| ▲ | 4gotunameagain 8 days ago | |
There's a BOM, you can find out. Plus some peanuts for the PCB :) Now whether you get it populated or not.. https://github.com/Nicholas-L-Johnson/flip-card/blob/main/ki... | ||
| ▲ | unwind 8 days ago | parent [-] | |
Just as a point of interest perhaps for folks who are not familiar with PCB design and modern electronics: the "huge" matrix of 21x21=441 LEDs would, with the specified LED from the bill of materials (BOM) cost all of $6. That is based on the price for low quantity (1-500 pieces) though; if you were to build more than one board you would buy more LEDs, pushing the per-LED price (way) down. You can get 4,000 LEDs for $30.' Edit: here is the LED in question, from the BOM [1]. | ||