@ffimon @supermegazord
Ok, I emailed the manufacturer last night, and this morning I already had the datasheet and some code samples.
Here’s a build of the driver which will hopefully work with the FD6551 chip. Make sure to also use the attached vfd.conf file.
openvfd.zip (64.1 KB)
magicsee-n5-2-vfd.conf (1.5 KB)
You need to extract the zip in your box, then run sh test_led.sh.