⏲️ MakerHawk Time Delay Relay: 12V 5V USB Controller Board with LCD Display for Delay-Off Timer Control Switch Review

Used together with a 12V motion sensor on an old traffic light. When detecting motion in the bathroom, the traffic light switched from green to red. Set the timer to 15 seconds, motion will reset the timer if it is not completed and then switch back to green if no motion is detected.

The product I received looked similar but it is not a MakerHawk time delay relay. As a result, I got a burned board along with soot on a clear plastic case. Until I tested the board I doubt it will work. Apparently it was previously sold, returned and then put back into stock. You have often read other buyers' comments about this scenario and now it happened to me!

This product appears to work well and has seven different program modes. However, it comes WITHOUT INSTRUCTIONS! What you see on this page is all the information provided. I had to spend over an hour playing with all of the program's modes and figuring out what they do and how they work. Huge waste of time. If instructions had been included, it would have been four or five stars.

I bought three of these gems to control my chicken coop and they work pretty well except the timing circuits are pretty inaccurate! In a 24 hour cycle (1440 minutes) he gains 21 minutes! Still playing with it to get my 24 hour cycle. Once you understand the programming, you will see the power of this device. Apart from the sync problem, a very useful little device. UPDATE: After some experimentation I was able to get the correct time for an actual 24 hour period of 1417 minutes instead of 1440.

1. No instructions are provided with the unit. VERY BAD! 2. No model number listed; Therefore, it is difficult to research the product. Searching manuals FOR MAKERLHAWK will find information about other articles.3. Some information was provided by the "FCL reviewer" and was VERY helpful but seems a bit incomplete after all that has been done. I'm not complaining at all; Reviewers are not required to provide all work details unless provided by the seller.4. I encountered an unexpected and…

User manual intended for other purposes. El producto funciona perfectamente. Working mode: P1: After the alarm is triggered, the power relay for the OP time, then turn off; during the OP time, the retriggered signal has no effect. P2: After the signal is triggered, the power relay turns on for the OP time, and then turns off; During the OP period, the signal is triggered again, the P3 time starts again: after the signal is triggered, the power relay turns on for the OP time and then turns off…

Our on top microwave oven has an exhaust fan that extends through an excessively long duct to an outside wall. We added an optional external wall fan, but the microwave fan switch wasn't available and I didn't want to manually turn the external fan on and off. To handle the switch we installed a 110VAC pressure switch on the duct with the idea that the increased pressure would turn on the external fan when the microwave exhaust fan was turned on. What actually happened was that the external fan

I was looking for a module that would work by simply pressing a momentary button. Simple circuit closure between two terminals on the circuit board. In my case this is a human operator pressing a key, this operator doesn't have to care about the delay or the exact activation time. This is done with a so-called low-voltage trigger. I needed a timer that when triggered would be delayed by a programmed time while the relay is still at rest. In my case I wanted this time to be 4 seconds. After…