![]() My goal is to build a controller to manage the entire heating system in my house with a good balance between energy efficiency and comfort. thermostat heat request)īut of course I want more. ![]() hot water temperature, pump speed limits) This together with a raspberry pi near the boiler is now reliably logging metrics to to Statsd which in turn send it to graphite. Using this information I was able to write a simple python script which could request data from the boiler using a PL2303 USB to serial TTL adapter ( dx) using this wiring layout. After some googling I found that Robert Hekkers already did a lot of research on this. After buying and installing a Remeha Calenta boiler last year I started digging into its hackability.
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