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How to read a hex sent from a device

See original GitHub issue

I am sending a hex value to a device and expected to receive hex value in response 08 00 00 05 01 00 00 01 03 00 0E. But i am unable to do so. The object that comes in onDataReceived has the key data with empty value. Please guide how to read hex data from a device

Issue Analytics

  • State:closed
  • Created a year ago
  • Comments:5 (2 by maintainers)

github_iconTop GitHub Comments

kenjdavidsoncommented, May 13, 2022

So ya, if you’re not sending a delimiter \n or whatever, then the messages will never be broken up, and therefore never be found. What it does is:

  • Data comes in
  • Do we have any delimiters?
  • For each delimiter send that data (if there is a listener)

for manual reads

  • Do we have a delimter?
  • Each read will get the next data for the delimiter

If you’re getting 11 available, that implies that there should be 11 separate messages, I’m pretty sure that’s what it means anyhow.

You can attempt to do

connectToDevice.(deviceId, { delimiter: '' });

Using an empty/null delimiter, MAY (I think there was a request for this) cause it to skip all the delimiter logic, and just send the stream of data through.

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