Trigger Circuit
177 9
Exosceleton 3 months ago
Hello! I have a problem. I need a wireless transmitter and reciever... So if I press a button that is connected to the transmitter, the reciever will let voltage thru and I can use it to trigger my load. I have asked about this everywhere, but never get good answers. **Why do I need the circuit?** I need the transmitter/reciever to make wireless high voltage generator on/off switch. I got the kit from amazon and want to turn it on wirelessly (I dont know why I want it, but it would be cool) the circuit  needs 2 amps 12v to feed into it. **My point.** Are there any commercial transmitters/recevers out there? Or should I DIY it? If so then does someone know a circuit for it? <br> Things the wireless transmitter/reciever should have: Be as smal as possible. Around 10- 50 meters of range. Be fast (So if I press the button, the other side should instantly let electricity thru). Reciever should tolerate a amps and 12 volts. Thank you for taking the time and reading this topic! (Also I will add a picture of what I was thinking)![Is this possible.gif](//image.easyeda.com/pullimage/CPugQqdjinfIEBQJ6BwXXoQHEdPFwjLhCIxnrYNu.gif)
Comments
andyfierman 3 months ago
If you are using a wireless link to turn a high voltage generator on and off, you need to be **absolutely** **sure** that no RF interference from passing Taxis, mopeds with unsuppressed spark plugs, amateur radio, Citizen Band, radio control, Wifi, mobile phone, lightning strikes, etc, etc, are **ever** going to turn it on. If you want to be able to do this at a range of 10m to 50m then that suggests that you have a very high voltage source that you want to be a long way away from or that you may be doing something with it that you probably should not. In either case the implication is that you may be so far away from the generator that if anyone were to pass near it (a) the may be in danger of electric shock and (b) you may not see them if they do. I may be over reacting but without a lot more information on your project and it's end usage, my advice would be to cease and desist.
Reply
deskpro256 3 months ago
What range are you going for? 10m? 100m? 1km? Are you in a rural area, where you can do anything or are you in a city? You need to think about the things Andy mentioned. One thing I would suggest is something like this: [https://www.banggood.com/Geekcreit-433MHz-DC-12V-10A-Relay-1CH-Channel-Wireless-RF-Remote-Control-Switch-Transmitter-With-Receiver-p-1040721.html?cur_warehouse=CN](https://www.banggood.com/Geekcreit-433MHz-DC-12V-10A-Relay-1CH-Channel-Wireless-RF-Remote-Control-Switch-Transmitter-With-Receiver-p-1040721.html?cur_warehouse=CN) > Remote control distance: about 100 meters in the air, 30-50 meters in the city That would give you a starting point for what to look for. Depending on range and other features, there may be some other that would suit your project better. You could also design your own, that would be a great learning opportunity if you are up for it, but I'd rather just buy something like that.
Reply
Exosceleton 3 months ago
@andyfierman It is not that high voltage! Dont worry  xD (it will not kill you, the best it can do is give you a little burn)
Reply
Exosceleton 3 months ago
@deskpro256 I am going for 10-50 meters... And isnt the link you sen me ment for AC? bc I need DC. And yeah, I wouuld like to design my own, because I have never done anything like that before
Reply
Exosceleton 3 months ago
I need it to ignite a little firework rocket... (and yes. I could do it with only wiress, but I want to be fancy)
Reply
andyfierman 3 months ago
Using wireless to control dangerous loads such as fireworks is very risky. Even if the signalling is very strongly encoded to minimise the risk of false triggering from the transmitter, the receiving and control system must be highly resilient to interference and must have carefully designed fail safes. The design of such systems is not something to approach lightly because a firework going off in your face as someone nearby unlocks their car could be a life-changing "little burn" and the consequences of a failure of such systems can be catastrophic in just about every conceivable sense. That said... The kit that deskpro256 pointed you to is for switching a 30V DC load of up to 10A. So it should be fine with 12V and 2A. The relay also allows switching of an AC load of up to 250V at 10A.
Reply
Exosceleton 3 months ago
@andyfierman So I can just use the circuit deskpro256 pointed out? Or does it only work with AC?
Reply
andyfierman 3 months ago
@Exosceleton, I would recommend that you do not use wireless at all in this application. If however, you are prepared to accept responsibility for any accidents and subsequent litigation that may result from that, then you must study the information, including the full Description, given about the equipment identified by deskpro256 on the website at: [https://www.banggood.com/Geekcreit-433MHz-DC-12V-10A-Relay-1CH-Channel-Wireless-RF-Remote-Control-Switch-Transmitter-With-Receiver-p-1040721.html?cur_warehouse=CN](https://www.banggood.com/Geekcreit-433MHz-DC-12V-10A-Relay-1CH-Channel-Wireless-RF-Remote-Control-Switch-Transmitter-With-Receiver-p-1040721.html?cur_warehouse=CN) and decide for yourself if it is suitable for your purposes. The Description (the manual) says that the unit operates from 12V DC and can switch a load of 10A. It appears to be able to switch a load that is isolated from the 12V supply to the unit but looking at the photos of the PCB it clearly has insufficient creepage and clearance distances for operation at voltages much above about 30V DC and is absolutely unsafe for use with mains voltages. <br> <br>
Reply
Exosceleton 3 months ago
@andyfierman okay
Reply
Login or Register to add a comment
goToTop
你现在访问的是EasyEDA海外版,使用建立访问速度更快的国内版 https://lceda.cn(需要重新注册)
如果需要转移工程请在个人中心 - 工程 - 工程高级设置 - 下载工程,下载后在https://lceda.cn/editor 打开保存即可。
有问题联系QQ 3001956291 不再提醒
svg-battery svg-battery-wifi svg-books svg-more svg-paste svg-pencil svg-plant svg-ruler svg-share svg-user svg-logo-cn svg-double-arrow
We use cookies to offer you a better experience. Detailed information on the use of cookies on this website is provided in our Privacy Policy. By using this site, you consent to the use of our cookies.