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

Question

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 · Accepted Answer

Hi Ole, sorry to confuse you. The code I uploaded before is based on SDK10 multilink example and the problem of the handover does not exist. But I have some difficulty for integrated it together with the UART. I spent some time to restudy the code and did some changes on the SDK8 and I think the handover issue has just been fixed. We can close this topic now. Thanks you so much for your time and kindly help.