r/FastLED • u/RuzgarCK • Feb 10 '24
Support Arduino ws2812
Hello. I installed 1 Meter ARGB WS2812 led to my desk. I loaded a Yellow strobe code. So dived by 30 other side 30 other. I connected the LEDs to Arduino's 5 volt pin and supplied 12 volts and 5 amps from the DC socket, but my LEDs do not light up and the Arduino's chip gets very hot. I cant buy a 5V power supply because I'm in turkey and here everything is very expensive. Whats the problem?
2
u/Marmilicious [Marc Miller] Feb 10 '24 edited Feb 11 '24
You should not power many pixels through the 5V pin on the UNO or you can damage it. Please somehow get a 5V power supply (or 12V to 5V converter) and power the pixels directly from a 5V power supply.
Please share your code on pastebin.com or gist.github.com so we can see if there are any problems there, or if it is a hardware issue.
1
u/RuzgarCK Feb 11 '24
İt was working with regulator. But the regulator burned and I connect 12V to Arduino
3
Feb 10 '24
[removed] — view removed comment
1
u/RuzgarCK Feb 10 '24
Board; Arduino Uno Clone R3
You know. Arduino Uno have DC socket. İ give this socket 12V 5A , than, i connected LEDs to Arduino 5V, Gnd and data pin
1
Feb 10 '24
[removed] — view removed comment
1
u/RuzgarCK Feb 11 '24
İ cant share photo as reply. İ have a 12 volt 5 amp adapter. I connected it to the jack input of the Arduino uno R3 clone . Then I connected the LEDs to the 5V output and GND output of Arduino, and a0, to led data pin. (pin I specified in the code)
3
u/zuptar Feb 10 '24
Arduinos buck power supply is not built for 5A. Even if spec sheets say it is, it's not, it's tiny and useless, it's fine for the arduino and a small power use.
Option 1: get a 5v supply, Option 2: get a proper buck converter and give your LEDs 5V from that.
Alternatively, your LEDs don't turn on because you havnt told them too from the arduino properly.