The nRF52840 dongle is a small, low-cost USB dongle that supports Bluetooth 5.3, Bluetooth mesh, Thread, ZigBee, 802.15.4, ANT and 2.4 GHz proprietary protocols. The dongle is the perfect target hardware for use with nRF Connect for Desktop as it is low-cost but still support all the short range wireless standards used with Nordic devices.
The dongle has been designed to be used as a wireless HW device together with nRF Connect for Desktop. For other use cases please do note that there is no debug support on the dongle, only support for programming the device and communicating through USB.
It is supported by most of the nRF Connect for Desktop apps and will automatically be programmed if needed. In addition custom applications can be compiled and downloaded to the dongle. It has a user programmable RGB LED, a green LED, a user programmable button as well as 15 GPIO accessible from castellated solder points along the edge. Example applications are available in the nRF5 SDK under the board name PCA10059.
The nRF52840 dongle is supported by nRF Connect for Desktop as well as programming through nRFUtil.
Features
Bluetooth 5.2 ready multiprotocol radio
2 Mbps
Long Range
Advertising Extensions
Channel Selection Algorithm #2 (CSA #2)
IEEE 802.15.4 radio support
Thread
ZigBee
Arm Cortex-M4 with floating point support
DSP instruction set
ARM CryptoCell CC310 cryptographic accelerator
15 GPIO available via edge castellation
USB interface direct to nRF52840 SoC
Integrated 2.4 GHz PCB antenna
1 user-programmable button
1 user-programmable RGB LED
1 user-programmable LED
1.7-5.5 V operation from USB or external
Downloads
Datasheet
Hardware Files
Differences between micro:bit v1 and micro:bit v2 The BBC micro:bit v2 is equipped with BLE Bluetooth 5.0 It has a Power off button(push and hold power button) MEMS microphone with a LED indicator Onboard speaker Touch-sensitive logo pin LED power indicator A notched edge connector for easier connections.
The TV-B-Gone universal remote control allows you to turn virtually any TV On or OFF. You control when you see TV, rather than what you see. The TV-B-Gone Keychain remote is so small that it easily fits in your pocket so that you have it handy whenever you need it, wherever you go: bars, restaurants, laundromats, ballparks, arenas, etc.The TV-B-Gone Kit is a great way to teach about electronics. When soldered together, it allows you to turn off almost any television within 150 feet or more. It works on over 230 total power codes – 115 American/Asian and another 115 European codes. You can select which zone you want during kit assembly.This is an unassembled kit which means that soldering and assembly is required – but it’s very easy and a great introduction to soldering in general.This kit makes the popular TV-B-Gone remote more fun because you created it yourself with some basic soldering and assembly! Show your friends and family how technologically savvy you are, and entertain them with the power of the TV-B-Gone!The kit is powered by 2x AA batteries and the output comes from 2x narrow beam IR LEDs and 2x wide-beam IR LEDs.IncludedAll required parts/componentsRequiredTools, soldering iron, and batteriesDownloadsGitHub
Features Built-in USB to TTL transfer chip TTL interface output, easy to connect to the MCU Status LED Dual 3.3 V and 5 V power output, working with 3.3 V and 5 V target device Size: 55 x 16 mm
This FTDI USB to TTL (3.3 V I/O) Serial Cable (FTDI TTL-232R-3V3 OEM) is a professional, high quality, high speed device which allows a simple and easy way to connect TTL interface devices using a spare USB port. Features TTL-232R-3V3 FTDI USB to TTL 3.3 V Serial Cable FTDI TTL-232R-3V3 Cable 6 Way The FTDI USB to TTL 3.3 V features a FTDI FT232R device integrated within the cable FTDI USB to TTL Serial 3.3 V Adapter Cable 6 Pin 0.1' Female Socket Header UART IC FT232RL Chip Compatible with Windows 7/8/10 and Linux
