SPI – Show PM2.5 Concentration on ILI9341 TFT LCD
If you are not familiar with SPI, please read Introduction to SPI first.
Open the example, “Files” → “Examples” → “AmebaSPI” → “ILI9341_TFT_LCD_PM2.5”
Compile and upload to Ameba, then press the reset button.
Then you can see the concentration value of PM1.0, PM2.5 and PM10 on the LCD.
In this example, first rotate the screen by 90 degrees, and draw the static components such as the circles, the measuring scale, and the title text. After the concentration value is detected, it is printed inside the circle.