19 items Honeywell Rondostat Programmable Thermostatic Radiator Valve TRV 1X HONEYWELL RONDOSTAT HRE HR HR Heizkörperregler. This project is about controlling a Honeywell Rondostat HRE electronic radiator thermostat over an RS bus. The idea for this project. The HR Rondostat. Is an electronic radiator control. It allows the user to precisely control the temperature in a room and introduces automatic running set .

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So the code is correct. Hello Jiri, I’ve tested your fixes and they are working for me.

For additional information, see the Global Shipping Programme terms and conditions – opens in a new window or tab This amount includes applicable customs duties, taxes, brokerage and other fees. The 1 is hoheywell the E2-Error instead of ignoring it.

Without this it is easy decrypt packets xor fixed key. Is this a bug or is there anything else to set?


Does all this fit into HR20 left codespace anyway? HR20 will transmit status packet next minute with PK3 -step 8: For setting the hr20 i used the openHR20suite dated Could you send me your modification on RFM12? The firmware’s source code including encryption algorithms is open source. I am not abble to find algorithm to find it automaticaly every idea have some condition when must fail.

I think when we use 1 or 2 Byte rands, than it is better to use no security at all, because it can be very easy broken. Have fun with it. This is my second unit, these look to be German imports as all the instruction are in German and the mounting is designed for horizontal rather than vertical as is common on UK TRVs. So, tell me your plans! Could you tell us some words about these things? The protocol is ASCII-based, and timing requirements are not very strict, so you should be able to test out the commands with your ht20e terminal program even the dreaded HyperTerminal could do in a pinch, i think.


Translate the information into English most of it is in German. Rondostst can try change this filter setting it is config.

Jiri, the Suite is for me also an interesting honeywlel project, since I have not written until yet a WPF application and I did like to use other technology stuff like reflection, data binding, user controls, which the.

I thing that it works, but I haven’t this HW to confirm it. The detail rondstat the protocol has not been decided yet. Data speed is not critical, battery life is bigger broblem. I putted a second temperatur sensor to the HR20 and tried to control the recirculation temperatur of any heater independently. Hello I have buy an other HR20 www. Seems to be maintaining required temperature in the lounge without heating up the room unnecessarily during day when unoccupied.

It would be good to have an algorithm, which adopts automatically to some parameter and may be also predict the temperature which will be reached on a valve setting. Therefore we cant restart hash function for each “status” packed from HR A log line is now D: You can edit your question or post anyway.


Hello, I’m new to this forum and I have been playing around with the new firmware for the HR20E for some time. Can you send me your valve range?

But i have also an older hr20 original v1. I could hear that the valve was still open. Maybe I am not the only one with such a special wish: Because moon looks like “C”: After a week or so I found that the temperature in the room was always to high and the valve already at its minimum position of But window open detector have noise filter only from 5 values.

Version before this revision use constant PWM for open and another constant for close. Using RS is a good idea.

It just only idea This is very nice! Please be aware that this page describes the v1 hardware, which has been obsolete for several years.


I was try your SW 0. Most of the time the units shall work independently with their own settings and I just want to override these settings occasionally, e. Have to find out how this works. Hello Jiri, my honeywelll calibration” was only a thought for a workaround to automatically correct the actual position.