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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This CAN Module is based on the CAN bus controller MCP2515 and CAN transceiver TJA1050. With this module, you will easy to control any CAN Bus device by SPI interface with your MCU, such as Arduino Uno and so on. Features Support CAN V2.0B Communication rate up to 1 MB/s Working Voltage: 5 V Working Current: 5 mA Interface: SPI Downloads MCP2515 Datasheet TJA1050 Datasheet

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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

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This DIY kit (HU-017A) is a wireless FM radio receiver with a 4-digit 7-segment display. It operates within the global FM receiving frequency band of 87.0-108.0 MHz, making it suitable for use in any country or region. The kit offers two power supply modes, allowing you to use it both at home and outdoors. This DIY electronic product will help you understand circuits and improve your soldering skills. Features 87.0-108.0 MHz FM Radio: Built-in RDA5807 FM data processor with a standard FM receiving frequency band. The FM frequency can be adjusted using the F+ and F- buttons. Adjustable Volume: Two volume adjustment methods – button and potentiometer. There are 15 volume levels. Active & Passive Audio Output: The kit has a built-in 0.5 W power amplifier to drive 8 Ω speakers directly. It also outputs audio signals to headsets or loudspeakers with AUX interfaces, allowing personal listening and sharing of FM audio. Configured with a 25 cm dedicated FM antenna and a (red) 4-digit 7-segment display for real-time display of FM radio frequency. The transparent acrylic shell protects the internal circuit board. It supports dual power supply methods – 5 V USB and 2x 1.5 V (AA) batteries. DIY Hand Soldering: The kit comes with various components that need to be installed manually. It helps exercise and improve soldering skills, making it suitable for electronics hobbyists, beginners, and educational purposes. Specifications Operating voltage DC 3 V/5 V Output impedance 8 Ω Output power 0.5 W Output channel Mono Receiver frequency 87.0 MHz~108.0 MHz Frequency accuracy 0.1 MHz Operating temperature −40°C to +85°C Operating humidity 5% to 95% RH Dimensions 107 x 70 x 23 mm IMPORTANT: Remove the batteries when powering the radio over to USB. Included 1x PCB 1x RDA5807M FM Receiver 1x STC15W404AS MCU 1x IC Socket 1x 74HC595D Register 1x TDA2822M Amplifier 1x IC Socket 1x AMS1117-3.3 V Voltage Converter 18x Metal Film Resistor 1x Potentiometer 4x Ceramic Capacitor 5x Electrolytic Capacitor 4x S8550 Transistor 1x Red LED 1x 4-digit 7-segment Display 1x Toggle Switch 1x SMD Micro USB Socket 1x Radio Antenna 1x AUX Audio Socket 4x Black Button 4x Button Cap 1x 0.5 W/8 Ω Speaker 1x Red/Black Wire 2x Double-sided adhesive 1x AA Battery Box 1x USB cable 6x Acrylic Board 4x Nylon Column Screw 4x M3 Screw 4x M3 Nut 4x M2x22 mm Screw 1x M2x6 mm Screw 5x M2 Nut

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With these jumper wires (length: 20 cm) you can connect a Raspberry Pi or an Arduino with breadboards. Each cable consists of 40 individual wires/pins which can also be separated. Included 1x 40-pins female to female 1x 40-pins male to male 1x 40-pins male to female

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Raspberry Pi-based Eye Catcher A standard sand clock just shows how time passes. In contrast, this Raspberry Pi Pico-controlled sand clock shows the exact time by “engraving” the four digits for hour and minute into the layer of sand. After an adjustable time the sand is flattened out by two vibration motors and everything begins all over again. At the heart of the sand clock are two servo motors driving a writing pen through a pantograph mechanism. A third servo motor lifts the pen up and down. The sand container is equipped with two vibration motors to flatten the sand. The electronic part of the sand clock consists of a Raspberry Pi Pico and an RTC/driver board with a real-time clock, plus driver circuits for the servo motors. A detailed construction manual is available for downloading. Features Dimensions: 135 x 110 x 80 mm Build time: approx. 1.5 to 2 hours Included 3x Precut acrylic sheets with all mechanical parts 3x Mini servo motors 2x Vibration motors 1x Raspberry Pi Pico 1x RTC/driver board with assembled parts Nuts, bolts, spacers, and wires for the assembly Fine-grained white sand

