How does one program a LCD to show the Sensor value of let's say a potentiometer. (Sorry if misspelled)
I usually put the sensor value into a string and then display that. The following example reads a sensor port and displays the raw value on the first line of the LCD and a converted value on the second line.
The comments may help you understand what's going on. The comments are, of course, non-functional.
// declare some string variables to hold the formatted information string outLine1 // this will hold what we want on the first line of LCD string outLine2; // this will hold what we want on second line of LCD int mySensorValue; // expanderPort is configured as an analog sensor in Motors and Sensor setup // we plugged an extension cable between the power expander status port and the analog port // read the value mySensorValue = SensorValue[expanderPort]; // format the value into a string sprintf(outLine1,"sensor is: %d",mySensorValue); // turn the integer value from sensor port into a floating point value // representing volts of the battery plugged into the power expander. // Then, format the information for printing. The "%f" in the format // string will be replaced by the floating point number calculated by the // division. sprintf(outLine2," %f Volts",(float)mySensorValue/270.0); clearLCDLine(0); clearLCDLine(1); displayLCDString(0,0,outLine1); displayLCDString(1,0,outLine2);
For your purposes, you could either define the analog port as a potentiometer or just set it to "analog". It won't change how you use the port.