I modified the Sonoff Basic to make it for DC 12V.
12V load can be switched on and off remotely.
I tried to ignite fireworks and it worked.

Materials :
1. Sonoff Basic (220V)
2. 7805 Regulator

Fireworks Firing Device Materials
1. UTP Wire (solid wire cable)
2. 0.1mm Nichrome wire
3. Fireworks
* Igniters shown this video cannot be reused.

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