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Features Steel enclosure: High quality steel with cool sand-texture finishing Tiny LCD screen: It can display the IP address, host name, uptime, and can also be used to display other information. PiKVM OS includes a set of libraries that allows you to display almost anything using Python. Fan for active cooling: It will protect your device from overheating. PiKVM is able to control the fan speed using PWM, so it will not run at maximum speed all the time. Plastic housing for the LCD screen: This tiny piece of plastic is responsible for the robust support of the LCD screen inside the case. Injection molding eas used for making that display holder. Assembly hardware: A set of screws and nuts to assemble the case and install the fan.

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The Elektor Audio DSP FX Processor combines an ESP32 microcontroller and an ADAU1701 Audio DSP from Analog Devices. Besides a user-programmable DSP core, the ADAU1701 has high-quality analog-to-digital and digital-to-analog converters built-in and features an I²S port. This makes it suitable as a high-quality audio interface for the ESP32. Programs for the ESP32 can be created with Arduino, Platform IO, CMake or by using the Espressif IDF in another way. Programs for the ADAU7101 audio DSPs are created with the free visual programming tool SigmaStudio by dragging and dropping pre-defined algorithm blocks on a canvas. Applications Bluetooth/Wi-Fi audio sink (e.g. loudspeaker) & source Guitar effect pedal (stomp box) Music synthesizer Sound/function generator Programmable cross-over filter for loudspeakers Advanced audio effects processor (reverb, chorus, pitch shifting, etc.) Internet-connected audio device DSP experimentation platform Wireless MIDI MIDI to CV converter and many more... Specifications ADAU1701 28-/56-bit, 50-MIPS digital audio processor supporting sampling rates of up to 192 kHz ESP32 32-bit dual-core microcontroller with Wi-Fi 802.11b/g/n and Bluetooth 4.2 BR/EDR and BLE 2x 24-bit audio inputs (2 V RMS, 20 kΩ) 4x 24-bit audio outputs (0.9 V RMS, 600 Ω) 4x Control potentiometer MIDI in- and output I²C expansion port Multi-mode operation Power supply: 5 V DC USB or 7.5-12 V DC (barrel jack, center pin is GND) Current consumption (average): 200 mA Included 1x ESP32 Audio DSP FX Processor board (assembled) 1x ESP32-PICO-KIT 2x Jumpers 2x 18-pin headers (female) 4x 10 KB potentiometers Downloads Documentation GitHub

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Features RP2040 microcontroller with 2 MB Flash Dual-core cortex M0+ at up to 133 MHz 264 KB multi-bank high performance SRAM External Quad-SPI Flash with eXecute In Place (XIP) High performance full-crossbar bus fabric 30 multi-function General Purpose IO (4 can be used for ADC) 1.8-3.3 V IO Voltage (NOTE. Pico IO voltage is fixed at 3.3 V) 12-bit 500 ksps Analogue to Digital Converter (ADC) Various digital peripherals 2× UART, 2× I²C, 2× SPI, 16× PWM channels 1× Timer with 4 alarms, 1× Real Time Counter 2× Programmable IO (PIO) blocks, 8 state machines total Flexible, user-programmable high-speed IO Can emulate interfaces such as SD Card and VGA Includes W5100S Supports Hardwired Internet Protocols: TCP, UDP, WOL over UDP, ICMP, IGMPv1/v2, IPv4, ARP, PPPoE Supports 4 Independent Hardware SOCKETs simultaneously Internal 16 KB Memory for TX/ RX Buffers SPI Interface Micro-USB B port for power and data (and for reprogramming the Flash) 40 pin 21x51 'DIP' style 1mm thick PCB with 0.1' through-hole pins also with edge castellations 3-pin ARM Serial Wire Debug (SWD) port 10 / 100 Ethernet PHY embedded Supports Auto Negotiation Full / Half Duplex 10 / 100 Based Built-in RJ45 (RB1-125BAG1A) Built-in LDO (LM8805SF5-33V) Downloads RP2040 Datasheet W5100S Datasheet Schematic & Part list & Gerber File C/C++ Examples CircuitPython Examples

