waveshare 1.44 inch lcd display hat for raspberry pi install quotation

The ST7735S is a 132*162 pixel LCD controller, but the pixel of the 1.44inch LCD HAT is 128*128. So we have made some processing on the display: the horizontal direction starts from the second pixel to guarantee the location of RAM in the LCD is consistent with the actual location at the same time.

Note: Different from the traditional SPI protocol, the data line from the slave to the master is hidden since the device only has a display requirement.

The final display effect is scaled and displayed on the 1.3inch LCD in proportion. The setting of the resolution here should be slightly larger than the LCD resolution, the too high resolution will cause the font display to be blurred.

【Note】The mouse.py needs to run under the graphical interface, which will not run under the SSH login. You can skip this step directly, the Pi will run the demo automatically by booting up.

Be careful not to add it to /etc/rc.local, because rc.local will be executed before the system enters the desktop, and if the PyMouse module runs on the command line interface, it will report an error that there is no mouse event, so we need to execute the following:

If fbtft is turned on, spidev0.0 will be occupied after restarting. If you need to run the demo at this time, you need to comment out the lines corresponding to fb in /etc/modules.

The final display effect is scaled and displayed on the 1.3inch LCD in proportion. The setting of the resolution here should be slightly larger than the LCD resolution, the too high resolution will cause the font display to be blurred.

【Note】The mouse.py needs to run under the graphical interface, which will not run under the SSH login. You can skip this step directly, the Pi will run the demo automatically by booting up.

Be careful not to add it to /etc/rc.local, because rc.local will be executed before the system enters the desktop, and if the PyMouse module runs on the command line interface, it will report an error that there is no mouse event, so we need to execute the following:

This is a LCD display HAT for Raspberry Pi, 1.44inch diagonal, 128x128 pixels, with embedded controller, communicating via SPI interface. It also comes with three push button and a joystick, a good option as user interface panel for your Raspberry Pi Zero :)

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