mBed
In this example we will connect an LM35 temperature sensor to our Nucleo board and we will be using the MBed compiler The LM35 series are precision integrated-circuit temperature sensors,.
The PCF8574 is an 8 bits I/O port expander that uses the I2C protocol. Using this IC, you can use only the SDA and SCL pins of your Arduino board.
In this example we connect an LCD to our mbed LPC1768 and display some text on it, we use a library to do most of the hard work here so.