I have a Hyperpixel 4.0 screen connected to a raspberry PI zero. I need to drive a relay. On this page
You can use some jumper jerky to connect I2C devices to your HyperPixel 4.0, using the 5-pin female header on the underside of the board.
I can’t find any 5 pin header. Where is it? Am I being blind?
Am I correct in understanding that I need an additional bit of hardware to even drive a relay using one pin or can I just use pin BCM 10 directly to turn my relay on and off?