Exothermic Task

[PM2017]

Are matches allowed? My idea was to have kanthal or nichrome wire wrapped around a piece of a match, so that when the circuit is activated, the wire would get red hot and ignite the match, emitting light for a few seconds, which would then activate an LDR in a separate circuit.

Yes they are. Just be careful to make sure it complies with the FAQ here: https://www.soinc.org/mission-possible-1

[Rezalis]

For this task, I'm just using a G4 Halogen bulb, a photoresistor, a TIP120 transistor, and an Arduino. It has been working reliably since December and has run consistently hundreds of times. I highly recommend this method, because it's easy to do and it is very unlikely to fail.

[JordanPro]

If the only requirements of this task involve an exothermic action and light, could one use an incandescent flashlight to shine on a photocell in order to activate the next action? Since incandescent bulbs actually produce heat as opposed to a LED.

[terence.tan]

If the only requirements of this task involve an exothermic action and light, could one use an incandescent flashlight to shine on a photocell in order to activate the next action? Since incandescent bulbs actually produce heat as opposed to a LED.

Yes you can. I think thats how everyone else is doing it

[erico.vert]

For this task, I'm just using a G4 Halogen bulb, a photoresistor, a TIP120 transistor, and an Arduino. It has been working reliably since December and has run consistently hundreds of times. I highly recommend this method, because it's easy to do and it is very unlikely to fail.

Could you explain how you did this? I'm very new to arduinos but I feel like it's the best and most reliable way of doing this task

[LIPX3]

For this task, I'm just using a G4 Halogen bulb, a photoresistor, a TIP120 transistor, and an Arduino. It has been working reliably since December and has run consistently hundreds of times. I highly recommend this method, because it's easy to do and it is very unlikely to fail.

Could you explain how you did this? I'm very new to arduinos but I feel like it's the best and most reliable way of doing this task

Very simple code, you can find examples of how to use a photocell and an LED on Arduino online. A low-voltage light bulb will work in an identical way.