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Arduino Uno is an open-source microcontroller board based on the ATmega328P. It has 14 digital input/output pins (of which 6 can be used as PWM outputs), 6 analog inputs, a 16 MHz ceramic resonator (CSTCE16M0V53-R0), a USB connection, a power jack, an ICSP header and a reset button. It contains everything needed to support the microcontroller; simply connect it to a computer with a USB cable or power it with a AC-to-DC adapter or battery to get started. You can tinker with your Uno without worring too much about doing something wrong, worst case scenario you can replace the chip for a few dollars and start over again. 'Uno' means one in Italian and was chosen to mark the release of Arduino Software (IDE) 1.0. The Uno board and version 1.0 of Arduino Software (IDE) were the reference versions of Arduino, now evolved to newer releases. The Uno board is the first in a series of USB Arduino boards, and the reference model for the Arduino platform; for an extensive list of current, past or outdated boards see the Arduino index of boards. Specifications Microcontroller ATmega328P Operating Voltage 5 V Input Voltage (recommended) 7-12 V Input Voltage (limit) 6-20 V Digital I/O Pins 14 (of which 6 provide PWM output) PWM Digital I/O Pins 6 Analog Input Pins 6 DC Current per I/O Pin 20 mA DC Current for 3.3 V Pin 50 mA Flash Memory 32 KB (ATmega328P) of which 0.5 KB used by bootloader SRAM 2 KB (ATmega328P) EEPROM 1 KB (ATmega328P) Clock Speed 16 MHz LED_BUILTIN 13 Dimensions 68.6 x 53.4 mm Weight 25 g

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Arduino-compatible, ESP32-controlled, 2-wheeled Balancing Robot The Elektor Mini-Wheelie is an experimental autonomous self-balancing robot platform. Based on an ESP32-S3 microcontroller, the self-balancing robot is fully programmable using the Arduino environment and open-source libraries. Its wireless capabilities allow it to be controlled remotely over Wi-Fi, Bluetooth or ESP-NOW or to communicate with a user or even another robot. An ultrasonic transducer is available for detecting obstacles. Its color display can be used for displaying cute facial expressions or, for the more down-to-earth users, cryptic debug messages. The robot comes as a neat kit of parts that you must assemble yourself. Everything is included, even a screwdriver. Note: The Mini-Wheelie is an educational development platform intended for learning, experimentation, and robotics development. It is not classified as a toy for children, and its features, documentation, and intended audience reflect this purpose. The product is aimed at students, educators, and developers who wish to explore robotics, programming, and hardware integration in an educational setting. Specifications ESP32-S3 microcontroller with Wi-Fi and Bluetooth MPU6050 6-axis Inertial Measurement Unit (IMU) Two independently controlled 12 V electric motors with tachometer Ultrasonic transducer 2.9" TFT color display (320 x 240) MicroSD card slot Battery power monitor 3S rechargeable Li-Po battery (11.1 V/2200 mAh) Battery charger included Arduino-based open-source software Dimensions (W x L x H): 23 x 8 x 13 cm Included 1x ESP32-S3 Mainboard + MPU6050 module 1x LCD board (2.9 inch) 1x Ultrasonic sensor 1x Battery pack (2200 mAh) 1x Battery charger 1x Motor tyre kit 1x Case board 1x Acrylic board 1x Screwdriver 1x Protective strip 1x Flex cable B (8 cm) 1x Flex cable A (12 cm) 1x Flex cable C 4x Copper column A (25 mm) 4x Copper column B (55 mm) 4x Copper column C (5 mm) 2x Plastic nylon column 8x Screws A (10 mm) 24x Screws B (M3x5) 8x Nuts 24x Metal washers 2x Zip tie 1x MicroSD card (32 GB) Downloads Documentation

