The Format of Received Data is unusual?

[e-taha]

Hello. Firstly, thank you for this library. I wanted to read and write hex data with an app using Modbus RTU. I could write data without any problem, but I couldn't read data on my device. When I changed the connection type to binary, I began to receive data, but I couldn't figure out what format it is.

The data that should be read in hex format is this:

• 0F 04 00 00 00 37 B0 F2

I receive this:

• DwQAAAA3sPI=

After that, I tried to send another data.

when I sent 00, I receive AA== 01 -> AQ== 02 -> Ag== 03 -> Aw== 04 -> BA== 05 -> BQ== 06 -> Bg== . . . 08 -> CA== . . . 0C -> DA==

It seems that after every 4 values, the first character becomes the next character in the alphabet. After 'Z', it becomes 'a'. After 'z', becomes '0'. After '9', becomes some special characters like +,- . when I sent 2 or more bytes, it becomes more complicated.

I read other issues related to reading hex data, but I couldn't figure out what should I do.

Mobile Device Environment

• Device: Android (POCO X3 Pro)
• OS: Android 12

Application Environment

• React Native version: v0.68.2

[kenjdavidson]

You'll need to provide some information on:

• What connection implementation you're using
• How you're connecting (connection options)
• Etc.

The data transfer is always strings, this is a limitation of React Native, unless they've started being able to transfer binary data, you're going to have to manage the strings to binary conversion in either your react app, or a custom connection implementation.

There are a number of closed issues on how to do this.

[kenjdavidson]

Any update on this?