/diy/ - Do It Yourself

>>2571075
>>2571058
okay, i think this is making a lot more sense now. i've taken some time to go back over BJTs and revise the relevant maths.
this is what my data line display looks like now, and i feel like I mostly understand what each value here actually represents.
picrel should allow the proper current to drive the LEDs, as the 1.7k resistor attached to the data lines will hit the 0.7V forward voltage of the transistors when the base is fed >0.4V from the chip.