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@r_255 I was interested in running this off a battery too. I did put the code in which is supposed to reduce the power consumption but I haven't tested it or done any measurements yet. You'd also have to disconnect the UartSBee which will drain the battery and attempt to wire everything straight to ...

@r_255 glad someone other than me gave it a go :) I find it really helps with the heat up time in one of the rooms when it's cold out. I already used the internal sensor in the evohome for another room to similar effect which is one of the reasons I wanted to do this. As far as the Domoticz json goe...

Actually it just occurred to me what the 1f09 message means. Initially I saw it comes just before the controller broadcasts its regular update which is usually zone temperature and set points or occasionally the zone settings instead. The payload seemed like it could be the interval between broadcas...

So I swore I wasn't going to do anything more on evohome well actually that was a couple of months ago :roll: Anyway I modified the firmware to create an evohome compatible temperature sensor. This was just guess work about the messages (used existing temperature message) and the binding procedure b...

@r_255 glad to hear that you were able to get the v23 firmware and can control the set points. To the best of my knowledge local radiator updates don't seem to work on any system, my controller doesn't pick them up at all either. I think I could probably program a solution for Domoticz maybe in the ...

@r_255 Thanks for giving it a go glad you got a result

Honeywell originally stated you need a v23 firmware or later to control the system. Just curious if you have that version and if you had any luck changing the controller modes and set point etc.

@mouse256 thanks for the comment :) It's a good question, on the face of it the CUL is the better hw i.e. 32u4 processor with more ram and easy to add an external antenna. Both devices are 8MHz so not sure about speed I originally thought the CUL was faster but maybe not. There is always a flip side...

I believe the header flags [5:2] represent a bit packed table (as given in CD's protocol pdf) of all potentially valid packet types / modes. The bottom 3 bits as stated are dev0, dev1 and dev2. The top 4 bits (from MSB down) are the packet mode as follows W, I, RP and RQ. My guess is this is Write, ...

@r255 thanks it's nice to be appreciated

The RFBee is a pretty limited device it took a bit of re-engineering to get it processing adequately, The HGI80 uses a TDA5250 and a M430F148 MCU (ti 16-Bit Ultra-Low-Power Microcontroller)

So I decided to create an RFBee firmware for Domoticz i.e. one that allows you to use the RFBee in place of the HGI80. I started off using HoneyCommLite but there were some notes about it being too slow to do hex print (which is what I wanted) so I couldn't gauge if it was working properly or not. I...

Couple of notes... Where 0xc8 (200) is the max value for a byte this appears to be a percentage i.e. n/0xc8*100 or n/2 The 3B00 cmd is more than just a keep alive for the relay it also synchronises the start of a time period for any relays bound to the message. So if there are 6 cycles an hour i.e. ...

I'm after a small PSU to power an Arduino internally within the project case direct from 240v mains. This will be used to create a PDU type device i.e. for mains switching so I'd like to avoid the unnecessary clutter of an external PSU when the mains already has to run to the case anyway. It will al...

@Rene: Thanks for the feedback. I didn't really have anything to compare with when I started so as to be able to gauge what normal behaviour would be like. I've spent a while looking in a bit more detail and it looks like not only are there repeated messages but also missing messages too so I figure...

So a 2 second delay didn't work any better than before. It actually failed pretty quickly. I'm now wondering if it's not just inherently unreliable. I'd like to get a handle on if this is normal behaviour or if there is something wrong with the hardware, code etc. So I don't suppose anyone else has ...

More investigation reveals that there are actually a fair amount of repeated messages coming from the panel when I request the status. It therefore seems likely that the panel is actually very slow and doesn't cope well if you send an ack back quickly. This actually would also fit with what I saw wi...