Animated Halloween props are a lot of fun. But the built-in motion sensors usually don't work very well (especially in low light conditions). There are a lot of times when it would be much more fun to be able to control these props with a remote control. That way you could set them off exact when you want them go off and actually scare people. So I worked out a simple way to activate Halloween props with a remote controlled relay. Here is how to make it.

Step 1: Materials

Here are the materials and tools that you will need to complete this project.


Halloween Prop with a "Try Me" button

Remote Controlled Relay

12 Volt Battery Pack

Battery Connector



<p>That's cool, remote control and creepy ...hah </p>
I like it!
<p>very helpful ! Halloween is soon coming !! :) Im following ur videos now :) </p>
<p>Interesting </p>
<p>Hmm correct me if I'm wrong but isn't a 12v powered relay overkill for a prop where all you are doing is simulating a button press? There has got to be a simpler way to do that. I feel like the relay cost twice as much as the prop in this case. Anyway, I LOVE the idea of being able to remotely control the props, thanks!</p>
<p>Well it is, but you can find both the remote and the receiver board with the relay as a kit on <a href="http://www.ebay.com/itm/DC-12v-10A-Relay-1CH-Wireless-RF-Remote-Control-Switch-Transmitter-Receiver-GA-/181849397341?hash=item2a5711985d" rel="nofollow">eBay</a> for just 4&euro; (with free shipping). Even if you design your own receiver board with a transistor instead of a relay it'll most likely cost you more than that.</p>
<p>Thanks, my electronics knowledge is fairly rudimentary. So I was asking partly for cost reasons and partly for my own understanding. I'd be interested to see how this could be done with a transistor, all costs aside.</p>
<p>If you want to design something yourself the easiest way to go is by using a simple RF transmitter / receiver kit like <a href="http://www.ebay.com/itm/433Mhz-RF-transmitter-receiver-link-kit-for-Arduino-ARM-MC-U-remote-control-GA-/201416318194?hash=item2ee5591cf2" rel="nofollow">this one</a>.</p><p>But <br> to control the RF transmitter and receiver modules you will also need <br>two microcontrollers (e.g. two Arduinos). The one microcontroller is <br>going to have a momentary switch attached to it and when you push it, it <br> will send a specific Byte through the UART to the RF transmitter <br>module. On the other end the receiver module will receive the Byte, and <br>it will send it to the microcontroller through the UART. The <br>microcontroller which is on the receiver end will then check if the <br>received Byte is the expected value, and if it is it will turn on the <br>transistor that controls the skull. It is basically just wireless serial <br> communication.</p><p>OK, this was the easiest way to do it but it also <br>requires using two microcontrollers because the wireless transmitted <br>signal is digital and that will raise a lot the total cost of the <br>project. For something so simple I think an analog solution is all you <br>need. It will be more cost effective but it's also going to be more <br>complicated. By doing some Googling I found an interesting article about <br> how to build a <a href="http://www.brighthubengineering.com/diy-electronics-devices/77457-make-a-simple-wireless-remote-control-switch/" rel="nofollow">simple FM switch</a>, you should definitely check it out.</p>
It is a little overkill. But those are just the parts that I had easy access to. 12V is a convenient rating because it is easy to find AC power supplies that can power it.
<p>That's so cool! Nice idea :)</p>
<p>Definitely this will give a heart attack to old and weak people. Nice work. Don't scare anyone.</p>
Ha ha ha, this is really funny :) :D. Awesome idea!!

About This Instructable




Bio: My name is Jason Poel Smith I am a Community Manager here at Instructables. In my free time, I am an Inventor, Maker, Hacker, Tinker ... More »
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