Most of the dryer monitors that I've seen rely on vibration or power consumption monitors. I've got another idea...
I have a small fridge next to my dryer and I've wired up a DS18B20 that I intended to run into the fridge, but haven't gotten around to it. The code is written and it is functioning. The code uses a requests.post to a URL that sends the temperature to my phone every 10 mins, using AutoRemote messaging and Tasker (Android only app). I noticed that the temperature is reporting higher during dryer operations, since the probe happens to be laying next to the dryer's exhaust duct.
Why not just stick that sensor through the dryer's exhaust duct and have that temperature be the indication that the dryer is still running? When the dry cycle is done, the temperature will drop.
Another idea that I have not seen is to wire a relay to the motor's power so that if the motor is running, the relay is closed. When the motor stops, the relay goes open. The Pi could see this as a switch and use that state change to trigger whatever alarm the user chooses.
Just my 2¢.
I have a small fridge next to my dryer and I've wired up a DS18B20 that I intended to run into the fridge, but haven't gotten around to it. The code is written and it is functioning. The code uses a requests.post to a URL that sends the temperature to my phone every 10 mins, using AutoRemote messaging and Tasker (Android only app). I noticed that the temperature is reporting higher during dryer operations, since the probe happens to be laying next to the dryer's exhaust duct.
Why not just stick that sensor through the dryer's exhaust duct and have that temperature be the indication that the dryer is still running? When the dry cycle is done, the temperature will drop.
Another idea that I have not seen is to wire a relay to the motor's power so that if the motor is running, the relay is closed. When the motor stops, the relay goes open. The Pi could see this as a switch and use that state change to trigger whatever alarm the user chooses.
Just my 2¢.
Statistics: Posted by duckredbeard — Tue Dec 10, 2024 2:34 pm