Introduction: DIY RC Fireworks Ignition System

This Instructable will show you how to make a safe remote controlled fireworks detonator that reduces accidents like skin burn and accidental explosions. Every year hhere in the Philippines All you need is $10, 30 minutes of time, RC Car, Chopsticks, 6 volts VRLA battery, Wire and a Container. Please rate this as a 5 star. Have a Happy New Year.

RC detonator - Circuit that allows you to ignite fireworks without using a match. Just press the button on the remote and the fireworks ignites

There is a video at the last page "it was really fun.
Me and my father had a great time.
We had a lot of fireworks.

Step 1: Things to Buy

The materials needed for this project.

Step 2: Schematic Diagrams

These are the diagrams.
- Diagrams for begginers 1st picture.
- Web diagram 2nd picture.
- Schmeatic diagram for experienced optional .
 a. Receiver 3rd picture.
 b. Transmitter 4th picture.

Step 3: Disassembling the Car

Disassemble the car with a screw driver.

Step 4: Getting the Circuit

Take of the circuit, or you can make one.

Step 5: Making the Antenna

Wind the antenna wire around the chopstick.

Step 6: Connecting the Circuit to the Relay

Take of the motors a replace the motor wirings with a relay.
Some cars are not powerful enough to detonate so I added mine a relay.
Adding a relay prevents the circuit from burning.

Step 7: Making the Coil

Use a thick wire for this but not too thick or else it will not burn just use the right thickness that your battery can burn again and again. Use a screw driver to wind on the screw driver. After making the coil epoxy it to the tip of a chop stick and connect a thick coated wire.

Step 8: Connecting the Battery and the Coil

Connect the Battery, Coil and Relay in series.

Step 9: Glue It

Use a glue gun or epoxy to tuck everything in place.

Step 10: Testing It

Turn on everything and press the accelerate button at the remote the coil should become red without melting.

Step 11: Done

Have FUN !   :)
Please rate it 5 stars.

Step 12: Here Is Our New Year Celebration With the Detonator (It's Fun)

The coil can be use more than 100 times. Just don't press the remote to long
(just only 10 sec. max) or  it will burn the coil. Sound fun doesn't it. I'm with my father celebrating new year with it we even use it for a fountain fireworks.


ASCAS made it! (author)2010-05-05

The relay can be found anywhere one example is radio shack.
The relay depends on the RC circuit or RC car's output voltage, I tested my RC car output voltage using a digital tester and the reading was 5 Volts so I used a 5 Volt relay.

Try to read more books or search in the Internet. I am 12 years old but i know a lot about electronics i already built 9 original circuits and about 210 circuits for experimental use or modification but only 136 worked. But i dont post to much instructables becuase i am not good with designing Casings for my projects most coverings look bad but they work pretty well.

agishero made it! (author)agishero2013-09-26

Dude! You're just like my clone. Everything is same except the age !

ASCAS made it! (author)2010-09-30

Its kid. still 12

herbert1982 made it! (author)2010-09-29

that was great, thaks a lot men

watch81 made it! (author)2010-06-27

looks like a lot of fun.. i gotta try this one

bugmenot5 made it! (author)2010-05-23

Wow cool you must be a brainy dude. i will recomend some people to try this. But i am sure this will work. thanks dude

icekid made it! (author)2010-04-26

Cool it's easy to make, cheap and effective.
Hey everyone try this it works.  !!!!!!!!!!!!!!!!!!!!!!!

troseph made it! (author)2010-04-26

Cool idea.

harshilanand39 made it! (author)2015-10-03

and my helicopter circuit gives 3.7 v output so which relay to use

harshilanand39 made it! (author)2015-10-01

plzzzz anyone help me

harshilanand39 made it! (author)2015-10-01

also I am using a rc helicopter circuit which takes only 3.7 v so if I add a 5v relay from the circuit board.....does it will burn the circuit???and If I use 9 v battery to relay does it will burn the relay??

harshilanand39 made it! (author)2015-10-01

plz reply fast.....I stay in India and diwali is coming here so I am excited to make it

harshilanand39 made it! (author)2015-10-01

instead of 6v rechargeable battery

harshilanand39 made it! (author)2015-10-01

I have a question - can I use a 9 volt battery instead of that

blukelaser made it! (author)2014-09-26

i made some changes to ignitor

Hawk-Eagle made it! (author)Hawk-Eagle2015-08-08

How could you make the ignitor ?

The piece which ignites the fireworks fuse ?

apedregon made it! (author)2014-05-02

Does the circuit board come with a small battery pack like that? Mine is by itself with only the wires to the motors unless I'm missing something. Also would you need the smaller battery pack when you have the 12V anyways?

apedregon made it! (author)2014-05-02

Does your circuit need to come with a small battery pack like that? My circuit is alone after I removed it unless I'm missing something about it?

dabu tesla made it! (author)2012-11-04

Hey,I am making exactly the same thing to ensure safety and convenience this Diwali...I am using a small piece of nichrome wire as the igniter.

