{"id":8963,"date":"2022-06-05T09:00:18","date_gmt":"2022-06-05T13:00:18","guid":{"rendered":"https:\/\/dronebotworkshop.com\/?p=8963"},"modified":"2023-04-11T14:18:40","modified_gmt":"2023-04-11T18:18:40","slug":"gc9a01","status":"publish","type":"post","link":"https:\/\/dronebotworkshop.com\/gc9a01\/","title":{"rendered":"Using GC9A01 Round LCD Modules"},"content":{"rendered":"\n

\"Download<\/a> \"Parts<\/a> \"View<\/a><\/p>\n

We have used Liquid Crystal Displays in the DroneBot Workshop many times before, but the one we are working with today has a bit of a twist – it\u2019s a circle!\u00a0 Perfect for creating electronic gauges and special effects.<\/span><\/p>\n

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Introduction<\/span><\/h2>\n

LCD, or Liquid Crystal Displays, are great choices for many applications. They aren\u2019t that power-hungry, they are available in monochrome or full-color models, and they are available in all shapes and sizes.<\/span><\/p>\n

And speaking about shapes and sizes, the LCD module that we have on the workbench today is circular.\u00a0\u00a0<\/span><\/p>\n

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Today we will see how to use this display with both an Arduino and an ESP32. We will also use a pair of them to make some rather spooky animated eyeballs!<\/span><\/p>\n

GC9A01 IPS Display<\/span><\/h2>\n

The display we are using today is <\/span>manufactured by Waveshare<\/span><\/a>, there are also similar displays made by other manufacturers.<\/span><\/p>\n

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.<\/span><\/p>\n

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The module I used has the following specifications:<\/span><\/p>\n