Timeline for How to identify the communication protocol?
Current License: CC BY-SA 4.0
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| Feb 26, 2020 at 8:00 | history | bumped | CommunityBot | This question has answers that may be good or bad; the system has marked it active so that they can be reviewed. | |
| Oct 27, 2019 at 9:01 | history | bumped | CommunityBot | This question has answers that may be good or bad; the system has marked it active so that they can be reviewed. | |
| Jun 24, 2019 at 9:02 | history | bumped | CommunityBot | This question has answers that may be good or bad; the system has marked it active so that they can be reviewed. | |
| Feb 18, 2019 at 12:01 | history | bumped | CommunityBot | This question has answers that may be good or bad; the system has marked it active so that they can be reviewed. | |
| Jun 7, 2018 at 11:14 | comment | added | user1707414 | Thanks a lot for your advices. I learnt a lot. On site I have no oscilloscope and the connection would be a bit too hazardous. Is there a way to plug some arduino or else to record and even replay the frames ? | |
| May 25, 2018 at 23:41 | answer | added | Jasen Слава Україні | timeline score: 1 | |
| May 25, 2018 at 23:20 | comment | added | Jasen Слава Україні | I agree, the parts near that plug don't look mains rated, so the power is low voltage. | |
| May 25, 2018 at 23:02 | comment | added | DigitalNinja | It's hard to tell from the angle, but it looks like the tan(beige?) wire is +12V, blue is "NET" (network?), and yellow/green is GND, based on the silkscreen... if true, looking at the blue wire on a scope may help. | |
| May 25, 2018 at 22:24 | comment | added | Marcus Müller | @Andyaka as wireless comms engineer, I'd argue it's three superfluous wires ;) but seriously, these definitely look like they are primarily used to transport power, and I don't see any of the transformer-type devices that you'd normally see when looking at systems that superimpose a higher-frequency signal onto a power line. | |
| May 25, 2018 at 22:23 | comment | added | Marcus Müller | @user1707414 that certainly looks like a Quartz, but that says pretty much nothing about communication, as almost any digital logic is clocked, and to generate these clocks, crystal oscillators are the oscillation source of choice. | |
| May 25, 2018 at 21:16 | comment | added | Andy aka | "What I do not understand is how this system communicate with the heatpump as I only see three wire." - three wires is pretty much anyone needs to communicate between things electronically. | |
| May 25, 2018 at 20:57 | comment | added | user1707414 | I will look for any additional information. The 4 pin connector is not connected. Could the silver cylinder on the bottom be a quartz ? | |
| May 25, 2018 at 20:55 | comment | added | Marcus Müller | These three wires are, based on their color and the kind of cable used, almost certainly the power lines + protective ground. So, communication likely doesn't happen using these at all. Does either of your devices happen to have some FCC id or other indication it does wirelss communication? also, what is the unused 4-pin connector in white used for? | |
| May 25, 2018 at 20:49 | history | edited | user1707414 | CC BY-SA 4.0 |
added 54 characters in body
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| May 25, 2018 at 20:45 | comment | added | PlasmaHH | Hook up your scope and have a look | |
| May 25, 2018 at 20:44 | history | asked | user1707414 | CC BY-SA 4.0 |