Arduino ESP 8266 User manual

ESP8266 Quickstart Guide
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Quickstart Guide: Programming the Arduino ESP 8266
V1.0 - March 2018
Part 1: Setting up the Arduino
1. Connect to your wireless network
2. Install Arduino software from www.arduino.cc
3. Check if Windows automatically installs CP2112 USB-UART driver. Else, download driver from:
https://tinyurl.com/CP2112driver
NOTE for MAC users: Go to the Appendix at the back for help on how to install driver.
4. Connect Arduino board via USB cable to PC
5. Add Additional Board Manager URLs: FILE -> Preferences
http://arduino.esp8266.com/stable/package_esp8266com_index.json

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6. Include ESP8266 Board libraries: Tools -> Board -> Board Manager. Type ESP8266 and click on the
found module to install.
7. Select board NodeMCU 0.9. Tools -> Board -> NodeMCU 0.9 (scroll down to find it)
Click to install

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8. Select port (yours may be a different number, COM”X”). Tools -> Port COM
9. Set upload speed to 11500 or 9600. Tools -> Upload Speed -> 115200 or 9600
Ready for the first program 

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Part 2: Running the Blink Program
10. Open the File -> Examples -> Basics -> Blink
11. Investigate the program – which function blocks do what? Check that the LED is blinking properly.
Hint: Compile and Upload are in the top left corner of the IDE:
Part 3: Morse code
12. Alter the blink program to Morse SOS. Save the Blink program with name:
”Morse_SOS_yourname”
13. A few tips:
•All timings are defined as multiples of one dot length
•A dash is three times the length of a dot
•Each dot or dash has a short gap of silence after it (usually 1 dot length)
•Letters in a word have a slightly longer gap of silence between them (usually 3 dot lengths)
•Words have an even longer gap of silence between them (usually 7 dot lengths)

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Please note: (Solution example provided at the end of document)
•Arduino 8266 LED_BUILTIN:
•DigitalWrite HIGH -> LED off;
•DigitalWrite LOW -> LED on;
Part 4: Morse your name
14. Alter the blink program to Morse your name.Save the Blink program with name:
”Morse_NAME_yourname”
Want to know more about DTU Fotonik: For information on our B.Sc. programme
Go to www.fotonik.dtu.dk on Network Technology and IT, please visit:
Check out our education profile, courses
and research areas.
For questions, feel free to contact
B.Sc. Head of Studies Henrik Wessing at
[e-mail]
We hope to welcome you as our future students 
For High Schools, we offer:
-Workshops on Internet of Things programming with Arduino
-SRP projects (Build your own Earthquake Warning System)
Please contact: Sarah Ruepp ([e-mail]) or Martin Nordal Petersen ([e-mail])

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Appendix: Screenshots for MAC users
Go to https://tinyurl.com/CP2112driver and download the OSX driver. See screenshot below.
After downloading open/unzip the zip file and double click on the SiLabs USB Driver Disk.dmg file to install
the driver.

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After successfull installation you should see something like this:
After driver installation, in Arduino IDE, go to tho Tools -> Board manager and click on Boards Manager

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In Boards Manager search for esp8266 and install this board.
Now go to Arduino IDE, and open Tools -> Board menu. You should now find NodeMCU…
Select NodeMCU 0.9 (ESP…..

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Finally, to select the correct port go to Tools -> Port and select the one named something like
…SLAB_USBtoUART
Now you can open the Blink sketch:

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Solution example to SOS:
// S: ...
// O: ---
// S: ...
// Please note for Ardudino 8266: DigitalWrite HIGH -> LED off; DigitalWrite LOW -> LED on;
const byte ledPin = LED_BUILTIN; // specify which pin is connected to the LED (here built-in LED)
const unsigned int delayTime = 300; // specify delay time
void setup() {
pinMode(ledPin, OUTPUT); // set mode of ledPin to OUTPUT
}
void loop() {
flash(delayTime); flash(delayTime); flash(delayTime); // S (three short pulses) -> see flash function below
delay(3*delayTime); // pause between letters
flash(3*delayTime); flash(3*delayTime); flash(3*delayTime); // O (three long pulses)
delay(3*delayTime); // pause between letters
flash(delayTime); flash(delayTime); flash(delayTime); // S (three short pulses)
digitalWrite(ledPin,HIGH); // turn off LED
delay(7*delayTime); // pause between words
}
void flash(int flashDuration)
{
digitalWrite(ledPin,LOW); // turn on LED
delay(flashDuration); // pause – keep LED on
digitalWrite(ledPin,HIGH); // turn off LED
delay(flashDuration); // keep LED turned off
}