Wed, 10 Jun 2026 09:13:13 +0100 https://www.greenbuildingforum.co.uk/newforum/ Lussumo Vanilla 1.0.3 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=18173&Focus=306446#Comment_306446 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=18173&Focus=306446#Comment_306446 Mon, 12 Aug 2024 12:10:24 +0100 john.connett
It would probably be possible to produce something using a https://thepihut.com/products/adafruit-pt1000-rtd-temperature-sensor-amplifier-max31865-ada3648" >PT1000 RTD Temperature Sensor Amplifier, https://thepihut.com/products/adafruit-ds3502-i2c-digital-10k-potentiometer-breakout-ada4286" >DS3502 I2C Digital 10K Potentiometer and a Raspberry Pi Peco or similar if I possessed the necessary making skills.

However, I would prefer a ready made device that wouldn’t frighten a heating installer!

Any suggestions?]]> https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=18173&Focus=306449#Comment_306449 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=18173&Focus=306449#Comment_306449 Tue, 13 Aug 2024 09:40:41 +0100 Peter_in_Hungary https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=18173&Focus=306451#Comment_306451 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=18173&Focus=306451#Comment_306451 Tue, 13 Aug 2024 19:32:42 +0100 revor https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=18173&Focus=306455#Comment_306455 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=18173&Focus=306455#Comment_306455 Wed, 14 Aug 2024 11:08:19 +0100 WillInAberdeen

You are thinking of connecting together an ADC, microcontroller and DAC? To read the 1000ohm PTC sensor, and produce a voltage/current combo that the new controller will interpret as coming from a 20000ohm NTC sensor. There are microcontrollers with built in ADC and DAC that might simplify the hardware side of this.

The devils might be in the maintenance - what happens if there's a bug or it falls over, could it damage or upset the solar controller, how do you know when you need to reset it, does it need updates. (Just my experience of microcontroller heating projects!)]]> https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=18173&Focus=306456#Comment_306456 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=18173&Focus=306456#Comment_306456 Wed, 14 Aug 2024 20:56:22 +0100 john.connett
My ideal solution would be a ready made black box that just works and is from a trusted manufacturer. No idea if such a thing exists. Hence, my question.]]>