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 ...

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 ...

Userspace Raspberry Pi library for controlling WS281X LEDs. This includes WS2812 and SK6812RGB RGB LEDs Preliminary support is now included for SK6812RGBW LEDs (yes, RGB + W) The LEDs can be ...

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 ...