I think if I design mine well and I don't just have the screw connectors down one side, instead having them spread across 2 or 3 sides I could probably get it down to 10cm x 10cm which is only $18.90 for 5. Assuming that leaves enough space for 20 to 24 transistors.
There we go, very simple test.
4 LEDs addressed from one shift register, 4 LEDs addressed from the other.
I wonder of that will work with the PWM frequency library.
Is it the power supply (if you're using it) that has fixed the flickering?
:) Can you make it play a song?
Nooo. Really no. Don't make me want to spend even more money designing my own PCBs as well. Yes, I'd love to. I've already spent too much. Lots of little spends adds up.
Do all 5/10/whatever boards need to be the same?
ShiftPWM allows you to choose the PWM frequency so the other library isn't needed.
It seems anything over "75" stops any flickering. I had it at 150.
I'll try 3 shift registers tomorrow.
Currently yes, but I'd have to hand code it and I think I'd go insane. Next job is improving the software. A lot.
I can wait til the software is better. Can you play the theme from Project X on the Amiga?
Aha. Handy. Is 150Hz enough with them dimmed? Think it's more noticeable in a dark room too. Lots of useful libraries for the Arduino.
I'm still waiting for my two Nanos. I have a USBASP programmer which I'll use with my Pro Mini for now. Also waiting for a FTDI adapter which will be an easier connection than the USBASP. Gonna have a play with the nRF24L01 transceivers. Did you add a capacitor to the power connections on yours?
I asked on the Arduino forums about the bits in that LED controller. They are FETs and rated at 2.8A. Must be heat dissipating pads.