WCH CH32V307 RISC-V development board features 8 UART ports controlled over Ethernet The CH32V307 is an interconnected microcontroller, based on 32-bit RISC-V core, with hardware stack area and fast interrupt entry. Compared with standard RISC-V, the interrupt response speed is greatly improved. With single-precision float point instruction sets added and stack area extended, the CH32V307 has higher performance, the number of U(S)ART is extended to 8, and the number of motor timer is extended to 4. The CH32V307 provides USB2.0 high-speed interface (480 Mbps) and has built-in PHY transceiver. Ethernet MAC is upgraded to GbE and integrates 10M PHY module. Features RISC-V4F processor, max 144 MHz system clock frequency Single-cycle multiplication and hardware division, hardware float point unit (FPU) 64KB SRAM, 256 KB Flash Supply voltage: 2.5 V/3.3 V, GPIO unit is supplied independently Multiple low-power modes: sleep/stop/standby Power-on/power-down reset (POR/PDR), programmable voltage detector (PVD) 2 general DMA controllers, 18 channels in total 4 amplifiers Single true random number generator (TRNG) 2x 12-bit DAC 2-unit 16-channel 12-bit ADC, 16-channel TouchKey 10 timers USB2.0 full-speed OTG interface USB2.0 high-speed host/device interface (built-in 480 Mbps PHY) 3 USARTs, 5 UARTs 2 CAN interfaces (2.0B active) SDIO interface, FSMC interface, DVP 2x I²C, 3x SPI, 2x I²S 80 I/O ports, can be mapped to 16 external interrupts CRC calculation unit, 96-bit unique chip ID Serial 2-wire debug interface Packages: LQFP64M, LQFP100 Downloads Datasheet GitHub
The Mendocino Motor AR O-8 is a magnetically levitated, solar powered electric motor as a kit.Light Becomes MovementThe solar-powered Mendocino motor seems to float in the air. At first glance, you can't see why the rotor is turning at all. This is the magic of the motor.The Lorentz force is a very small electrical force. In a classroom setting, it is detected by a current swing in the magnetic field. With the Mendocino motor, we have succeeded in developing a beautiful application that uses this weak force for propulsion. Due to its concealed base magnet, the motor will fascinate technically inclined observers.In bright sunlight, the motor can reach a speed of up to 1,000 rpm. More impressive, however, is that even the faint glow of an ample tea light (D = 6 cm with a flame height of about 2 cm) is sufficient to drive the motor. The motor is not yet an alternative source of energy, even though it looks tempting. Presumably, it will remain an attractive model until a resourceful mind disproves this assumption.Dimensions
All solar cells 65 x 20 mm
Mirror diameter: 25 mm
Rotor weight: approx. 150 g
Model length: 160 mm
Model width: 85 mm
Frame height: approx. 85 mm
Frame material: black acrylic
Tube made of highly polished aluminum
Mirror color: silver
The Mendocino motor’s easy-to-follow instruction manual includes more than 70 illustrations. It describes a safe and practical approach to construction but also gives you the freedom to try your solutions.Partly Pre-Assembled KitA portion of the kit comes pre-assembled. Bonding the borosilicate glass pane to the acrylic surface requires specialized knowledge and aids. We do not want to impose this on the hobbyist. For instance, the base magnet is attached to the aluminum tube.As a hobbyist, you will need some know-how and appropriate tools: carpet knife, soldering iron and tin, hot glue, pliers, and a clamp or ferrule to fix the supplied assembly aid. A lot of fun is guaranteed!