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The Uno R3 board is the perfect microcontroller for those who want to enter the programming world without any fuss. Its ATMega328 microcontroller provides you with enough power for your ideas and projects. The Uno board has a USB type B connector so that you can easily use it with programs – of course via the well-known programming environment Arduino IDE. You can connect it to the power source via the USB port or alternatively use its own power connection. Please note: The CH341 driver must be installed beforehand so that Uno board is recognized by the Arduino IDE. Microcontroller ATmega 328 Clock speed 16 MHz Operating voltage 5 V Input voltage 5-10 V Digital I/O Pins 14 with PWM 6 USB 1x SPI 1x I²C 1x ICSP 1x Flash Memory 32 KB EEPROM 1x

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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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This RC522 RFID Kit includes a 13.56 MHz RF reader module that uses an RC522 IC and two S50 RFID cards to help you learn and add the 13.56 MHz RF transition to your project. The MF RC522 is a highly integrated transmission module for contactless communication at 13.56 MHz. RC522 supports ISO 14443A/MIFARE mode. The module uses SPI to communicate with microcontrollers. The open-hardware community already has a lot of projects exploiting the RC522 – RFID Communication, using Arduino. Features Operating Current: 13-26 mA/DC 3.3 V Idle Current: 10-13 mA/DC 3.3 V Sleep Current: <80 uA Peak Current: <30 mA Operating Frequency: 13.56 MHz Supported card types: mifare1 S50, mifare1 S70 MIFARE Ultralight, Mifare Pro, MIFARE DESFire Environmental Operating Temperature: -20-80 degrees Celsius Environmental Storage Temperature: -40-85 degrees Celsius Relative humidity: relative humidity 5% -95% Reader Distance: ≥50 mm/1.95' (Mifare 1) Module Size: 40×60 mm/1.57*2.34' Module interfaces SPI Parameter Data transfer rate: maximum 10 Mbit/s Included 1x RFID-RC522 Module 1x Standard S50 Blank Card 1x S50 special-shaped card (as shown by the keyring shape) 1x Straight Pin 1x Curved Pin Downloads Arduino Library MFRC522 Datasheet MFRC522_ANT Mifare S50

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The Elektor ESP32 Energy Meter is a device designed for real-time energy monitoring and smart home integration. Powered by the ESP32-S3 microcontroller, it offers robust performance with modular and scalable features. The device uses a 220 V-to-12 V step-down transformer for voltage sampling, ensuring galvanic isolation and safety. Its compact PCB layout includes screw-type terminal blocks for secure connections, a Qwiic connector for additional sensors, and a programming header for direct ESP32-S3 configuration. The energy meter is compatible with single-phase and three-phase systems, making it adaptable for various applications. The energy meter is simple to set up and integrates with Home Assistant, offering real-time monitoring, historical analytics, and automation capabilities. It provides accurate measurements of voltage, current, and power, making it a valuable tool for energy management in homes and businesses. Features Comprehensive Energy Monitoring: Get detailed insights into your energy usage for smarter management and cost savings. Customizable Software: Tailor functionality to your needs by programming and integrating custom sensors. Smart Home Ready: Compatible with ESPHome, Home Assistant, and MQTT for full Smart Home integration. Safe & Flexible Design: Operates with a 220 V-to-12 V step-down transformer and features a pre-assembled SMD board. Quick Start: Includes one Current Transformer (CT) sensor and access to free setup resources. Specifications Microcontroller ESP32-S3-WROOM-1-N8R2 Energy Metering IC ATM90E32AS Status Indicators 4x LEDs for power consumption indication2x Programmable LEDs for custom status notifications User Input 2x Push buttons for user control Display Output I²C OLED display for real-time power consumption visualization Input Voltage 110/220 V AC (via step-down transformer) Input Power 12 V (via step-down transformer or DC input) Clamp Current Sensor YHDC SCT013-000 (100 A/50 mA) included Smart Home Integration ESPHome, Home Assistant, and MQTT for seamless connectivity Connectivity Header for programming, Qwiic for sensor expansion Applications Supports single-phase and three-phase energy monitoring systems Dimensions 79.5 x 79.5 mm Included 1x Partly assembled board (SMDs are pre-mounted) 2x Screw terminal block connerctors (not mounted) 1x YHDC SCT013-000 current transformer Required Power transformer not included Downloads Datasheet (ESP32-S3-WROOM-1) Datasheet (ATM90E32AS) Datasheet (SCT013-000) Frequently Asked Questions (FAQ) From Prototype to Finished Product What started as an innovative project to create a reliable and user-friendly energy meter using the ESP32-S3 microcontroller has evolved into a robust product. Initially developed as an open-source project, the ESP32 Energy Meter aimed to provide precise energy monitoring, smart home integration and more. Through meticulous hardware and firmware development, the energy meter now stands as a compact, versatile solution for energy management.

