Did You Know That The Raspberry Pi 4 Has More SPI, I2C, UART Ports?

We've gotten used to the GPIO-available functions of Raspberry Pi computers remaining largely the same over the years, which is why it might have flown a little bit under the radar: the Raspberry Pi 4

Onboard SC16IS752, can expand 2 serial ports and 8 programmable IOs through I2C, without occupying extra pins. Expansion chip: SC16IS752. A serial

Raspberry Pi 2B/3B+/4B Zero W Serial Port Expansion SC16IS752 IIC I2C SPI

Arduino Communication Peripherals: UART, I2C and SPI - Latest Open Tech From Seeed

Emulates 24 out of 29 Raspberry Pi GPIO pins Pin compatible I2C, SPI and three UART ports WiFi and Bluetooth (low energy), 10/100 Mbps RJ45 Ethernet

ESP32-Pi a Low Cost Raspberry Pi Alternative Using ESP32

UART vs I2C vs SPI – Communication Protocols and Uses - Latest Open Tech From Seeed

I2C, SPI, UART Data Communications on the Raspberry Pi

Overview, Using ATSAMD21 SERCOM for more SPI, I2C and Serial ports

RaspberryPi 4B/3B Expansion Board With SPI To RS232 Serial Port Module – Genova Industrial

Raspberry Pi Arduino Serial Communication - Everything You Need To Know - The Robotics Back-End

Click Shield for Pi Pico

Raspberry Pi Enters Microcontroller Game With $4 Pico

Raspberry Pi as a home server, by Remo Hoeppli