Successfully reported this slideshow.
We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. You can change your ad preferences anytime.

Cassiopeia Ltd - standard Arduino workshop

2,972 views

Published on

this is the standard presentation we use for our 'hands-on introduction to Arduino' workshops in Hong Kong
more info on www.cassiopeia.hk

Published in: Technology
  • DOWNLOAD FULL BOOKS, INTO AVAILABLE FORMAT ......................................................................................................................... ......................................................................................................................... 1.DOWNLOAD FULL. PDF EBOOK here { https://tinyurl.com/y3nhqquc } ......................................................................................................................... 1.DOWNLOAD FULL. EPUB Ebook here { https://tinyurl.com/y3nhqquc } ......................................................................................................................... 1.DOWNLOAD FULL. doc Ebook here { https://tinyurl.com/y3nhqquc } ......................................................................................................................... 1.DOWNLOAD FULL. PDF EBOOK here { https://tinyurl.com/y3nhqquc } ......................................................................................................................... 1.DOWNLOAD FULL. EPUB Ebook here { https://tinyurl.com/y3nhqquc } ......................................................................................................................... 1.DOWNLOAD FULL. doc Ebook here { https://tinyurl.com/y3nhqquc } ......................................................................................................................... ......................................................................................................................... ......................................................................................................................... .............. Browse by Genre Available eBooks ......................................................................................................................... Art, Biography, Business, Chick Lit, Children's, Christian, Classics, Comics, Contemporary, Cookbooks, Crime, Ebooks, Fantasy, Fiction, Graphic Novels, Historical Fiction, History, Horror, Humor And Comedy, Manga, Memoir, Music, Mystery, Non Fiction, Paranormal, Philosophy, Poetry, Psychology, Religion, Romance, Science, Science Fiction, Self Help, Suspense, Spirituality, Sports, Thriller, Travel, Young Adult,
       Reply 
    Are you sure you want to  Yes  No
    Your message goes here
  • DOWNLOAD FULL BOOKS, INTO AVAILABLE FORMAT ......................................................................................................................... ......................................................................................................................... 1.DOWNLOAD FULL. PDF EBOOK here { https://tinyurl.com/y3nhqquc } ......................................................................................................................... 1.DOWNLOAD FULL. EPUB Ebook here { https://tinyurl.com/y3nhqquc } ......................................................................................................................... 1.DOWNLOAD FULL. doc Ebook here { https://tinyurl.com/y3nhqquc } ......................................................................................................................... 1.DOWNLOAD FULL. PDF EBOOK here { https://tinyurl.com/y3nhqquc } ......................................................................................................................... 1.DOWNLOAD FULL. EPUB Ebook here { https://tinyurl.com/y3nhqquc } ......................................................................................................................... 1.DOWNLOAD FULL. doc Ebook here { https://tinyurl.com/y3nhqquc } ......................................................................................................................... ......................................................................................................................... ......................................................................................................................... .............. Browse by Genre Available eBooks ......................................................................................................................... Art, Biography, Business, Chick Lit, Children's, Christian, Classics, Comics, Contemporary, Cookbooks, Crime, Ebooks, Fantasy, Fiction, Graphic Novels, Historical Fiction, History, Horror, Humor And Comedy, Manga, Memoir, Music, Mystery, Non Fiction, Paranormal, Philosophy, Poetry, Psychology, Religion, Romance, Science, Science Fiction, Self Help, Suspense, Spirituality, Sports, Thriller, Travel, Young Adult,
       Reply 
    Are you sure you want to  Yes  No
    Your message goes here

