Quantity   Component name
1 × Arduino UNO
1 × Graphical LCD 128x64 Inverse ST7565 LM6059 Compatible from https://www.adafruit.com/products/438
2 × Rotary Encoder w/button RGB Illuminated https://www.coolcomponents.co.uk/rotary-encoder-illuminated-rgb.html
2 × ATTiny 25/45/85 Microprocessors, Microcontrollers, DSPs / ARM, RISC-Based Microcontrollers
1 × Pulse Sensor https://www.coolcomponents.co.uk/pulse-sensor.html