Node serial port, how to perform crc check

[marcus-j-davies]

I have just put this together - it uses easy-crc

A Simple CRC Checksum Node (Subflow)

This isn't a published node, but a subflow to easily validate checksums. The subflow requires the following inputs: crcLength : example : 8 crcChecksum : example : "362d" crcAlgorithm : example: "XMODEM" The check will be applied against the payload - so you will need to remove any checksum that maybe part of the value to be checked. The subflow will check the type of the payload and if its a: Buffer - will use as is String - will create a buffer from it Object - will stringify it befor…