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 ...

In addition to being a serviceable single board computer, the Raspberry Pi also has a header full of GPIO pins at your beck and call. [Tedbot] sent in a great tutorial on using these pins with Python, ...

Expose the Raspberry Pi GPIO pins and/or external IO modules to an MQTT server. This allows pins to be read and switched by reading or writing messages to MQTT topics. Or to receive updates on the ...

Welcome to the WiringPi Library, the highly performant GPIO access library for Raspberry Pi boards. This library is written in C and is designed to provide fast and efficient control of the GPIO pins ...

The Raspberry Pi 5 is a fantastic little computing machine. However, no matter how powerful the Raspberry Pi 5’s CPU may be, the Raspberry Pi 5 would be a useless lump of silicon and FR4 without a ...

Co-creator of the awesome HDMIPi monitor Alex Eames, as well as other useful Raspberry Pi add-ons has this week launched a new campaign for his useful Raspberry Pi GPIO Quick Reference Ruler. The ...

How much can you cram into a 2.6 in x 1.2 in circuit board? You'd presume not much, but the Raspberry Foundation is trying to prove you wrong. First, it added built-in Wi-Fi to its teeny Raspberry Pi ...

Raspberry Pi owners looking to use higher voltages with their mini PC, might be interested in this new opto-isolator board called the Opto-pi which has been specifically designed to be used with the ...