOs, and a micro-USB interface. It makes it easy and quick to upload code to the board. Specifications Chipset Expressif-ESP32-PCIO-D4 240 MHz Xtensa single-/dual-core 32-bit LX6 microprocessor FLASH QSPI flash/SRAM, up to 4x 16 MB SRAM 520 kB SRAM KEY reset, IO32 Display 0.91' SSD1306 Power indicator lamp red USB to TTL CP2104 Camera OV2640, 2 Megapixel Steering engine analog servo On-board clock 40 MHz crystal oscillator Working voltage 2.3-3.6 V Working current about 160 mA Working temperature range -40℃ ~ +85℃ Size 64.57 x 23.98 mm Power Supply USB 5 V/1 A Charging current 1 A Battery 3.7 V lithium battery WiFi Standard FCC/CE/TELEC/KCC/SRRC/NCC (ESP32-chip) Protocol 802.11 b/g/n/e/i (802.11n, speed up to 150 Mbps) A-MPDU and A-MSDU polymerization, support 0.4 μS Protection interval Frequency range 2.4 GHz~2.5 GHz (2400 M ~ 2483.5 M) Transmit Power 22 dBm Communication distance 300m Bluetooth Protocol meet bluetooth v4.2BR/EDR and BLE standard Radio frequency with -98 dBm sensitivity NZIF receiver Class-1, Class-2 & Class-3 emitter AFH Audio frequency CVSD & SBC audio frequency Software Wifi Mode Station/SoftAP/SoftAP+Station/P2P Security mechanism WPA/WPA2/WPA2-Enterprise/WPS Encryption Type AES/RSA/ECC/SHA Firmware upgrade UART download/OTA（Through network/host to download and write firmware) Software Development Support cloud server development /SDK for user firmware development Networking protocol IPv4, IPv6, SSL, TCP/UDP/HTTP/FTP/MQTT User Configuration AT + Instruction set, cloud server, Android/iOS app OS FreeRTOS Included 1x ESP32 Camera Module (Normal Lens) 1x Wi-Fi Antenna 1x Power Line Downloads Camera library for Arduino

