The MCP23017, a 16-bit I2C GPIO expander, has always been a tasty chip. With 16 GPIOs addressable over I2C, proper push/pull outputs, software-enabled pull-ups, eight addresses, maskable ...
The arduino code can be loaded into the arduino IDE by either downloading or cloning this repository and opening the .ino file in the arduino IDE.
This library is designed to control an MT8816 analog crosspoint switch using an MCP23017 GPIO expander. The MT8816 is a 16x8 crosspoint ... It's designed to simplify the process of controlling the ...
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.
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