[2 Pack] DC 6-30V Timer Relay Programmable Delay Relay Module Cycle Timer with LED Display / 5V Micro USB, Smart Home Controller

I used this relay as a timer on Lionel train display. My gateman is hooked up to a short piece of track, so he would toggle in/out in between the trucks of the cars. I used this relay with 0.7s delay using the P1.2 mode, so that it would trigger when the first car went by and reset the timer as the remaining cars went by. Worked perfectly. Now my gateman comes out when the first car comes by and stays out until the last one passed by. Very happy with this purchase. Programming: A bit awkward, but it works. I had to read the manual a couple times to get the programming of the time correct. Overall though, there are a lot of options, this is an extremely flexible design. My only gripe is that the instructions are not printed. In case this listing is ever removed, I saved the instructions in a text document. Power: For power, I hooked the 18VAC from the train accessory into a KBP310 bridge rectifier, which yielded 15VDC. I then added a 470uF capacitor. Note, if the capacitance it too low, the unit will not power up. Trigger: I ran the 18VAC train accessory power into the "Trigger" input. I ran the ground trigger from the track to the "GND_t" input. No optocoupler needed. Nice. On the output, I ran track ground into the COM and the NO (normally open) output to the gateman. So when the unit is triggered, the relay will close, the gateman will be grounded, and the gateman will come out (assuming you hook up power to the side of the gateman).

Works great on my Ram 2005 3500 truck. I needed to program SWC wire functions for my Atoto Android radio regarding selecting side or rear camera to execute live rear view command and then execute the back command when turning the cameras off. I also setup a separate on/off/on toggle (upper left next to epoxied wood board), to program the Atoto SWC function. These relays automate the process of using the cameras. I have a dash mounter rocker switch on/off/on to view the side or rear camera and swap coax video feed into the live rear view command. And also do the same with the right turn signal to view the side camera. The trigger for the boards is when I turn on my camera selector rocker switch. When I turn on the camera switch, the top board executes the SWC command for live rear view using P1.1, and when I turn off the camera switch, the bottom board executes the SWC command for the back button to escape the view and show the screen Atoto was on before.

As other buyers have already said, this is a great little device but it is challenging to learn. The instructions could be clearer but once you learn what they are trying to say you find it is a fantastic device. It retains memory after being powered off and that is very important. Unfortunately I needed this device in a hurry for a Halloween prop and I was not able to learn the programming in time so I had to do without. After Halloween I was able to sit down at my work bench and do like everyone else said and tinker with the options. Having the flexibility of full minutes or decimals of a second is very useful but it adds a layer of complexity. It is not worded well how this works, in the instructions they say to press the stop button to rotate between xxx, x.xx or x.x.x. It took me awhile to realize that when I press the stop button it doesn't show xxx, x.xx etc. it shows my number (60 seconds) as 060,0.60,0.6.6.0, etc. It was a "duh" moment for me. Also, figuring out the wiring if you wish to have a start stop button could be better explained. Thankfully one of the previous users posted a photo and I was able to see how they did it. I'm a visual learner so something a drawing or schematic would better server than their broken English explanation. You ultimately need to run a jumper from your power inputs to the start stop terminals, then your button will complete the circuit. My suggestion would be for the circuit board to have a separate tap specifically for start/stop. Overall very good to use once you learn it, opportunity for a V2 for sure. This will be my new standard for timers now. Away with the old potentiometer adjustment style where you don't know if you are making the delay longer or shorter. Oh, very well made circuit board too.

Really great little timer/Relay board but instructions could have been clearer. Important things to know: 1. It is powered by EITHER 5V micro-USB OR the 6.0-30V pin of the terminal block NOT BOTH. 2. solder the gnd and gnd_t pins together if your trigger voltage is tied to the same gnd as your power supply. This is an AWESOME feature if your trigger signal can't be reference from your supply voltage. 3. All of the triggers modes I tested (P1.1-4) required a "rising edge" voltage transition to trigger. IE: 0 volts to 10V etc.). There may be a way to trigger on falling edge but I didn't need it. 4. NOTE: if you are running at a higher supply voltage (>>6V) you will notice the board will get warm/hot. That is normal as the circled device (linear voltage regulator) will be dissipating up to 2+Watts ((Voltagein-5)/.1A) while the relay is energized. In my use I was powered by 24V so for me I measured .1A while the relay was energized hence: (24-5)/.1=1.9W . tricks can be used to dissipate power elsewhere (series power resistor feeding the 6-30V power input but that will get hot as well). 5. The MOST useful mode I found was mode P4 which turned the trigger into a level trigger which energized the relay as soon a trigger voltage was present. the counter started counting down once the trigger voltage was removed but the relay stayed energized until the the counter counted down to 0. VERY USEFUL AND VERY FLEXIBLE!! I used it control a sump pump which the trigger voltage coming from a float switch that control be a be unstable.