Features Fully assembled and tested Nixie clock Six tested IN-14 Nixie tubes mounted to the clock base Two neon colon tubes installed into the clock base 12 V DC power adapter IR remote control Built-in proximity sensor User manual This clock is a combination of modern technologies and vintage Nixie tubes. It is a perfect gift for your friend and definitely will fit into any interior. Warm glowing of the neon will fill your house with soft orange light at night and will serve as a night light. The clock is built with 6 numeric IN-14 Nixie tubes. A built-in RGB LED backlight (with 10 levels for each channel) allow you to set your favorite color. Time accuracy is provided with built-in RTC (Real Time Clock DS3231) module and backuped with CR2032 battery while the clock is powered off. At the end of each minute (could be configured to be set from 1-5 minutes period or completely disabled) starts 'Slot Machine' feature that helps to prevent cathode poisoning effect. It scrolls over all numbers from 0 to 9. It is necessary to prolong tubes lifespan. Current date is shown each 1-5-th minute in 3 various formats: DD:MM:YY, MM:DD:YY or YY:MM:DD. The current time could be configured to 12 or 24 hour format. There are also three modes for colon tubes: Blinks once a second (is set as a default option) Permanently OFF Permanently ON The clock could be set to beep once an hour (when hour starts). The clock also has an alarm feature. All settings are stored in non-volatile memory (settings are restored after power-offs). Dimensions Height: 20 mm Width: 175 mm Length: 70 mm Tube height: 45 mm
Features Build in USB to Serial interface Build-in PCB antenna Powered by Pineseed BL602 SoC using Pinenut model: 12S stamp 2 MB Flash USB-C connection Suitable to breadboard BIY project On board three color LEDs output Dimensions: 25.4 x 44.0 mm Note: USB cable is not included.
Lora technology and Lora devices have been widely used in the field of the Internet of Things (IoT), and more and more people are joining and learning Lora development, making it an indispensable part of the IoT world. To help beginners learn and develop Lora technology better, a Lora development board has been designed specifically for beginners, which uses RP2040 as the main control and is equipped with the RA-08H module that supports Lora and LoRaWAN protocols to help users realize development. RP2040 is a dual-core, high-performance, and low-power ARM Cortex-M0+ architecture chip, suitable for IoT, robots, control, embedded systems, and other application fields. RA-08H is made from the Semtech-authorized ASR6601 RF chip, which supports the 868 MHz frequency band, has a 32 MHz MCU built-in, which has more powerful functions than ordinary RF modules, and also supports AT command control. This board retains various functional interfaces for development, such as the Crowtail interface, the common PIN to PIN header that leads out GPIO ports, and provides 3.3 V and 5 V outputs, suitable for the development and use of commonly used sensors and electronic modules on the market. In addition, the board also reserves RS485 interface, SPI, I²C, and UART interfaces, which can be compatible with more sensors/modules. In addition to the basic development interfaces, the board also integrates some commonly used functions, such as a buzzer, a custom button, red-yellow-green three-color indicator lights, and a 1.8-inch SPI interface LCD screen with a resolution of 128x160. Features Uses RP2040 as the main controller, with two 32-bit ARM Cortex M0+ processor cores (dual-core), and provides more powerful performance Integrates the RA-08H module with 32 MHz MCU, supports the 868 MHz frequency band and AT command control Abundant external interface resources, compatible with Crowtail series modules and other common interface modules on the market Integrates commonly used functions like buzzer, LED light, LCD display and custom button, making it more concise and convenient when creating projects Onboard 1.8-inch 128x160 SPI-TFT-LCD, ST7735S driver chip Compatible with Arduino/Micropython, easy to carry out different projects Specifications Main Chip Raspberry Pi RP2040, built-in 264 KB SRAM, onboard 4 MB Flash Processor Dual Core Arm Cortex-M0+ @ 133 MHz RA-08H Frequency band 803-930 MHz RA-08H Interface External antenna, SMA interface or IPEX first-generation interface LCD Display Onboard 1.8-inch 128x160SPI-TFT-LCD LCD Resolution 128x160 LCD Driver ST7735S (4-wire SPI) Development environment Arduino/MicroPython Interfaces 1x passive buzzer 4x user-defined buttons 6x programmable LEDs 1x RS485 communication interface 8x 5 V Crowtail interfaces (2x analog interfaces, 2x digital interfaces, 2x UART, 2x I²C) 12x 5 V universal pin header IO 14x 3.3 V universal pin header IO 1x 3.3 V/5 V switchable SPI 1x 3.3 V/5 V switchable UART 3x 3.3 V/5 V switchable I²C Working input voltage USB 5 V/1 A Operating temperature -10°C ~ 65°C Dimensions 102 x 76.5 mm (L x W) Included 1x Lora RA-08H Development Board 1x Lora Spring Antenna (868 MHz) 1x Lora Rubber Antenna (868 Mhz) Downloads Wiki
Fibox offers a quality enclosure that can be mounted to a wall, pole or frame. Material: Polycarbonate Temperatures: -40 °C to 80 °C Smoked transparent cover Ingress Protection (EN 60529): IP66/IP67
Dimensions: 130 x 80 x 60 mm Included Base with TPE gasket, screws for mounting plate/DIN-rail and cover with polyamide cover screws.
