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.
Make a robot friend with Adafruit’s CRICKIT – A Creative Robotics & Interactive Construction Kit. It’s an add-on to our popular Circuit Playground Express, FEATHER and other platforms to make and program robots with CircuitPython, MakeCode, and Arduino. Start controlling motors, servos, solenoids. You also get signal pins, capacitive touch sensors, a NeoPixel driver and amplified speaker output. It complements & extends your boards so you can still use all the goodies on the microcontroller, now you have a robotics playground as well.