I like this timer, it seems usable for many situations, many probably past my needs. Some uses I might just invent for the fun of it. The only thing I miss is a good manual explaining the programs in plain English. So I wrote my own: * Press the set button for a few seconds to then use the up/down buttons to select the program you need. Press the set button shortly to cycle to the various OP(en) and CL(ose) timers and LO(O)P counter. OP(en) timers can be programmed in increments of a second, CL(osed) timers can be programmed in increments of 1/10th of a second. * The trigger circuit (Trigger and GND_T connectors) is galvanically separated from all circuitry by means of an opto-coupler wih a 2.2K resistor in series. While the board needs at least 6V, the trigger is activated with voltages as low as 1.5V over the Trigger and GND-T pins. * WARNING: Although the relay states it can handle up to 250V the circuit board is not designed well enough to safely handle anything above maybe 48V. (It is missing it's air gaps to make it safe.) Abbreviations used in display: P -> Program OP -> Open - no power to relay CL -> Close - relay is powered LOP -> Loop - number of cycles turning off and on before staying off. Abbreviations used on board COM -> Common wire - put power to this wire to then put your load/device on NC or NO. NC -> Normally Closed - when the relay is not powered this contact is closed. NO -> Normally Closed - when the relay is not powered this contact is open. Available programs P1.1: Run once for CL seconds after power has been applied to trigger. P1.2: Run for CL seconds each time power has been applied to trigger. P1.3: As 1.2 but turn off when power is re-applied to trigger within the countdown time. P1.4: Run once for CL seconds but there is no power to trigger needed. P2.1: After applying power to the trigger delay for OP seconds, then run for CL seconds. P2.2: After applying or removing power to the trigger delay for OP seconds, then run for CL seconds. P3.1: Cycle on and off for OP and CL seconds and LOP cycles when power to trigger is applied momentarily or permanently, restart cycle in "on" phase when power to trigger is re-applied during "off" phase, stop cycle when power to trigger is re-applied in "on" phase. P3.2: Cycle on and off for OP and CL seconds for LOP cycles without the need to put power to the trigger. P4 : Run when power is put to trigger and continue for CL seconds after power has been removed from trigger. Note * The 5v USB connector can be used for programming/exploring but most programs won't run as the trigger port can't be self-powered by the board's 6.0~30V input. However, and I have not tried this, but I believe that if you bridge diode D2 and voltage regulator U3 you can have a complete 5V 500mA project going from a standard 5V USB cable.

I had to ammend this review from 1 star to 3 because I didn't have any voltage on the output the first time I tried using these timers. Subsequent research led me to find out you have to jumper power from the main power connection to the COM connection on the other side of the board. Then you have to connect to one of the GND connections as well. Still only giving 3 stars because there is no included directions to explain any of this. You are left in the dark to figure it out on your own. Once you find out how to wire everything, the timers work as intended. It just shouldn't have to be so difficult to find instruction. UPDATE: the timer does not work when temps drop below freezing. So if you're going to use this outdoors or somewhere unheated, it may give you trouble. I guess I had it right at 1 star!

Worked great for my project. Was easy to understand and connect Should work for quite some time

I purchased a total of 4 of these timers. The first one failed after two days. The other three failed immediately, with a crack and the smell of burnt electronics. I verified the power supply voltage and polarity, and my wiring. I purchased two more identical units with a different brand name, the first one also failed. I redesigned my project to reduce the voltage from 24vdc to 12vdc and the last one has been working for a day so far. These are rated for up to 30vdc, so that should not have made any difference. My theory is that these are possible the 5V versions, miss-labeled or packaged. Or perhaps, there has been some batches of defective units. I am an engineer and I am very careful with my designs and builds...

