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24 MHz vs 48 MHz

A project log for Solar powered Bluetooth Thermometer with Supercap

Run Xiaomi Thermometer LYWSD03MMC with a supercapacitor and mini solarpanel.

martmetMartMet • 02/25/2021 at 20:30•0 Comments


I was curious what the impact would be on the overall power consumption. I plotted a comparsion between the voltage drop via 24 MHz & 48 MHz.

Seems that the 48MHz consumes less power as the device spends a larger part of the time in sleep mode.
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Runtime test with 1.5F Supercapacitor

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