Learn Arduino-c-cpp - 3 Code Examples & CST Typing Practice Test

Arduino C/C++ refers to programming Arduino microcontrollers using the C and C++ languages, enabling control of sensors, actuators, and electronics for embedded and DIY projects.

View all 3 Arduino-c-cpp code examples →

Blink an LED Read Analog Sensor Control Servo Motor

Learn ARDUINO-C-CPP with Real Code Examples

Updated Nov 27, 2025

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Code Sample Descriptions

Blink an LED

void setup() {
    pinMode(13, OUTPUT);
}

void loop() {
    digitalWrite(13, HIGH);
    delay(500);
    digitalWrite(13, LOW);
    delay(500);
}

Toggle an LED on pin 13 every 500 ms.

Let’s Try →

Read Analog Sensor

void setup() {
    Serial.begin(9600);
}

void loop() {
    int sensorValue = analogRead(A0);
    Serial.println(sensorValue);
    delay(100);
}

Read a potentiometer value and print it to the serial monitor.

Let’s Try →

Control Servo Motor

#include <Servo.h>
Servo myServo;

void setup() {
    myServo.attach(9);
}

void loop() {
    for(int pos = 0; pos <= 180; pos++) {
        myServo.write(pos);
        delay(15);
    }
    for(int pos = 180; pos >= 0; pos--) {
        myServo.write(pos);
        delay(15);
    }
}

Sweep a servo motor from 0° to 180° and back.

Let’s Try →

Frequently Asked Questions about Arduino-c-cpp

What is Arduino-c-cpp?

Arduino C/C++ refers to programming Arduino microcontrollers using the C and C++ languages, enabling control of sensors, actuators, and electronics for embedded and DIY projects.

What are the primary use cases for Arduino-c-cpp?

Prototyping electronic circuits and devices. Learning embedded programming for beginners. Building IoT and sensor-based projects. Automating small devices and robotics. Testing and debugging microcontroller concepts

What are the strengths of Arduino-c-cpp?

Easy to learn for beginners. Large community support and tutorials. Rapid prototyping with plug-and-play hardware. Cross-platform development with minimal setup. Extensive library ecosystem for sensors, displays, and connectivity

What are the limitations of Arduino-c-cpp?

Limited computational power and memory. Not suitable for high-performance or multi-threaded applications. Timing-critical applications can be tricky. Limited real-time OS support. Some boards have fewer I/O pins, limiting complex projects

How can I practice Arduino-c-cpp typing speed?

CodeSpeedTest offers 3+ real Arduino-c-cpp code examples for typing practice. You can measure your WPM, track accuracy, and improve your coding speed with guided exercises.

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Code Sample Descriptions

Blink an LED

void setup() {
    pinMode(13, OUTPUT);
}

void loop() {
    digitalWrite(13, HIGH);
    delay(500);
    digitalWrite(13, LOW);
    delay(500);
}

Toggle an LED on pin 13 every 500 ms.

Let’s Try →

Read Analog Sensor

void setup() {
    Serial.begin(9600);
}

void loop() {
    int sensorValue = analogRead(A0);
    Serial.println(sensorValue);
    delay(100);
}

Read a potentiometer value and print it to the serial monitor.

Let’s Try →

Control Servo Motor

#include <Servo.h>
Servo myServo;

void setup() {
    myServo.attach(9);
}

void loop() {
    for(int pos = 0; pos <= 180; pos++) {
        myServo.write(pos);
        delay(15);
    }
    for(int pos = 180; pos >= 0; pos--) {
        myServo.write(pos);
        delay(15);
    }
}

Sweep a servo motor from 0° to 180° and back.

Let’s Try →

Frequently Asked Questions about Arduino-c-cpp

What is Arduino-c-cpp?

Arduino C/C++ refers to programming Arduino microcontrollers using the C and C++ languages, enabling control of sensors, actuators, and electronics for embedded and DIY projects.

What are the primary use cases for Arduino-c-cpp?

What are the strengths of Arduino-c-cpp?

What are the limitations of Arduino-c-cpp?

How can I practice Arduino-c-cpp typing speed?

CodeSpeedTest offers 3+ real Arduino-c-cpp code examples for typing practice. You can measure your WPM, track accuracy, and improve your coding speed with guided exercises.