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 ...

This idea had been floating around in [waterbury]’s head for years now, and with a Raspberry Pi ... need 16 address pins, 8 data pins, 8 bank control pins and 4 other control pins to be read ...

Power over Ethernet (PoE) is nothing new to the Raspberry Pi. Introduced with the Raspberry Pi 3B+, PoE provides power over a network connection and is handy for installing a Raspberry Pi in a ...