gc9a01 1.28 inch round lcd module free sample

LCD, or Liquid Crystal Displays, are great choices for many applications. They aren’t that power-hungry, they are available in monochrome or full-color models, and they are available in all shapes and sizes.

Waveshare actually has several round LCD modules, I chose the 1.28-inch model as it was readily available on Amazon. You could probably perform the same experiments using a different module, although you may require a different driver.

Open the Arduino folder. Inside you’ll find quite a few folders, one for each display size that Waveshare supports. As I’m using the 1.28-inch model, I selected theLCD_1inch28folder.

Once you do that, you can open your Arduino IDE and then navigate to that folder. Inside the folder, there is a sketch file namedLCD_1inch28.inowhich you will want to open.

Unfortunately, Waveshare doesn’t offer documentation for this, but you can gather quite a bit of information by reading theLCD_Driver.cppfile, where the functions are somewhat documented.

This library is an extension of the Adafruit GFX library, which itself is one of the most popular display libraries around. Because of this, there isextensive documentation for this libraryavailable from Adafruit.  This makes the library an excellent choice for those who want to write their own applications.

Here is the hookup for the ESP32 and the GC9A01 display.  As with most ESP32 hookup diagrams, it is important to use the correct GPIO numbers instead of physical pins. The diagram shows the WROVER, so if you are using a different module you’ll need to consult its documentation to ensure that you hook it up properly.

The Animated Eyes sketch can be found within the sample files for the TFT_eSPI library, under the “generic” folder.  Assuming that you have wired up the second GC9A01 display, you’ll want to use theAnimated_Eyes_2sketch.

The GC9A01 LCD module is a 1.28-inch round display that is useful for instrumentation and other similar projects. Today we will learn how to use this display with an Arduino Uno and an ESP32.

This watch-shaped round IPS LCD can be useful for various creative applications such as smart wearables. This circular IPS LCD has a 1.28-inch round screen that supports multicolor RGB with 65K bit depth (color levels). It is a 240x240 pixels LCD. This circular LCD module is compatible with the SPI (4-Wire) communication interface. You can use this 1.28-inch circular IPS LCD with most boards that are compatible with the 4-Wire SPI interface. The watch-shaped LCD module has an onboard controller GC9A01 embedded driver chip. Development resources, manuals, and examples are included for Arduino, Raspberry Pi, and STM32.

The 1.28" Round LCD Breakout is a 1.28-inch display breakout with 240 x 240 resolution, 65K RGB colours, and a clear and colourful displaying effect meant to help gadgets increase their interaction via SPI connection by providing a GPIO header for easy interface. The GC9A01 display driver and SPI interface are integrated into the 1.28" Round LCD Breakout, decreasing the number of IO pins required.