Arduino Robotics Workshop Day 1
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Slides from my Arduino robotic workshop http://hardwarefun.com/arduino-workshop
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Arduino Robotics Workshop Day 1
- 1. Arduino Robotics Workshop Day 1 Sudar Muthu (@sudarmuthu) http://hardwarefun.com/arduino-workshop http://github.com/sudar
- 2. Who am I? Research Engineer by profession Build’s robots as a hobby Playing with Arduino for more than 3 years Blog about Arduino at http://hardwarefun.com Moderator for Arduino India forum http://hardwarefun.com 2
- 3. Special Thanks Anil and Sysplay http://hardwarefun.com 3
- 4. Objective Introduce Arduino Learn about robotics Learn about sensors Build a small bot Make it autonomous Fully hands on Details at http://hardwarefun.com/arduino-workshop http://hardwarefun.com 4
- 6. Anatomy of a Robot Sensors Motors Processor
- 10. Getting to know your Robotics Kit http://hardwarefun.com 10
- 11. Can you identify the different components in the kit? http://hardwarefun.com 11
- 13. How to use a breadboard The first two and the last two rows are connected In all the other rows, columns are connected Connect the first and last row to power Connect the second and second last row to ground http://hardwarefun.com 13
- 15. Different Arduino types Arduino Uno (The one used for this workshop) Arduino Mega Arduino Due Lillypad Arduino BT Arduino Ethernet .. and clones http://hardwarefun.com 15
- 16. Getting to know your Arduino http://hardwarefun.com 16
- 17. Identify these components in Arduino Microcontroller Power jacket USB jacket Digital pins Analog pins Reset button http://hardwarefun.com 17
- 18. Identify these components in Arduino Voltage Regulator Power Pins (how many are there?) Ground Pins (how many are there?) Vin Pin Rx and Tx Pins ICSP Headers http://hardwarefun.com 18
- 19. Identify these components in Arduino Power Led Rx and Tx Led’s Test Led Crystal Anything else? http://hardwarefun.com 19
- 21. Different ways to power up Arduino Using USB cable Using DC power jacket Giving voltage directly into Vin pin Giving regulated voltage directly into 5V pin http://hardwarefun.com 21
- 23. Testing the setup with a “Hello World” program http://hardwarefun.com 23
- 25. Making a LED blink Insert a LED in pin 13 Open File->Examples->Basics->Blink Select Tools->Boards->Arduino Uno Select File->Upload (or press ctrl+u) You should get the message “Done upload” Your Led should blink Congrats you can program Arduino now http://hardwarefun.com 25
- 26. Anatomy of an Arduino sketch http://hardwarefun.com 26
- 27. Printing values through Serial Uno has one UART hardware port, using which we can exchange information with computer Very useful for debugging Works at a specified baud rate Use Serial Monitor to read values SoftwareSerial is also available http://hardwarefun.com 27
- 28. Digital Input and output http://hardwarefun.com 28
- 30. Digital Output The LED blink that we did at “setting up Arduino” is Digital output http://hardwarefun.com 30
- 32. Reading Analog values from sensors Connect the LDR on pin A0 and Gnd LDR’s resistance varies based on the amount of light present Read the current value using analogRead() Print the value in Serial Monitor http://hardwarefun.com 32
- 33. Control an LED based on light void setup() { pinMode(13, OUTPUT); } void loop() { int val = analogRead(A0); if (val > 50) { digitalWrite(13, HIGH); } else { digitalWrite(13, LOW); } }
- 35. Analog Output What is PWM? Analog like behavior using digital output Works by switching the LED on and off regularly Changing the brightness of a Led http://hardwarefun.com 35
- 37. Main Concepts What is voltage? What is current ratting? Rechargeable Don’t ever short circuit it http://hardwarefun.com 37
- 38. Different types of batteries http://hardwarefun.com 38
- 39. Can you identify the battery which is part of the kit? http://hardwarefun.com 39
- 40. Let’s get some Food http://hardwarefun.com 40
- 42. Dc Motor vs stepper motor http://hardwarefun.com 42
- 43. Identify the motor in the kit http://hardwarefun.com 43
- 45. Understanding the pins of H- Bridge http://hardwarefun.com 45
- 46. Connecting motors to H-Bridge http://hardwarefun.com 46
- 47. Let’s assemble the bot
- 48. Teaching robot to crawl Move Forward Both motors rotate in the forward direction Move Backward Both motors rotate in the reverse direction Turn left Left motor stops. Only right motor rotates forward Turn Right Left motor moves forward. Right motor stops
- 49. Putting everything together You have your first fully autonomous robot ready. Now take her for a walk
- 50. What we will see tomorrow Varying the speed of the motor How IR works Making use of IR to find obstacles Make the bot avoid strangers Making it autonomous Future ideas http://hardwarefun.com 50
- 51. Links Arduino – http://arduino.cc Asimi – A simple bot using Arduino http://hardwarefun.com/project/asimi Getting started with hardware programming http://hardwarefun.com/tutorials/getting-started-with- hardware-programming Getting started with Arduino http://hardwarefun.com/tutorials/getting-started-with- arduino-and-avr Workshop Details http://hardwarefun.com/arduino- workshop
- 52. Questions Thank You Sudar Muthu (@sudarmuthu) http://hardwarefun.com/arduino-workshop https://github.com/sudar/arduino-robotics-workshop