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I'm glad to see your question. Many people have the same question as you. So I made a long video to explain the working principle in detail using motor control as a demonstration. Link: czcams.com/video/o7SbTBAeAlU/video.html This should answer your questions. If you still don't understand, you can ask further questions. I hope it can help you.

I am happy to answer your question. Here I need to explain a basic doubt to you. The distance of remote control is related to two factors. That is, the transmitting remote control and the receiving controller. If both are good, the distance is very far. If one is poor, the distance will be affected. Therefore, I can't answer your question accurately because I don't know how your receiving controller is. I can only provide our data for your reference. If you use our receiving controller, it can reach 100 meters in an open space; in a general office environment, it is also about 50 meters. I hope to solve your problem and look forward to follow-up feedback.

If you are talking about the soldering iron, I recommend you to look at the first-line brands in China, which are very cost-effective; if you are talking about the module with the replaced antenna, then you can look at this MTD12A-4 DC3V 5V 6V 9V 12V 18V RF433 remote control DC motor forward and reverse module mini size PCB forward rotation reverse controller board switch : qiachip.com/products/mtd12a-4-dc3v-5v-6v-9v-12v-18v-rf433-remote-control-dc-motor-forward-and-reverse-module-mini-size-pcb-forward-rotation-reverse-controller-board-switch?variant=40659126714438&currenc y=USD&srsltid=AfmBOoo9VzPGazpxuCT3wZ3LE954BZxQo5TNyRSj_oFRuhlYRMwYHFb6VKA&YT3-Fv1afO_KnurmJFXqyuyn71_kdNS--QS6Ki3SdRJ-lW9nbP8XyAHUJZ5NTsW8A3qX2KJIf9kFItY7P6A&UCcv-i14aTz_Od9i04-aN9VQ&

Are you asking what the whole circuit board is made of? The name of this product is Universal 433Mhz Remote Control Wireless Switch DC 12V 24V 72V 30A remote relay on off use for Smart home appliances Light The model is KR7001 The link is qiachip.com/collections/all-products-1/products/universal-433mhz-remote-control-wireless-switch-dc-12v-24v-72v-30a-remote-relay-on-off-use-for-smart-home-appliances-light-kr7001 The whole product circuit board consists of two parts, one is the step-down module, and the other is the 433 remote transmitter module I hope it can help you. If it is not the answer you want, you can ask further questions and I am very happy to answer them for you

Oh, you found something good. This is a tool we developed to view the content of RF signals. The name is QIACHIP Multifunctional RF Remote Control Signal Decoder. The link is qiachip.com/collections/qiachip-tools/products/qiachip-multifunctional-rf-remote-control-signal-decoder-rx480e-tx118sa-rx480e-tester-1527-2262-hcs-ht-rolling-code-tester The method of use is very simple, and you will know it at a glance.

If I were an ordinary person, I would be attracted by beautiful pictures or quiet sounds; if I were a DIY enthusiast, I would be attracted by the way and order of wiring; if I were a person with ideas, I would be attracted by the lights that can be controlled by remote control. What kind of person are you, and which part will you be attracted to?

​@@qiachipтак тут ничего особенного. Просто подключение блока управления светом по схеме.

Yes, you are right, even though my video is so blurry, you still found it！

The one that displays the value is our proprietary product, the decoder link: qiachip.com/collections/all-products-1/products/qiachip-multifunctional-rf-remote-control-signal-decoder-rx480e-tx118sa-rx480e-tester-1527-2262-hcs-ht-rolling-code-tester The remote control that transmits the signal is a 12-button one, you can search it online, but each manufacturer has different settings, and the code value may not be the same as ours. The link to the remote control with the code value in our video is: qiachip.com/products/12-channel-12buttons-key-rf433-wireless-remote-controller-radio-controller-transmitter-receiver-fittings-433mhz-dc-12v-receiver-1527-code I hope I can answer your question and look forward to your follow-up feedback

Now that you put it that way, it really is just like what you said!🤣

Oh, that's not right. The garage door has the function of up and down, that is, forward and reverse. If your garage door is equipped with a controller, the controller will convert the voltage to 12V or 24V . You can watch this video: czcams.com/video/o7SbTBAeAlU/video.html . If your garage door directly drives the motor, then watch this video: czcams.com/video/EQyKgdRzZOE/video.html. It is dedicated to 220V! I hope this helps you, and looking forward to your feedback.

@@qiachip I think I bought the wrong switch 😞 I will buy the 2ch one 220v

I'm glad you're interested in our products. The video shows the frequency of 433MHz. However, our products also include the frequency of 315MHz. Depending on which country you are in, you can choose different frequencies in a targeted manner.

I am glad to answer your question. However, before answering your question, we need to understand some basics. That is, whether the product you purchased is our product. Because the product I demonstrated in my video is our QIACHIP product. Different manufacturers have different settings! If you purchased our product, the problem you raised appears: when you hold those both buttons, there is no beep tone. You can enter the APP to see if it can be matched. If it can, enter the settings and turn on the beep, and then there will be a beep prompt. If holding down the two buttons does not work, you can also turn the power on and off three times to reset it. I hope it can help you and look forward to your follow-up feedback.

@@qiachip what APP should I used?

I am glad to answer your question. Before solving the problem, I will first confirm what you have. 1. You have three remote controllers. 2. You have the product in our video. Because different manufacturers may have different settings, my answer is for our brand of products. For three remote controllers, you just need to set the B mode according to the demonstration in the video. The B mode you mentioned is our Toggle mode. Method: Push the learning key on the receiver twice time, it comes into toggle setting mode. Wait for a moment, the LED will be off, it comes into learning state. Push the remote button, LED indicator on the receiver board will flash then come off. After 3 seconds, the LED indicator will be on again, learning successfully. Just operate the three remote controllers separately, you don't have to worry about mutual influence. Looking forward to your feedback later, I hope to solve your problem.

I am glad to answer your question. Because different manufacturers may have different settings, the operation of the video is for our brand of products. Next, in response to your question, we need to clarify what the failure phenomenon is. This way, we can distinguish the specific problem. For example, if the remote control is copied successfully, but the receiver cannot be operated, it is very likely that the previous remote control has a rolling code, and the copied remote control cannot copy the rolling code, which leads to this problem. I hope to receive your feedback, confirm the brand of the product you purchased, and then describe a more specific phenomenon, hoping to help you solve the problem.