The installed PiDP-11 I/O Expander Each expander board gives you 16 GPIO pins which can be accessed over I2C, including support for interrupts which has been connected to GPIO 19 on the Raspberry Pi.

Adafruit released a blog post detailing plans to create a new PCB called Fruit Jam inspired by the Raspberry Pi Pico Ichigo ...

Explore a small board with sensors, versatile pins, and multiple connectivity options—designed for IoT projects. Read more!

One possible way to do so is suggested by [Doctor Volt] in a video where a Samsung Galaxy S4 is combined with a USB-connected FT232R board to add external GPIO. The idea is pretty simple ...

The board is a cost-effective, flexible platform for anyone looking to develop projects using the RP2040 microcontroller, ...

This paper provides a complete solution to the GPIO Verification for any SoC. GPIO interface is available in every ASIC. To avoid duplicate efforts and (save) time to verify the GPIO interface, we ...