Jump to content

16x2 LCD problem on STM32F4


M.Trinacty
 Share

Recommended Posts

Hi,

I im trying to run simple character lcd, without core module, but keep getting some random chars, or even just blocks, but it keeps blinking.
I followed schematic from uCApps page for STM32F4, but the part to set Luminance i dropped and simply connected it to ground, Could be this a problem ?

Tried to connect from scratch everything a few times, but still getting the same error...

Please, if anyone has a tip what could be the problem, mine is that as i am lame at electronics, somewhere is connection problem maybe, im bit confused about the resistor array.
Here is a video showing the behavior of LCD

https://drive.google.com/open?id=1CPgCp6t-rewshbGq7Yprdonu_htadADo

Thanks,

Martin

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Loading...
 Share

×
×
  • Create New...