![]() ![]() ![]() When we were done soldering, we realized that if we now attach the ics from the plastic side (down image), they will be mirrored, having wrong pin placements!.After the plan was made, we started using it on the copper side (top image) to solder the 16 pin jacks and the plug jacks.the copper strips go from left to rightīy rotating the middle row of ics by 180 degrees, we can spare some cables for ground and the select pins.Īfter soldering it together, the board looked like this:Īs this was our first real electronics project, we ran into some unforseen problems.To connect all 44 controls with the multiplexers to the arduino, I drew this board plan: so with the 12 analog inputs of the arduino, we can connect up to 12x8 = 96 controls.this "trick" is also called time multiplexing, which makes the cd4051 a multiplexer.by constantly looping through all inputs, we can read all 8 controls in a short amount of time.This is done by splitting the three digits of a binary number (000-111) to the three select pins. ![]()
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