![Amazon.com: SparkFun Qwiic Pro Micro - USB-C (ATmega32U4) - Compatible with Arduino development board 5V/16MHz microcontroller AP2112 3.3V Voltage Regulator Castellated PTH pin pads Reset button Maximum 6V input : Electronics Amazon.com: SparkFun Qwiic Pro Micro - USB-C (ATmega32U4) - Compatible with Arduino development board 5V/16MHz microcontroller AP2112 3.3V Voltage Regulator Castellated PTH pin pads Reset button Maximum 6V input : Electronics](https://m.media-amazon.com/images/I/61tOzu1GSJL.jpg)
Amazon.com: SparkFun Qwiic Pro Micro - USB-C (ATmega32U4) - Compatible with Arduino development board 5V/16MHz microcontroller AP2112 3.3V Voltage Regulator Castellated PTH pin pads Reset button Maximum 6V input : Electronics
![Amazon.com: Teyleten Robot Pro Micro Atmega32U4 5V 16MHz Module Board Micro USB Pro Micro Development Board Microcontroller 3pcs : Electronics Amazon.com: Teyleten Robot Pro Micro Atmega32U4 5V 16MHz Module Board Micro USB Pro Micro Development Board Microcontroller 3pcs : Electronics](https://m.media-amazon.com/images/I/612SGVXtVTL._AC_UF894,1000_QL80_.jpg)
Amazon.com: Teyleten Robot Pro Micro Atmega32U4 5V 16MHz Module Board Micro USB Pro Micro Development Board Microcontroller 3pcs : Electronics
![Amazon.com: AITRIP 3pcs for Arduino Mini Nano V3.0 ATmega328P 5V 16M Micro Controller Board Module with 3pcs USB Cable Compatible with Arduino IDE : Electronics Amazon.com: AITRIP 3pcs for Arduino Mini Nano V3.0 ATmega328P 5V 16M Micro Controller Board Module with 3pcs USB Cable Compatible with Arduino IDE : Electronics](https://m.media-amazon.com/images/I/71DsuPAIArL._AC_UF894,1000_QL80_.jpg)
Amazon.com: AITRIP 3pcs for Arduino Mini Nano V3.0 ATmega328P 5V 16M Micro Controller Board Module with 3pcs USB Cable Compatible with Arduino IDE : Electronics
![Amazon.com: Seeed Studio XIAO SAMD21 (Pre-Soldered) The Smallest Arduino Microcontroller Based on SAMD21 with Rich Interfaces, 100% Arduino IDE Compatible, desiged for Projects Need Arduino Micro, 1pc. : Electronics Amazon.com: Seeed Studio XIAO SAMD21 (Pre-Soldered) The Smallest Arduino Microcontroller Based on SAMD21 with Rich Interfaces, 100% Arduino IDE Compatible, desiged for Projects Need Arduino Micro, 1pc. : Electronics](https://m.media-amazon.com/images/I/61K3hPTvfGL._AC_UF894,1000_QL80_.jpg)
Amazon.com: Seeed Studio XIAO SAMD21 (Pre-Soldered) The Smallest Arduino Microcontroller Based on SAMD21 with Rich Interfaces, 100% Arduino IDE Compatible, desiged for Projects Need Arduino Micro, 1pc. : Electronics
![Amazon.com: AITRIP 3PCS Type-C USB ESP32 Development Board 2.4GHz WiFi Dual Cores Microcontroller Integrated with Antenna RF Low Noise Amplifiers Filters for Arduino : Electronics Amazon.com: AITRIP 3PCS Type-C USB ESP32 Development Board 2.4GHz WiFi Dual Cores Microcontroller Integrated with Antenna RF Low Noise Amplifiers Filters for Arduino : Electronics](https://m.media-amazon.com/images/I/71nQjfuf-vL._AC_UF894,1000_QL80_.jpg)
Amazon.com: AITRIP 3PCS Type-C USB ESP32 Development Board 2.4GHz WiFi Dual Cores Microcontroller Integrated with Antenna RF Low Noise Amplifiers Filters for Arduino : Electronics
![Amazon.com: HiLetgo 3pcs Pro Micro Atmega32U4 5V 16MHz Bootloadered IDE Micro USB Pro Micro Development Board Microcontroller Compatible to Arduino Pro Micro Serial Connection with Pin Header : Electronics Amazon.com: HiLetgo 3pcs Pro Micro Atmega32U4 5V 16MHz Bootloadered IDE Micro USB Pro Micro Development Board Microcontroller Compatible to Arduino Pro Micro Serial Connection with Pin Header : Electronics](https://m.media-amazon.com/images/I/71e9+R+zjkL._AC_UF894,1000_QL80_.jpg)
Amazon.com: HiLetgo 3pcs Pro Micro Atmega32U4 5V 16MHz Bootloadered IDE Micro USB Pro Micro Development Board Microcontroller Compatible to Arduino Pro Micro Serial Connection with Pin Header : Electronics
![Amazon.com: Seeed Studio XIAO RP2040 Microcontroller, with Dual-Core ARM Cortex M0+ Processor, Supports Arduino, MicroPython and CircuitPython with Rich Interfaces. : Electronics Amazon.com: Seeed Studio XIAO RP2040 Microcontroller, with Dual-Core ARM Cortex M0+ Processor, Supports Arduino, MicroPython and CircuitPython with Rich Interfaces. : Electronics](https://images-na.ssl-images-amazon.com/images/I/51qxqFiizEL._AC_UL210_SR210,210_.jpg)
