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2.8 TFT Capacitive Touch Shield issues with Arduino Uno
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2.8 TFT Capacitive Touch Shield issues with Arduino Uno

by idlethread on Sat Oct 23, 2021 4:41 pm

Hi,

I just got the 2.8" TFT (part no. 1947) delivered and after plugging it into my Arduino Uno R3 board, I only see a white screen.

I've installed v1.10.12 of the Adafruit GFX library and v1.5.9 of the ILI9341 library and when trying any of the examples I see output on the serial console but the TFT display stays white.

I believe this should work out of the box w/o any changes needs to the shield. Is it busted?

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Re: 2.8 TFT Capacitive Touch Shield issues with Arduino Uno

by idlethread on Tue Oct 26, 2021 3:31 am

@adafruit_support_bill, @adafruit, any help here?

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Re: 2.8 TFT Capacitive Touch Shield issues with Arduino Uno

by adafruit2 on Thu Oct 28, 2021 3:08 pm

can you post a photo of the two products and how they're connected + soldering? they should work.

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Re: 2.8 TFT Capacitive Touch Shield issues with Arduino Uno

by idlethread on Mon Nov 01, 2021 5:33 am

PXL_20211101_091746808.jpg
PXL_20211101_091746808.jpg (234.08 KiB) Viewed 79 times

PXL_20211101_091734816.jpg
PXL_20211101_091734816.jpg (200.08 KiB) Viewed 79 times

PXL_20211101_091709667.jpg
PXL_20211101_091709667.jpg (212.83 KiB) Viewed 79 times


@adafruit2, please find images attached. No soldering involved since this is an Arduino Uno R3.

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Re: 2.8 TFT Capacitive Touch Shield issues with Arduino Uno

by adafruit2 on Mon Nov 01, 2021 10:23 am

ok please run an i2c scan and post the output, that will test power/tft connection

https://learn.adafruit.com/scanning-i2c-addresses

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Re: 2.8 TFT Capacitive Touch Shield issues with Arduino Uno

by idlethread on Mon Nov 01, 2021 10:33 am

adafruit2 wrote:ok please run an i2c scan and post the output, that will test power/tft connection

https://learn.adafruit.com/scanning-i2c-addresses



I used the code on https://learn.adafruit.com/scanning-i2c ... es/arduino and got the following output:

Code: Select all | TOGGLE FULL SIZE
Scanning...
I2C device found at address 0x38  !
done

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Re: 2.8 TFT Capacitive Touch Shield issues with Arduino Uno

by idlethread on Tue Nov 02, 2021 2:47 pm

@adafruit2 anything else I can try? ^^^^

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