Do you want a crazy amount of Digital Input and Output (Digital I/O) in a small space without upgrading your microcomputer?
You can achieve this with the DIGIO-128 super-mega digital I/O card. The DIGIO-128 lets you add 128 GPIO (General Purpose Input/Output) lines, thanks to the Microchip MCP23017, which is a 16-bit general purpose parallel I/O port expander with I2C two wire serial interface and 28-pin ICs that supports 100kHz and 400kHz.
The 128 digital I/O lines are accessed via 8 I/O connector pins, each offering 16 digital I/O, 2 power and 2 ground. The distance between the pin connectors (pitch) is 0.1″. DIGIO-128 uses 8 Microchip MCP23017 in total, offering 16 inputs or outputs each and a maximum of 128 extra I/O ports.
Adafruit publishes a wide range of writing and video content, including interviews and reporting on the maker market and the wider technology world. Our standards page is intended as a guide to best practices that Adafruit uses, as well as an outline of the ethical standards Adafruit aspires to. While Adafruit is not an independent journalistic institution, Adafruit strives to be a fair, informative, and positive voice within the community – check it out here: adafruit.com/editorialstandards
Stop breadboarding and soldering – start making immediately! Adafruit’s Circuit Playground is jam-packed with LEDs, sensors, buttons, alligator clip pads and more. Build projects with Circuit Playground in a few minutes with the drag-and-drop MakeCode programming site, learn computer science using the CS Discoveries class on code.org, jump into CircuitPython to learn Python and hardware together, TinyGO, or even use the Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for CircuitPython, MakeCode, and Arduino. It has a powerful processor, 10 NeoPixels, mini speaker, InfraRed receive and transmit, two buttons, a switch, 14 alligator clip pads, and lots of sensors: capacitive touch, IR proximity, temperature, light, motion and sound. A whole wide world of electronics and coding is waiting for you, and it fits in the palm of your hand.
Have an amazing project to share? The Electronics Show and Tell is every Wednesday at 7:30pm ET! To join, head over to YouTube and check out the show’s live chat and our Discord!
Python for Microcontrollers – Adafruit Daily — Python on Microcontrollers Newsletter: New Python Releases, an ESP32+MicroPython IDE and Much More! #CircuitPython #Python #micropython @ThePSF @Raspberry_Pi
EYE on NPI – Adafruit Daily — EYE on NPI Maxim’s Himalaya uSLIC Step-Down Power Module #EyeOnNPI @maximintegrated @digikey