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Whistle And It Chirps Back At You! Although birds of all sorts are lovingly owned and watched by many people, sadly most of them have not yet learnt to communicate with us. This all-electronic bird takes a step in the right direction: when you whistle at it, it chirps back! Features Responds to Whistling Adjustable Bird Sounds (Tone and Length) Elektor Heritage Circuit Symbols Tried & Tested by Elektor Labs Educational & Geeky Project Through-Hole Parts Only Included Printed Circuit Board All Components Wooden Stand Bill of Materials Resistors R1,R2 = 2.2kΩ R3,R4,R13 = 47kΩ R5 = 4.7kΩ R6 = 3.3kΩ R7,R10,R11,R12,R17 = 100kΩ R8,R19,R23 = 1kΩ R9 = 1MΩ R14,R15 = 10kΩ R16,R18 = 470kΩ R20 = 68kΩ R21 = 10MΩ R22 = 2.7kΩ R24 = 22Ω P1,P2 = 1MΩ P3,P5 = 470kΩ P4 = 100kΩ Capacitors C1,C2,C12 = 100nF C3,C4 = 10nF C5 = 22μF, 16V C6,C7,C11 = 10μF, 16V C8 = 2.2μF, 100V C9 = 1μF, 50V C10 = 2.2nF C13 = 10nF Semiconductors D1,D3,D4,D5,D6,D7,D8 = 1N4148 D2 = 3V3 Zener diode T1,T2 = BC557B T3 = BC547B T4 = BC327-40 IC1 = TL084CN IC2 = 4093 Miscellaneous BT1 = wired battery clip for 6LR61/PP3 LS1 = miniature loudspeaker, 8Ω, 0.5W S1 = switch, slide, SPDT MIC1 = electret microphone PCB 230153-1 v1.1

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The Elektor Super Servo Tester can control servos and measure servo signals. It can test up to four servo channels at the same time. The Super Servo Tester comes as a kit. All the parts required to assemble the Super Servo Tester are included in the kit. Assembling the kit requires basic soldering skills. The microcontroller is already programmed. The Super Servo Tester features two operating modes: Control/Manual and Measure/Inputs. In Control/Manual mode the Super Servo Tester generates control signals on its outputs for up to four servos or for the flight controller or ESC. The signals are controlled by the four potentiometers. In Measure/Inputs the Super Servo Tester measures the servo signals connected to its inputs. These signals may come from for instance an ESC, a flight controller, or the receiver or another device. The signals are also routed to the outputs to control the servos or the flight controller or ESC. The results are shown on the display. Specifications Operating modes Control/Manual & Measure/Inputs Channels 3 Servo signal inputs 4 Servo signal outputs 4 Alarm Buzzer & LED Display 0.96' OLED (128 x 32 pixels) Input voltage on K5 7-12 VDC Input voltage on K1 5-7.5 VDC Input current 30 mA (9 VDC on K5, nothing connected to K1 and K2) Dimensions 113 x 66 x 25 mm Weight 60 g Included Resistors (0.25 W) R1, R3 1 kΩ, 5% R2, R4, R5, R6, R7, R9, R10 10 kΩ, 5% R8 22 Ω, 5% P1, P2, P3, P4 10 kΩ, lin/B, vertical potentiometer Capacitors C1 100 µF 16 V C2 10 µF 25 V C3, C4, C7 100 nF C5, C6 22 pF Semiconductors D1 1N5817 D2 LM385Z-2.5 D3 BZX79-C5V1 IC1 7805 IC2 ATmega328P-PU, programmed LED1 LED, 3 mm, red T1 2N7000 Miscellaneous BUZ1 Piezo buzzer with oscillator K1, K2 2-row, 12-way pinheader, 90° K5 Barrel jack K4 1-row, 4-way pin socket K3 2-row, 6-way boxed pinheader S1 Slide switch DPDT S2 Slide switch SPDT X1 Crystal, 16 MHz 28-way DIP socket for IC2 Elektor PCB OLED display, 0.96', 128 x 32 pixels, 4-pin I²C interface Links Elektor Magazine Elektor Labs

