Is it normal for an ESP32C3 to get very hot? #397
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I am running the async BLE example and my ESP32C3 is very hot. Even the bottom side of the PCB is hot, not just the microcontroller square. A USB c to c cable that I am using shows 1W power usage. Is this normal? |
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Replies: 2 comments 1 reply
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Only use quality boards or certified esp32-c3 modules. Probably, antenna isn't well matched due to poor design. |
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I am using a $2.50 ESP32-C3 Super-Mini from Aliexpress, and it doesn't have an antenna attached, so that's probably why. I don't think the problem is caused by esp-wifi, I was just wondering if it was normal. I guess the quality of the board determines how hot it gets. Are there other people with a cheap ESP32-C3 Super-Mini that also gets very hot? |
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One thing to note about the examples: they raise the CPU frequency to maximum - it's possible to use a lower clock frequency which will lower power consumption and emitted heat (but things will be slower) |
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Only use quality boards or certified esp32-c3 modules. Probably, antenna isn't well matched due to poor design.
Try some BLE and WIFI examples using esp-idf or even arduino to confirm if this problem isn't caused by esp-wifi.