ASCAS made it! (author)ASCAS2012-11-05

Yeah, me too. I got the nichrome wire from an old heating element of my old soldering iron.

monkhm made it! (author)2011-01-16

You could just use a normal model rocket igniter :P

octopus5650 made it! (author)octopus56502012-06-27

wheres the fun is that?

pastaking made it! (author)2011-10-30

I hate being a killjoy, but this is really dangerous. The reason RC cars are on 25/40mhz is because this frequency is not used by anything else, due to interference. I'm telling you, this WILL accidentally go off occasionally.

I'd suggest using a modified wireless camera trigger, as these have 100m+ range, ~0% interference, and are less than £15. (About $25). They are also much smaller, and have the power in them to trigger an e-match easily. Not sure if they would trigger your ignition system, but it is still safer.

On the other hand, Great 'Ible! I love to see household items repurposed! I built something just like this when I was about 8, to trigger FX charges. (Basically over-volting little capacitors). Safer than fireworks, so I did not care too much about the interference.

ASCAS made it! (author)ASCAS2011-11-01

Interferances can happen, I believe in what your saying. In my newer verion I had used an infrared RC circuit.

ASCAS made it! (author)2010-04-29

You can buy a relay in radioshack. A relay is a electronic switch like a transistor but the only difference is that the relay can handle higher voltage and ampere to pass through it.

sngehl01 made it! (author)sngehl012011-10-06

that is not entirely true. a relay can handle AC voltages while transistors can not, a transistor switches more quickly than a relay, a relay produces voltage spikes due to the coil, transistors operate on less current, if a relay burns out, the circuit stops, if a transistor burns out, it could produce and electrical short,there are quite a few differences, and each serve a purpose, plus, transistors are much cheaper. A TIP120 has a collector emitter voltage of 60 and a collector base voltage of 60. The base will take up to 5V. You could very well make a transistor driver circuit for this, but what you did works very nicely. Good work!

electrokid made it! (author)2011-09-26

Cool idea.
Hey try using nichrome wire-draws alot less current than copper

nathanielg made it! (author)2011-03-24

I am also great in the electronics area and i am 14. But i noiced one flaw in your system. If any other person is using the same frequency( in a walkie talkie, or another rc car) you will have premature or unwanted detonation of your system. this could result in a injury or worse... so i just wanted to warn you about that..... But great instructable and thank you

pastaking made it! (author)pastaking2011-08-02

Ditto. Try using a 2.4ghz TX/RX combo, or have two on different frequencies and wire them to relays connected in series so both have to be driggered to detonate the target.

HamenChips made it! (author)2011-07-04

We have the same screwdriver

ASCAS made it! (author)2011-03-28

Yeah but in my 2nd version of this i added a 2.8 ghz remote from a old rc helicopter :)) so the only thing that might trigger it is my wifi or my cordless phone. I recomend for you to use a rc car with a special frequency.

charchar97 made it! (author)2011-01-11

so, im too lazy to post an instrutable, but i just used the smallest PIECE of wire that i could find and used four 1.5v batteries.

Avatar_I_Am made it! (author)2010-12-30

12? TWELVE years old?! OMG, I'm... much older... but I ain't got near the smarts that you do!
Bravo, Lad! Well Done!
Now, how much do you charge for tutoring...

oldmanbeefjerky made it! (author)2010-11-29

heres a smarter idea, get a signal relay card kit from an electronics store, then modify it by making the input signals resistors values realy low (just use weaker resistors), that power the relay switch, so you can switch high currents and voltages withsignals from 6v at below 1 miliamp. also, use a garage door opener kit, which comes rebuilt, form china costs $10 after shipping, and can transmit a signal for up to 300-400m.
use it instead of a r/c car remote and controller for 2 reasons.
1. its super weak
2. anyone else can control it because its on a universal toy car band (27mhz or 40mhz)
even walkytalkys use that band and will detonate your fireworks.

ASCAS made it! (author)2010-07-09

Yup! Other RC devices cannot provide enough power to burn the ignitor, like mine. So I added the relay

the mechanical engineer made it! (author)2010-07-02

nice ible, but i have one exactly like it accept without the relay.

A.J. made it! (author)2010-05-03

yeah, where did u get the relay? what is the trigger voltage? can i get bigger ones (for 120v)?

imakethings made it! (author)2010-04-29

take any 5v realy. but tou will get limiled range with this RF module.look fort aeroplane R/F modules.

chaoschao99 made it! (author)2010-04-28

 what type of relay is this and where, and how can i buy this, what would i search on google. it would be a huge help if you could just tell me the exact name of the relay. thanks alot

chaoschao99 made it! (author)2010-04-28

 so whats a relay and where do i buy one?

budsiskos made it! (author)2010-04-26


About This Instructable




Bio: Hi I'm Angelo! I am a 18 y/o college sophomore taking my majors in BS-ECE at the DLSU. I use my course as ... More »
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