32x64 LED monitor
Posted: Thu Nov 05, 2015 12:54 am
I bought a few 16x32 LED matrix boards off ebay a while back and have been messing around with them. I've finally got round to having a go with them. Here's my initial results.
The camera is a tad over-exposed, in real life it is quite bright and clear but could do with a diffuser as in normal room lighting it looks like a lot of very bright dots close up but resolves to a nice picture a distance away.
Problems:
- one of the 4 boards is from a different manufacturer and has a different (better) white balance but worse purity
- the scan code (Arduino due, SAM3x ARM processor at 84MHz) is taking up 1/3 of the processor time (it has to clock out 2048 pixels 400 times a second for PWM)
- no colour of frame sync yet
- its a bit fussy about levels and syncs
The camera is a tad over-exposed, in real life it is quite bright and clear but could do with a diffuser as in normal room lighting it looks like a lot of very bright dots close up but resolves to a nice picture a distance away.
Problems:
- one of the 4 boards is from a different manufacturer and has a different (better) white balance but worse purity
- the scan code (Arduino due, SAM3x ARM processor at 84MHz) is taking up 1/3 of the processor time (it has to clock out 2048 pixels 400 times a second for PWM)
- no colour of frame sync yet
- its a bit fussy about levels and syncs