Hi out there.
I realy enjoy to do projects with Cayenne. Its super simple.
But i have a real world problem and i hope anyone out there can help me:
I´ve made a outdoor-Whirlpool-Controller out of my RaspberryPi with Cayenne. I can controll the filterpump and the heater.
Both are controlled via a dual-relaisboard. Problem of this board is: it has inverted inputs. So, when the relais should be off, the GPIO has to be high. So far not problem. But we had a power-outage last night. Afterwards my PoolPi came up again and activated the pump and the heater. So my pool was useless heated.
How can i set the GPIO default as high after bootup?
Can anyone help?
cheers from Germany