NRF51822 sensor (S110) reconnection between different APs (S120)

[ldmxhj]

Hi, I am working on a project that the ble sensor will be mobile. I load mutiple nrf51822 with the softdevice S120 working as APs and place them in different places to extend its coverage. I load one nrf51822 with the softdevice S110 acting as the sensor. I expect it will automatically connect to the closest AP when it drops from the prvious AP. However, the sensor will stay in disconnected unless i reset the sensor or the closest AP. Any idea what causes that? Sensor: SDK Softdevice 8.0.0 + ble peripheral UART example AP: SDK softdevice 2.1.0 + ble central uart example

[ldmxhj]

The solution I have now is quit stupid: when one S120 AP detects an disconnection, then I will ask all the other AP to keep reset until one of the AP sucessufully connects to the sensor. But this solution is not very robust and will also impacts the data transmission from other sensors.