Quantity   Component name
1 × Atmel ATMega88 Main microcontroller (TQFP-32)
1 × Microchip 24AA1025-I/P 1 Mbit serial (I²C) EEPROM (DIP-8)
1 × Hygrosens HYT-939 Digital humidity and temperature sensor, 14bit resolution (TO 39)
1 × Maxim DS1337 I²C serial real-time clock
1 × Generic 16x2 LCD (HD44780)