2 Channel Relay Not Working No Matter What I Do! - General Electronics - Arduino Forum
![2 Channel Relay Not Working No Matter What I Do! - General Electronics - Arduino Forum](https://europe1.discourse-cdn.com/arduino/original/4X/b/e/1/be1d608fb9d2625f61ea1592362e1f05da6d3a21.png)
So here is the situation. I want the Arduino UNO to control a LED strip that requires 12v at 600mA continuous. This is obviously too much for the Arduino so I decided to use a relay to control the lights. However, no matter which tutorial I follow, which relay issue I read, I always end up with the LED coming on and off without a relay click. I decided to try and see if I could run the relay using a separate power supply and have the Arduino just controlling the optocoupler. Still no luck. So I
![](https://www.circuits-diy.com/wp-content/uploads/2021/03/2-channel-relay-module-with-arduino.jpg)
How to Interface 2 Channel Relay Module with Arduino UNO
![](https://europe1.discourse-cdn.com/arduino/original/4X/6/c/4/6c42e495a070773ae4c6d5ac168ef597131fcac4.jpeg)
2 Channel Relay Not Working No Matter What I Do! - General Electronics - Arduino Forum
![](https://europe1.discourse-cdn.com/arduino/optimized/4X/2/4/6/24666a4a2df6e09a102abde5655588a4f275d55c_2_690x498.jpeg)
Basic Transistor with Arduino. Is this accurate? - General Electronics - Arduino Forum
![](https://content.instructables.com/FZN/6JOU/IKCV3GLJ/FZN6JOUIKCV3GLJ.jpg?auto=webp)
Controlling Any Device Using a Raspberry Pi and a Relay Module : 6 Steps (with Pictures) - Instructables
![](https://europe1.discourse-cdn.com/arduino/optimized/4X/7/0/e/70e99018dbdec0c4e814f36a33f42629646e4400_2_353x500.png)
does this connection make sense? - General Electronics - Arduino Forum
![](https://europe1.discourse-cdn.com/arduino/optimized/4X/0/5/1/0514ef42418bfe396193e1eacfb5892eb6952df9_2_375x500.jpeg)
Why is my 2 channel relay not working? - Motors, Mechanics, Power and CNC - Arduino Forum
![](https://europe1.discourse-cdn.com/arduino/original/4X/6/2/b/62b78322ae2b311017a95abd1aa65b0a96c6e90e.jpeg)
Relay module is active lowhow to reverse that - #39 by frodo_eggens - General Electronics - Arduino Forum
![](https://europe1.discourse-cdn.com/arduino/original/3X/2/3/237a80e7752d3e90e63ab50959ce6a23dfb29d53.jpg)
2 Channel Relay Not Working No Matter What I Do! - General Electronics - Arduino Forum
![](https://europe1.discourse-cdn.com/arduino/original/4X/3/8/3/3836c38bf57085ee3399a19f0b0d20b440acc109.jpeg)
Two Channel Relay not turning off - Hardware - Arduino Forum
![](https://europe1.discourse-cdn.com/arduino/optimized/4X/f/3/c/f3c707e42dea33ebb2a9634ec672e74615ead3a1_2_617x500.jpeg)
4 relay module no second GRD connection for relay coils - General Electronics - Arduino Forum
![](https://europe1.discourse-cdn.com/arduino/original/3X/f/b/fb289ee26a27db99aefd9f28a2a5b87ce5f5e60a.png)
SOLVED] Problem witch too high current on relay 8 chanel module. - General Electronics - Arduino Forum
![](https://europe1.discourse-cdn.com/arduino/original/4X/a/6/5/a6546e0f2c752c341b683eb3fa94c2f1ec60fc90.jpeg)
Problem with amp draw. Any Ideas. - General Electronics - Arduino Forum
![](https://europe1.discourse-cdn.com/arduino/optimized/4X/2/3/0/2305904b8d236c2f2d9b184134c082b4ffed909c_2_644x500.png)
8-channel relay board help (only some working?) - Project Guidance - Arduino Forum
![](https://europe1.discourse-cdn.com/arduino/optimized/4X/0/c/c/0cc4784bd8c0e8a3ca73a214da7d74a3d9b2314b_2_690x411.jpeg)
2 Channel Relay Not Working No Matter What I Do! - General Electronics - Arduino Forum
![](https://europe1.discourse-cdn.com/arduino/original/4X/f/e/2/fe202a801b4caf291c996ce33f4b8b34a7e40ade.png)
Controlling 2 channel Relay separately - Project Guidance - Arduino Forum