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The IoT Academy IoT training Arduino Part 2 Arduino IDE
The document provides an overview of using the Arduino IDE to program an Arduino board. It discusses connecting an Arduino board to the computer, selecting the correct serial port and board settings in the IDE, and uploading a basic "Blink" program to flash an LED. The basics of Arduino code structure and common functions like pinMode, digitalWrite, and delay are also explained at a high level.
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The IoT Academy IoT training Arduino Part 2 Arduino IDE
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- 2. Compile Upload tocontroller Text Output (Serial Data) Code Editor Serial Monitor Arduino IDE Window
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- 4. Try It: Connectthe USB Cable
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- 6. Select Serial Portand Board
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- 9. Add an ExternalLED to pin 13 • File > Examples > Digital > Blink • LED’s have polarity – Negative indicated by flat side of the housing and a short leg www.instructables.com
- 10. A Little BitAbout Programming • Code is case sensitive • Statements are commands and must end with a semi- colon • Comments follow a // or begin with /* and end with */ • loop and setup
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- 13. Getting up andrunning The power mode must be selected before you plug the board into anything. When powering from the USB cable (5 volts) the jumper should be closest to the USB input, for DC supplythe jumper should be closest to the DC input.
- 15. Getting up andrunning Plug it into the USB port and install the USB drivers that come with the IDE. Open up the Arduino IDE and select the COM port, usually COM1 or COM2 on a Windows machine. Within the IDE, select the BAUD rate (communication speed for serial connections) Set BAUD rate to 9600 on Windows, (?) for Mac?
- 16. Basic Process Design thecircuit: What are electrical requirements of the sensors or actuators? Identify inputs (analog inputs) Identify digital outputs Write the code Build incrementally Get the simplest piece to work first Add complexity and test at each stage Save and Backup frequently Use variables, not constants Comment liberally
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- 18. Running Code WhileTethered
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- 21. Demonstration Start up theArduino software and open up the Blink sketch. For the most basic kind of program you’ll need a simple actuator, an LED with the long leg (+) pushed into pin 13 and the short leg (-) in the adjacent ground pin (GND). Pin 13 is special, in the sense that it has a built in resistor to correctly control the voltage going into a testing LED just like this. Example 1
- 22. Code Structure: Header Headerprovides information Example 1
- 23. Code Structure: setupfunction setup function is executed only once at the start Example 1
- 24. Code Structure: loopfunction loop function is repeated indefinitely Example 1
- 25. Code Digital I/O Functions: pinMode digitalWrite digitalRead pinMode(13,Output) prepare pin 13 for outputs of voltage Example 1
- 26. Code digitalWrite(13, HIGH) Sets pin13 to a voltage that means “on” Digital I/O Functions: pinMode digitalWrite digitalRead Example 1
- 27. Code Digital I/O Functions: pinMode digitalWrite digitalRead delay(1000); Tellsmicrocontroller to do nothing for 1000 ms = 1 s Example 1
- 28. Code digitalWrite(13, LOW) Sets pin13 to voltage that means “off” Digital I/O Functions: pinMode digitalWrite digitalRead Example 1
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- 30. Upload a program At this stage we just programmed the LED to blink on and off at a set time interval. Press the reset button on the board and then click ‘Upload to I/O board’ in the IDE. If all goes well lights should flicker on the board and the IDE will confirm success.