With Canada day and Independence day fast approaching, some makers are looking towards setting up their own fireworks to shoot off in celebration – sure you could use a match or lighter… or you could crack out your trusty Arduino and a cellphone! (translated)
To ignite the fuse, [Oscar] is using a short length of Nichrome wire which is controlled via a Mosfet by the Arduino. To control the Arduino he’s using ArduDroid with a Bluetooth module. The app lets you trigger the various digital and analog outputs, and send and receive data.
Stick around to see a few different demonstration videos of the circuit, testing, and launching some little bottle rockets!
Alternatively, if you need more fireworks you can build a much larger (wired) setup that makes use of resistors burning out to light the fuses.
And as always, make sure you’re launching fireworks where it is legal – many cities have various laws that may change when there is a holiday weekend. Always check first!