One of the sensors that I previously built lives in my 'mudroom/utility/mechanical' room. The new sensor there now looks for motion and turns on lights. The door has a sensor of its own that triggers security as well as lights. Hope to add temp and air sensors.
Going to start a new project which will add functionality to the mudroom node to be able to control the hot water heater and the well pump. Both are 240v. Use case is:
If I have a HS3 device, I can view/control it remotely with HSTouch. No issue there.
But, this project is going to enter the high voltage arena so extra safety considerations are required. Going to start with the HW heater.
I got two of these devices:
http://www.ebay.com/itm/252368191305
$10 for the two of them. Hot water heater is interesting in that there is no common (white) wire. Just 2 120V legs and a ground. 10 years ago I got an insteon high voltage controller for the HW heater and got stumped when there was no common. Fast forward today, two of these new switches controlled by my underutilized mudroom arduino might work out nicely.
On the breadboard, the UNO as well as the nodeMCU is controlling the devices as verified by onboard LED - but with no load. Since I want them to go on/off at the same time, I am wiring them parallel. Control one, control both.
Anybody have any experience with controlling a 240v hot water heater? Thoughts??
Going to start a new project which will add functionality to the mudroom node to be able to control the hot water heater and the well pump. Both are 240v. Use case is:
- When I am away, why waste electricity to heat water. (ACK potential debate).
- In winter, and this is important, be able to turn off well pump when not home to prevent flooding should a pipe break. Requires turning off hot water heater at the same time for safety reasons. Also needs to turn off water conditioner but already got that covered with an Insteon device.
If I have a HS3 device, I can view/control it remotely with HSTouch. No issue there.
But, this project is going to enter the high voltage arena so extra safety considerations are required. Going to start with the HW heater.
I got two of these devices:
http://www.ebay.com/itm/252368191305
$10 for the two of them. Hot water heater is interesting in that there is no common (white) wire. Just 2 120V legs and a ground. 10 years ago I got an insteon high voltage controller for the HW heater and got stumped when there was no common. Fast forward today, two of these new switches controlled by my underutilized mudroom arduino might work out nicely.
On the breadboard, the UNO as well as the nodeMCU is controlling the devices as verified by onboard LED - but with no load. Since I want them to go on/off at the same time, I am wiring them parallel. Control one, control both.
Anybody have any experience with controlling a 240v hot water heater? Thoughts??
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