Amazon.com: Seeed Studio XIAO RP2040 Microcontroller, with Dual-Core ARM Cortex M0+ Processor, Supports Arduino, MicroPython and CircuitPython with Rich Interfaces. : Electronics
![Amazon.com: AITRIP 5Pcs Digispark Attiny85 Micro Miniature Microcontroller USB Development Board Module Compatible with Arduino IDE 1.0+ (OSX/Win/Linux) : Electronics Amazon.com: AITRIP 5Pcs Digispark Attiny85 Micro Miniature Microcontroller USB Development Board Module Compatible with Arduino IDE 1.0+ (OSX/Win/Linux) : Electronics](https://m.media-amazon.com/images/I/61S+945wYAL._AC_UF894,1000_QL80_.jpg)
Amazon.com: AITRIP 5Pcs Digispark Attiny85 Micro Miniature Microcontroller USB Development Board Module Compatible with Arduino IDE 1.0+ (OSX/Win/Linux) : Electronics
![Amazon.com: ACEIRMC Pro Micro for Atmega32U4 5V 16MHz Bootloadered IDE Micro USB Pro Micro Development Board Microcontroller Compatible for Pro Micro Serial Connection with arduino Pin Header (3pcs) : Electronics Amazon.com: ACEIRMC Pro Micro for Atmega32U4 5V 16MHz Bootloadered IDE Micro USB Pro Micro Development Board Microcontroller Compatible for Pro Micro Serial Connection with arduino Pin Header (3pcs) : Electronics](https://m.media-amazon.com/images/I/61kzKGo6+2L._AC_UF894,1000_QL80_.jpg)
Amazon.com: ACEIRMC Pro Micro for Atmega32U4 5V 16MHz Bootloadered IDE Micro USB Pro Micro Development Board Microcontroller Compatible for Pro Micro Serial Connection with arduino Pin Header (3pcs) : Electronics
![Amazon.com: Seeed Studio XIAO nRF52840 Sense - Supports Arduino/CircuitPython - Bluetooth5.0 NFC with Onboard Antenna, Microcontroller with 6-axis IMU and PDM Microphone for Tiny Machine Learning. : Electronics Amazon.com: Seeed Studio XIAO nRF52840 Sense - Supports Arduino/CircuitPython - Bluetooth5.0 NFC with Onboard Antenna, Microcontroller with 6-axis IMU and PDM Microphone for Tiny Machine Learning. : Electronics](https://m.media-amazon.com/images/I/512hsSKxBRL._AC_UF894,1000_QL80_.jpg)
Amazon.com: Seeed Studio XIAO nRF52840 Sense - Supports Arduino/CircuitPython - Bluetooth5.0 NFC with Onboard Antenna, Microcontroller with 6-axis IMU and PDM Microphone for Tiny Machine Learning. : Electronics
![Arduino for Ham Radio: A Radio Amateur's Guide to Open Source Electronics and Microcontroller Projects: ARRL Inc., Glen Popiel KW5GP: 9781625950161: Amazon.com: Books Arduino for Ham Radio: A Radio Amateur's Guide to Open Source Electronics and Microcontroller Projects: ARRL Inc., Glen Popiel KW5GP: 9781625950161: Amazon.com: Books](https://m.media-amazon.com/images/I/91g6PiEZ-5L._AC_UF1000,1000_QL80_.jpg)
Arduino for Ham Radio: A Radio Amateur's Guide to Open Source Electronics and Microcontroller Projects: ARRL Inc., Glen Popiel KW5GP: 9781625950161: Amazon.com: Books
![Amazon.com: KEYESTUDIO Leonardo R3 Microcontroller Development Board with USB Cable Kit for Arduino Project : Electronics Amazon.com: KEYESTUDIO Leonardo R3 Microcontroller Development Board with USB Cable Kit for Arduino Project : Electronics](https://m.media-amazon.com/images/I/61rc9Fii1AL._AC_UF894,1000_QL80_.jpg)
Amazon.com: KEYESTUDIO Leonardo R3 Microcontroller Development Board with USB Cable Kit for Arduino Project : Electronics
![Amazon.com: Miuzei Starter Kit Compatible with Arduino Projects with Microcontroller, LCD1602 Module, Breadboard, Power Supply, Servo, Sensors, Jumper Wires, LEDs, Detailed Tutorial MA13 : Electronics Amazon.com: Miuzei Starter Kit Compatible with Arduino Projects with Microcontroller, LCD1602 Module, Breadboard, Power Supply, Servo, Sensors, Jumper Wires, LEDs, Detailed Tutorial MA13 : Electronics](https://m.media-amazon.com/images/I/91ekeyC42HL.jpg)
Amazon.com: Miuzei Starter Kit Compatible with Arduino Projects with Microcontroller, LCD1602 Module, Breadboard, Power Supply, Servo, Sensors, Jumper Wires, LEDs, Detailed Tutorial MA13 : Electronics
![Amazon.com: 2Pack GPS Module,Navigation Satellite Positioning NEO-6M,Arduino GPS, Drone Microcontroller, GPS Receiver Compatible with 51 Microcontroller STM32 Arduino UNO R3 with Antenna High Sensitivity : Electronics Amazon.com: 2Pack GPS Module,Navigation Satellite Positioning NEO-6M,Arduino GPS, Drone Microcontroller, GPS Receiver Compatible with 51 Microcontroller STM32 Arduino UNO R3 with Antenna High Sensitivity : Electronics](https://m.media-amazon.com/images/I/71E596lvn7L.jpg)