User manual

soon as you let go, the next state will follow (0000), and then

all the other follow until the goal state of 1100.

11 Play me a song

So far, there were only two programs that were selected with

0 V and 4.5 V at the selected input (pin 8). But the controller

also detects other voltages. In this case, a voltage divider

of 10k Ω (brown, black, orange) and 100k Ω (brown, black,

yellow) is located at the input, so only a small voltage is

measured. The microcontroller then knows, immediately after

restarting, which program should be started. And that’s a lit-

tle automatic pipe organ.