Physical computing
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Physical Computing. Arduino , Raspberry Pi, Sensors, Controls…. Atmel AVR, ARM 1.8-12V 1-84MHz ( ATtiny , ATmega …) Arduino IDE + libraries I2C, SPI, PWM, UART, USB host $12-60. Arduino. Arduino Trinket. Arduino YÚN. bildr.org. Broadcom SoC 700-900 MHz, 512GB RAM 5V, ~1A

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Physical Computing

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Physical computing

Physical Computing

Arduino, Raspberry Pi, Sensors, Controls…


Arduino

  • Atmel AVR, ARM

  • 1.8-12V

  • 1-84MHz (ATtiny, ATmega…)

  • Arduino IDE + libraries

  • I2C, SPI, PWM, UART, USB host

  • $12-60

Arduino


Arduino trinket

Arduino Trinket


Arduino y n

Arduino YÚN


Physical computing

bildr.org


Raspberry pi

  • Broadcom SoC

  • 700-900 MHz, 512GB RAM

  • 5V, ~1A

  • Linux (Arch, Debian, Chromium), Python

  • Integrated A/V out, Ethernet, GPIO

  • $35

  • RasPi Camera Module

Raspberry Pi


Beagle bone black

  • ARM Cortex A8

  • 1GHz, 512GB RAM

  • 5V, ~1A

  • Linux (Angstrom, Android, Ubuntu), Python

  • Integrated A/V out, Ethernet, GPIO, ADC, DAC

  • $45

Beagle Bone Black


Physical computing

http://learn.adafruit.com


Physical computing

  • General Purpose Input Output

  • Digital read/write

  • 0-5V, 0-3.3V

  • on/off switching, bit-banging

GPIO?


Physical computing

  • Analog to Digital Converter

  • 0-5V, 0-3.3V

  • Voltage reading

  • 8-bit (256 levels or resolution), 10-bit, 16-bit, etc

  • 0…0V, 127…2.5V, 255…5v

ADC?


Physical computing

  • