Project help - Standing Desk to Smart Desk

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21

There are two kinds of these splitters and unfortunately, they look identical and they are often not described correctly. I was looking for this kind that lets you run 2 100Mb connections over a single wire, but once I instead received the kind that duplicates all wires on both sides. So they do exist if you can find them.

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22

Any luck in connecting this desk to Home Assistant? I have the same desk controller and would love to integrate it in Home Assistant

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23

Any updates here ? I have the same desk controller!

24

Hey everyone, thanks for your interest! Unfortunately, I couldnā€˜t figure out the wiring of the desk and I donā€˜t have the time to investigate any further.

Youā€˜re best bet is to probably join the ESPHome Discord and ask around for help. Thereā€˜s a lot of smart people there that could potentially help you out.

Best of luck!

& let me know, if you were able to figure it out. :slight_smile:

25

I was able to capture UART data with ESPHome, but donā€™t know how to decode/use it. Maybe @ssieb can help if I share the captured UART data ?

Thanks!!

26

Possibly. Create a thread on the esphome Discord off-topic channel.

27

It seems like I also do have the same Controller. Could some provide a pin diagram so I can also connect it up to a ESP8266?

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28

Have you gotten anywhere with this?

A key reason why you didnā€™t get much luck with the RJ45 splitter is because this deskā€™s controller actually uses RJ50 - note how thereā€™s 10 pins in the RJ connector (and 10 labeled pins on the board too!).

For some reason your motor controller also seems to have a B and a D UART channel (B-TX, B-RX, and D-RX and D-TX). Key 1 and Key 2 most likely connect to direct keys on the control panel (e.g. Memory button).

Iā€™m in a similar conundrum, my desk uses a JSM-2.1-0.3W motor controller, which also employs an RJ50 jack instead of RJ45. Iā€™ve only pulled the hand controller apart as of now, but it only shows a handful of pins (with the weirdest colour assignments, black and white are RX/TX, blue is ground, green is 5V, and thereā€™s also a U_G and a DC pin, latter I think has the full 24/36V rail exposed from the motor controller, but Iā€™ll have to take that apart to confirm it).

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29

@fonix232 Did you manage to get more info from the board or even make it work with ESPHOME?

30

Check out the Desktronic thread - itā€™s the same controller, and you can get it to work ā€œokayā€, albeit in a proxy mode, which is a bit janky.

Iā€™m still working on trying to get the secondary UART working, which is used by e.g. the official (but unavailable for purchase) BT dongle.

31

Thanks for the reply @fonix232, Iā€™ll try to check the whole topic to verify the wiring.