SPI on Hui Qiao — Portfoliohttps://qh89.github.io/tags/spi/Recent content in SPI on Hui Qiao — PortfolioHugoen-usTue, 05 May 2026 00:00:00 +0000Seven-Segment Gesture Lockhttps://qh89.github.io/projects/seven-segment-gesture-lock/Tue, 05 May 2026 00:00:00 +0000https://qh89.github.io/projects/seven-segment-gesture-lock/Built a gesture-based combination lock using an LIS3DH accelerometer over SPI, with a seven-segment display for feedback and a custom gesture recognition algorithm.