Timeline for Easiest way to read a large bank of LED's
Current License: CC BY-SA 3.0
11 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Nov 17, 2015 at 17:48 | comment | added | TrapLevel | I did but my knowledge of parsing images through a program to remove the information isn't great. I decided to create a massive IO Expander with the TI TCA9534 | |
| Nov 16, 2015 at 16:56 | comment | added | Aaron McMillin | Did you consider a web cam? | |
| Feb 5, 2015 at 4:30 | answer | added | wa9vez | timeline score: 1 | |
| Feb 4, 2015 at 5:19 | answer | added | Dwayne Reid | timeline score: 2 | |
| Feb 4, 2015 at 2:14 | comment | added | TrapLevel | @DwayneReid: All of the LEDs are common cathode so luckily I can tie the GND to my circuit and just read all the positive voltages from the anodes. Preferably I'd like to know when one of the LED's turns a different color as quickly as possible since it could signal something really bad | |
| Feb 4, 2015 at 2:11 | comment | added | TrapLevel | @Samuel: Thanks for sympathizing! Access to each of the LED's pins is about all I have. | |
| Feb 4, 2015 at 0:16 | answer | added | wa9vez | timeline score: 1 | |
| Feb 4, 2015 at 0:09 | answer | added | WhatRoughBeast | timeline score: 6 | |
| Feb 3, 2015 at 23:59 | comment | added | Dwayne Reid | Are all the LEDs wired common Cathode or Anode? This does make a difference in coming up with an effective but low-cost solution. And: how often do all of these LEDs need to be read? | |
| Feb 3, 2015 at 23:42 | comment | added | Samuel | This sounds like a nightmare. Can you access the different color anodes/cathodes? I'd probably go with comparators early instead of routing a bunch of analog signals. That or set up, one of those remote viewing devices, a camera. | |
| Feb 3, 2015 at 23:31 | history | asked | TrapLevel | CC BY-SA 3.0 |