Do you need a simple AI camera to enhance your projects? The HuskyLens AI Camera intuitive design allows the user to control different aspects of the camera just by pressing buttons. You can start and stop learning new objects and even switch between algorithms from the device. To further reduce the need to be connected to a PC the HuskyLens AI Camera comes with a 2-inch display so you can see what's going on in real time. Specifications Processor: Kendryte K210 Image Sensor: OV2640 (2.0 Megapixel Camera) Supply Voltage: 3.3~5.0 V Current Consumption (TYP): 320 mA @ 3.3 V, 230 mA @ 5.0 V (face recognition mode; 80% backlight brightness; fill light off) Connection Interface: UART, I²C Display: 2.0-inch IPS screen with 320x240 resolution Built-in Algorithms: Face Recognition, Object Tracking, Object Recognition, Line Tracking, Color Recognition, Tag Recognition Dimension: 52 x 44.5 mm (2.05 x 1.75') Included 1x HuskyLens Mainboard 6x M3 Screws 6x M3 Nuts 1x Small Mounting Bracket 1x Heightening Bracket 1x Gravity 4-Pin Sensor Cable
SwiftIO offers a full Swift compiler and framework environment that runs on the microcontroller. The SwiftIO board is a compact electronic circuit board that runs Swift on the bare metal, giving you a system that can be used to control all kinds of electronic projects. Features NXP i.MX RT1052 Crossover Processor with ARM Cortex-M7 core @ 600 MHz 8 MB SPI Flash, 32 MB SDRAM On-board DAPLink debugger On-board USB to UART for serial communication On-board RGB LED On-board SD socket 46x GPIO, 12x ADC, 14x PWM, 4x UART, 2x I²C, 2x SPI etc. Many additional advanced features to meet the needs of advanced users Zephyr RTOS support MadMachine IDE is the premier integrated development environment for SwiftIO, which makes it easy to write Swift code and download it to the board.
