st7789 tft display quotation

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.

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.

This is a low-cost but powerful TFT display that makes your project look awesome! The display has 240 x 240 pixels resolution, and its size is only 1.3inch. This allows you to display a high-quality picture, to make your project really cool.

The module interface is SPI, to make the display small the CS pin is not breakout, but you can still drive it without connecting a CS pin, here is a library working library for this particular display, to make it working properly, you also need to install Adafruit’s GFX library.

David, thank you very much for suggesting investigating this as an ST7789-controlled display. I now am able to control the full display at once, and in the correct colors as well! Here is a short video showing the display working:

Although I now have this working, I would like to note a few things for anyone else that has trouble with this display and finds this thread. One is that when adding the diagnostics you provided to the ILI9341 example, the first ID value didn"t match the expected one of 0x85. The output is below:

Another thing I want to note for future information-seekers is that the initialization function seems to start the display up with the colors inverted. Simply setting it to false immediately after initialization will fix this:

Finally, if I am understanding your question correctly David, it seems that this is a controller which uses separate pins for data in and out. When I disconnect the MISO pin, the microcontroller is still able to control the display but does not receive any information back from the diagnostic (All reads are 0x0). With CS, SCLK, and MOSI as required inputs in addition to the optional MISO, would I be correct in saying that this display uses true 4-wire serial communication?

Hi, I try to connect a tft 240x240 display via SPI with my BPI m2zero and i am looking for a suitable library written in C. The display uses ST7789 driver and it will be used in combination with thermal camera. I"ve tried to use producers library for RPi https://www.waveshare.com/wiki/1.54inch_LCD_Module but the screen only blinks when i run a program with test bitmap. I tested it on Arduino and the display works fine. If someone was able to run such a display, can you share your library? Thanks for all the help