I apply 5V from arduino( actually 4.6V) to VCC and GND to arduino GND. I expect the LED on relay board should on, but nothing happened. I connect IN1
47634
The led's are connected in series with the opto isolator driving the relay. The input needs to be grounded to activate the led and the relay.
1197538
Connecting only Tx, Rx and Gnd works for all of my designs I have a few 5volt ones and a few 3.3volt. None of them seem to have any issues.
2076643
The driver in the drop-in most likely was not rated for more than 4.2 volts. You'll need to replace the drop-in or if you're able to just replace the driver with a better one since the original driver usually only provides 1/2 the amperage to fully power the LED.
1780327
Hi Rene, unfortunately I have not connected it to the Arduino Due, I used an mbed and found the drivers right on the mbed online repository. One thing to note however is that the device has separate pins for the clock and data SPI lines for both the memory card AND LCD, and for some reason they labled them the same as an I2C bus (SDA and SCL) - but they are SPI lines that get tied to each others SPI clock and data lines if you are using both devices. It's not real obvious in the data sheet, but a really nice cheap LCD for micro-controller s at a good price, just watch the pin labeling nomenclature. Hi Rene, unfortunately I have not connected it to the Arduino Due, I used an mbed and found the drivers right on the mbed online repository. One thing to note however is that the device has separate pins for the clock and data SPI lines for both the memory card AND LCD, and for some reason they labled them the same as an I2C bus (SDA and SCL) - but they are SPI lines that get tied to each others SPI clock and data lines if you are using both devices. It's not real obvious in the data sheet, but a really nice cheap LCD for micro-controller s at a good price, just watch the pin labeling... » Read More Hi Rene, unfortunately I have not connected it to the Arduino Due, I used an mbed and found the drivers right on the mbed online repository. One thing to note however is that the device has separate pins for the clock and data SPI lines for both the memory card AND LCD, and for some reason they labled them the same as an I2C bus (SDA and SCL) - but they are SPI lines that get tied to each others SPI clock and data lines if you are using both devices. It's not real obvious in the data sheet, but a really nice cheap LCD for micro-controller s at a good price, just watch the pin labeling nomenclature. « Show Less
587727
I'm not happy about the fact that there is no paperwork. You may have figured out the basis: +V is 12vdc in and GND is the ground. Terminal 1=N.O., 2=Com, 3=N.C. for relay "C" the rest follow 4,5 & 6 for relay "A"; 7,8 & 9 for relay "D" and 10,11 &12 for relay "B" . Jumper 4&3 for momentary (Only ON while button is pressed) jump 1&2 for press ON and hold ON then press again to release relay. Button S1 I haven't figured out. I will. Experiment, you can't blow it up.
1282515
hello, why would you do that ? never interrupt the neutral wire, neutral is ground. to have "this switch" work you need to be connected to a ground to complete the circuit for the led.
94501
The voltage is 12v. I don't know the current, but it should be fairly small for the LEDs. I replaced the fluorescent tubes in my RV by cutting the input 12v cables and soldering the LED parallel light string directly to the 12v input wires, and they seem to work fine. The adhesive on the back of the string of lights is not the best. It works initially, but the lights dropped down on the diffuser after a while. I have not done anything about that yet, as they still work OK.
1581334
Do you want the relative voltage between D- and D+, or the voltage on each pin to ground? Either way, I only measured resistance between the data pins and not their voltage to determine that they were not shorted together like I needed. Otherwise I don't know the data pin voltages. My guess is a voltage bias between 0 and 5v or just 0.
343853
You need to install a electronic flasher. There isn't enough voltage to make a standard flasher work
998398
You need to connect only the red & yellow wires across the switch. Red wire comes from the battery and yellow wire goes back to the relay coil. The black (ground) wire can be ignored.
1238563
LEDs can only be hooked up to a circuit one way. Make sure the longer lead (+) is hooked to the hot and shorter (-) is hooked to the ground. And you're probably burning out you LEDs. They're only rated for 3.2v, so if you're using a 12v supply without a resistor, you'll burn them up. You might get a bright flash as soon as you connect the power, but it won't work after that.
1880653
This is a copy of the Arduino nano, so you can find out more about it and the pinout here: http://arduino.cc/en/Main/arduinoBoardNano Short answer is that you can apply 7-12V to the "VIN" pin or you can bypass the regulator by applying 5V directly to the 5V pin.
587729
not to hard to wire. the gnd is - of 12 volt supply you need to run this. next to the gnd is 1v that's the + 12 volt, goes they. all the other connections are the relays out , all have normal open and close contacts. #1 is nc, #2 is common , #3 no, I think, and so on #4 no, #5 c,# 6 no relay 2, hope that helps. o and better to use a power supply that some what reg, from 11- 14 volts. bob
1713463
If I understand correctly: If you are using the motion sensor to control this relay, the motion sensor itself may not be giving the necessary voltage or output to operate it correctly. All I can add is to make sure you have the power leg and switch leg on properly. A multi-meter (reading volts) could help find your issue. Hope this helps.
317150
I didn't find a specific schematic for this board, but I followed the pinout and notes on http://arduino-info.wikispaces.com/ArduinoPower. if you scroll down to the discussion on the 8 channel relay module it matches this board.
1567054
Connect to the red and black terminals (not green!) and just put two equal size resistors on a breadboard. Middle will be zero.For example, output 12 volts and use the middle as ground. You then have 6V and -6V. You just can't be connected to earth ground, which is usually denoted by the color green.
1645764
Yes the relay module works with the Arduino duo, but the relay module will need an external power supply.