C++ for Embedded Systems and Arduino

Objects and classes without giving up hardware control.

C++ adds classes, which bundle data with the functions that use it. A Led class can hold its pin number and offer on() and off(), so main code reads like plain English.

Beginner boards such as Arduino use C++ behind a friendly layer. On small chips avoid heavy features: dynamic memory (new, malloc) can fragment tiny RAM, and exceptions inflate code size.

Good embedded C++ means classes, templates and const, with all memory allocated up front.

class Led {
  public:
    explicit Led(int p) : pin(p) {}
    void on()  { digitalWrite(pin, HIGH); }
    void off() { digitalWrite(pin, LOW); }
  private:
    int pin;
};

Led status(13);
void setup() { pinMode(13, OUTPUT); }
void loop()  { status.on(); delay(500); status.off(); delay(500); }