Wireless charging status check issue

[myoshida1199]

In helper.cpp function ---- bool checkPinCharging(int pin);

This function checks the analog value of charging pin . It determines if it is on the charging state
by the value of 2500 .

But in some cases , especially using wireless charging , analog value marks around 23xx - 25xx.
It depends on the distance between receiver and charger .

I recommend it would be safe to determine its state by the value of 2000.

[mp-se]

On the wireless receivers i have tested i get 5v out thus the voltage divider, so what what receiver are you using and how have you connected that?

[myoshida1199]

I use XKT510-24 and divider circuit in your document . Of course it marks over the value of 2500 . But it is the hardware .
It depends on each individual hardware build . Sometimes it is under 2500 . Just try it .
It makes your circuit design and firmware code unstable .

[mp-se]

i just tested the same driver with 9V input and I got a 5.1V stable output until i was around 10mm then it started to drop off to lower voltage. The current level triggers at values above >2V so that should be more than sufficient if the voltage drops a little.

• What is the distance you have used / tested with ?
• What board are you using ?

Some of the esp boards has internal resistors that might have impact on the voltage divider and resistance. But the GPIO config is board specific so it might be that the configuration is not correct for your board/cpu.