“Overall a nice thing to play with, but expensive. If you want to build an RGB clock then it will be cheaper to get a tft display instead of 4 of those. You really need to power it with at least 5V, as 3.3 doesn't seem to be enough for blue and (or?) green. Using 3x uln2803's I still have some issues (but it may be me doing something wrong) and it takes 21 gpios (for pwm without multiplexing) of my raspberry pi pico setup to control it. There's no dot, you can control only the digits' segments. If these would be cheaper I would be buing more but I think I will get something else instead.”
