relays
Tuesday, June 27, 2017, 06:00 PM
The super glue worked great overnight. My relay board is solidly glued down in the garage door monitor. I wired it up and the ESP didn't even boot. I added a driver transistor from some info I googled and the info was totally wrong. I put another relay and Huzzah on a breadboard and played with it. Found out to turn the relay on requires grounding the input to the relay board. About 1.6 ma flows when doing this as measured by my multimeter. I put a 4N32 optoisolator into the breadboard and chose some resistors large enough to still work while keeping the idle current down. The opto output has a 2K and the input has a 200 ohm. The relay switches reliably now. I put this circuit into the garage door controller and it works well with MQTT packets. Now i need to be able to supply config info via MQTT.
For dinner we had a new Cooking Light recipe, Chicken and Dumplings. It used a chicken breast along with bag of frozen veggies, flour tortillas and chicken broth plus a few very mild spices. It was another winner from Cooking Light and is now added to the recipe file. The hits keep coming.
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