OpenMV LCD Shield not functioning

Help & Support Robot Parts
1

Just received this item ([https://www.robotshop.com/en/openmv-cam-lcd-shield.html](http://LCD Shield)) and attached it to my working OpenMV board - attempted to run the example code and it fails. I presume the shield may be bad but wanted to confirm I wasn’t doing anything out of the ordinary.

import sensor, lcd
# Setup camera.
sensor.reset()
sensor.set_pixformat(sensor.RGB565)
sensor.set_framesize(sensor.LCD)
sensor.skip_frames()
print("we make it this far")
lcd.init()
print("but never past initialization")
# Show image.
while(True):
    lcd.display(sensor.snapshot())
2

Hi @deroses

Please use the following link to help you with your code:
https://docs.openmv.io/library/omv.lcd.html

Functions

lcd. init ([ type=1 ])

Initializes an attached lcd shield using I/O pins P0, P2, P3, P6, P7, and P8.

type indicates the type of lcd shield (for future use possibly):

  • 0: None
  • 1: lcd shield
3

Thanks for the response - I read that in the documentation as it being an optional parameter so I did not include it. I just attempted to include it : when I set it to 0 (no lcd shield) the system runs and I see the view in the IDE but nothing on the LCD - which makes perfect sense. When I set it to 1 I get the same failure as before: when it attempts to initialize it fails and the code/IDE stops. My assumption is that the default is use the lcd shield so setting type = 1 is the same as doing nothing.

This seems to confirm that there is something wrong with the lcd hardware, correct?

4

Hi,

I’ve contacted the manufacturer and they seems to agree that it is defective. However, they want you to post on their forums if possible.
You can post here:
http://forums.openmv.io/

5

I just wanted to follow up here - the problem is mine - I originally soldered the pins facing up (towards the camera lens) and turns out they want you to solder down (facing away from lens). As such there was a mis-match between what was expected and what I was providing. User error (although come to find out other people on the OpenMV forum have had the same issue).
Adam

6

Hey @deroses

Thank you for your follow-up!