- Today I ruined my desk: so that does not happen to you, put a protection on your desk. The NiChrom vaporizes and crumbles into tiny, small beads that burn into the surface!
- We work with a high, lethal tension and go to the limit of the relay - think about what you are doing!
- Having a fire extinguisher handy in case of an emergency.
First of all, I put together a circuit that powered a 12V fan with the usual jumper wires (without the yellow cable via JST) and a 12V power supply. Please look at the control of the relay via D4 (here you are in the 5V circuit of your photon on the way). On the opposite side, an independent circuit of 12V is switched, which drives the fan (or something else).
You can also drive a fountain or water pump your aquarium.
Use the same code, but change the power supply to 220V/10A (beware of danger to life) and the jumper wires: swap the thin jumpers on the side of high Voltage for jumper wires, which tolerate the higher voltage (otherwise you get 2 puffs of smoke).
U = R * I
Volt = Ohm x Ampere
230 = 2 x 115
You can also try to ignite the NiChrom wire through the 12V: except for a noticeable heat, but does not cause ignition.
I found an old lamp cable with an additional switch.
You can set up your fireworks within the range of your wifi and ignite using your photon: also several ignitions of sparklers or all sorts of colorful fireworks (currently not yet available). In my experimental setup, sparking a sparkler sufficed: Guys, do not do rash things with it - protect your eyes and do not light cigarettes with them.
Within a few milliseconds, the NiChrom wire - cut one hand from the 10-meter roll and wrap it around the sparkler or detonator - will be hot and fizzy: that's enough to ignite the sparkler.
I save you at this point the much too long video in which a sparkler actually burns (The hackster-Team will thank me, that I do not exhaust his storage capacity).
Let people freeze New Year's Eve outside: You release your prepared fireworks from inside via Blynk. To do this, simply drag a Button widget that costs 200 Energy Points to the otherwise empty Blynk app and take the authorization code into the firmware to be flashed in the marked place.
I'm going to look for another table and I'd rather organize this kind of project in the open air. Wish everyone a Merry Christmas and a Happy New Year!