Almost a week I tried to make this display worked. I tried few pinouts combination and few library and still it won't work. Finally I managed to get this display working with Ucglib library and help from internet and doing trial and error.
There are several type of this display on the internet. You can search this kind of display and it's variation. But the one I have sadly has common problem. Here is mine.
And here is in the back of the lcd.
Wiring
The pinouts could be different on other type. But here are the pinouts that working for me. Note that first pin is GND. All pin used are digital pins.
- GND <-----> GND
- VCC <-----> 5v
- RESET (RST) <-----> PIN 8 (in series with 1K resistor)
- AO (DC) <------> PIN 9 (in series with 1K resistor)
- SDA <-----> PIN 11 (in series with 1K resistor)
- SCL <------> PIN 13 (in series with 1K resistor)
- CS <-----> PIN 10 (in series with 1K resistor)
- LED+ <-----> 3.3v
- LED- <-----> GND
I need to add resistor in series with all used pins. I found this resistors make better color contrast. Maybe the lcd pinouts was intended to work on 3.3v.
Libraries
Install Ucglib library from Arduino Libraries or you can download it from link on the top.
Testing
Download my test sketch on: https://github.com/satujamsaja/Arduino/tree/master/spitft1.8 it should show like below. My other sketch will display sensors results. You can download it on this link https://github.com/satujamsaja/Arduino/tree/master/spitftdht22bmp280 and also check the sensors wiring on my previous posts.
Good Luck.
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