This is the JZ801 programmable relay module. This vtext has five sections: 1. An overview of what the product does 2. How to wire the module 3. A painfully detailed explanation of how to program the device 4. A description of all seven operating modes and 5. Some operating notes Section 1: The Overview This module is very straightforward. It will turn on an electrical circuit for a given amount of time, and it will turn off an electrical circuit for a given amount of time. These times can be as short as a tenth of a second, or as long as 16 hours and 39 minutes. The device will allow you to cycle between the timed on and off states up to 999 times, or infinitely if you prefer. There's also a user-supplied push-button trigger involved whose function varies based on the selected operating mode, or you can substitute a 3-24V trigger signal to do the job of the push button. The electrical switching is provided by a relay and these three terminals. In the OFF state, the center common terminal is connected to this normally closed terminal, and in the ON state, the center common terminal is connected to this normally open terminal. You can power the device using either a Type-C or micro-USB connector, or you can power it using anywhere from 6 to 30 volts of direct current. The device has a diode that prevents damage should you confuse the positive and negative leads of your power supply. The digital display normally stays on constantly, but has a "sleep mode" option that will turn off the display after 5 minutes while the device continues to operate. Section 2: Wiring Let's take a look at how to wire this module. You can supply power to the device by using a USB cable plugged in here, or you can use anywhere from 6 to 30 volts of direct current, positive connected to this terminal, negative to this terminal. In most operating modes, you'll need a way to trigger this device. That's simply a way of saying, "Start now." This trigger can be as simple as a push button or as complex as a high level trigger signal source. Let's keep it simple with a momentary contact push button trigger. A neat and tidy way to do this is to insert a small jumper cable between the system ground here and the trigger ground here. Then connect your push-button trigger between the positive power terminal here and the trigger terminal here. If you're not happy with this jumper cable, you can remove it and simply short these two contacts directly on the printed circuit board. If you want to use a high-level trigger signal source, a momentary 3 to 24 volt trigger can be applied between these two terminals. The wiring on the relay terminals will be quite dependent on your specific project, but I'll show you how I wired my test stand to experiment with this module. I have a 6V power supply here, and I have a red indicator light connected to the off or normally closed terminal, and a green indicator light connected to the on or normally open terminal. I'm keeping it simple with the jumper cable and momentary contact push button trigger shown here. We'll be using this test stand when we get to the section explaining the 7 operating modes. Section 3: Programming Assuming you have your module powered and ready to go, here are the steps required to get this device programmed. First, we need to define some terms. Press and hold for 3 seconds. Means just that. Press the button for 3 seconds, then release. Pressing and holding for less than 3 seconds will end in an unwanted result. Short press means to short press the button just long enough to make electrical contact. Long press means to press and hold the button while watching the display. Doing this at the right time will prevent you from having to press the up or down button hundreds of times when you're working with large numbers. There are four primary settings that need to be programmed. First, you need to select the operating mode. I'll explain the differences between modes in the next section. Second, you'll need to program the relay on time. Logically, this is called OP. Third, you need to program the relay off time. Of course, this is called CL. Finally, you need to program the number of on/off cycles you'd like. Naturally, this is called LOP. In order to make sense of all this, we need to begin with a common reference point. Let's get started. Power up your module. The display should flash the letter P followed by a one or two digit number. This is flashed three times, then replaced by three zeros. These three zeros indicate the module is ready to start its on/off cycle with your trigger. Short press the stop button. One of two things will happen. Either the display will flash off for a few seconds, which is bad, or it might flash on for a few seconds. This is good. If the display flashed on, leave it alone. If it flashed off, short press the stop button one more time to see the coveted on display. When you're ready to use this module in your project, this is one way to keep the module powered, but deactivate the relay. Next, we'll need to select one of seven operating modes. Again, I'll explain the differences later, but for now, we're going to use mode 3.1. Press and hold the Set button for three seconds. The display will show the letter P followed by a one or two digit number. This is your operating mode. Short press the Up or Down button to cycle through the seven modes until you get to mode 3.1. Short press the Set button. The letters OP flash three times, followed by a three-digit number. This is the length of time the relay will be on. Short pressing the Up or Down button at this point will increment the display one digit up or down. Long pressing the up or down button will have the digits increment at high speed. Very convenient when working with large numbers. For now, we want the display to read 004. If the display reads 004 decimal, it means the relay will be in the on state for 4 seconds. Short press the stop button. If the display reads 00.4, it means the relay will be in the on state for 4 tenths of a second. Short press the stop button again. If the display reads 0.00.4, it means the relay will be in the on state for 4 minutes. Let's keep it simple and keep the display at 00.4 for a 4 second on time. Now, short press the Set button. The letters CL flash three times, followed by a three digit number. This is the time the relay will be in the off state. Using the same short and long presses on the up and down buttons, set the display to 006. Then, short press the Stop button as many times as necessary to make sure we're working with a six second duration, with the decimal appearing only at the end of the display. Now, short press the Set button one more time. The letters LOP will flash three times followed by a three digit number or three dashes. This is where you set the number of times you want the relay to cycle through the on/off functions before stopping. Setting