Quantity   Component name
1 × nRF52820 MCU
1 × GDEW027W3 epaper display
1 × W25Q64J QSPI Flash
1 × MCP73830LT Power Management ICs / Power Supply Support
1 × RV-3028-C7 RTC
1 × LTC2941 Power Management ICs / Battery Management ICs
1 × NJU7250F33 Power Management ICs / Linear Voltage Regulators and LDOs
1 × BME680 environment sensor
1 × LP103053 battery 90mAh
1 × AP9101 BMS