LCD RGB not displaying

Grove is a modulated, ready-to-use tool set.
Much like Lego, it takes a building block approach to assembling electronics.

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regeier
Pre-kindergarten
Pre-kindergarten
Posts: 8
Joined: Mon Oct 15, 2018 7:20 pm

LCD RGB not displaying

Post by regeier » Mon Oct 15, 2018 7:31 pm

I am trying to get the LCD RGB grove display working. The display is plugged into the 12C port furthest from the power input. I uploaded the HelloWorld example, and the backlight turns red, but there is no text on the screen.

Am I doing something wrong or is the LCD dead ?

seeed techsupport team
Staff
Staff
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Joined: Mon Mar 19, 2018 11:40 am

Re: LCD RGB not displaying

Post by seeed techsupport team » Tue Oct 16, 2018 2:34 pm

Hi there,

I suspect the voltage issue, please make sure you use 5v, NOT 3.3v. thanks.

regeier
Pre-kindergarten
Pre-kindergarten
Posts: 8
Joined: Mon Oct 15, 2018 7:20 pm

Re: LCD RGB not displaying

Post by regeier » Wed Oct 17, 2018 12:07 pm

Sorry, I don't understand this reply. Are you saying that the grove display cannot be used with the grove shield ?

seeed techsupport team
Staff
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Posts: 31
Joined: Mon Mar 19, 2018 11:40 am

Re: LCD RGB not displaying

Post by seeed techsupport team » Wed Oct 17, 2018 3:00 pm

Hi there,

there is a switch on the base shield, please keep it to 5V side, NOT 3.3v side. thanks.

regeier
Pre-kindergarten
Pre-kindergarten
Posts: 8
Joined: Mon Oct 15, 2018 7:20 pm

Re: LCD RGB not displaying

Post by regeier » Wed Oct 17, 2018 3:32 pm

Thanks, that fixed it. :)

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