the display to three dashes will cause the relay to cycle forever. Setting the display to 003 will cause the relay to cycle three times, then stop. The relay will always stop in the off state. Now press and hold the set button for three seconds. If we did this right, the display should flash P3.1 three times, then display three zeros. This means the module is ready to be triggered to start by using your trigger button or trigger signal from an external device. You can see at a glance what your timer settings are by giving the Set button a short press now. The display will cycle through the on time, the off time, and the number of cycles before returning to the 000 ready to trigger state. Some things to consider: Some operating modes do not use a relay off time. When programming these modes, the module will not permit you to enter an off time. Any off time left in the system will be ignored. Of course, without an off time, there's no need for a cycle time, so that setting won't be available during programming either. Some operating modes have an on and off time, but no cycle time. Operating mode 3.2 does not need a start trigger. When using Mode 3.2, make sure that whatever is connected to your module is safely powered down to prevent an unintentional start. Section 4. Operating Modes There are seven operating modes. Here's how they work. Mode P1.1 has an ON time only. When triggered to start, the relay will immediately turn ON for the set time, then turn OFF ready to be triggered again. The module will ignore any trigger button pushed during the ON time. Mode P1.2 has an ON time only. When triggered to start, the relay will immediately turn ON for the set time, then turn OFF ready to be triggered again. If the trigger button is pressed during the on state, the relay will remain on and the on timer will be restarted. Mode P1.3 has an on time only. When triggered to start, the relay will immediately turn on for the set time, then turn off ready to be triggered again. If the trigger button is pressed during the on state, the relay will immediately switch to the off state, reset the timer, and is ready to be triggered once again. Mode P2 has an on time and an off time, but no cycle option. When triggered, the relay will remain in the OFF state for the programmed OFF time, then switch to the ON state for the programmed ON time, then return to the OFF state, ready to be re-triggered. The module will ignore any trigger button push during the OFF state. If the trigger button is pushed during the ON state, the OP timer will continue to run, but the relay will immediately switch to the OFF state. When the OP timer is completed, the module is ready to be triggered again. Mode 3.1 has an On Time, an Off Time, and a Number of Cycles setting. When triggered, the module immediately switches to the On state for the On Time, switches to the Off state for the Off Time, and continues this action for the programmed number of cycles. If the trigger button is pressed at any time during these cycles, the relay will immediately switch to the off state, ready to be restarted with the full number of cycles. Mode 3.2 has an on time, an off time, and a number of cycles setting. When powered, the module displays the mode number for 3 seconds, then switches to the on state for the on time, switches to the off state for the off time, and continues this action for the program number of cycles. The start trigger is completely ignored and has no effect in this mode. Be aware that this mode will energize any connected devices without a trigger button push. Mode 4 has an on time only. When triggered, the relay immediately switches to the on state for the on time, then switches back to the off state ready for another start trigger. If the trigger button is pressed at any time during the on state, the relay will remain in the on state and restart the on timer. Section 5: Operating Notes When the module is not being programmed, you can set the option for the Display Sleep Mode. The Sleep Mode will turn off the display after 5 minutes but keep the module in operation. To use this feature, press and hold the Stop button for 3 seconds. When you release the button, the display will read "OD" or "CP". Clearly, OD indicates the display is always on and CP indicates the display will go to sleep after 5 minutes. Press and hold the stop button for 3 seconds and release until your desired option is displayed. As a safety feature, short pressing the stop button during the operation of the module will immediately bring the relay to the off state and keep it there regardless of the operating mode. However, the on and off times will continue to run as will the cycle count. Short pressing the stop button again will resume the active on/off state and cycle count. If you short press the Set button during the operation of the module, you'll get a quick display of the on, off and cycle count if applicable, but the timer that is currently in use will pause. It will resume counting only when the display returns to that timer. A warning again about operating mode 3.2. This mode does not use a trigger and will power any connected equipment three seconds after the module is powered on. If you need to set a programmable time greater than 500 seconds, long press the down button for a quick ride and reverse from 999. My wild guesses on what the module letter codes actually mean. The relay on time is labeled "OP". I think "OP" could mean that the relay common terminal is now connected to the normally open terminal and therefore is in the on state. The relay off time is labeled "CL". i think cl could mean that the relay common terminal is now connected to the normally closed terminal and is therefore in the off state the number of cycle setting is labelled lop i think lop could stand for length of program or loop The Display Sleep option is labeled CP. I think CP could stand for Conserve Power. The Display Always On option is labeled OD. I think OD might stand for Ordinary Display Mode. Being on the spectrum requires that I try to make sense of this stuff. I hope this video helps you make a decision on whether or not this is the right module for your project and eases the learning curve on the programming front.

Funciona bien

I have a bunch of animated Halloween decorations with the dreaded sound sensors that don't work for 💩 I wire the Try Me plugs into the relay and set them up to trigger them every minute or so. I use the P3.2 settings for this purpose. The programming instructions are in the product description.

Instruction are on you tube and are confusing but works

Handy little circuit, once you figure out how to set it up. Thankfully there is a video out there somebody made. Only issue I have is the terminal blocks. So difficult to connect anything, they don't expand much, and are hard to tighten to the wires unless you are using a single solid core wire.