Bluetooth Low Energy motion sensor with nRF 51822 module

NRF 51822 is a very low power BLE System On Chip , that allows to use as Bluetooth Low Energy peripheral connected to Passive Infrared Receiver module.

PIR module used:

Schematic diagram of ble motion sensor:

HW build to 3D printed case:

Software for NRF51822 was developed with Arduino IDE:

NRF connect android application could be used  to check Bluetooth Low Energy  UART services and characteristics:

BleCameraNRF  android application is used to start motion detection  from Nrf51 module, check battery, temp and solar log.

Project files can be found from github:

https://github.com/joukohak/nrf51pir