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Lesson sample introduction to arduino
This document introduces Arduino by defining what it is, the parts of an Arduino board, and how to program it. An Arduino is a microcontroller board that can be used to develop interactive objects by taking various inputs (e.g. sensors) and controlling physical outputs (e.g. lights, motors). It explains the basic components of an Arduino board and how Arduino code is uploaded and run. A simple example is provided to blink an LED using Arduino code and by changing the delay times, the blinking speed can be adjusted. Keywords like Arduino board, sketch, and LED are also defined.
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Lesson sample introduction to arduino
- 1.Introduction toArduinoSeng KangSecondary SchoolApplied Learning Programme (ALP)
- 2.Lesson Objective• Whatis Arduino• Parts of Arduino board• Programming codes / ArduinoSoftware
- 3.What is anArduino?• Microcontroller board• Arduino can be used to develop interactive objects,taking INPUTS (eg. Switches or sensors) and controllingphysical OUTPUTS (eg. Lights or motors)• The boards can be assembled by hand or purchasedpreassembled
- 4.Power inUSB (tocomputer)DigitalIOPWM(3, 5, 6, 9, 10, 11)RESETPOWER5V / 3.3V / GNDAnalogINPUTSArduino
- 5.How Arduino works?HumaninputsEyeEarNoseTongueSkinOutputexamplesActivate armsActivate legsActivate mouthHuman brainOutputexamplesActivate LEDsActivate ServoActivate buzzerArduino inputsLight SensorsHeart Rate sensorsTemperature sensorsOther inputsArduino Board
- 6.How Arduino works?Arduinoboardblinks the LEDComputeruploads blinkingLED code toArduino boardTeacher showshow to connectthe ArduinocomponentsStudent connectsthe ArduinocomponentsStudent’s brainArduino Board
- 7.Digital Pins vsAnalog Pins• Digital Pin– There is two modes(eg: ON/OFF)• Analog Pins– Variable range(eg: dimming the light,different intensity)
- 8.
- 9.Light Emitting Diode(LED)√Polarity
- 10.
- 11.
- 12.AssembleNegative leg LED GNDPositive leg LED Pin 13
- 13.Codes• Step 1:Double click the iconto OPEN up the IDE• Step 2: TYPE the code into thespace below.• Step 3: Click on to VERIFY thecodes.• Step 4: Click on to UPLOADthe codes to the board.
- 14.What does thecodesmeans?
- 15.What do youobserveafter the codes areuploaded?
- 16.End with asemi-colon ( ; )const int led = 13;void setup (){pinMode (led, OUTPUT);}void loop (){digitalWrite (led, HIGH);delay(1000);digitalWrite (led, LOW);Delay (1000);}DeclarationSetup function(Preparation)Loop function(Execution)Open and close with curlybrackets { }Let’s Decode!!!
- 17.const int led= 13;void setup (){pinMode(led, OUTPUT);}void loop (){digitalWrite (led, HIGH);delay(1000);digitalWrite (led, LOW);delay(1000);}Declare LED as pin 13Define LED as OUTPUTHIGH LED OnLOW LED OffDuration between blinks(In millisecond)
- 18.void loop (){digitalWrite (led, HIGH) ;delay(1000);digitalWrite (led, LOW);delay(1000);}void loop ( ){digitalWrite (led, HIGH) ;delay(500);digitalWrite (led, LOW);delay(500);}What do you observe after thecodes are changed?
- 19.Keywords• Arduino Board:Physical programmable circuit board(also known as microcontroller)• Sketch: The name that Arduino uses for a program. It iswhere the program codes are written.• LED: Light Emitting Diode. Is an output.
Editor's Notes
- #3 Activity 1 – LED CircuitActivity 2 – 2 LED CircuitActivity 3 – Infinite Blink
- #9 IDE - Integrated Development Environment. Software to write and upload programming codes to Arduino board.
- #14 Step 1: Double click the icon to OPEN up the IDEStep 2: TYPE the code into the space below.Step 3: Click on to VERIFY the codes.Check for errors in the code.Step 4: Click on to UPLOAD the codes to the board.Check for errors in the code