Hi, I am attempting to use the above, common anode device with a Bela Mini. I am using digital outputs to sink the current for the 7, (actually 8) segments. This works fine if I use the 3.3 volt line on the board but I need to activate each of the 3 led blocks separately. Is it OK to use digital output pins as a current source? For instance D6 to power one 7 segment led, D8 for the next and D10 for the third? I gave it a go and the LED's are quite dim but I'm worried about pushing the unit too hard and bricking it. Thanks