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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

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The Elektor Milliohmmeter Adapter uses the precision of a multimeter to measure very low resistance values. It is an adapter that converts a resistance into a voltage that can be measured with a standard multimeter. The Elektor Milliohmmeter Adapter can measure resistances below 1 mΩ using a 4-wire (Kelvin) method. It is useful for locating short circuits on printed circuit boards (PCB). The adapter features three measurement ranges – 1 mΩ, 10 mΩ, and 100 mΩ – selectable via a slide switch. It also includes onboard calibration resistors. The Elektor Milliohmmeter Adapter is powered by three 1.5 V AA batteries (not included). Specifications Measurement ranges 1 mΩ, 10 mΩ, 100 mΩ, 0.1% Power supply 3x 1.5 V AA batteries (not included) Dimensions 103 x 66 x 18 mm (compatible with Hammond 1593N-type enclosure, not included) Special feature On-board calibration resistors Downloads Documentation

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ILI9341 is a 262144-color single-chip SOC driver for a TFT liquid crystal display with resolution of 240x320 dots (RGB), comprising a 720-channel source driver, a 320-channel gate driver, 172800 bytes GRAM for graphic display data of 240x320 dots (RGB), and power supply circuit.ILI9341 supports parallel 8-/9-/16-/18-bit data bus MCU interface, 6-/16-/18-bit data bus RGB interface and 3-/4-line serial peripheral interface (SPI).The moving picture area can be specified in internal GRAM by window address function. The specified window area can be updated selectively, so that moving picture can be displayed simultaneously independent of still picture area.ILI9341 can operate with 1.65V ~ 3.3V I/O interface voltage and an incorporated voltage follower circuit to generate voltage levels for driving an LCD.ILI9341 supports full color, 8-color display mode and sleep mode for precise power control by software and these features make the ILI9341 an ideal LCD driver for medium or small size portable products such as digital cellular phones, smart phone, MP3 and PMP where long battery life is a major concern.Features Display resolution: 240 x 320 (RGB) Output: 720 source outputs | 320 gate outputs | Common electrode output (VCOM) a-TFT LCD driver with on-chip full display RAM: 172,800 bytes System Interface 8-bits, 9-bits, 16-bits, 18-bits interface with 8080-Ⅰ/8080- Ⅱ series MCU 6-bits, 16-bits, 18-bits RGB interface with graphic controller 3-line / 4-line serial interface Display mode: Full color mode (Idle mode OFF): 262K-color Reduced color mode (Idle mode ON): 8-color Power saving modes: Sleep mode Deep standby mode On chip functions: VCOM generator and adjustment Timing generator Oscillator DC/DC converter Line/frame inversion 1 preset Gamma curve with separate RGB Gamma correction Content Adaptive Brightness Control MTP (3 times): 8-bits for ID1, ID2, ID3 7-bits for VCOM adjustment Low-power consumption architecture Low operating power supplies: VDDI = 1.65V ~ 3.3V (logic) VCI = 2.5V ~ 3.3V (analog) LCD Voltage drive: Source/VCOM power supply voltage AVDD - GND = 4.5V ~ 5.5V VCL - GND = -2.0V ~ -3.0V Gate driver output voltage VGH - GND = 10.0V ~ 20.0V VGL - GND = -5.0V ~ -15.0V VGH - VGL 3 ≦ 2V VCOM driver output voltage VCOMH = 3.0V ~ (AVDD – 0.5)V VCOML = (VCL+0.5)V ~ 0V VCOMH - VCOML ≦ 6.0V Operate temperature range: -40℃ to 85℃