Cassiopeia Ltd - standard Arduino workshop

  1. 1. standard Arduino workshop 2017 Hands-on Arduino introduction Tom Tobback www.cassiopeia.hk 2017
  2. 2. standard Arduino workshop 2017 some of Tom’s projects cassiopeia.hk/category/projects/
  3. 3. standard Arduino workshop 2017 Before we start… check the connection between your Arduino board and your laptop: ● plugin your Arduino board USB cable into your laptop ● open Arduino IDE software (www.arduino.cc) ● open the Blink sketch from File>Examples>Basic ● pick the correct port from Tools>Serial Port ● pick the correct board type from Tools>Board “Uno” ● hit ‘upload’ to test the connection ● look for ‘Done uploading’ and check if the onboard LED is blinking
  4. 4. standard Arduino workshop 2017 Arduino: what is it? Arduino is an open-source electronics prototyping platform based on flexible, easy-to-use hardware and software It is intended for artists, designers, hobbyists and anyone interested in creating interactive objects or environments • sensors • sound • light • wifi • ...
  5. 5. standard Arduino workshop 2017 Our program for today terminology 4 software 2 basic electronics 4 projects 20+ metronome theremin
  6. 6. standard Arduino workshop 2017 Arduino terminology software: • IDE • web editor • sketch • uploading hardware: • board • microcontroller (mcu) • pin headers • input • output • digital/analog • breadboard • jumper wires • components
  7. 7. standard Arduino workshop 2017 Arduino vs Raspberry Pi ➔ looks similar ➔ similar price ➔ micro-controller vs mini-computer ➔ Arduino: IO ➔ Pi: OS Other popular platforms: ESP8266, Particle Photon, micro:bit
  8. 8. standard Arduino workshop 2017 Arduino boards ➔ many official boards ➔ different sizes ➔ different connections ➔ use same code ➔ mostly compatible ➔ extra functions via shields
  9. 9. standard Arduino workshop 2017 Arduino UNO
  10. 10. standard Arduino workshop 2017 Arduino-style boards ➔ many copies ➔ many improvements ➔ extra functions included (Wifi, GPS, motor, Ethernet,...) ➔ use same code ➔ mostly compatible ➔ cheaper!
  11. 11. standard Arduino workshop 2017 Arduino software: IDE ➔ Integrated Development Environment ➔ Write sketch -> upload to board ➔ Useful examples ➔ ‘Libraries’ to make our life easier Always make sure to pick the correct BOARD ➔ Connect using USB cable, pick correct PORT ➔ Upload sketch ➔ Check output of Serial Monitor ➔ Save your sketches..
  12. 12. standard Arduino workshop 2017 Arduino software: Web Editor Same functionality with: ➔ Browser based editor (needs login) ➔ Accessible from any computer ➔ Storage in the cloud ➔ Need to sign up for username ➔ Need to install the Arduino Create plugin for upload
  13. 13. standard Arduino workshop 2017 Basic electronics ➔ DC direct current vs alternating current AC ➔ voltage: volts 5V (usb), 3V3, 9V ➔ current: milli ampere 40 mA = 0.04 A ➔ power: watts 1-2 W (USB limit) ➔ resistors: reduce voltage ➔ diodes: one-way + light ➔ capacitors: small battery ➔ schematics
  14. 14. standard Arduino workshop 2017 Basic electronics DIGITAL: on/off 1/0 true/false high/low 0V/5V ANALOG: variable 0->5V Ohm’s law: U = I * R Kirchoff’s laws:
  15. 15. standard Arduino workshop 2017 From prototype to product
  16. 16. standard Arduino workshop 2017 From prototype to product
  17. 17. standard Arduino workshop 2017 Breadboard = connections
  18. 18. standard Arduino workshop 2017 Breadboard power rails 5V to red line GND to blue line Optional: connect to other side
  19. 19. standard Arduino workshop 2017 Breadboard
  20. 20. standard Arduino workshop 2017 Arduino projects for today ➔ Blink: the ‘hello world’ of Arduino pinMode digitalWrite delay ➔ Read push button digitalRead ➔ Read potentiometer analogRead ➔ Output to Serial Monitor Serial.print ➔ Buzzer music tone ➔ Potentiometer + blink + buzzer = metronome ➔ Read photoresistor/LDR ➔ Fading (PWM) analogWrite ➔ Input to Serial Monitor Serial.read
  21. 21. standard Arduino workshop 2017 Arduino: blink Blink: the ‘hello world’ of Arduino 220 ohm
  22. 22. standard Arduino workshop 2017 resistor colour code 220 ohm = 220 Ω red red black black (brown) 10k ohm = 10,000 Ω brown black black red (brown)
