the Raspberry Pi 4 has six SPI controllers, six I2C controllers, and six UARTs – all on its 40-pin header. You can’t make use of all of these at once, but with up to four different connections ...

Raspberry Pi Pico microcontrollers come with a variety of different features for a few bucks, and a few interesting ...

What’s as fast as two Raspberry Pi 4s? The brand-new Raspberry ... Other connections include PoE on a four-pin header, an ARM debug / UART on a three pin header, and a JST battery connector ...