Rotronic RMS Forum

Hygroclip2 change 485 address

Thread #1021 | 2020-12-18 05:06 UTC | Guest | replies: 8
Post #1 | 2020-12-18 05:06 UTC | Guest
Hi, I am connecting the Hygroclip2 with Arduino and then to my PC, I am trying to change the device 485 address using the "REN" command, but it didn't work. Any suggestions? Thanks
Post #2 | 2020-12-18 06:37 UTC | Clemens.Duzy
Hi Jzerun,
why not use the HW4 SW to change the RS485? The SW is free for device configuration.
Download here

Clemens
Post #3 | 2020-12-18 06:45 UTC | Guest
Hi Clemens, thanks for your quick reply. I am trying built a system with Arduino board, not really a good idea to use the HW software via a PC. So it would be easier to do with code. Cheers
Post #4 | 2020-12-18 06:53 UTC | Clemens.Duzy
ok, that makes sense. In this case, did you finish the command with carriage return (0x0D)?
Post #5 | 2020-12-18 07:08 UTC | KeiBock
Hi jzerun

The Command is as followed:

Command format:









„{“ ID Adr „REN“ Serial number + new address Chksum

The checksum can be substituted with "}"

For example programming the address 04 to the HC2A Probe with the serial "20294381" and address "00":

{F00REN 0020294381;04;}

Please note, that the Serial number must have 10 digits. So usually you need to add "00" to the serial.
Post #6 | 2024-02-15 01:57 UTC | Guest
Depending on the model of your HygroClip2 device, there might be a specific button combination or interface to access the configuration mode. Refer to the device manual for instructions on how to do this.
Watermelon Game
Post #7 | 2025-05-07 07:19 UTC | Guest
Have you connected the wires correctly and set the baud rate correctly? Also check if the "REN" command requires any additional parameters and make sure you are sending the command correctly from the Arduino.
crossy road
Post #8 | 2025-06-11 06:51 UTC | Guest
It sounds like you're having trouble changing the 485 address on your Hygroclip2. Have you double-checked the command syntax and the connection settings? I recall encountering similar issues while working on my projects, such as the one I experienced with crazy cattle 3d. Sometimes a simple oversight can be the culprit, so it might be worth revisiting the documentation or trying a different approach. Good luck!
Post #9 | 2025-06-17 08:40 UTC | Guest
Hi! Make sure you're sending the "REN" command correctly according to the Hygroclip2 protocol. Check the baud rate and geometry dash​ communication settings, and ensure the command format matches the device documentation. Sometimes, timing or wiring issues can also cause it not to work.

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