Using data from a serial packet

[noiasca]

@billvv

Is the PacketSerial library the best way to approach decoding and extracting the value?

imho the best start is to follow the tutorial "Serial Input Basic" from this forum.

Serial Input Basics - updated

Updated Version Please note that this is a revised version of the advice in this earlier Thread which has become very long. As far as possible I have kept the code examples identical or simplifed them slightly. It should not be necessary to refer to the older Thread, but feel free to do so. Contents The following sections are in this Tutorial Introduction Serial data is slow by Arduino standards Example 1 - Receiving single characters Why code is organized into functions Exampl…

just two days ago, we have solved another "read message from a device" - it should give you an idea how to solve such reading.

How to parse serial data string to Floating values

this will read such a message from Serial and print the values every 3 seconds to serial /* Serial Receive Example no start tag [Tag Value ValueEndtag] separated values by ValueEndeTag D no dedicated end tag C1.8D1V0.0DWh0.0DAh0.0D where C is current V is voltage wh is watthour ah amperehour this variant parses each value during the incoming packet by noiasca 2022-06-26 https://forum.arduino.cc/t/how-to-parse-serial-data-string-to-integers/1006661 */ …

if you need further support:

• we would need a product link of the device you want to read (otherwise it makes no sense to invest time to an unknown product)
• a datasheet describing the message protocol
• two FULL messages as an example including an indication which values are from interest for you.