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Adafruit 3.5" 320x480 Color TFT Touchscreen Breakout
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Adafruit 3.5" 320x480 Color TFT Touchscreen Breakout

by jglogau on Thu Jun 10, 2021 3:59 am

I have a Adafruit 3.5" 320x480 Color TFT Touchscreen Breakout that I can't get the basic graphicstest sketch to work. I am using the 8 channel end of the breakout, that is the issue.

I was able to get the SPI end of the breakout to work but I need the 8 channel because of the libraries I am looking to use, LCDMenuLib2.

I am getting the message that the driver chip is unknown:

------------------------------------------------------------------------------------------
TFT LCD test
Using Adafruit 2.8" TFT Breakout Board Pinout
TFT size is 240x320
Unknown LCD driver chip: 0
If using the Adafruit 2.8" TFT Arduino shield, the line:
#define USE_ADAFRUIT_SHIELD_PINOUT
should appear in the library header (Adafruit_TFT.h).
If using the breakout board, it should NOT be #defined!
Also if using the breakout, double-check that all wiring
matches the tutorial.
---------------------------------------------------------------------------------------------------------------------

I have been trying to get this fixed for four days, don't think its
the wiring, Tried this on a Mega, Uno and Mega clone.

I also commented out the right code so the shield code isn't defined, as stated above.

I don't think a picture will help this time, my soldering has gotten better.
Well, a little better.

Thanks.

jglogau
 
Posts: 6
Joined: Thu Apr 29, 2021 12:29 am

Re: Adafruit 3.5" 320x480 Color TFT Touchscreen Breakout

by mikeysklar on Thu Jun 10, 2021 3:36 pm

"Unknown Driver Chip" is most likely a wiring problem. I think it is definitely the most suspect part of this process with 8 data lines and 4-5 control lines. Can you post a photo of your UNO wired up?

mikeysklar
 
Posts: 4920
Joined: Mon Aug 01, 2016 8:10 pm

Re: Adafruit 3.5" 320x480 Color TFT Touchscreen Breakout

by jglogau on Thu Jun 10, 2021 5:18 pm

Here are a couple of photos of the board with the Uno and breadboard.


PXL_20210610_210014137.jpg
PXL_20210610_210014137.jpg (587.23 KiB) Viewed 188 times


PXL_20210610_204852398.MP.jpg
PXL_20210610_204852398.MP.jpg (597.58 KiB) Viewed 188 times

jglogau
 
Posts: 6
Joined: Thu Apr 29, 2021 12:29 am

Re: Adafruit 3.5" 320x480 Color TFT Touchscreen Breakout

by jglogau on Fri Jun 11, 2021 9:25 am

My bad, got it running.

A combination of poor soldering and incorrect wiring.

Thank you for your time.

jglogau
 
Posts: 6
Joined: Thu Apr 29, 2021 12:29 am

Re: Adafruit 3.5" 320x480 Color TFT Touchscreen Breakout

by mikeysklar on Fri Jun 11, 2021 4:51 pm

Good work resolving this on your own. The photos were clear that some soldering was needed.

mikeysklar
 
Posts: 4920
Joined: Mon Aug 01, 2016 8:10 pm

Please be positive and constructive with your questions and comments.