Hey, t seems that it should NOT be gpio_pin=22 but gpiopin=13 or gpiopin=6 i.e. no underscore as the manual for this dtoverlay seems to be inconsistent, and the pin numbering is the BCM numbering not in WiringPi numbering nor in physical pin numbering... and it seems that one needs to solder on the board... COuld you please comment on that? Best regards