We’ve gotten used to the GPIO-available functions of ... flown a little bit under the radar: the Raspberry Pi 4 has six SPI controllers, six I2C controllers, and six UARTs – all on its 40 ...

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

For years, Raspberry Pi has been known for ... t be connected via standard protocols like UART or I2C). It can also be used to convert some GPIO pins to existing protocols (such as extra SPI ...

Everything from DACs, rotary encoders, various (LCD, OLED) screens, official Raspberry Pi devices like the PoE HAT, soundcards and countless GPIO-, SPI- and I2C-related features and devices.