Hi all,
After getting a daugther and all the gadgets she needs to "survive" we also got a bottle heater. My creative mind started thinking out of the box to see what else I could do with that and soon the "perfect boiled (no not green) egg" came in sight. Problem however is that the bottle heater we got doesn't maintain a constant temperature, and even worse: you can only select 4 temperatures: way to cold, to cold, to hot and boiling.
As the idea didn't leave my head I started thinking about the Raspberry Pi and the Heatermeter. As the HM is already equipped to do a similar job (checking temperature and adjusting it if needed) I came to the conclusion that that would be the way forward. I did some research to find a 5V heating element that I could safely drop in the water but couldn't find one that fitted the idea. So now I was thinking about using the fan-out to control a relay switch that will start/stop a heating element. That way I can keep the HM hardware intact for my BBQ's.
Problem is that the fan mode is incrimental and I figure that a relay switch will only work at 100%. What I found in the documentation was that I could set a minimum fan speed. If I will put that on 100% will my idea work? Or am I missing something?
Any other way to use the HM to get a constant water temp would also be appreciated ;-)
After getting a daugther and all the gadgets she needs to "survive" we also got a bottle heater. My creative mind started thinking out of the box to see what else I could do with that and soon the "perfect boiled (no not green) egg" came in sight. Problem however is that the bottle heater we got doesn't maintain a constant temperature, and even worse: you can only select 4 temperatures: way to cold, to cold, to hot and boiling.
As the idea didn't leave my head I started thinking about the Raspberry Pi and the Heatermeter. As the HM is already equipped to do a similar job (checking temperature and adjusting it if needed) I came to the conclusion that that would be the way forward. I did some research to find a 5V heating element that I could safely drop in the water but couldn't find one that fitted the idea. So now I was thinking about using the fan-out to control a relay switch that will start/stop a heating element. That way I can keep the HM hardware intact for my BBQ's.
Problem is that the fan mode is incrimental and I figure that a relay switch will only work at 100%. What I found in the documentation was that I could set a minimum fan speed. If I will put that on 100% will my idea work? Or am I missing something?
Any other way to use the HM to get a constant water temp would also be appreciated ;-)