So I have 3 relays thath are being controlled by an arduino uno
Im controlling 1 heatingresistor and 1 motor using 2 of the relays and 1 LED-strip using the third relay.
The consuming components are all powered by an external power supply (LED-strip -> 12V) (Heating-resistor 24V) (Motor 5V). And the relays are powered using arduino uno
The LED-strips work just fine. But when I upload the code to let the other 2 work the (2) relays jump off. So only the LED-strip works.
Whenever my external power supply is off the relays work (I can see the red LEDs wich means on). But when I turn the external power on the 2 relays jump off (Heating resistor and motor).
What does this mean??? They are connected exactly the same as the LED-strips..
Also my code is right since its 3 lines wich only set the relays HIGH. ( for testing )
I also have scheme's if you would like them (just ask).
Thanks in advance,