Presented during ITDevCon-2016 event in Rome-Italy

1. Arduino+Delphi Mobile
Beyond Basics
Victory Fernandes
Embarcadero MVP-Brazil

2. @victoryjorge

3. Victory Fernandes
• I love Delphi since 1998! 
• Embarcadero MVP-Brazil
• CTO at TKSSoftware.com
• Electrical Engineer; Msc. Medicine Neuro-Science
• INDEVA Manipulators and AGVs representative

4. How big is Brazil?

5. How big is Brazil?
ExtremeDelphi 2016 events
so far we travelled +10.0000km

6. Embarcadero Conference Brazil 2016
• Oct,26 – São Paulo – Brazil
• 7 simultaneous rooms
• 600+ attendees are expected
#ECON2015
www.embarcaderoconferece.com.br

7. Factory floor weighing scales

8. Factory floor weighing scales

9. Truck weighing scales

10. Production tracking

11. Production tracking

12. Production tracking as we found!

13. Ethernet IO device

14. Delphi Intraweb app on TV

15. Delphi Intraweb app on Mobile + SMS

16. Worked with microcontrollers before?

18. First prototype used Arduino…

19. Why we ended up using ARM?

20. NYQUIST theorem

21. • Learn about the signal to be sampled
• Choose the right sensor
• Dimentions, Weight, Voltage, other general limitations
• Sample rate vs. File size vs. Recording speed
• Prototype circuit dimentions, weight, power
consumption, other general limitations etc…
• Battery usage
• Prototype Housing
"Microcontrollers for Dummies"

23. • Prototyping platforms
• Open source Software and Hardware
• Application? Size, power consumption…
• 8bits, 32bits…
• 16MHz, 95Mhz…
• 32KB-512KB Flash; 2KB-32KB RAM, SRAM, EEPROM…
• 8051, PIC, AtMega, ARM…
• Intel, Microchip, Atmel, Freescale, NXP…
"Microcontrollers for Dummies"

24. Digital I/Os

25. •Numbered pins 0 to 13
•6 of them with suport for PWM
•0 (zero) = LOW = 0 Volts
•1 (one) = HIGH = 5 Volts
•Max. current output 20mA
Digital I/Os

26. PWM

27. • Equivalent to analog output; Allows to control signal power
output (Watts) and can be used to dimmers leds, control
motor speed etc...
PWM – Pulse Width Modulation

28. Analog Input

29. • Numbered pins A0 to A5
• Voltage input from 0 to 5V is mapped to a Byte
•Binary values from 0000-0000 to 1111-1111
•Decimal values from 0 to 255
• Allows to read analog sensors for temperature, light,
distance, etc...
Analog Input

30. There is more…
SPI-Serial Peripherical Interface
I2C-inter-Integrated Circuit

31. • RISC
•Reduced Instruction Set Computer
•131 Assembler instructions; 1 instruction per cycle
• At 16MHz its almost 16x106 lines of code per second!
ATMega328P

32. •EEPROM memory, once you record there is no
need for a power supply in order to keep its
contents.
•This is where your program code is stored after
you download it to to the microcontroller...
Flash memory - 32KB

33. •Static Random Access Memory, will keep its
contents as long as the power is available; Not
need for refresh like DRAM.
•This is where the microcontroller executes our
program... No power? All status and variable
values are lost!
SRAM Memory - 2KB

34. •Electrically-Erasable Programmable Read-
Only Memory
•This is where we record data that we do not
want to lose after shutdown!
EEPROM Memory - 1KB

35. Not that much?

37. "Hello world”? Why the resistor?

38. Remember the 20mA max current?
•Ohm’s law
•V[Volt]=R[ohm].i[Ampere]
•R = 5/0,020 = 250 ohm
• LED internal resistance is very low! In this case we considered it tends to zero

39. Voila!

40. The fun goes on…

41. Can we trigger a relay like this?

42. Voltage/Current output coupling
Transistors
triggering
higher
currents/v
oltage
ULN2001-2002-2003-2004
6-25V; up to 500mA

43. Voila!
Transistors are here!

44. Now lets say I want to read a sensor…

45. Now lets say I want to read a sensor…

46. Now lets say I want to read a sensor…

47. Can I do this?

48. PULL DOWN resistor

49. PULL DOWN resistor
 when OPEN
 Vout = GND = 0V
 LOW is read
 when CLOSED
 Vout = Vin = 5V
 HIGH is read
Usually high values around 10kOhm

50. PULL UP resistor

51. PULL UP resistor
 when OPEN
 Vout = Vin = 5V
 HIGH is read
 when CLOSED
 Vout = GND = 0V
 LOW is read
Usually low values around 300ohm

52. Do we really need the resistors?

53. What if I want to use industrial sensors?

54. Optocoupler, Opto-Isolator or Photo-Coupler

56. Delphi Android/iOS app
ON
OFF
UDP Server
192.168.1.177:8888
’H’ ’H’ ’H’=On
’L’ ’L’ ’L’=Off

57. Robocore Padawan
www.robocore.net/loja/produtos/arduino-shield-padawan.html
Temperature
sensor
Joystick
Potentiometer
RGB LED
General connector supports
Digital input
Digital outout/PWM
7 segment
diplay
Light
sensor

58. DFRobot accessory board
www.dfrobot.com/index.php?route=product/product&path=35&product_id=1045
RGB LED
Joystick
Potentiometer
RelayBuzzer
LCD Display
Pressure/
Humidity

61. Supported string messages…

63. Coding the complete Arduino C code…

64. VCL demo

65. VCL demo

67. victoryfernandes@yahoo.com.br
www.youtube.com/user/victoryfernandes
@victoryjorge
Thank you! Grazie! Obrigado!