So I am reaching out to all you geniuses here. First of all I am so thankful I was able to find this site because I am at my wits end! The goal of the circuit below is multi faceted. It uses digital relays to switch back and forth from a manual control mode to a control mode run by software. This is the thre ic's at the bottom and that works very nicely. LLC is an Allegro Micro 1425 hall effect sensor, used in automotive speed detection implementations. It has two modes, one is that it can count the number of teeth of a ferritic gear as it passes by and the other mode(which is how I am using it, is to detect a single magnetic field as a permanent magnet rolls around on an armature. The 4013BEJ is a D type flip flop. It's purpose is to divide the signal from the sensor by 2 and to also produce a nice 50% duty cycle of off and on. This signal is then passed into a Numato GPIO board which drives the associated software. The software itself works beautifully and is well understood. Everything else on the circuit is to support these functions. There is a power LED There is a signal LED. There used to be circuity for an under speed, overspeed and halted alarms There used to be circuitry intended to drive a stack-pole for visual indication of current use. It is driven with 12VDC which is divided at various places to get specific voltages where they are needed. Here is the problem when I breadboard this circuit it seems to work exactly as intended, when I build a board and put it on together, I don't see the flip flop signal. I am looking for ideas suggestions and someone to mentor me a bit with this issue.