# GMT020-02 Vers 1.1 240x320 display

**URL:** <https://forum.arduino.cc/t/gmt020-02-vers-1-1-240x320-display/1109705>\
**Category:** Displays\
**Created:** [April 1, 2023, 2:49pm UTC](https://forum.arduino.cc/t/gmt020-02-vers-1-1-240x320-display/1109705 "2023-04-01T14:49:33Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![wo19zcx](https://avatars.discourse-cdn.com/v4/letter/w/a88e57/32.png) [@wo19zcx](https://forum.arduino.cc/u/wo19zcx)\
**Post date:** [April 1, 2023, 2:49pm UTC](https://forum.arduino.cc/t/gmt020-02-vers-1-1-240x320-display/1109705/1 "2023-04-01T14:49:33Z")

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I recently bought this 2" display from Aliexpress. It has 7 pins and the display is supposedly an SPI interface but the active pins are labelled SCL, SDA, RST DC,CS. which look more like pins from an I2C display. I want to use it on a Nano. Can anyone convert the MISO,MOSI,SS to the corresponding pins on the display

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**Author:** ![alhenriq](https://dub1.discourse-cdn.com/arduino/user_avatar/forum.arduino.cc/alhenriq/32/378987_2.png) [@alhenriq](https://forum.arduino.cc/u/alhenriq)\
**Post date:** [July 9, 2023, 8:50pm UTC](https://forum.arduino.cc/t/gmt020-02-vers-1-1-240x320-display/1109705/2 "2023-07-09T20:50:43Z")

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I know this was very frustrating since very little information was provided. So I used a basic TFT library from adafruit for st7789 - I used xiao esp32c3 - and based on the pin-out I mapped the corresponding I2C to SPI pin layout, e.g SDA to my esp32-MOSI pin, SCL to SCLK, CS to my SS , and the other pins you define accordingly.  
This was my layout

#define TFT\_CS 20  
#define TFT\_RST 5  
#define TFT\_DC 21  
#define TFT\_MOSI 10  
#define TFT\_SCLK 8

Adafruit\_ST7789 tft = Adafruit\_ST7789(TFT\_CS, TFT\_DC, TFT\_MOSI, TFT\_SCLK, TFT\_RST);

good luck.

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**Author:** ![fengyitian](https://dub1.discourse-cdn.com/arduino/user_avatar/forum.arduino.cc/fengyitian/32/1009821_2.png) [@fengyitian](https://forum.arduino.cc/u/fengyitian)\
**Post date:** [October 24, 2023, 6:54am UTC](https://forum.arduino.cc/t/gmt020-02-vers-1-1-240x320-display/1109705/3 "2023-10-24T06:54:02Z")

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I am glad to see our product has been discussed on the forum. I'm delighted that it's generating interest. While I might not have the technical solution you're looking for at the moment, I'm here to assist you in any way I can. If you still have questions or need support, please feel free to reach out.  
[gmt020-02](https://goldenmorninglcd.com/tft-display-module/2-inch-240x320-st7789v-gmt020-02/)

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**Author:** ![system](https://dub1.discourse-cdn.com/arduino/user_avatar/forum.arduino.cc/system/32/1140315_2.png) [@system](https://forum.arduino.cc/u/system)\
**Post date:** [April 21, 2024, 6:54am UTC](https://forum.arduino.cc/t/gmt020-02-vers-1-1-240x320-display/1109705/4 "2024-04-21T06:54:15Z")

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Closed on April 21, 2024, 6:54am UTC

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