sefi
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Posts: 13
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Post by sefi on Jul 18, 2016 18:17:40 GMT
Hey all, I am looking into controlling the lights and curtains in the house with Livolo switches (like this one here). The reason is that I would like to be able to control the lights via the switches themselves manually and via the app/gateway. This, combined with a RPI and this pair for RF communication seems to work (haven't tried this myself but a friend has it working). Now, for the questions - Is it possible to replace the pair above for rf communication with the popular RFM69HW 433Mhz?
- In addition to being able to control the lights via the Livolo switches, I would also like the lights to turn on/off in reaction to some sensor readings, like ambient light or proximity.
If I hook up an arduino node with the same RFM69HW chip and the sensors, will it work or would I also need to have another arduino/RPI for the sensor nodes communication as proxy and it will delegate to the main RPI?
Thanks! Sefi
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sefi
New Member
Posts: 13
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Post by sefi on Jul 20, 2016 13:13:34 GMT
No one uses Livolo switches?
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Post by greginkansas on Jul 20, 2016 23:51:15 GMT
They do look clean.
Is it possible to replace the pair above for rf communication with the popular RFM69HW 433Mhz? Yes
In addition to being able to control the lights via the Livolo switches, I would also like the lights to turn on/off in reaction to some sensor readings, like ambient light or proximity.
Yes
If I hook up an arduino node with the same RFM69HW chip and the sensors, will it work or would I also need to have another arduino/RPI for the sensor nodes communication as proxy and it will delegate to the main RPI?
You need RPI for openhab and MQTT or a PC
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sefi
New Member
Posts: 13
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Post by sefi on Jul 21, 2016 5:45:49 GMT
hey greginkansas, Thanks for your reply. The Current setup that I know works, is Livolo switches that are controlled by a RPI connected to the Tx/Rx units (it runs OpenHAB for the control). Now, since I also want to be able to read sensor data, I wonder if the following setup will work: One or more Livolo switches One or more arduino sensor modules 1 RPI running OpenHAB and wired to use the RFM69HW Will the same RPI be able to control the switches and read sensor data using the same RFM69HW module or would I need two RPIs (one for sensor reading and one for control)? I am asking, because I am not sure the Livolo switches use the same rf modulation as the RFM69HW module They do look clean. Is it possible to replace the pair above for rf communication with the popular RFM69HW 433Mhz? Yes In addition to being able to control the lights via the Livolo switches, I would also like the lights to turn on/off in reaction to some sensor readings, like ambient light or proximity. Yes If I hook up an arduino node with the same RFM69HW chip and the sensors, will it work or would I also need to have another arduino/RPI for the sensor nodes communication as proxy and it will delegate to the main RPI? You need RPI for openhab and MQTT or a PC
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Post by greginkansas on Jul 21, 2016 23:00:08 GMT
Now, since I also want to be able to read sensor data, I wonder if the following setup will work: One or more Livolo switches One or more arduino sensor modules 1 RPI running OpenHAB and wired to use the RFM69HW
The system most of us use is arduino sensor modules > gateway arduino with rfm69 + ethernet > RPI with Openhab + MQTT
Will the same RPI be able to control the switches and read sensor data using the same RFM69HW module or would I need two RPIs (one for sensor reading and one for control)?
No, just one
I am asking, because I am not sure the Livolo switches use the same rf modulation as the RFM69HW module
No chance they are the same.
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sefi
New Member
Posts: 13
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Post by sefi on Jul 23, 2016 10:48:20 GMT
Yeah that's what I thought re the modulation, but as long as all broadcast on the 433mhz frequency, all should be able to talk - correct?
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Post by greginkansas on Jul 23, 2016 13:17:08 GMT
Yeah that's what I thought re the modulation, but as long as all broadcast on the 433mhz frequency, all should be able to talk - correct? No they are very different.. My take on it is to use one of "our" nodes to read your panels - to a gateway - then to a RPI with openhab. Are you up for that hardware/software wise? Papa has wrote this for learning- homeautomation.proboards.com/thread/62/success-home-automation-arduinos-rfm69s
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sefi
New Member
Posts: 13
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Post by sefi on Jul 24, 2016 5:03:22 GMT
The fail-safe approach would be an arduino sensor node talking over RFM69 to the arduino gateway, which will update the openhab on the RPI. The RPI can turn Livolo switches on/off accordingly. This will work for sure, since both paths work separately: 1. Arduino sensor node -> Arduino gateway -> RPI openHAB 2. RPI OpenHAB -> Livolo switches I was hoping to merge the paths, however now that I think about it some more I am not sure it is possible. The sensor nodes and gateway communicate over the RFM69 with encryption, I am not sure the Livolo switches support that. RE your question - I am a software engineer, so the ino files are not the problem for me. I struggle more when it comes to the hardware. I have zero knowledge in electricity - but I am up for the learning experience
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Post by greginkansas on Jul 24, 2016 12:42:43 GMT
The fail-safe approach would be an arduino sensor node talking over RFM69 to the arduino gateway, which will update the openhab on the RPI. The RPI can turn Livolo switches on/off accordingly. This will work for sure, since both paths work separately: 1. Arduino sensor node -> Arduino gateway -> RPI openHAB 2. RPI OpenHAB -> Livolo switches I was hoping to merge the paths, however now that I think about it some more I am not sure it is possible. The sensor nodes and gateway communicate over the RFM69 with encryption, I am not sure the Livolo switches support that. RE your question - I am a software engineer, so the ino files are not the problem for me. I struggle more when it comes to the hardware. I have zero knowledge in electricity - but I am up for the learning experience am not clear on this- This, combined with a RPI and this pair for RF communication seems to work (haven't tried this myself but a friend has it working). Do you have read write control with this? - are they RF or hardwired to the RPI
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