Weird pinout on TFT SPI board

Thread Starter

benjo123

Joined Jan 7, 2024
2
Hi All, does anyone has seen or worked with this TFT display board?



1000008375.png


The seller claims that is **GC9A01** driver board but i doubt it. I tried every example i can find including the GC9A01, ST7789, ST7735 libraries but nothing happens except the backlight is turning on and of.
Another thing that i found it weird is that all other board that they [sell](https://fr.aliexpress.com/item/1005005802513979.html?src=google&aff_fcid=3a9497fd07c64ccc893571e6aa4e62f8-1704228928955-07624-UneMJZVf&aff_fsk=UneMJZVf&aff_platform=aaf&sk=UneMJZVf&aff_trace_key=3a9497fd07c64ccc893571e6aa4e62f8-1704228928955-07624-UneMJZVf&terminal_id=06909bf218f644128f47d3dfc5c7cee9&afSmartRedirect=y) have the pinout:


**- RST**
\- **CS,**
\- **DC,**
\- **SDA,**
\- **SCL,**
\- **GND,**
\- **VCC**
\- **(+/- BLK)**


But mine (the red one) has:


**- LED(same as BLK)**
\- **SCK**
\- **SDA -**
\- **A0/DC** (this one especially weird, i think is used to select between command and data modes**),**
\- **RESTART,**
\- **CS,**
\- **GND,**
\- **VCC**


The other (TF-\*) i believe are for the SD card reader.


Any help is welcomed, im using Arduino nano if that helps it to narrow it down.
 

Thread Starter

benjo123

Joined Jan 7, 2024
2
Thanks Jon.

The only thing that i was able to figure out is the correct pin usage:

**- LED(same as BLK)**
\- *SCK* - Same as SCL/SCLK
\- *SDA -* - Same as DIN
\- *A0/DC* -
\- *RESTART,*
\- *CS,*
\- *GND,*
\- *VCC*

Even though i used the library that is recommended in the tutorial im still getting a blank screen...
Ive tested both on the Arduino nano and on nodeMCU but still no luck.

Do you have any other suggestions?
 
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