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Building an IoT badge with ESP8266 & ePaper

An IoT Swiss Army Knife built using an ESP8266 + ePaper…

Hi Craig Cole,

Interesting application!

It sounds like the AA batteries provides power to create the spark, so you would probably need a relay between the AA batteries and the mechanical gas switch (with the switch always in the ON position). You could use smaller DC relays (mechanical or solid…

Glad you liked the article!

Regarding the relay, if you are driving small loads then it should be fine without a heatsink. As anecdotal evidence, I use mine to drive 3 x LED bulbs (8.5 Watt each x 3 ~= 25 Watts) daily and the relay is cool to touch. In your use case, it will depend on how long the Christmas lights are (how…

Building Your Own Midi Fighter

Build Your Own Midi Fighter Music Controller