NRF51-RELAYController-EVB EVB code for RELAY controller based on NRF51 Prerequisites Nordic Semiconductor nRF5 SDK v11.0.0 Nordic Semiconductor nRF5x Command Line Tools Features Specification System Diagram Schematic Pin Define PIN Name Pin Function Description PCB_Layout Equipment Demo video Android Sample code [https://github.com/MaBaoGW/RELAY-Android-Sample]