We’ve gotten used to the GPIO-available functions of Raspberry Pi computers ... the Raspberry Pi 4 has six SPI controllers, six I2C controllers, and six UARTs – all on its 40-pin header.

Now Pi boards have their tiny bits and bigger pieces soldered at the same time through an intrusive reflow soldering process ...

His latest creation is the Mini Server version 3, a modular enclosure system for the Raspberry Pi 4, is designed to turn ... t allow external access to the GPIO ports, but the entire project ...