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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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Does this make any sense? Week mode operation is not well supported in the program.

Please see to eeprom. Could you tell us some words about these things? See to attachment addr time mode valve real wanted battery error window force 17 I looked at the PCB in order to determine what is pin 1, so I will use this numbering, and hopefully this notice will avoid any misunderstandings of the pin numbering. I’m not a compiler expert but I’ve found this one: The other question was whether the wireless version will use its own stored in the HR20!

I checked in a security.


The uController will probably be supplied with 5V and level conversion done between the HRE and the micro. Makes a low whirring noise when valve activated to control flow into radiator. I think that because of the strong spring in the valve the real valve position shifts a little bit every time the valve is closed.


The A can help to filter the device ID. A log line is now D: A keypad and dial; 3. Visit my eBay shop. I was make mistake in my test. They work well and have two alternate hot and cold periods.

Replaced existing thermostat within a few seconds without any special tools. Hr2e you want this, buy only one first and try. This could be the reason that your second example with casting of the end result is working. Except this I can’t recomend I2C bus over all valves. We need to compare current value and 1 minute old value. You can still see all customer reviews for the hr220e. 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.

Protocol details v2 The information in this section is based on different sources found on the ‘Net. Fantastic project, the rondostar worked more or less ‘out of the box’ for me.

Customer reviews

I will fix it. I could be more than one reason. Having more than 4 switching times, together with more than 2 temperatures will surley let me reprogramm all the setup stuff etc. But it will be done after few weeks, today I have more urgent tasks. Window open function looks buggy. To compile it, you need cmake. The HRE seems to be ronndostat to the following commands: I will try discover where it problem tomorow.

Honeywll encoded display data.

:Customer reviews: Honeywell Rondostat HR Radiator Thermostat Timer

What is the easiest way to connect to pc? I never saw this problem, but I found it on code review. In the past I had the wish to integrate the HR20 into “my system”. All this values are not exact and it depend to honsywell type. I was try to add hysteresis which allows deviation before trying to regulate. I hope that it will reduce motor movement outside valve regulation area. For additional information, see the Global Shipping Program terms and conditions – opens in a new window or tab This amount includes applicable customs duties, taxes, brokerage and other fees.


Any international shipping and import charges are paid in part honyewell Pitney Bowes Inc. This works for me in a reasonable way So don’t enter an invalid time, only this range is allowed [ Add my own notes about things I have found.

Does all this fit into HR20 left codespace anyway? I made hudge experimental change in motor controller. On worst situation after movements you will have impulses error on position but it is not probbaly win in lotery it absolute sure compare to this: One person found this helpful. The other functions are self describing I think. Used after power failure. This is what we will be using to remotely control the device. Propably tomorrow I can send you a log file.

This is the video https: