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How to set up the Keyestudio Circular TFT LCD to work with an Arduino.

KS0454 keyestudio Circular TFT LCD Smart Watch Display Module instructions.

The KS0454 keyestudio Circular TFT LCD Smart Watch Display Module is a small screen available on Amazon for under $20. I bought this for a little project of mine, but the documentation is abysmal (Since publishing, I have found this helpful repo of information). So I thought I’d throw this little page up to let you know how I got it working. Hopefully it helps.

You, too, will soon be able to make fancy, blue triangles by the end of this article!! Excited?

First the existing documentation:

It’s all over the place, and under different model names. So here’s what I could find.

1. The KS0454 documentation wiki
2. The Arduino Library (listed as DFRobot_ST7687S)
3. The sample code (on Dropbox)

The pinout

The wiring at least was available on the wiki to a degree. I’ll post it here and clarify a little bit. This screen uses an SPI connection, meaning it has MOSI, Chip Select and all that good stuff. Connect your device like this first.

Here is the generic Arduino pinout:

1. SPI-MOSI (Main Output) → Pin 11 (MOSI)