My Projects - electronic:led http://www.projects.scorchingbay.nz/dokuwiki/ 2026-10-04T16:55:09+00:00 My Projects http://www.projects.scorchingbay.nz/dokuwiki/ http://www.projects.scorchingbay.nz/dokuwiki/_media/favicon.ico text/html 2026-09-06T20:13:11+00:00 Anonymous (anonymous@undisclosed.example.com) bj0324 http://www.projects.scorchingbay.nz/dokuwiki/electronic/led/bj0324?rev=1788725591&do=diff [BJ-0324 overview] Recovered from Anko LED strip light 3M , factory code F100882, 5V USB. Hardware description This small USB powered board accepts commands from an infra-red remote to control the behaviour of a strip of RGB LEDs. I started to document this as it seemed like a great low power interface for all sorts of things as it contained a microcontroller, serial eprom, 3 driver transistors, an infra-red receiver and connections for 3 switches. But once I found the datasheets for the mic… text/html 2026-09-06T20:12:14+00:00 Anonymous (anonymous@undisclosed.example.com) coh309toa http://www.projects.scorchingbay.nz/dokuwiki/electronic/led/coh309toa?rev=1788725534&do=diff [COH309TOA overview] LED Description ModelCOH309TOA/E1Manufacturer Recovered fromClockBoard IDsCOH309TOA/E1, PC-1 94HBDigits3½ColourredDriver IC Arduino driver Connectorpin headerNum Pins16Pin spacing0.1“ [segment labels] Pin#digitsegdigitseg1 am21bpm31c2e42b2g52c2d62a2f73f3a83g text/html 2026-09-05T05:28:02+00:00 Anonymous (anonymous@undisclosed.example.com) sidebar http://www.projects.scorchingbay.nz/dokuwiki/electronic/led/sidebar?rev=1788586082&do=diff LED module data * COH309TOA/E1 * BJ-0324 text/html 2019-11-15T21:11:56+00:00 Anonymous (anonymous@undisclosed.example.com) start http://www.projects.scorchingbay.nz/dokuwiki/electronic/led/start?rev=1573852316&do=diff [Cone icon by Fornax, CC-BY-SA 3.0, wikimedia commons] I have a few LED (light emitting diode display) modules, recovered from various scrapped devices, that I wish to use in Arduino projects. They vary from 1/2“ high single digit displays to tiny multi digit calculator displays. [Recovered LEDs] Overview Many older devices use LED displays for numeric readouts, less commonly they are used for alphanumeric displays.