Quantity   Component name
1 × TinyPICO tiny ESP32 Designed for low power operation
2 × MAX6817EUT+T Logic ICs / Other Logic ICs
2 × 3D Printed Cases Cases for tiny pico controllers and batteries.
2 × 800mAh Lipo Bateries. Batteries for each wirst controller.
5 × DRV2603RUNR Haptic Driver with Auto Resonance Tracking for LRA and Optimized Drive for ERM
2 × 0.1nF 0603 AVX X7R filering capacitors
5 × WALSIN - 0603B104K160CT 0603 capacitor
4 × Micro Push button Switch Momentary Tactile switches
5 × Coin linear vibration motors Coin linear vibration motors
1 × 20 pin x 12 inch IDC Cable. or other 30 gauge cable to connect the buttons and linear motors to the wristh band
1 × Raspbery Pi 4 IoT Gateway.