ESP8266 expander simple prototype with MCP23017Designed by roncoa in Italy
ESP8266 expander simple prototype Compact PCB to control up to 16 I/O via ESP8266 (D1 mini or ESP01). It has 230VAC power supply on board (optional) and 3.3V voltage regulator. The I/O are controll...Read More…
ESP8266 expander simple prototype
Compact PCB to control up to 16 I/O via ESP8266 (D1 mini or ESP01).
It has 230VAC power supply on board (optional) and 3.3V voltage regulator.
The I/O are controlled through the port expander (MCP23017) which uses the I2C protocol.
The dimensions of the PCB are 74x56x1.5 mm.
The dimensions of the PCB with all components mounted are 74x56x20 mm.
To work you need a firmware that manages the MCP23017 I2C expander.
The use of the "SmartHome" firmware is recommended.
It is available on GitHub at the following address: https://github.com/roncoa/SmartHome
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