Quantity   Component name
1 × RP 2040 (rpi pico) main MCU
1 × Arduino ProMini 3.3v 8MHz keyboard decoder
1 × CASIO PB700 case
1 × SSD1322 spi oled (256x64) 2.8inch the main screen
1 × SSD1306 i2c oled (128x64) 0.96inch 2nd display - status
1 × 5v to 3.3v adapter to not pull 3.3v from main MCU
1 × 4.8v 2400mAh NI-MH accus