Timeline for LED Matrix design without micro-controller
Current License: CC BY-SA 4.0
10 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Oct 14, 2019 at 16:48 | comment | added | D.A.S. | Your requirements are unclear. A Matrix suggests selective LED switching with constant string current regulation. This is something simple just an “array” defined by the Series number S and Parallel strings P with switches. thus white 5mm could be 4S6P with Rs = 600mV/20mA =30 Ohms or Red 6S4P | |
| Oct 14, 2019 at 16:45 | comment | added | Christos Xygkos | It is not an existing strip. The LEDs are individual and connected in series | |
| Oct 14, 2019 at 16:39 | comment | added | Jack Creasey | @ChristosXygkos ...and the rest of the information? ...include the current flow for your LED string. | |
| Oct 14, 2019 at 16:39 | comment | added | Nedd | As per the first comment some LED modules for fancy automotive lighting come with resistors already in the modules. There are some that even allow you to cut them shorter and still run directly from a 12V source. | |
| Oct 14, 2019 at 16:30 | comment | added | Christos Xygkos | The battery is a car battery and I want to have 4 rows of 6 LEDs each | |
| Oct 14, 2019 at 16:25 | comment | added | Jack Creasey | You don't give enough information for a sensible answer to be presented. What is the forward voltage of your LEDs? How many are in series to be driven by the 13V? Is the 13V a car battery (voltage up to 14V or a regulated supply? | |
| Oct 14, 2019 at 16:14 | comment | added | Peter Bennett | Many of the common LED strip lights have groups of three LEDs and a resistor connected in series, with many of these groups connected in parallel. | |
| Oct 14, 2019 at 16:14 | answer | added | Nedd | timeline score: 0 | |
| Oct 14, 2019 at 16:12 | comment | added | jsotola | get LEDs that are designed for automotive use and connect them all in parallel | |
| Oct 14, 2019 at 16:04 | history | asked | Christos Xygkos | CC BY-SA 4.0 |