I’ve given this a go with no real luck. I may have read your instructions wrong but this is what I have done…
From the RC circuit
Button A wired to Crumble input A
Button B wired to Crumble input B
Button C wired to 100k resistor to Crumble input A
Button D wired to 100k resistor to Crumble input B
I might need that better explanation after all!
Not really related to the above but I’m also getting huge amounts of jitter on the servos. Do you have an tips?
Thanks in advance!