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Forum Index : Microcontroller and PC projects : 2.2" TFT

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palcal

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Joined: 12/10/2011
Location: Australia
Posts: 1989
Posted: 07:27am 30 Dec 2024
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I was looking for a 2.2" display and bought one of these  Display
On a MM backpack it sits a bit offset but all I get is the backlight.
Can any one point me to a 2.2" display that works.
"It is better to be ignorant and ask a stupid question than to be plain Stupid and not ask at all"
 
phil99

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Joined: 11/02/2018
Location: Australia
Posts: 2611
Posted: 07:52am 30 Dec 2024
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It isn't clear what chip is on the display.
  Quote  ILI9341 51/AVR/STM32/ARM/PIC L2KO
All I can suggest is look for one that only shows ILI9341.

The photo in the add shows a regulator U1  with a bypass jumper J1.
Check that you have 5V in and 3.3V out if J1 is open. If your supply is 3.3v bridge J1.
 
disco4now

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Joined: 18/12/2014
Location: Australia
Posts: 1000
Posted: 07:52am 30 Dec 2024
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If you are powering VCC at 3.3V you should bridge J1 to bypass the regulator. It appears to be one that should  work. Did you try GUI TEST LCDPANEL to verify it does not have just have colours inverted.
P.S.
What he said.
Edited 2024-12-30 17:53 by disco4now
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palcal

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Joined: 12/10/2011
Location: Australia
Posts: 1989
Posted: 08:21am 30 Dec 2024
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Running at 5v. I took the 2.4" screen off a working project and when I connected this one all I get is a back light. Didn't do a GUI test touch, I'll do it tomorrow.
"It is better to be ignorant and ask a stupid question than to be plain Stupid and not ask at all"
 
disco4now

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Joined: 18/12/2014
Location: Australia
Posts: 1000
Posted: 09:19am 30 Dec 2024
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That is GUI TEST LCDPANEL , there is no touch on those 2.2" screens.
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palcal

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Joined: 12/10/2011
Location: Australia
Posts: 1989
Posted: 08:38pm 30 Dec 2024
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Yes I meant LCDPANEL, I know it doesn't have touch.
"It is better to be ignorant and ask a stupid question than to be plain Stupid and not ask at all"
 
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