I'm stupid and didn't by the official Adafruit screen. I went with This 1.3" from MakerFocus. this is the specific part I got from the Zon.
I'm trying to get this working on Seeeduino Xiao.
I
I have the following libraries installed:
Adafruit ST7735 and ST7789 Library 1.6.0
Adafruit_GFX 1.10.1
I'm trying to understand what the deal is with CS, RST, and DC
#define TFT_CS 10
#define TFT_RST 9 // Or set to -1 and connect to Arduino RESET pin
#define TFT_DC 8
I'm using the 1.3" so I define the TFT like this
// For 1.14", 1.3", 1.54", and 2.0" TFT with ST7789:
Adafruit_ST7789 tft = Adafruit_ST7789(TFT_CS, TFT_DC, TFT_RST);
I'm connected to SDA and SCL the pinout direct from the pins on the EVB
I have VCC of the display going to 3.3V
BLK i(backlight) s going to 5V
I don't understand what reset (RES) and DC (SPI choice) is about.
The part gets good reviews from people that already know how to use it. I'm sure it's fine. I'm the one with the problem.
I'm trying to run graphicstest.ino. It compiles, and loads, I can see the backlight is on but I don't see those sweet sweet graphics.
I know there is no SD card on this version. I honestly have no idea why id need one if I'm just going to be drawing graphics.
After all this failing.... one day I'm gonna build cool sh!t.