1 x Atmel ATTINY461-20MU, 8bit AVR Microcontroller 20MHz, 256B, 4kB Flash 32-Pin

2x Atmel ATMEGA328P-PU 8bit AVR Microcontroller 20MHz 32 kB Flash, Arduino UNO

ATTINY44V-10SSU AVR Microcontroller EEPROM: 256B Static RAM: 256B Flash: 4kB SO1

ATTINY44A-MU AVR MCU Microcontroller EEPROM: 256B Static RAM: 256B Flash: 4kB

ATTINY45V-10PU AVR Microcontroller EEPROM: 256B Static RAM: 256B Flash: 4kB DIP8

1 x Texas Instruments MSC1210Y4PAGT, 8bit 8051 Microcontroller 33MHz 16kB Flash

ATTINY45-20PU AVR Microcontroller EEPROM: 256B Static RAM: 256B Flash: 4kB DIP8

ATTINY45-20SU AVR Microcontroller EEPROM: 256B Static RAM: 256B Flash: 4kB SO8-W