Hi, I have an external LED board that runs from the telemetry port (Port2) on a Pixhawk 2.4.8 but the LED’s are not getting the info they need to signal change of status and low battery flashing yellow ? they worked in the old copter software but not 4.2, is there a parameter setting i need to update/change ?
You will need to change the SR2_ Parameters to something other than zero so the data is sent automatically without being requested, I assume your running in half duplex mode with only a single tx wire from pixhawk to led controller. you might have to also set it to mavlink 1 mode by setting SERIAL2_PROTOCOL to 1.
Yes changed all the parameters and still not working, is there a missing parameter form an older version of copter ? the LED’s worked fine in 3.6.8
what led board are you using and how have you wired it?
post a log file from the flight controller. are you sure you have changed the serial port to mavlink version 1 by setting serial_protocol to 1?
try changing serial2_baud to 57.
yes i have changed to different baud rates.
set serial2_options to 0 with serial2_baud to 57.
OK, Done that but no change ? i’m going to check the wires into the crimps to make sure there is connection/data flow.
Sorted, i had a bad crimp connection on the TX wire from Serial 2 to LED control board, all working fine now, thanks for the help.