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Arduino Analog Expander


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Arduino Analog Expander. If you ran out of io pins with your esp8266 or any other mcu, adding an arduino nano can be an alternative to specialized chips. Pcf8591 (i2c analog i/o expander) fast easy usage:

Arduino Port Expanders Everything You Should Know ElectronicsHacks
Arduino Port Expanders Everything You Should Know ElectronicsHacks from electronicshacks.com

We simply power the module using gnd and vdd, and connect the i2c sda and scl pins. The arduino acts as a port expander,. The connection seen from arduino would be as follows.

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Arduino Port Expanders Everything You Should Know ElectronicsHacks

The arduino acts as a port expander,. We simply power the module using gnd and vdd, and connect the i2c sda and scl pins. Pcf8591 (i2c analog i/o expander) fast easy usage: This ic can control (until 4) analog input.

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