  23. 23. standard Arduino workshop 2017 Arduino: ‘blink’ sketch /* Blink Turns on an LED on for one second, then off for one second, repeatedly. Most Arduinos have an on-board LED you can control. On the Uno and Leonardo, it is attached to digital pin 13. If you're unsure what pin the on-board LED is connected to on your Arduino model, check the documentation at http://www.arduino.cc This example code is in the public domain. modified 8 May 2014 by Scott Fitzgerald */ // the setup function runs once when you press reset or power the board void setup() { // initialize digital pin 13 as an output. pinMode(13, OUTPUT); } // the loop function runs over and over again forever void loop() { digitalWrite(13, HIGH); // turn the LED on (HIGH is the voltage level) delay(1000); // wait for a second digitalWrite(13, LOW); // turn the LED off by making the voltage LOW delay(1000); // wait for a second } initialisation setup { } loop { } bonus: attach a second LED to pin12 doing exactly opposite of LED on pin13
  24. 24. standard Arduino workshop 2017 Arduino: RGB LED blink Red Green Blue = primary colours (additive) V = common negative R = red positive B = blue positive G = green positive (including resistors) use digitalWrite to mix colours e.g. on pin 10, 11, 12
  25. 25. standard Arduino workshop 2017 Arduino: RGB LED blink
  26. 26. standard Arduino workshop 2017 [optional] Arduino: button boolean button_pressed = false; --- pinMode(2, INPUT); --- button_pressed = digitalRead(2); if (button_pressed == true) { digitalWrite(13, HIGH); } else { digitalWrite(13, LOW); } use pinMode(2, INPUT_PULLUP); or: pull-down resistor (e.g. 10kΩ)
  27. 27. standard Arduino workshop 2017 Arduino: potentiometer
  28. 28. standard Arduino workshop 2017 Arduino: potentiometer int pot_value; [VARIABLE] [SETUP] [LOOP] pot_value = analogRead(A0); [change your delay to:] delay(pot_value); [analogRead returns 0->1023] 5k ohm
  29. 29. standard Arduino workshop 2017 Arduino: Serial Monitor [SETUP] Serial.begin(9600); [LOOP] [try one by one:] Serial.print(“hello”); [or] Serial.println(“hello”); [or] Serial.print(“pot value: “); Serial.println(pot_value); bonus: print description of your program on startup and format output with t
  30. 30. standard Arduino workshop 2017 Arduino: Serial Plotter [LOOP] Serial.println(pot_value);
  31. 31. standard Arduino workshop 2017 Arduino: metronome Blink with variable speed, and bpm in serial monitor How? read pot_value (analogRead) print pot_value (Serial.print) calculate beats per minute (=) print BPM (Serial.print) LED ON for 100ms (digitalWrite) LED OFF for variable time: pot_value 100ms variable pot_value ON OFF
  32. 32. standard Arduino workshop 2017 Arduino: metronome total ‘beat’ length = 100ms ON + variable OFF beat_length = 100 + pot_value beats per minute = (60 * 1000) / beat_length BPM will vary from 53 to 600 100ms variable pot_value bonus: attach a second LED to pin12 doing exactly opposite of LED on pin13 ON OFF total beat length
  33. 33. standard Arduino workshop 2017 Arduino: metronome ‘int’ type does not work with large numbers (larger than around 32000, 16 bits) type to use = ‘long’ long bpm; [SETUP] [LOOP] bpm = (60 * 1000L) / (100 + pot_value); bonus: format your output with t
  34. 34. standard Arduino workshop 2017 Arduino: sound Piezo buzzer = speaker SYNTAX: tone(pin, freq); tone(pin, freq, duration); noTone(pin); [SETUP] [LOOP] tone(3, 261); [put in correct place!] noTone(3); [put in correct place!]
  35. 35. standard Arduino workshop 2017 Arduino: metronome + sound ● LED on and beep (100ms) + LED off and no beep ● variable speed with potentiometer ● serial monitor BPM frequency examples (Hz): C 261 D 293 E 329 G 392 bonus: try different frequencies
  36. 36. standard Arduino workshop 2017 Arduino: light dependent resistor LDR or photoresistor = variable resistor, similar to potentiometer -> analogRead voltage divider: sum=5V and analog input sees 0->5V 1K ohm
  37. 37. standard Arduino workshop 2017 Arduino: light dependent resistor int ldr_value; [SETUP] [LOOP] ldr_value = analogRead(A1); Serial.println(ldr_value); check on the Serial Monitor for min, max values of the LDR how to go from e.g. 50-500 values to 200-5000Hz frequencies? use ‘map’ function
