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Measurement of Battery Voltage without using Pins

userHead Account cancelled 2017-08-17 06:01:21 3044 Views2 Replies
Hello,

Does anybody know if there is a way to directly measure the voltage of the supply battery (6,4V Lipo) to log the battery voltage and prevent a deep discharge? As all my pins are already used, I cannot use an external voltage devider.

Would be really helpful if somebody got an idea.
Thanks in advance!
2019-09-16 01:11:50 I do realise that the post is two years old but it might help others. I am in the same situation and I plan to use an MCP3421 ADC connected to SCL and SDA pins therefore leaving all I/O pins free.
M
userHeadPic parmat1-trash
2017-08-25 21:23:30 Do you mean between the Vin and the power, you need a module can measure the input voltage? userHeadPic robert.chen