How to build a circular LCD clock

A developer published a guide on building a wall clock using a circular LCD screen and a Raspberry Pi, according to a blog post. The author said the project was motivated by the lack of a visible clock in their kitchen. The hardware list includes a Waveshare 7-inch circular LCD display with a 1080 by 1080 pixel resolution, a Raspberry Pi 3 through 5, a microSD card, power supply, and cables. The author said a Raspberry Pi 4 offers a good balance of processing power and price, noting that a Pi Zero 2 had insufficient RAM to run a modern browser. The guide details assembly, operating system setup using Raspberry Pi OS, and remote access via VNC. It also covers touch gesture configuration and brightness control methods, which differ between Pi models. For the Pi 3, the author used the gammastep program for software dimming. For the Pi 4 and 5, a Python script controls the screen's hardware brightness via the USB interface. The author created several custom clock faces, including a Swiss railway clock, a minimalist time scale, a cartoony face, and a squared design, accessible via a personal website.