[River] wanted to use a Raspberry Pi to bring the fans into his home automation system ... which converts a GPIO pin into a basic radio transmitter. Of course, the Pi’s GPIO pin’s aren ...

Raspberry Pi 4 runs pretty warm – not only the main processor ... A note on fans here: as far as I can find out, three-pin fans tend to have power in and a tachometer output, to which four-pin fans ...

Thanks to the addition of a new 4-pin header on the Raspberry ... the 3D bounding box volume of the Raspberry Pi at all. It adds cooling with a fan controlled over I2C. Even more bizarrely ...

Consultancy has designed a simple board called the Pico Indicator to add LEDs to the GPIO and power pins of the Raspberry Pi ...