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DIY Wireless Fireworks Firing System

An overview of my 100% self-designed and built fireworks firing controller. It can fire 64 independent channels, is powered from commonly available 9V batteries, has a wireless range of up to 500ft, 3D printed enclosure. The microcontroller used on the custom printed circuit board is an ATMEGA328P, the same as used in the Arduino development platform. The remote and field module communicate with each other using a pair of RFM69 radio modules using the 915MHz unlicensed radio band for hobbyist use, all radio messages are encrypted so it's very safe and reliable no worries of any interference from other devices on the same frequency. This firing system is the culmination of 3 years of work and is one of my greatest achievements, I am always improving upon the system and changing the design. Eventually, I'd like to one day sell this as a product, however, currently, it is just a hobby and something fun to do.