Hello World with LCD Keypad Shield #Learn Arduino

Hello World with LCD (liquid crystal display) keypad shield. Another simple #arduino project. #microcontrollers #helloworld #electronics #lcd #c

Foto kiriman Hani (read:honey) (@hanifadinna) pada Agu 24, 2015 pada 1:25 PDT

I already found very useful code to display the character with the LCD.




Happy share :)

Playing The Melody

Play Twinkle-twinkle Little Star with #piezo #buzzer controlled by #arduino. Another simple example of Arduino project. On the way to learn Arduino. #microcontrollers #electronics #sound #c

Video kiriman Hani (read:honey) (@hanifadinna) pada Agu 21, 2015 pada 7:36 PDT

This weekend I added up some instrument called piezo buzzer. We can play the tone, and as the beginner I started with the example from here . The copied code is here

Controlling the LED Brightness #Learn Arduino

Finally I can go up from blink to another basic of Arduino. In this circuit we can control the brightness of LED with potentiometer.LED brightness is determined from the position knob on the potentiometer.

Some material we need:

• Arduino (I am using Arduino UNO)
• LED
• Potentiometer 10K ohm
• 330 Ohm resistor
• PC/laptop
• Breadboard
• 6 jumperwire
• Data cable from Arduino to PC 

 Here is the code that we can simply copying from Arduino IDE example:


the new things we learn in here is "sensorPin =A0". It means that we select the input pin for the potentiometer. To read the value from the sensor we just type "sensorValue = analogRead(sensorPin);"  inside the loop.

Blink LED #Learn Arduino

Up from hello world, now we go little bit further to make the LED blinking.

Some material we need:

• Arduino (I am using Arduino UNO)
• LED
• 330 Ohm resistor
• PC/laptop
• Breadboard
• 3 jumperwire
• Data cable from Arduino to PC

This is the code, and it's available on the example of Arduino IDE Software with title "Blink"


"high" means 5V supply and make the LED is ON and
"low" meand 0V supply and make the LED is OFF.

The LED will be ON and OFF repeatedly every 1 second  that's because we put the code on the loop.

Hello World Repeated #Learn Arduino

Modifying from the previous, here I would like to make the "hello world"  appear repeatedly.

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//Learn Arduino-Hello world Repeatedly-Hanifadinna

void setup () {
  Serial.begin(9600); //open serial port with speed 9600 bit per second
}

void loop () {
 delay(10000);  // delay time 10 second
 Serial.println("Hello world");  //print out the hello world
}
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 Verivy, uplod and we just simply type "ctrl+shift+M" to show the print of "hello world", and then we got this from serial monitor.

To make the hello world appear repeatedly is because we put :

 delay(10000);  // delay time 10 second
 Serial.println("Hello world");  //print out the hello world

inside the void loop, so the hello world will appear repeatedly every 10 second.