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I'm planning a setup with an rpi3b+ and the pijuice hat (battery) and pijuice solar module. It is key to my project that I can access the following data digitally i.e. in the pi:

  • current power consumption of the pi
  • current power output from the solar panel
  • battery charge in %

The pijuice hat connects directly to the pi's 40-pin gpio header and is already supplying me with the battery charge in percent. The panel is plugged into the power management board (hat).

What components do I need to measure the consumption of the pi and the output from the panel?

rn42v
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2 Answers2

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What you are describing is a coulomb counter. Looking at the pijuice Hat you linked to I do not see that function. Take a look at Grove coulomb counter, it is based on the LTC2941 by analog devices. It is also sold in the Arduino arena. There are several available from different sources and/or you can make your own.

Gil
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It was in their documentation all along, I was simply looking for the wrong thing. Both input and output can the read via their api.

rn42v
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