Quantity   Component name
1 × 4.3inch WaveShare EPaper screen module
1 × Teensy 3.6
1 × NEO-7M GPS
1 × SIM800L module
1 × Polulu 3.3 Step-up module
1 × Polulu 5.0 Step-up module
2 × 1.5F 5.5V SuperCapacitor
1 × 3XAA block battery
1 × 5 IO WaveShare keyboard module