SpudFiles

I found something that is very easy to use as a remote ignition. All you need is a cordless phone, an electric bbq sparker, and two AA batteries. The phone needs to have a page function that makes the phone ring when you push the button on the base.

Take the back off of the phone and cut the wires going to the speaker that is operated by the page button (some have a separate speaker for the page feature.)

Take the battery out of the bbq sparker and attach a wire to the the positive and negative contacts.

Attach the wire from the positive contact on the bbq sparker to the positive side of the battery holder.

Attach the wire from the negative contact on the bbq sparker to the negative wire on the phone.

Attach the positive wire from the phone to the negative wire on the battery holder.

Push the page button on the base and you should get a spark.

Nice one mate. Another good write up Here

Electronics aren't my strongpoint but is there a danger that a signal from something else could set it off?

I remember reading something about Mossad including a contact switch (activated for example by pressure on a car seat) in the circuit of radio controlled bombs in order to ensure they were not set off by some outside source at the wrong time.

jackssmirkingrevenge wrote:Electronics aren't my strongpoint but is there a danger that a signal from something else could set it off?

I remember reading something about Mossad including a contact switch (activated for example by pressure on a car seat) in the circuit of radio controlled bombs in order to ensure they were not set off by some outside source at the wrong time.

Most modern cordless phones have a digital control channel.. Think about it.. When was the last time the handset started chirping on it's own due to a stray signal "setting it off". It's pretty much a non issue with the handset digitally matched to the base. Much of the 2.4 GHZ radio control stuff is the same way. The receivers are digitally matched to the transmitter. Most likely interference will simply cause failure to operate, not unexpected operation.

I remember reading something about Mossad including a contact switch (activated for example by pressure on a car seat) in the circuit of radio controlled bombs in order to ensure they were not set off by some outside source at the wrong time.

I can't think of a way to do this with a cannon because you would have to go and flip the switch. Then the switch would be pointless because you would have to be standing near the cannon to flip the switch.

I doubt that anything else would set it off except for another base that is exactly the same as the one that you are using, and then what are the chances that someone would try to page their phone in the few minutes that the cannon is fueled?

Looks like technology has moved on since the seventies

pat123 wrote:

I doubt that anything else would set it off except for another base that is exactly the same as the one that you are using, and then what are the chances that someone would try to page their phone in the few minutes that the cannon is fueled?

As stated earlier, most cordless phones use a unique ID code and the handset gets the code from the base when first charged. It is unlikely that two phones from the same manufacture will be using the same code number at the same time. The odds are highly against it.

Old analog phones were exploited by carrying a handset in the car and when finding a base on the same frequency, long distance calls were made. Due to this abuse, phone manufactures upgraded the phone security to prevent this. Try it.. Take your handset and cruise some neighborhoods and tell me how many places you can get a dial tone from someone else's base. Nowadays it is highly unlikely to find a match due to the random unique digital code used in the phones.

The same is true for garage door openers. They are digital with a unique number to prevent matches. Old ones were used in burglaries by cruising the streets and looking for doors your remote would open. With each transmitter encoded with a unique number that the door learns in a programming step, the transmitter is unlikely to open any other door on the planet.

Make sure your battery is full!
If the phone starts beeping because of a low-battery the gun will blast away. A safety switch should be in place too.

Nice idea of using a wireless phone, its way better then using any other random RC system, which may pick up noise and go off.

Make sure your battery is full!
If the phone starts beeping because of a low-battery the gun will blast away.

the phone i used died a few times while i was using it. It had a separate speaker that beeped for a low battery. That is a good catch though for other phones.