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Is ESP32 BLE really power efficient? How does it compare with Wi-Fi? And with a dedicated BLE beacon?
Power is a precious good in battery powered devices. Today we will investigate how much power a ESP32 burns in normal mode, using Wi-Fi or Bluetooth, in deep-sleep, and in mixed scenarios where it sleeps and sends data every few seconds.
The beacon I used contains an N51822 chip
Links:
BLE Beacon Sketch: github.com/ibm-watson-iot/dev...
Breakout board: s.click.aliexpress.com/e/HzjfuBq
Supporting Material and Blog Page: www.sensorsiot.org
Github: www.github.com/sensorsiot
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