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Seeed Studio XIAO ESP32S3 Sense integrates a camera sensor, digital microphone, and SD card support. Combining embedded ML computing power and photography capability, this development board can be your great tool to get started with intelligent voice and vision AI. Seeed Studio XIAO ESP32S3 Sense is built around a highly-integrated, Xtensa processor ESP32-S3R8 SoC, which supports 2.4 GHz WiFi and low-power Bluetooth BLE 5.0 dual-mode for multiple wireless applications. It has lithium battery charge management capability. As the advanced version of Seeed Studio XIAO ESP32S3, this board comes with a plug-in OV2640 camera sensor for displaying full 1600x1200 resolution. The base of it is even compatible with OV5640 for supporting up to 2592x1944 resolution. The digital microphone is also carried with the board for voice sensing and audio recognition. SenseCraft AI provides various pre-trained Artificial Intelligence (AI) models and no-code deployment to XIAO ESP32S3 Sense. With powerful SoC and built-in sensors, this development board has 8 MB PSRAM and 8 MB Flash on the chip, an additional SD card slot for supporting up to 32 GB FAT memory. These allow the board for more programming space and bring even more possibilities into embedded ML scenarios. Features Powerful MCU Board: Incorporate the ESP32S3 32-bit, dual-core, Xtensa processor chip operating up to 240 MHz, mounted multiple development ports, Arduino/MicroPython supported Advanced Functionality: with OV5640 camera sensor, integrating additional digital microphone Great Memory for more Possibilities: Offer 8 MB PSRAM and 8 MB Flash, supporting SD card slot for external 32 GB FAT memory Outstanding RF performance: Support 2.4 GHz Wi-Fi and BLE dual wireless communication, support 100m+ remote communication when connected with U.FL antenna Thumb-sized Compact Design: 21 x 17.5 mm, adopting the classic form factor of XIAO, suitable for space-limited projects like wearable devices Pretrained Al model from SenseCraft Al for no-code deployment Applications Image processing Speech Recognition Video Monitoring Wearable devices Smart Homes Health monitoring Education Low-Power (LP) networking Rapid prototyping Specifications Processor ESP32-S3R8 Xtensa LX7 dual-core, 32-bit processor that operates at up to 240 MHz Wireless Complete 2.4 GHz Wi-Fi subsystem BLE: Bluetooth 5.0, Bluetooth mesh Built-in Sensors oV2640 camera sensor for 1600x1200 Digital Microphone Memory On-chip 8 MB PSRAM & 8 MB Flash Onboard SD Card Slot, supporting 32 GB FAT lnterface 1x UART, 1x I²C, 1x I²S, 1x SPI, 11x GPIOs (PWM), 9x ADC, 1x User LED, 1x Charge LED, 1x B2B Connector (with 2 additional GPIOs) 1x Reset button, 1x Boot button Dimensions 21 x 17.5 x 15 mm (with expansion board) Power Input voltage (Type-C): 5 V lnput voltage (BAT): 4.2 V Circuit operating Voltage (ready to operate): - Type-C: 5 V @ 38.3 mA - BAT: 3.8 V @ 43.2 mA (with expansion board) Webcam Web application: Type-C: - Average power consumption: 5 V/138 mA - Photo moment: 5 V/341 mA Battery: - Average power consumption: 3.8 V/154 mA - Photo moment: 3.8 V/304 mA Microphone recording & SD card writing: Type-C: - Average power consumption: 5 V/46.5 mA - Peak power consumption: 5 V/89.6 mA Battery: - Average power consumption: 3.8 V/54.4 mA - Peak power consumption: 3.8 V/108 mA Charging battery current: 100 mA Low Power Consumption Model (Supply Power: 3.8 V) Modem Sleep Model: ~44 mA Light Sleep Model: ~5 mA Deep Sleep Model: ~3 mA Wi-Fi Enabled Power Consumption Active Model: ~ 110 mA (with expansion board) BLE Enabled Power Consumption Active Model: ~ 102 mA (with expansion board) Included 1x XIAO ESP32S3 1x Plug-in camera sensor board 1x Antenna Downloads GitHub

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ESP32-S2-Saola-1M is a small-sized ESP32-S2 based development board. Most of the I/O pins are broken out to the pin headers on both sides for easy interfacing. Developers can either connect peripherals with jumper wires or mount ESP32-S2-Saola-1M on a breadboard.ESP32-S2-Saola-1M is equipped with the ESP32-S2-WROOM module, a powerful, generic Wi-Fi MCU module that has a rich set of peripherals. It is an ideal choice for a wide variety of application scenarios relating to Internet of Things (IoT), wearable electronics and smart home. The board a PCB antenna and features a 4 MB external SPI flash.FeaturesMCU ESP32-S2 embedded, Xtensa® single-core 32-bit LX7 microprocessor, up to 240 MHz 128 KB ROM 320 KB SRAM 16 KB SRAM in RTC Wi­Fi 802.11 b/g/n Bit rate: 802.11n up to 150 Mbps A-MPDU and A-MSDU aggregation 0.4 µs guard interval support Center frequency range of operating channel: 2412 ~ 2484 MHz Hardware Interfaces: GPIO, SPI, LCD, UART, I²C, I²S, Camera interface, IR, pulse counter, LED PWM, TWAI (compatible with ISO 11898-1), USB OTG 1.1, ADC, DAC, touch sensor, temperature sensor 40 MHz crystal oscillator 4 MB SPI flash Operating voltage/Power supply: 3.0 ~ 3.6 V Operating temperature range: –40 ~ 85 °C Dimensions: 18 × 31 × 3.3 mm Applications Generic Low-power IoT Sensor Hub Generic Low-power IoT Data Loggers Cameras for Video Streaming Over-the-top (OTT) Devices USB Devices Speech Recognition Image Recognition Mesh Network Home Automation Smart Home Control Panel Smart Building Industrial Automation Smart Agriculture Audio Applications Health Care Applications Wi-Fi-enabled Toys Wearable Electronics Retail & Catering Applications Smart POS Machines

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