st7789 tft display module brands

When you find these modules for sale, they are often mistakenly identified as an OLED display but they are in fact IPS LCD which has a similar wide viewing angle to OLED.

The module operates at 3.3V, so if using with a 5V MCU, be sure to include logic level shifters on the data lines to prevent possible damage.  The circuitry on the back of the module is just a transistor and a few resistors and a capacitor to provide backlight control.  The module does not have a 3.3V regulator on it and so must be powered from 3.3V.

In the above example, Node32-Lite and this 0.96-inch LCD.  Please refer to the tutorial here: ST7789 interfacing with ESP32 to make the connections, Arduino library installation, and modification needed for it to works on this LCD.

When you find these modules for sale, they are often mistakenly identified as an OLED display but they are in fact IPS LCD which has a similar wide viewing angle to OLED.

The module operates at 3.3V, so if using with a 5V MCU, be sure to include logic level shifters on the data lines to prevent possible damage.  The circuitry on the back of the module is just a transistor and a few resistors and a capacitor to provide backlight control.  The module does not have a 3.3V regulator on it and so must be powered from 3.3V.

In the above example, Node32-Lite and this 0.96-inch LCD.  Please refer to the tutorial here: ST7789 interfacing with ESP32 to make the connections, Arduino library installation, and modification needed for it to works on this LCD.

This is a 280 X 280 pixels TFT display module, with a 1.69inch display size making it a great fit for small size projects like wearable IoT or any other portable devices. The display’s driver IC is ST7789, which you can find many libraries to quickly start with.

There are several popular libraries out there that work with this display. It took me a little longer to get it working than I expected but that was because with no CS pin, the SPI mode needs to be set to SPI_MODE2. With that set, it works like a charm!

This display (like many others) is very fragile and will be damaged if it’s not protected. The one I received came in a small plastic box that no longer fit when I soldered the pins on so I cut a small hole in the box so the pins could stick through.