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Hi, I've just bought a 40X2 (having used 28X1s so far) as I want more inputs for a project and I'm planning the circuit board. With digital inputs on 28X1 I had to use 10kRs to pull down the input to 0 (I put these on the main board and the slave boards (multiple 28X1's talking together via a...

I am a novice in electronics so small word replies please :-) I am (to prove I can) trying to make 8 LEDs turn on/off in sequence (similar to the ones on the front of KITT for those who remember Knight Rider). I have a 28x1 project board (so with the octal darlington on it). The simulator...