  38. 38. standard Arduino workshop 2017 Arduino: light dependent resistor int freq; [SETUP] [LOOP] freq = map(ldr_value, 50, 500, 200, 5000); tone(3, freq); [just update this line] SYNTAX: map(value, fromLow, fromHigh, toLow, toHigh)
  39. 39. standard Arduino workshop 2017 Basic theremin
  40. 40. standard Arduino workshop 2017 Arduino: basic theremin sketch int pot_value; int ldr_value; int freq; long bpm; void setup() { pinMode(13, OUTPUT); Serial.begin(9600); } void loop() { pot_value = analogRead(A0); bpm = (60 * 1000L) / (100 + pot_value); ldr_value = analogRead(A1); freq = map(ldr_value, 50, 500, 200, 5000); Serial.print(“BPM: “); Serial.println(bpm); digitalWrite(13, HIGH); tone(3, freq); delay(100); digitalWrite(13, LOW); noTone(3); delay(pot_value); } 1 2 3
  41. 41. standard Arduino workshop 2017 Advanced theremin 1. Use a pentatonic scale with a lookup table = table of frequencies on a pentatonic scale, accessible by index 2. Add a 2 step ‘sequencer’ 1 loop = constant base note + variable note on second beat 100ms variable pot_value 100ms variable pot_value base note silence variable pentatonic note silence
  42. 42. standard Arduino workshop 2017 Pentatonic theremin Pentatonic scale with a lookup table int pentatonicTable[50] = { 0, 19, 22, 26, 29, 32, 38, 43, 51, 58, 65, 77, 86, 103, 115, 129, 154, 173, 206, 231, 259, 308, 346, 411, 461, 518, 616, 691, 822, 923, 1036, 1232, 1383, 1644, 1845, 2071, 2463, 2765, 3288, 3691, 4143, 4927, 5530, 6577, 7382, 8286, 9854, 11060, 13153, 14764 }; OLD: freq = map(ldr_value, 50, 500, 200, 5000); NEW: freq = pentatonicTable[map(ldr_value, 50, 500, 20, 45)];
  43. 43. standard Arduino workshop 2017 2 step sequencer theremin 1 loop = constant base note + variable note on second beat tone(3, 206); noTone(3); tone(3, freq); noTone(3); delay(100); delay(pot_value); delay(100); delay(pot_value); Now you can add steps, change length of steps etc... 100ms variable pot_value 100ms variable pot_value base note silence variable pentatonic note silence
  44. 44. standard Arduino workshop 2017 Arduino: AnalogWrite (PWM) Analog input = 0 to 5 V Arduino does not output a real analog signal (0-5V) analogWrite(pin, value); PWM = Pulse Width Modulation only available on pins 3,5,6,9,10,11 can use this to fade LED values from 0 to 255 (8 bits)
  45. 45. standard Arduino workshop 2017 Arduino: AnalogWrite (PWM) ‘for’ structure = loop for X times Open sketch: Examples > 03.Analog > Fading [change your breadboard LED to pin 9] // fade in from min to max in increments of 5 points: for(int fadeValue = 0 ; fadeValue <= 255; fadeValue +=5) { // sets the value (range from 0 to 255): analogWrite(ledPin, fadeValue); // wait for 30 milliseconds to see the dimming effect delay(30); }
  46. 46. standard Arduino workshop 2017 Arduino: input via Serial Monitor top box of Serial Monitor = input send data from computer to Arduino - ASCII format (bytes)
  47. 47. standard Arduino workshop 2017 Arduino: input via Serial Monitor Let’s read a number 0-9 for intensity of LED [remove all commands from loop] int brightness; [SETUP] Serial.begin(9600); [LOOP] if (Serial.available()) { brightness = Serial.read(); Serial.print("Arduino received: "); Serial.println(brightness); } [switch to ‘No line ending’ at bottom of Serial Monitor?]
  48. 48. standard Arduino workshop 2017 Arduino: input via Serial Monitor for analogWrite we need to map the brightness from 48-57 (ASCII for 0 to 9) to 0-255 for analogWrite (0% to 100%) [add this line in the loop] analogWrite(ledPin, map(brightness, 48, 57, 0, 255));
  49. 49. standard Arduino workshop 2017 Arduino: suppliers ONLINE ➔ Official Arduino shop: http://arduino.cc/ great documentation, projects, forum ➔ Seeedstudio: http://www.seeedstudio.com/depot/ ➔ Telesky: https://telesky.world.tmall.com/ ➔ Adafruit: http://www.adafruit.com/ great documentation IN HONG KONG - Apliu St ➔ WECL http://www.weclonline.com/wecl_eng/index.html ➔ Tell How http://tellhow-tech.com/
  50. 50. standard Arduino workshop 2017 Arduino: kits ➔ Seeedstudio Sidekick Arduino kit ➔ Arduino Starter Kit
  51. 51. standard Arduino workshop 2017 Dimsum Labs the hackerspace of HK www.dimsumlabs.com/ community of technology enthusiasts space for creativity in Sheung Wan Tuesday evening HackJam www.facebook.com/groups/hackjamhk/
  52. 52. standard Arduino workshop 2017 Thank you www.cassiopeia.hk Happy tinkering!

×