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.

More often than not, an IoT master device uses the SPI (serial peripheral interface) and I 2 C (inter-integrated circuit) protocols to exchange data with EEPROMs or sensors that are operating in slave ...

We’ve gotten used to the GPIO-available functions of Raspberry Pi computers remaining largely the same over the years, which is why it might have flown a little bit under the radar: the Raspberry Pi 4 ...

This module contains python routines to program the WS2812 RGB LED chips on the raspberry, using the hardware SPI MOSI (so no other hardware is needed) As the WS2812 communication needs strict timing, ...

CardLink is a Python-based SD card validation and FAT32 exploration project built for Raspberry Pi SPI environments. It combines low-level SPI command handling, lightweight FAT32 navigation helpers, a ...

Raspberry Pi’s microcontroller, the RP2040, has some unusual features. And one of these is the i-o state machine, of which there are eight. spread over two ‘PIO blocks’ – (one shown right). According ...

I2C makes connecting multiple sensors to a Raspberry Pi straightforward by sharing just two pins for communication. With proper setup, scanning, and coding, you can integrate dozens of devices on a ...