RemoteIO and Modbus serial-TCP gateway: read serial Modbus devices over TCP

This small device does two job in one package, first it is a remoteIO module to read analogue inputs and control digital outputs. But I can also use to read Modbus RTU devices connected to the serial port and access them over the TCP connection.
My configuration.yaml file: github.com/nygma2004/km/blob/...
Seller's page: www.cdebyte.com/products/ME31...
Listing on Alibaba: www.alibaba.com/product-detai...
Chapters:
0:00 Intro
1:14 How it looks like
5:28 Modbus integration
6:58 Digital Outputs
9:35 Analog Inputs
15:07 Serial modbus device
17:56 Outro

[@SeaTaj]

Great video. This is the perfect type of nerdy content for me!

[@cristi1627]

Good job, Thank you for your work and info.

[@andrewpenny1145]

Hi Thanks for the help, it got me started. I struggled to get the inputs working with address 1 and assumed it was because i had multipole hubs, turns out the analogue inputs need to start at address 100 for integers and 200 for floating point.

[@stdalexius]

Thanks very useful video. Could you show how to use range 4-20ma sensor to get absolute values in HA. For example (pressure sensor) 4ma - 0 bar, 20ma - 12 bar???

[@csongorvarga]

Unforunately this is where my Home Assistant knowledge ends. ESPHome has a similar yaml file as the HA config, and it is possible to define a simple mapping. Maybe you can add the same to the HA yaml as well:
filters:
- calibrate_linear:
- 1262 -> 6.88
- 1486 -> 9.22

[@NickyVdln]

Hello, great video!!! One question, can you view the history of for example the temperatures in Home Assistant and can you export this or download the data?

[@csongorvarga]

I am not a HA expert, but I remember seeing history graph when I last played around with HA.

[@arkadiuszbaczek804]

Hello, how did you change the AI ​​range to 4-20mA ?

[@csongorvarga]

Check the documentation: Holdig Register 0x04B2 stores the sampling range 0 for 0-20mA and 1 for 4-20mA

[@arkadiuszbaczek804]

@@csongorvarga Thank you for your answer, I already changed thanks to your video. I can't find the "water tank" icon in my Home Assistant or in the directory, where did you get it?

[@csongorvarga]

@@arkadiuszbaczek804 I only defined in the YAML file that it is a class volume and HA picked the icon automatically. I did not change that.