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
This easy-to-use 40-meter laser-based optical ranging sensor has all the core features that made the LIDAR-Lite v2 popular. Small in form and light in weight with a low power consumption of less than 130 mA during an acquisition. And it’s user-configurable, so you can adjust between accuracy, operating range and measurement time. Each LIDAR-Lite v3 features an edge-emitting, 905 nm (1.3 watts), single-stripe laser transmitter, 4 m Radian x 2 m Radian beam divergence, and an optical aperture of 12.5 mm. The third version of the LIDAR-Lite still operates at 5 V DC with a current consumption rate of <100 mA at continuous operation. On top of everything else, the LIDAR-Lite is user-configurable, allowing adjustment between accuracy, operating range and measurement time. It can be interfaced via I²C or PWM with the included 200 mm accessory cable. Features Range: 0 - 40 m Laser Emitter Accuracy: +/- 2.5 cm at distances greater than 1 m Power: 4.75 V- 5 V DC; 6 V Max Current Consumption: 105 mA idle; 130 mA continuous Rep Rate: 1 Hz - 500 Hz Laser Wave Length/Peak Power: 905 nm/1.3 watts Beam Divergence: 8 m Radian Optical Aperture: 12.5 mm Interface: I²C or PWM Dimensions: 20 x 48 x 40 mm
RPLIDAR A1 is a low cost 360-degree 2D laser scanner (LIDAR) solution. The system can perform 360-degree scan within 12-meter range. The produced 2D point cloud data can be used in mapping, localization and object/environment modeling.RPLIDAR A1’s scanning frequency reached 5.5 Hz when sampling 1450 points each round. And it can be configured up to 10 Hz maximum.RPLIDAR A1 is basically a laser triangulation measurement system. It can work excellent in all kinds of indoor environment and outdoor environment without direct sunlight exposure.Technical Specifications
Recommended applications
Vacuum robot, Home robot
Measuring Range
0.15 - 12 m
Sampling Frequency
8K
Rotational Speed
5.5 Hz
Angular Resolution
≤1°
Dimensions
96.8 x 70.3 x 55 mm
System Voltage
5 V
System Current
100 mA
Power Consumption
0.5 W
Output
UART Serial (3.3 voltage level)
Temperature Range
0℃-40℃
Angular Range
360°
Range Resolution
≤1% of the range (≤12 m)≤2% of the range (12～16 m)
Accuracy
1% of the range (≤3 m)2% of the range (3-5 m)2.5% of the range (5-25 m)
DownloadsDatasheet
This Crowtail series 4G module is a high-performance LTE Cat1 wireless module. It uses the SIM A7670E communication module from Simcom and communicates through a UART interface, which enables 4G data transmission and voice communication. The module supports multiple LTE bands, including B1/B3/B5/B7/B8/B20, as well as WCDMA and GSM networks. In addition, it supports various protocols such as TCP/IP, FTP, HTTP, and multiple satellite navigation systems such as GPS, GLONASS, and BDS. The module comes with a charging interface and can be powered by a 3.7 V lithium battery or a 5 V USB-C interface. It also has a 3.5 mm headphone jack, and by connecting a headphone with a microphone, it can be used for making and receiving phone calls. Its compact size makes it easy to integrate into various IoT devices and meet various application requirements. Furthermore, its low power consumption and reliable performance are also the reasons why it is widely used in IoT, smart home, automotive, and industrial control fields. Features Integrate the A7670E communication module, enabling 4G data transmission and voice communication with low power consumption and high reliability Supports multiple LTE bands, including B1/B3/B5/B7/B8/B20, as well as WCDMA and GSM networks Supports various protocols such as TCP/IP, FTP, HTTP, and multiple satellite navigation systems such as GPS, GLONASS, and BDS Comes with a charging interface and a headphone jack, which can be used for making and receiving phone calls by connecting a headphone with a microphone Small but powerful, compact size makes it easy to integrate into various IoT devices. Specifications Main Chip: SIM A7670E LTE-FDD: B1/B3/B5/B7/B8/B20 GSM: 