NOYITO 30A 1-Channel Relay Module High Low Level Trigger With Optocoupler Isolation Load DC 30V AC 250V 30A for PLC Automation Equipment Control Industrial Control (1-Channel 5V)

(3 instead of a The 3v is 2 of the 4 channel relays I bought have a bad relay on each. It takes the relay one time to switch over, but it does not The following < This is common). On the other, there was a problem with the control circuit This circuit consists of five relays running off a regulated 5V. Power supply with a 0v voltage that is carefully There are two other (4 channel relays) that work fine without a problem.

Update Tests with the replacement relays resulted in identical issues, and it was found that they are not defective. The number 3 is not the same for all optocouplers. The same 4 relays can operate at 3v even if they are in the same set. It is a 3-piece set and I have bought several of them from other vendors. I tested with a Raspberry Pi and found it to be 3V friendly. Although the appearance may suggest they are the same, these are not the same as the others. It is only when you are using High Triggering that they function at 5v. Getting low triggering to work with 3 is no problem. These work just fine with 3v. * The relays, which are used here, are awesome. Their advantages can be quantified by the way they performed in projects involving 120v 1HP pool pumps and DC switching. of the pumps is over a year old, and it is the one that is most stressed with pool pumping. As of yet, I have not had any relays fail on me. They work for a long time as long as they work out of the box. (I've been using them for just over a year). In order to use these relays with a Raspberry Pi, you will need 5v control and you can do this with either a voltage shifter (available on Amazon) or with Low Triggering or by looking for other relays that resemble these but It is friendly to three. Occasionally a relay within the 4 group will work with a relay within the Among the 3v, 1 is likely to not show up.

Chana McCormick

| Mar 11, 2021

ten (10) of these in a solar project. Knock on wood, I have had great success with all of them, as they all worked efficiently. In addition, the board is beautifully laid out with a legend right on it. The only mistake I made was using 5v from my Arduino project to power the relays, which requires more power than the Arduino board can provide. It was my own fault, and once I provided 5v using an independent power source, specifically for powering the relay(s), everything was fine. Further, unlike many Internet of Things accessories, these relays have good input and output connectors, which means I am able to use high quality (thicker) wire than other devices. The board is additionally provided with useful relays, one of which indicates that electricity has been supplied to the board and relays, and the other for each relay to signify that it It is worth buying more, and I recommend it to my colleagues and friends!.

Dakota Katz

| Jun 08, 2021

Working with version 3. 91 of the VDC. A Raspberry Pi with three volts of power. The second drawing is below. An average of 19 mA is drawn from a 3V battery. The relay will be activated by the third VDC command source. A total of 169 mA is drawn For the relay to work, you need zero volts of power. The following is a drawing. In order to get 5 mA, you need to take 5 I will be using it NC to switch 350 watt 24 voltdc source to the Ender 3 Pro via Octoprint with PSU Control plugin, and will use the zero volt power supply when no voltage is passed to the command line.

Katie Hines

| Nov 01, 2020

Once upon a time, the relay worked perfectly, but now it needs a slight tap to get it working again Once the device has been turned off, it should engage. Now I have to keep an eye on the oven constantly, which makes it kind of useless. I'm going to open it up to check if the contacts are dirty, but if the contacts are clean, it should certainly have lasted longer.

Elias Kennedy

| Sep 27, 2020

They are Type C relays, which for many applications have a nominal current of 10A or 20A rather than 30A. A 2 has been run on mine. I can run a 5HP 240V motor without burning out the relays, but a 6KW (25A) heater consistently ends up in the relays' dead zone. In that case, I will have to go with a beefier relay. Don't expect these to handle all loads up to 30A when buying them!.

Elizabeth Suarez

| Jul 28, 2021

In our experience, the 5V 4 relay model works well with the Raspberry Pi 4 when it is set to hi and powered by Compared to the 10 amp relays, the entire board works much better because it offers higher current ratings, the option of hi or low power direct for each input, and decent screw blocks to secure the wiring when hung up. Only two concerns I have are the lack of instructions and the fact that the screw block for the control wires had locked them back so tightly that I had to make a small flat head screwdriver with a ratchet handle to break them free. There are only a few issues with the board, but no major issues.

Layla Cain

| Mar 04, 2021

The software does what it promises to do. turned on my printer with my raspberry pi and turned it off with I. Octoprint has a plug-in that makes it work without any hassles.

Bentley John

| Mar 01, 2021

As of right now, I use this button to turn on and off the spindle of a CNC machine I built. For the price, it is very good for the work it does. I printed a DIN rail bracket to mount it to and the wiring was easy to figure out. It works as advertised and I am very pleased with it.

Phoenix Cooke

| Oct 11, 2020