Also, worked out the solenoid trigger circuit. This circuit will let me trigger a solenoid with a short burst when a switch is closed, and it will let me signal the score unit with a 5v level signal at the same time. It doesn't matter how long the switch stays closed, there will always only be one short pulse per switch close event. I can use this with the Pop Bumpers, Slingshots, and to reset the drop targets. I can use the same thing minus the TIP120 and high power side for the drop targets, stand up targets, and rollover switches. Needless to say I am going to have a lot of these in the machine (8 with the TIP120s and around 20 with just the score pulse). Here's my test setup for it (the pcb on the left there is just providing regulated 5v, the 24v supply is off to right out of the picture):
1 comment:
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