900/1800 MHz GSM/GPRS power class EGSM900: 4 (33 dBm ±2 dB) DCS1800: 1 (30 dBm ±2 dB) EDGE power class: EGSM900: E2 (27 dBm ±3 dB) DCS1800 : E1 (26 dBm +3 dB/-4 dB) LTE power class: 3 (23 dBm ±7 dB) Supply Voltage: 4 V ~ 4.2 V Power: 3.8 V LTE(Mbps): 10 (DL)/5 (UL) GPRS/EDGE(Kbps): 236.8 (DL)/236.8 (UL) Protocol: TCP/IP/IPV4/IPV6/Multi-PDP/FTP/FTPS /HTTP/HTTPS/DNS Communication interface: USB / UART Firmware Upgrade: USB/FOTA Support phonebook types: SM/FD/ON/AP/SDN Interfaces: 1x Power button, 1x BAT, 1x UART, 1x USB-C, 1x SIM Card slot Dimensions: 35 x 50 mm Included 1x Crowtail-4G SIM-A7670E 1x 4G GSM NB-IoT Antenna 1x GPS ceramic antenna
Downloads Wiki A7670 AT Command Manual A7670 Datasheet Source Code
Arduino, MicroPython, and CircuitPython-compatible compact development board powered by Raspberry Pi RP2040RP2040-0.42LCD is a high-performance development board with integrated 0.42' LCD (70x40 resolution) with flexible digital interfaces.It incorporates Raspberry Pi's RP2040 microcontroller chip. The RP2040 features a dual-core Arm Cortex-M0+ processor clocked at 133 MHz with 264 KB internal SRAM and 2 MB flash storage.Specifications
SoC
Raspberry Pi RP2040 dual-core Cortex-M0+ microcontroller at up to 125 MHz, with 264 KB SRAM
Storage
2 MB SPI flash
Display
0.42-inch OLED
USB
1x USB Type-C port for power and programming
Expansion
– Qwiic I²C connector– 7-pin and 8-pin headers with up to 11x GPIOs, 2x SPI, 2x I²C, 4x ADC, 1x UART, 5 V, 3.3 V, VBAT, GND
Misc
– Reset and Boot buttons– RGB LED, power LED
Power supply
– 5 V via USB-C port or Vin– VBAT pin for battery input– 3.3 V regulator with 500 mA peak output
Dimensions
23.5 x 18 mm
Weight
2.5 g
DownloadsGitHub
A low-power, open source, 2.7-inch IoT display powered by an ESP32-S2 module and featuring SHARP's Memory-in-Pixel (MiP) screen technology The Newt is a battery-powered, always-on, wall-mountable display that can go online to retrieve weather, calendars, sports scores, to-do lists, quotes…really anything on the Internet! It is powered by an ESP32-S2 microcontroller that you can program with Arduino, CircuitPython, MicroPython, or ESP-IDF. It's perfect for makers: Sharp’s Memory-in-Pixel (MiP) technology avoids the slow refresh times associated with E-Ink displays A real-time clock (RTC) was added to support timers and alarms The Newt was designed with battery operation in mind; every component on the board was chosen for its ability to operate at low power. Newt was designed to operate 'untethered,' which means it can be mounted in places where a power cord would be inconvenient, for example a wall, refrigerator, mirror, or dry-erase board. With the optional stand, desks, shelves, and nightstands are also good options. Newt is open source, and all design files and libraries are available for review, use, and modification. However, doing that is not required. Each Newt is delivered with working code with the following features: Current weather details Hourly and daily weather forecast Alarm Timer Inspirational quotes Air-quality forecast Habit calendar Pomodoro timer Oblique Strategy cards Only following the Wi-Fi provisioning instructions is needed to get started. No app downloads are required. Specifications Display Sharp Memory LCD Screen Size 2.7 inch Resolution 240 x 400 Deep Sleep Current 30 uA Refresh Rate < 0.001 s Periodic Screen Refresh Required No Input Buttons 10 capacitive pads, 1 push button RTC included Yes Speaker included Yes Power Input USB Type-C Battery included No Programming Languages Arduino, CircuitPython, ESP IDF, MicroPython Dimensions 91 x 61 x 9 mm Microcontroller Espressif ESP32-S2-WROVER Module with 4 MB flash and 2 MB PSRAM Wi-Fi capable Supports Arduino, MicroPython, CircuitPython, and ESP-IDF Deep sleep current as low as 25 μA Display 2.7-inch, 240 x 400 pixel MiP LCD Capable of delivering high-contrast, high-resolution, low-latency content with ultra-low power consumption Reflective mode leverages ambient light to eliminate the need for a backlight Time