While the Raspberry Pi has very good support for an I2C bus, a lot of very cool chips – including the in system programmer for just about every ATtiny and ATmega microcontroller – use an SPI bus.

This is a DIY electronics project article that teaches readers how to build a low-cost 3D LiDAR mapping system using a standard 2D LiDAR sensor, Python, and affordable hardware such as a Raspberry Pi ...