REXYGEN Community Forum / How to create HMI in the Raspberry ?

Re: How to create HMI in the Raspberry ?

2016-02-25T09:10:03Z

No special firmware is required. See the tutorial on creating HMI for the algorithms in the REX Control System. When you have your HMI running, you just run web browser directly on the Raspberry Pi, point it to the HMI webpage and switch to full screen mode.

Re: How to create HMI in the Raspberry ?

2016-02-24T14:17:02Z

I also have the need of HMI using the RaspberryPi.
Can anybody help me to understand how i could achieve this?
Also what interfaces are required for this type of system?
Is any special type of firmware required for this type of system?

Re: How to create HMI in the Raspberry ?

2016-02-07T16:56:08Z

pasan wrote:

I hope REX will also develop the HMI GUI creator thing soon.

As for my projects, the RexHMI extension for Inkscape is all I need: http://www.rexcontrols.com/articles/gra … on-project
Do you need anything else?

Re: How to create HMI in the Raspberry ?

2016-02-07T02:22:34Z

jaroslav_sobota wrote:

Yes you can, there is the REXLANG function block for this purpose. See the example at
https://github.com/rexcontrols/REXexamp … r_Receiver

Wow, this is more than enough to develop a powerful low cost solutions. I hope REX will also develop the HMI GUI creator thing soon.

Re: How to create HMI in the Raspberry ?

2016-02-06T22:00:45Z

Yes you can, there is the REXLANG function block for this purpose. See the example at
https://github.com/rexcontrols/REXexamp … r_Receiver

Strings are not supported yet so you have to parse the data as an array of bytes. It definitely works for simple protocols. E.g. the connection with Arduino relies on this approach: https://www.rexcontrols.com/articles/re … ts-arduino

Hope this helps!

Re: How to create HMI in the Raspberry ?

2016-02-06T02:29:20Z

Does the REX support non standard UART communications ? Can I process UART receive strings on REX. Lets say our own protocols. I use 433MHz modems to link my own slave units. And I am not using MODBUS or any other protocol just my own simple protocol.

Re: How to create HMI in the Raspberry ?

2016-01-05T22:37:14Z

alfred_j_kwak wrote:

I suppose that you are working with some other home automation system.

Yes, here are some of the things I'm working on. But most of those things are still on the drawing table....

- DS2482-800 (I2C) with several DS18b20 temp sensors
- outside air temperature received through a Python script from several local weather stations (first stored in MySQLdB)
- 3-way valve control for floor heating + 3-way valve control for first floor wall heating
- valve control (on/off) to control separate heating circuits on first floor (PWM)
- MCP3424 (ADC) for pressure readings (tap water pressure and level rain water tank(MPX2050dP + AD623))
- OpenTherm gateway control through serial communication for controlling and monitoring gas boiler
- Power meter over modbus (RS485)
- remote temp sensors (DS18b20) for room temperature, would like to use RFM12B 868Mhz transmitters as they are being used by
jeelabs.
- water and gas meter (hall sensor and Atmega+RFM12B )

etc....

Re: How to create HMI in the Raspberry ?

2016-01-05T04:47:52Z

scoobsalamander wrote:

Please give us some more info regarding your current home automation system.
Maybe Modbus (TCP/ip or rs485) is an option ....?

Currently I use Domoticz and simple 433MHz transmitters and receivers to control lights. I have been searching way to use plc with current setup. Maybe with Rex I could include PID:s and other 'real' control into system.

Domoticz has API that uses JSON and If there is going to be something similar in Rex then maybe there'll be possibility to send data between these two systems (I/O status, current values, parameters)

I suppose that you are working with some other home automation system.

Re: How to create HMI in the Raspberry ?

2016-01-04T11:15:09Z

Please give us some more info regarding your current home automation system.
Maybe Modbus (TCP/ip or rs485) is an option ....?

Re: How to create HMI in the Raspberry ?

2016-01-01T10:48:55Z

I just yesterday installed demo version of your system and while testing it was wondering how to get my current home automation to communicate with Rex. No I know - just have to wait...

Re: How to create HMI in the Raspberry ?

2015-12-31T13:49:12Z

You are welcome. Thanks and all the best in 2016!

Re: How to create HMI in the Raspberry ?

2015-12-29T17:35:22Z

Thank you so much , I wish a great and a happy new year .

Re: How to create HMI in the Raspberry ?

2015-12-29T12:48:32Z

Q1/2016 is the most precise information I can give you.

Re: How to create HMI in the Raspberry ?

2015-12-28T07:21:50Z

Thank you for such a short time answering , I hope I'm not to buggy if I ask you : it will take a long time to doit ?

Re: How to create HMI in the Raspberry ?

2015-12-28T01:34:39Z

Not yet. I'll contact you as soon as we publish the beta version.

If there are any other users willing to get their hands on the beta version, enroll here. Thanks.