Looking at the example code on there is a battery monitor, Is there a voltage divider already built in to pin 13 for monitoring the battery state or do we need to add one?
Hi @vangalvin, both Wireless Shell and the bottom board don’t have a voltage divider circuit.
The positioning of this product is only a module, some users may need GPIO13 for some other functions, and users can use any ADC pin to read voltage.
But at this moment, I think the bottom board should have a voltage read example, we will add that in next version.
Sorry for this bad design.
Its not a bad design, its a great design
I will build up a voltage divider and set it up on one of the pins.