red/green status board
a multiplexed 3x5 led 2-color (red and green) matrix with a button to control displays using arduino power source is a 5V micro usb cord i cut and soldered two jumper wires!
Created by
harqian
Tier 4
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zsharpminor
requested changes for red/green status board ago
Hi - this project seems to be already built? We unfortunately cannot fund soldering wire, soldering flux, tweezers, or wire strippers, we can only fund items directly related to your project, such as a PCB design involving your project. Please either design a PCB or resubmit this project without a grant so that your build can be reviewed. Thanks!
harqian
submitted red/green status board for review ago
Shaurya Bisht
requested changes for red/green status board ago
hey your readme looks ai generated. if you didnt write it please rewrite. also we need images of design schematics and files for design
harqian
submitted red/green status board for review ago
Shaurya Bisht
requested changes for red/green status board ago
I still don't see a readme with images and stuff of the design. Look at an example project for what it should look like
harqian
submitted red/green status board for review ago
harqian
added to the journal ago
finished the code and power!
woah the wiring is complicated and no doubt has many shorts
first time wiring a grid like this, very fun
wow the code was a hassle because i didnt have much experience with cpp when starting!
but yay it definitely works, have some cool patterns on it:
i later learned that i could have been even more efficient with the wiring by charlieplexing instead of just multiplexing: https://en.wikipedia.org/wiki/Charlieplexing
harqian
added to the journal ago
wired the led's on the perf board
this morning was like ok imma do something fun with leds; two color leds are super cool, so wanted to make something out of them
i was inspired by this guide but did not completely follow it, but the idea of multiplexing stuck with me
first time using a perf board, super fun!
(some of the leds were soldered in wrong in the background of this image)
(also i used the wrong side of the board :P)
Shaurya Bisht
requested changes for red/green status board ago
I don't see a readme or journals, so I don't really know what this is about. if you need funding please make a bom.csv as well. show a bunch of images of your project for validation in your readme as well!
red/green status board was submitted for review ago
harqian
started red/green status board ago
12/24/2025 1 PM - wired the led's on the perf board
this morning was like ok imma do something fun with leds; two color leds are super cool, so wanted to make something out of them
i was inspired by this guide but did not completely follow it, but the idea of multiplexing stuck with me
first time using a perf board, super fun!
(some of the leds were soldered in wrong in the background of this image)
(also i used the wrong side of the board :P)
12/24/2025 7 PM - finished the code and power!
woah the wiring is complicated and no doubt has many shorts
first time wiring a grid like this, very fun
wow the code was a hassle because i didnt have much experience with cpp when starting!
but yay it definitely works, have some cool patterns on it:
i later learned that i could have been even more efficient with the wiring by charlieplexing instead of just multiplexing: https://en.wikipedia.org/wiki/Charlieplexing