"should be just..." <- > <@dirbaio:matrix.org> should be just > > - L4 nucleo GND -- H7 nucleo GND -- saleae GND > - L4 nucleo gpio output -- H7 nucleo gpio input -- saleae > - H7 nucleo gpio output -- saleae so say I first do this step: > L4 nucleo gpio output -- H7 nucleo gpio input -- saleae then connect the salae GND to the L4 GND... I can see the pulsing on the salae then as soon as I connect either another Salae GND wire to the H7, or the L4 GND to H7 GND, I stop seeing the pulses