3 ms·
I would measure temperature directly, rather than continuity or voltage. It's what you really care about. There exist smartphones with ambient temperature sens
by dTal 9y ago
I would measure temperature directly, rather than continuity or voltage. It's what you really care about.
There exist smartphones with ambient temperature sensors; if you already have USB power, this is only a few hours of hacking.
- mikestew 9y agoI would measure temperature directly, rather than continuity or voltage. It's what you really care about. Duh, of course. That's why they don't let me design things. :-) (Though in my defense, it was an "off the top of my head in 500ms" thought.) Plenty of power available, the only issue would be connectivity, as there's about a 50% chance that any festival we go to won't have a cell signal. Which makes me wonder how hard it would be to rig something that sends an APRS message over amateur radio frequencies when a the alarm has voltage, or something. Anyhoo, this is drifting way off topic. If I get around to making something, I'll post a Show HN.