If I power my arduino with a 12v power supply will the output have 12v for relay?
924530
I can't answer about Arduino. I am using the PicAxe which can directly switch 12 volts, but can't handle any significant load. I run 5v to the logic side and run 12 volts to the control side of the picaxe. I also push the outputs to this board to switch other 12, 24 and. 110v circuits with higher loads. I will directly push LED circuits with the PicAxe and low load 12v.
924531
That depends. The 12VDC power supply that you use must have the current capacity for operate all the relays (Assuming there is the potential for all 16 to be active at once) I don't have a relay board available to test, but would guess the coil current to be about 50 mA. x 16 that means I'd expect the board to require at least 1 Amp with overhead. The Arduino plus any other users on the bus have to be added so I'd use at least a 2 amp supply to run the system.
1209728
Yes, compatible, make sure you wire up pin... 7? To be your 12vdc to your relay.
503235
Yes ; it has the relay output ; I purchased one of these a few months ago; and the documentation wasn't clear, but it has the relay output.
1543061
The pickup voltage and drop off voltages on relays are different. A 12v relay can pickup at 10v and drop of at as low as 7v. Hence, the current draw will be function of voltage. I hope this helps.
654888
It's output voltage is 5 volts DC (approx), to power an LED yes it can at 5 volts but you would have to add a DC to DC step up converter to get the 12 vdc
1899012
Short answer, yes. Just wire it up like how you would a light bulb; make sure to add a resistor, this thing only take 12volts DC only.
454983
I'm not exactly sure that I understand what you are asking, but here's my best shot. Hope it helps! Short answer: No. Long answer: If I understand this correctly you have 12V LEDs and a 110V dimmer? This power supply regulates to a target voltage around 12V optimally independent of the input voltage. Simply put, if you put 110V or 90V to this it should still output 12V. There is a voltage adjustment on here that you could use as a dimmer that lets you adjust the regulated voltage from 10-18V. So if you don't need a remote dimmer adjustment and this is enough variance for you then it might still work. Hope that helped, and let me know if you have any other questions!
2125138
It takes 5v to trigger the relay but the relay can control up to 110v. If you try to trigger the relay with 12v you might fry it.
284590
The short answer is yes. It provides a 12v source for any 12v device by reducing the 36v-48v system. Works great. I ran the + lead to a Multi- switch panel to provide power to all of the 12v components (lights, radio, 12v outlet). You will need to run a wire from the negative as a ground to complete the circuit.
962334
The switch that comes with it has 3 terminals, 12v batt. 12v switched out and ground. And there is no load on the switch because it only powers the relay. I dont see why not?
609854
You can control the whole relay board with the Arduino - no extra power supply.
852840
I used my board with an Arduino (5V) and used a separat 5V source. It may work with a Pi (3.3V) logic but for best results you may still need a 5V supply.
657043
I *think* they are for external power as you suggested. It would be useful when many relays were operated and their current exceeded the Arduino's power supply regulator circuit capability. I am running two 8-relay boards off the Arduino 5v but am careful to only operate 3-4 at a time. The Arduino forum may have additional insights. If using external power be careful not to exceed arduino's output pin voltage and current sink capabilities.
1206015
You have to supply 12V for Vcc and ground to the relays. The in1-4 can be triggered directly from Arduino outputs as long as your 5V and 12V supplies share a common ground.
1193943
NO, be certain to use a good DC power supply. I use a 20 Amp supply and it works fine with this supply.
833110
The output of 3 volt can be done but I am not sure about 12V I would need to do a test. Will keep you posted.
775875
The 120 gets wired into the scree terminals. Each relay can be normally on or normally off. There is a little diagram showing a switch on each of the sets of 3 terminals. I connect hot to the middle and the output to the normally off one. The pin header with for pins has a connection for 5v, gnd and two logic level inputs. Connect 5v and ground and the two inputs can go directly to pins on your controller. When both are switched it the board will be drawing a decent amount of current for the relay coils. You will probably not want to run it off the Arduino 5v pin.