Arduino Leonardo With Headers [A000057] - Atmega32u4 Microcontroller, 16Mhz, 20 Digital I/O Pins, 7 PWM, USB HID Support, Built-In USB Communication,

($8.62/Pc) ATMEGA168V-10AUR Microchip Technology MCU - 8-Bit AVR RISC - 16KB Flash - 2.5V/3.3V/5V - 32-Pin TQFP - Tape&Reel

Arduino Nano [A000005] - Compact Atmega328p Microcontroller With 22 Digital I/O Pins, 8 Analog Inputs, USB Connectivity, And Arduino IDE Compatibility

Waveshare Raspberry Pi Pico Microcontroller Board With RP2040 Chip, Dual-Core Arm Cortex M0+ Processor, 264KB SRAM, 2MB Flash, 26X GPIO, SPI, I2C,

Hibctr 6 - Piece Set Of RP2040 - Zero Boards: RP2040 Microcontroller - Based PICO Development Boards. Equipped With A Dual - Core 264KB Cortex M0+

($2.86/Pc) ATMEGA168-20MU Microchip Technology MCU - 8-Bit AVR RISC - 16KB Flash - 3.3V/5V - 32-Pin VQFN EP - Tray

Geekstory For ATMEL 51 AVR USB ISP ASP Microcontroller Programmer Downloader With Cable + 10Pin To 6Pin Adapter Board For Ender 3 Or Ender 3 Pro

($0.75/Pc) ATTINY814-SSN Microchip Technology MCU - 8-Bit AVR W/Hardware Multiplier - 20Mhz - 8KB Flash - 512 Byte SRAM - 64 Byte EEPROM - 14-Pin

1PC LC-01 51 AVR Programmer ISP USBASP Downloader

($5.70/Pc) ATMEGA644A-AU Microchip Technology MCU - 8-Bit AVR RISC - 64KB Flash - 2.5V/3.3V/5V - 44-Pin TQFP - Tray

AVR Microcontroller Development Board ATMEGA128 Development Learning Module

6Pcs Pro Micro For Atmega32u4 5V 16Mhz Bootloadered IDE Micro USB Pro Micro Development Board Microcontroller Compatible For Pro Micro Serial

4Pcs 4 Channel 5V Relay Module With Optocoupler For R3 MEGA 2560 1280 DSP ARM PIC AVR STM32 For Raspberry Pi

($0.90/Pc) ATTINY84A-SSF Microchip Technology MCU - 8-Bit AVR RISC - 8KB Flash - 512 Byte SRAM - 512 Byte EEPROM - 20Mhz - 2.5V/3.3V/5V - -40C To +

ELEGOO UNO R3 Board Atmega328p With USB Cable(Arduino-Compatible) For Arduino

Arduino Uno REV3 [A000066] - Atmega328p Microcontroller, 16Mhz, 14 Digital I/O Pins, 6 Analog Inputs, 32KB Flash, USB Connectivity, Compatible With

Hiletgo 3Pcs Atmega32u4 5V 16Mhz Bootloadered IDE Micro USB Development Board Microcontroller Compatible To Arduino Pro Micro Serial Connection With

Nano V3.0, Nano Board Atmega328p 5V 16m Micro-Controller Board Compatible With Arduino IDE (Nano X 3 With USB Cable)

Hiletgo 3Pcs Pro Micro Atmega32u4 5V/16Mhz Type-C Module With Pin Headers Compitable With Arduino

Risingsaplings 5Pcs ATMEGA32 ATMEGA32A-AU 44-TQFP 8-Bit 32KB 16MHZ Microcontroller Integrated Circuit Chip ATMEGA32A AVR

($2.98/Pc) ATMEGA168-20MQ Microchip Technology MCU 8-Bit Atmega AVR RISC 16KB Flash 3.3V/5V 32-Pin VQFN EP

FTVOGUE PIC16F877A Microcontroller Development Board Microchip Board With RS232 Interface,Development Kits And Boards

($3.60/Pc) ATMEGA324A-AU Microchip Technology MCU - 8-Bit AVR RISC - 32KB Flash - 2.5V/3.3V/5V - 44-Pin TQFP - Tray

($6.60/Pc) ATMEGA16L-8AU Microchip Technology MCU - 8-Bit AVR RISC - 16KB Flash - 3.3V/5V - 44-Pin TQFP - Tray

($2.61/Pc) ATTINY26-16PU Microchip Technology MCU - 8-Bit AVR RISC - 2KB Flash - 128 Byte SRAM - 128 Byte EEPROM - 16 Mhz - 5V - -40C To +85C - 20 Pin

($1.47/Pc) ATMEGA328PB-MN Microchip Technology MCU - 8-Bit AVR RISC - 32KB Flash - 2.5V/3.3V/5V - 32-Pin VQFN EP - Tray

LUIRSAY R3 Development Board, Atmega328p Chip, Compatible With Arduino IDE(With USB Cable)

($2.59/Pc) ATMEGA328-PU Microchip Technology MCU - 8-Bit AVR RISC - 32KB Flash - 2.5V/3.3V/5V - 28-Pin PDIP - Tube

($2.78/Pc) AVR128DB48-I/6LX Microchip Technology MCU - 8-Bit AVR RISC - 128KB Flash - 16KB SRAM - 24Mhz - -40C To +85C - 2.5V/3.3V/5V - 48-Pin VQFN -

Arduino Uno Rev3 SMD [A000073] Microcontroller Board - Atmega328p, 16Mhz, 32KB Flash, USB & PWM Support, Ideal For DIY Projects, STEM Learning,