The MCP23008 is a general purpose programmable 8-Channel digital input/output controller. It is an ideal solution for low-cost digital input/output applications.
In this design, we make all 8 pins available for user applications via a small terminal block. The address of the MCP23008 begins at 0x32, up to 8 of these chips may be shared on a single I²C port.
All I²C Mini Modules are designed to operate at 5VDC. Using a convenient 4-Pin plug, devices can be daisy-chained onto the I²C Bus, eliminating the need for soldering. Simply plug together the devices you need for your next automation application.