How do i convert the below Arduino Code to Embedded c code?

Question

Can Anyone Please Convert the following Arduino Code to Embedded c code? I am very thankful to the one who converts this to an embedded c code. (this code is for Arduino lcd interfacing with Ultrasonic sensor)

    #include <LiquidCrystal.h>
      int inches = 0;
      int cm = 0;

      // initialize the library with the numbers of the interface pins
      LiquidCrystal lcd(12, 11, 5, 4, 3, 2);

      void setup() {
        // set up the LCD's number of columns and rows:
        lcd.begin(16, 2);
        // Print a message to the LCD.
        pinMode(7, INPUT);
      }

      void loop() {
        lcd.clear();
        cm = 0.01723 * readUltrasonicDistance(7);
        inches = (cm / 2.54);
        if (cm<40){
        lcd.setCursor(0, 0);
        // print the number of seconds since reset:
        lcd.print("Caution: ");
        lcd.setCursor(0,1);
        lcd.print("Objects Nearby");
        delay(1000);
        }
      }

      long readUltrasonicDistance(int pin)
      {
        pinMode(pin, OUTPUT);  // Clear the trigger
        digitalWrite(pin, LOW);
        delayMicroseconds(2);
        // Sets the pin on HIGH state for 10 micro seconds
        digitalWrite(pin, HIGH);
        delayMicroseconds(10);
        digitalWrite(pin, LOW);
        pinMode(pin, INPUT);
        // Reads the pin, and returns the sound wave travel time in microseconds
        return pulseIn(pin, HIGH);
      }

Hello and welcome to Stackoverflow! Please be aware that this site does not offer any code translation service. Have a look at the FAQ on how to ask good questions so that someone would be able to help you. — Michael Heil
– Michael Heil, Commented Apr 14, 2020 at 10:53
Arduino is already embedded C code - just with some handy libraries... Are you trying to find the source code for these Arduino standard functions? You already have them - \arduino\hardware\arduino\cores\arduino look in the directory. — Rohan
– Rohan, Commented Apr 14, 2020 at 11:12
It already is code for the atmega328P. You don't need to change anything. — Delta_G
– Delta_G, Commented Apr 14, 2020 at 17:06
If you want the machine code for atmega328p code, just compile it using Arduino IDE for instance. — Tom
– Tom, Commented Apr 15, 2020 at 8:13

simonecocco · Accepted Answer · 2020-04-16 09:24:04Z

1

I'm sorry but you can't because the dependencies of this code are LiquidCrystal.h (written in C++ and it contains dependencies like Arduino.h or Wire.h, libraries exclusive of Arduino software) and because methods like pinMode(int,int),digitalWrite(int,int),delayMicroseconds(int) comes from Arduino.h.
You can make your LiquidCrystal library rewriting it from the original.
Here some resources: C header and source, compile and upload, setup, standard avr libs.
I hope this can help. Good luck!

answered Apr 16, 2020 at 9:24

simonecocco

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dev_eng · Accepted Answer · 2020-04-17 03:09:54Z

1

You can do that but is bit painful. Convert the class based function into c type functions. Remove dependant functions and replace the function by your own. and use int main(void) instead of void loop().

answered Apr 17, 2020 at 3:09

dev_eng

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