Power consumption comparison between different running mode in STM32L476

[shaoziyang]

I have made a demo board of STM32L476, to test power consumption in different mode. I have add a 10ohm resistor in vcc, calculating power consumption by measuring voltage in resistance.


demo board

0.jpg (58.67 KiB) Viewed 2242 times

running mode

2.jpg (58.76 KiB) Viewed 2242 times

lightsleep mode

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deepsleep mode (below 1uA)

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Above data are for reference only.

[abenragel]

Cool, that would be:

9.54 mA in normal running mode
1.32 mA in lightsleep mode ?

What was the system clock setting ?
Which Micropython FW did you use for testing ?

Jan