WS281X: 3 Pin Led strips - D0, GND, +5 VCC Make Sure to give common Ground between RPI and the strip, regardless you are using an external power supply or not.

Perhaps you’ve got a spare Raspberry Pi lying around, or you are so well-known in your family for having a Raspberry Pi obsession that you can confidently expect to receive a fair few Pi-related ...

Using Python to Program Raspberry Pi 5 for IoT Devices, Sensors, & Robotics Raspberry Pi 5 SPI and I2C portals can run IoT devices as well as robotics motors and sensors. Fred Eady October 1, 2024 6 ...

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.