Hello guys,

thank you for your intels ! i recieved the pcb and built it, it works
i changed C1 for a 0.1µF, and removed R12
i kept the resistor bridge for isp comm.
i tried to activate buffer with irq but it's going rogue, gave up with that
i doubt that the inclusion button has any utility, it seems to be just an other reset button

It gives me a little serial gateway wich size is about the same as a "sonoff zigbee dongle plus"
i'll have to make an enclosure for it now

i had my answer on ahtxx issue

Hi,

...figured out that the _address is messed up (i guess by mysensors).

It is impossible, because _address is private variable. The private data members cannot be accessed from outside the class (mysensors can not see it).

Сan you try my original library but with class initialization line

AHTxx aht10(0x38, AHT1x_SENSOR); //sensor address, sensor type

and some pictures