Bluetooth between 2 ESP32s

spanky
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Joined: Thu Nov 30, 2017 6:35 pm

Bluetooth between 2 ESP32s

Postby spanky » Tue Dec 19, 2017 4:59 am

I would like to have 2 ESP32s permanently paired over BLE. One will be on full time, while the other will be in deep sleep, waking periodically to transmit a few bytes.

Are there any simple examples for a pre-paired connection that can establish quickly following a wake from deep sleep and transmit a “hello world”, or should I implement the whole GAP/GATT stack as per the idf examples?



A side question, which uses less power, BLE or LoRa? I know thats a loaded question, just looking for some opinions.

Thanks

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