KC868-A8 Schematic

[tanoshimi]

Dear Support,

could you please post the schemtaic of the 1.6 boards? I am confused with the pins 32,33, 36, 39 and their relation to S1,2,3,4 which seems to be different in v1.5. I am looking for a pin direct connected to the esp32 - without pull-up/down.

I tried to connect an AM312 to one of the pins S1-4 but it does only work with an external pull-down of 4.7k. This sensor ouputs digital 3.3V as HIGH and should be connected direct to a pin without pullup or down.

Thanks,
Tom

I had a similar problem recently and had to desolder the SMD pullup resistors from the board (and the 100Ω series resistor), then make a solder bridge across the pads so that the temrinals were a direct connection to the GPIO pins of the ESP32. I hope that Kincony reconsider this in future designs, because it's a weird and frustrating limitation to have those permenant pullups installed.