NRF 51822 BLE module sensor with Arduino IDE
Radioland BLE beacon module datasheet: https://www.renhotecic.com/image/download/pdf/2020031603025251822beacon.pdf can be reprogrammed with Arduino IDE and ST Link V2 to special remote button application. SWDIO -> SWDIO SWCLK -> SWCLK 3.3V -> BAT+ GND -> BAT- 3D printed cover for BLE module: Arduino IDE libraries for NRF51822 and instructions can be found from: https://github.com/sandeepmistry/arduino-nRF5 Nrf51822 Bluetooth low energy stack (Softdevice) version S130 is required to download and flash to device before BLE application software can be programmed : Selecting a SoftDevice SoftDevices contain the BLE stack and housekeeping, and must be downloaded once before a sketch using BLE can be loaded. The SD consumes ~5k of Ram + some extra based on actual BLE configuration...