Lukanite
commented
3 years ago Yeah, that's right. Looks like some of the commands from other products just happen to work, so I've been trying 740 (time)/741 (position): https://cdn.sparkfun.com/assets/b/c/4/4/5/AirPrime_XM_XA_Series_Software_User_Guide_r3.pdf
Fix bug where some L76 messages are ignored due to the checksum being one digit long (i.e. 'F') vs. the expected 2 digit length ('0F')
(Hi! 👋 Thanks for sending a pull request! Please make sure you click the link above to view the contribution guidelines, then fill out the blanks below.)
What does this implement/fix? Explain your changes.
Sometimes, messages written to the L76 are ignored due to an invalid checksum
Does this close any currently open issues?
None afaik
Any relevant logs, error output, etc?
(If it’s long, please paste to https://gist.github.com and insert the link here)
l76.write("PMTK740,{},{},{},{},{},{}".format(curtime[0], curtime[1], curtime[2], curtime[3], curtime[4], curtime[5]))used to result in$PMTK740,2021,4,8,19,0,57*6being sent, which was missing the second checksum digit, causing the message to be ignoredAny other comments?
Where has this been tested?
os.uname()output: (sysname='GPy', nodename='GPy', release='1.20.2.r4', version='v1.11-ffb0e1c on 2021-01-12', machine='GPy with ESP32', pybytes='1.6.1')