Topics

1

preenfm2 and preenfm3 / PFM3 display black

« on: May 01, 2021, 06:25:56 PM »

Hello, today I built Preen FM 3 - kit. After power up yellow led 5v and Gnd 3.3v lights, but display is black.
Jumpers are on Dc in, Boot0 and Tft Vcc 5v.
Should be factory flashed, but no headers was soldered.
Any idea? Do I missing something?
Thanks for help.
Jiri.