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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

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The ICL8038 signal generator delivers versatile waveforms, including sine, triangle, square, and forward/reverse sawtooth, making it suitable for a wide range of applications. Powered by the ICL8038 chip and high-speed operational amplifiers, it ensures exceptional precision and signal stability. With a frequency range of 5 Hz to 400 kHz, it supports applications from audio to radio frequencies. Its adjustable duty cycle, ranging from 2% to 95%, allows for precise waveform customization to meet various needs. The DIY kit is beginner-friendly, featuring through-hole components for easy assembly. It includes all necessary parts, an acrylic shell, and a detailed manual, providing everything required to build and use the signal generator efficiently. Specifications Frequency range 5 Hz~400 KHz (adjustable) Power supply voltage 12 V~15 V Duty cycle range 2~95% (adjustable) Low distortion sine wave 1% Low temperature drift 50 ppm/°C Output triangular wave linearity 0.1% DC bias range −7.5 V~7.5 V Output amplitude range 0.1 V~11 VPP (working voltage 12 V) Dimensions 89 x 60 x 35 mm Weight 81 g Included PCB incl. all necessary components Acrylic shell Manual

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Build Your Own Vintage Radio Broadcaster The Elektor AM Transmitter Kit allows streaming audio to vintage AM radio receivers. Based on a Raspberry Pi Pico microcontroller module, the AM Transmitter can transmit on 32 frequencies in the AM band, from 500 kHz up to 1.6 MHz in 32 steps of approx. 35 kHz. The frequency is selected with a potentiometer and shown on a 0.96" OLED display. A pushbutton allows toggles the transmitting mode between On and Off. The range of the transmitter depends on the antenna. The onboard antenna provides a range of a few centimeters, requiring the AM Transmitter to be placed close to or inside the radio. An external loop antenna (not included) can be connected to increase the range. The Elektor AM Transmitter Kit comes as a kit of parts that you must solder to the board yourself. Features The board is compatible with a Hammond 1593N enclosure (not included).A 5 VDC power supply with micro-USB connector (e.g., an old phone charger) is needed to power the kit (not included). Current consumption is 100 mA. The Arduino software (requiring Earle Philhower’s RP2040 Boards Package) for the Elektor AM Transmitter Kit plus more information is available at the Elektor Labs page of this project. Component List Resistors R1, R4 = 100 Ω R2, R3, R8 = 10 kΩ R5, R6, R9, R10, R11 = 1 kΩ R7 = optional (not included) P1 = potentiometer 100 kΩ, linear Capacitors C1 = 22 µF 16V C2, C4 = 10 nF C3 = 150 pF Miscellaneous K1 = 4×1 pin socket K2, K3 = 3.5 mm socket Raspberry Pi Pico pushbutton, angle mount 0.96" monochrome I²C OLED display PCB 150292-1

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The DIY Mini Digital Oscilloscope Kit (with shell) is an easy-to-build kit for a tiny digital oscilloscope. Besides the power switch, it has only one other control, a rotary encoder with a built-in pushbutton. The kit's microcontroller comes preprogrammed. The 0.96" OLED display has a resolution of 128 x 64 pixels. The oscilloscope features one channel that can measure signals up to 100 kHz. The maximum input voltage is 30 V, the minimum voltage is 0 V. The kit consists of through-hole components (THT) are surface-mount devices (SMD). Therefore, assembling the kit means soldering SMD parts, which requires some soldering experience. Specifications Vertical range: 0 to 30 V Horizontal range: 100 µs to 500 ms Trigger type: auto, normal and single Trigger edge: rising and falling Trigger level: 0 to 30 V Run/Stop mode Automatic frequency measurement Power: 5 V micro-USB 10 Hz, 5 V sinewave output 9 kHz, 0 to 4.8 V square wave output Display: 0.96-inch OLED screen Dimensions: 57 x 38 x 26 mm Downloads Documentation

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