Connection Multiple BLE Servers (sensors) To One BLE Client

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Q&A Forum › Category: ESP32 › Connection multiple BLE servers (sensors) to one BLE client 0 Vote Up Vote Down Bukasa Tshilombo asked 5 years ago

Hi, Do you know how I can connect multiple BLE sensors (each with unique MAC addresses) to one client? I am using the ESP32, but I can use nRF52 or Arduino BLE devices if necessary. The idea is that the ESP32 will connect to several temperature sensors and accelerometer/motion sensors and collect/log the incoming data. Thanks for your help.

Question Tags: #Bluetooth #BLE #Sensors 5 Answers 0 Vote Up Vote Down Sara Santos Staff answered 5 years ago

Hi. If I’m not wrong, the ESP32 can only connect to one BLE device at a time. So, if you want multiple devices, you’ll need to connect and disconnect from each node at a time. Regards, Sara

0 Vote Up Vote Down Ian McNeilly answered 5 years ago

It should be no problem to connect multiple BLE sensors to an ESP32 : https://github.com/esphome/feature-requests/issues/552  I have connection to 3 BLE sensors in the (ESPhome) log on an ESP32 ,they are seen as devices by HA just not advertising their values.

0 Vote Up Vote Down Bukasa Tshilombo answered 5 years ago

Thank you both for your responses. I will follow up on both approaches.

0 Vote Up Vote Down Ian McNeilly answered 5 years ago

I now have 5 Xiaomi BLE temp/humidity sensors working properly on an ESP32 using the Telink Flasher and Esphome , maybe change the sensor type and try your luck see video https://www.youtube.com/watch?v=K-HG7qs9hK0

0 Vote Up Vote Down Bukasa Tshilombo answered 5 years ago

Thanks, I’ll check it out.

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