Keeping, Timers, and Alarms Micro Crystal RV-3028-C7 RTC Optimized for extreme low-power consumption (45 μA) Able to simultaneously manage a periodic timer, a countdown timer, and an alarm Hardware interrupt for timers and alarms 43 bytes of non-volatile user memory, 2 bytes of user RAM Separate UNIX time counter Buzzer Speaker/buzzer with mini class-D amplifier on DAC output A0 can play tones or lo-fi audio clips User Input Power switch Two programmable tactile buttons for Reset and Boot 10 capacitive touchpads Power Newt is designed to operate for one to two months between charges using a 500 mAH LiPo battery. The exact run time varies. (Heavy Wi-Fi use, in particular, will reduce battery charge more quickly.) USB Type-C connector for programming, power, and charging Low-quiescence voltage regulator (TOREX XC6220) that can output 1 A of current and operate as low as 8 μA. JST connector for a Lithium-Ion battery Battery-charging circuity (MCP73831) Low-battery indicator (1 μA quiescence current) Software Newt hardware is compatible with open-source Arduino libraries for ESP32-S2, Adafruit GFX (fonts), Adafruit Sharp Memory Display (display writing), and RTC RV-3028-C7 (RTC) Arduino libraries and sample programs are under development and will be available in our GitHub repository before launch CircuitPython libraries and registration are on the roadmap, with the development of a CircuitPython library for the RV-3028 real-time clock as a key dependency Included Phambili Newt – Fully assembled with pre-loaded firmware Laser-cut desktop stand Mini-magnet feet Required screws Support & Documentation Full instructions for use GitHub: Arduino Library and Codebase GitHub: Board schematics
Videos of prototypes or demos (build tracked on Hackaday)
Specifications ARM Cortex-M7 at 600 MHz 2 USB ports, both 480 MBit/sec 2048K Flash (64K reserved for recovery & EEPROM emulation) 1024K RAM (512K is tightly coupled) 2 I2S Digital Audio 3 CAN Bus (1 with CAN FD) 1 S/PDIF Digital Audio 3 SPI, all with 16 word FIFO 1 SDIO (4 bit) native SD 3 I2C, all with 4 byte FIFO 7 Serial, all with 4 byte FIFO 32 general-purpose DMA channels 31 PWM pins 40 digital pins, all interrupt capable 14 analogue pins, 2 ADCs on chip Random Number Generator Cryptographic Acceleration Pixel Processing Pipeline RTC for date/time Peripheral cross triggering Programmable FlexIO Power On/Off management USB Host Teensy 4.1's USB Host port allows you to connect USB devices, like keyboards and MIDI musical instruments. A 5 pin header and a USB Host cable are needed to be able to plug in a USB device. You can also use one of these cables to connect to the USB pins. Memory The bottom side of Teensy 4.1 has locations to solder 2 memory chips. The smaller area is meant for a PSRAM SOIC-8 chip. The larger location is intended for QSPI flash memory. Power Consumption & Management When running at 600 MHz, the Teensy 4.1 consumes approximately 100mA current and provides support for dynamic clock scaling. Unlike traditional microcontrollers, where changing the clock speed causes wrong baud rates, and other issues, Teensy 4.1 hardware and Teensyduino's software support for Arduino timing functions are designed to allow dynamically speed changes. Serial baud rates, audio streaming sample rates, and Arduino functions like delay() and millis(), and Teensyduino's extensions like IntervalTimer and elapsedMillis, continue to work correctly while the CPU changes speed. Teensy 4.1 also provides a power shut off feature. By connecting a pushbutton to the On/Off pin, the 3.3V power supply can be completely disabled by holding the button for five seconds and turned back on by a brief button press. If a coin cell is connected to VBAT, Teensy 4.1's RTC also continues to keep track of date & time while the power is off. Teensy 4.1 furthermore can also be overclocked, well beyond 600MHz! The ARM Cortex-M7 brings many powerful CPU features to an accurate real-time microcontroller platform. The Cortex-M7 is a dual-issue superscaler