Custom circuit board to connect 16 units of an analog sensor and a LED. Control via a 16-channel Analog Multiplexer and a 16-channel Constant-Current LED driver (+ shifter register). The boards are chainable besides the analog output of the multiplexers.
v1 has SOIC packages for the two chips, and through-hole packages for all other parts, for easier soldering.
- 2-layer board
- 3.4 x 2.9 inches
- 35 mil power traces, 20 mil default traces
- 13 mil minimum drill size
- 10 mil clearance btw. traces
What it looks like assembled
- indicator of LED polarity (on power LED, and sensor-module LEDs)
- analog output pin hole too big