Assume that you are moving towards a complex microcontroller project bundled with blinkers, beepers, and a display panel. To link a standard 16×2 LCD directly with the microcontroller, for instance ...
// Scans the I2C bus and prints any found device addresses (in hex) to the Serial console. // Buy this module: https://shillehtek.com/products/pcf8574-i2c-serial ...
2025-07-03: v2.0.0 - read()and write() have been replaced by port_input(), port_output() and other pin operations, as jm_PCF8574 is not inherited from Printor Stream Arduino classes. Also, the I2C bus ...
A while ago I received a couple of I/O port expander modules that use the I 2 C protocol. Using that Chinese module, you can use only the SDA and SCL pins of your Arduino, or any microcontroller ...
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