simple arduino sketch to test the LEDBoard_4x4_16bit PCBs during / after production
connect one push button to D4 and GND. Single Click: toggle sequencer / channel check hold down: fade to ~100% as long as you push down
as board i used an Pololu A-Star Mini LV and a single LiPo-Cell to power it. To have a basic Low-Bat warning i have connected the VIN pin to A0 to measuer Battery Voltage after Polarity Protection (for details see Schematics) and a red LED to D3.
The Red LED is switched on if the battery voltage drops below 3.1V.
in this situation the boards are also switched off and locked.