Page 1. Page 2. 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 . Honeywell HR is an electronic programmable thermostat made by Honeywell HRE (it is generally the same as HR), Honeywell.

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Ronxostat switch has an A transceiver and a simple AVR. Don’t worry about missing file. Please enter 5 or 9 numbers for the ZIP Code. So the code is correct. Hi, This thread seems a bit quiet recently, maybe, because the weather is still warm and there is not much need for heating.

Can you try mount this HR20 into another valve?


I’m about to buy some HR20s to join this very interesting HR20 development. CurrentSW can be modified to direct communication between valves or between remote thermometer to valve.

I did this by using if – endif stuctures to make the code working for HR20 as well. But it is not on log.

Including Linux on small routers. I will change default value. Estimated delivery dates – opens in a new window or tab include seller’s handling time, origin Post Code, destination Post Code and time of acceptance and will depend on postage service selected and receipt of cleared payment – opens in a new window or tab.

It is possible use bootloader to flash this device. I have a blank display after some seconds only with this software. It is possible if you disable some existing part of SW to save flash space for example rs com. Rev and in branch rfmsrc is buggy measure wrong motor calibration, will be fixed today, please wait. It’s pitty that it can run only under MS Windows.


But i do not understand the result.

How can I check? Have somebody “master” hardware already? I wan’t to find maintainer for version 1. Motor recalibration will only touch to “open end” and go back to wanted position because know “closed position” – saved in EEPROM.

Especially the interaction the various subroutines. And how did you change it? This means that the whole plainblock is just XORed with ronostat constant bitpattern.

Youtube-Video “How to control a HR20 thermostat per honywell It’s only the first experimental step and the development is going on pcb layout, control more then one HR20 and so on. You can also get the status.

This is for my valves. The detail of the protocol has not been decided yet.

But stand alone server is significat for many others people, I hope that your ideas have many potential users probably include you Others: Rodostat the system is not much code but always worth some thoughts about! The valve was calibrated at the beginning of the measure.


I forget in “What I can do? I am sure the wheel was on the “all open” position, before I mounted it on the valve. It is buggy and sometimes lost some request. Is this a bug in the formula or a misinterpretation from yr-20e side? I checked in a security.


Has somebody a hint for me? Hello, I’m new to this forum and I have been playing around with the new firmware for the HR20E for some time. Hi at all, today I finished the first Christmas release V 0. At this moment I have new valve position measurement. The attack is on: Then I want to add small wireless nodes that monitor windows and doors with a small reed contact.

Jiri, first of all, I saw your graph from Rev I hope that it is clear. But on simulator you can manualy change pin status when SW is stoppend, or you can create input files, see to atmel docs. I am just going through the RTC routines: Ich bin so vorgegangen: Except this, in city center I can found over 50 wifi networks and it make communication near to impossible, noise is too big. Will try it soon, wish i could code in. This is signalization where motor stop logical level.

I plan to add a check for all entries and I would like to use masked text, but here MS made it not very easy to have a nice implementation. I would like to inform you, that wireles communication works.

Wireless aplication screenshot false window close detection problem. It must be improved. Shipping cost cannot be calculated.