HD-0420CW-AY3 strange behavior with home command

hodoe

• April 07, 2021 08:06

Hello, I have some strange behavior. I read en encoder and do a home. On an enocder change I write a three-figure decimal number.

Every home or clear I got these lines and points you can see in this video: http://www.dl9hda.de/dateien/IMG_5790.MOV. The camera did not fetch all appearances.



best regards
Holger

0

• 

  Zach P

  NHD Staff

  • April 07, 2021 14:35

  Hello Holger,
  
  I saw the video and my initial couple thoughts were delay requirements and/or line interference. What type of interface are you using for your design? Linked below is an SPI example from our NHD Github account for the 0420CW. It may be beneficial to review and test the code out to ensure display functionality.
  
  0420CWDemoCode: https://github.com/NewhavenDisplay/NHD-0420CW-Slim-OLED/blob/main/NHD%200420CW%20DemoCode/SlimOLED0420CWDemoCode.ino
  
  Thanks,
  ZP

  0

Please sign in to leave a comment.