G2Labs Grzegorz Grzęda

Wristband with BLE connectivity and SOS capability

I wrote the BLE connectivity module for communicating the wristband with custom client Android App. Also I wrote firmware for a dedicated flashing station for production environment.

Main features:

• 5 consecutive BLE connections
• custom command and status BLE GATT services and characteristics
• nRF51 ARM CortexM chip