Quantity   Component name
1 × nRF52832 (on PCB) popular Bluetooth SoC
1 × MCP3911 (on PCB) Generic ADC
1 × AD8606 (onPCB) Precision operational amplifier
1 × BMI160 (on PCB) IMU (accelerometer/gyroscope)
1 × RGB led (on PCB) For blinking in all colors of rainbow!
1 × micro USB type B SMD connector For charging
1 × 220 mAh 501245 battery Now thicker, but sleeker
2 × ECG 3.9mm snap connector
2 × Disposable gel electrodes Any standard will do (those compatible with 3.9-4mm snap connectors). We use 45mm ones.
1 × 3D printed case
2 × 1.6*6mm screws For the enclosure