processor, meaning the M7 can execute two instructions per clock cycle, at 600MHz! Of course, running two simultaneously depends upon the compiler ordering instructions and registers. Initial benchmarks have shown C++ code compiled by Arduino tends to achieve two instructions about 40% to 50% of the time while performing numerically intensive work using integers and pointers. The Cortex-M7 is the first ARM microcontroller to use branch prediction. On M4, loops and other code which use branch, it can take three clock cycles. With M7, after a loop has executed a few times, the branch prediction removes that overhead, allowing the branch instruction to run in only a single clock cycle. Tightly Coupled Memory is a unique feature which allows Cortex-M7 fast single-cycle access to memory using a pair of 64 bit wide buses. The ITCM bus provides a 64-bit path to fetch instructions. The DTCM bus is a pair of 32-bit paths, allowing M7 to perform up to two separate memory accesses in the same cycle. These extremely high-speed buses are different from M7's main AXI bus, which accesses other memory and peripherals. 512 of memory can be accessed as tightly coupled memory. Teensyduino automatically allocates your Arduino sketch code into ITCM, and all non-malloc memory use to the fast DTCM unless you add new keywords to override the optimized default. Memory not accessed on the tightly coupled buses is optimized for DMA access by peripherals. Because the bulk of M7's memory access is done on the two tightly coupled buses, powerful DMA-based peripherals have excellent access to the non-TCM memory for highly efficient I/O. Teensy 4.1's Cortex-M7 processor includes a floating-point unit (FPU) which supports both 64 bit 'double' and 32-bit 'float'. With M4's FPU on Teensy 3.5 & 3.6, and also Atmel SAMD51 chips, only 32-bit float is hardware accelerated. Any use of double, double functions like log(), sin(), cos() means slow software implemented math. Teensy 4.1 executes all of these with FPU hardware. For more information, check out the official Teensy 4.1 page here.
The Ynvisible Segment E-Paper Displays are thin & flexible, sunlight readable, very easy to operate, and that they are the most energy-efficient display technology on the market for most applications. Get started today! Evaluate the ultra-low-power, thin and flexible Segment E-Paper Displays. The kit contains display designs and includes a manual display driver as well as a display driver with I²C interface. Display parameters White Reflectance 40% Contrast Ratio (Yb/Yd) 1:3 Angle Dependency No, lambertian Thickness 300 µm Graphical layout Segments Segment dimensions 1-100 mm Response time 100-1000 ms Power parameters Driving voltage 1.5 V Driving method Direct drive Energy consumption 1 mJ/cm^2 Pulse energy 0.25 mJ/cm^2 Image retention w/o power 1-5 minutes Operating conditions -20°C - +60°C Activations/Cycles 1.000.000 Included
Ynvisible Segment Displays (Segmented e-paper displays with different layouts, shapes, and symbols, suitable for testing and evaluation.) 3 single-digit display 1 double-digit display 5 single-segment/icon displays 4 progress bars (7-segment and 3-segment)
Manual Display Clicker (Manual display controller for ON/OFF operations)
Display Driver and Software Library (Dedicated display driver with I²C communication interface. Compatible with Arduino and other easy-to-use development boards.)
Flexible Display Adapter (For convenient connection of the flexible displays on a plastic substrate to rigid electronics (such as development boards), using a FFC/FPC connector.) Downloads Datasheet Guide & Instructions
SMA Straight Plug to SMA Straight Plug, 76.2 mm Specifications Frequency range 0 to 18GHz VSWR (≤1.35) Insertion loss ≤0,22 db Body Brass Nickel Centre contact Brass Gold Insulator PTFE
Here you will find all kinds of parts, components and accessories you will need in various projects, starting from simple wires, sensors and displays to already pre-assembled modules and kits.
