Hardware Components
The IoT device is made of 3 principal microcontrolers:
- ATMEGA 328P for main processing
- HM 10 BLE for Bluetooth connectivity
- SIM800 for GSM communication
"Mother Board" based on DVID with an ATMEGA 328P controller:
- 8 bits architecture
- Can manage 1 hardware UART
- Several GPIOs
HM10 Bluetooth 4.0 board
- Compatible with Bluetooth Low Energy
- Controlled with AT commands over UART
- Emulates an UART port over bluetooth
2G GSM/GPRS board with SIM800
- Mounted on a compact dev board
- Controlled with AT commands over UART
- Lots of functionnalities