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    How to save battery with M5Stack Core 2

    Core 2
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    • N
      NickHatBoecker
      last edited by

      Hey guys,
      M5Stack Core 2 is my first controller. Normally I work in webdev and gamedev. I'm trying to create a MQTT monitor. The idea is simple: Check for messages every x seconds and display them.

      But I doubt that my code is efficient :/ The battery (500mAh) is not even lasting a day when constantly checking for MQTT messages in loop function. I tried to implement a timeout for MQTT checks. But that results in messages being not received (see the comment in the loop function).

      Maybe you could have a look at my code and tell me what I can improve?
      https://www.codebin.cc/code/cm7n9k4ox0001jv03t45j3yaj:AHZXQjLPQ75nXtJ9nq4tuXzUQrWn6hrjDaYAsNySRNT5

      Btw, I'm using UIFlow 2.0. Started using the UI but after looking at the autogenerated code, which was a total disaster, I started to write and optimize the code myself.

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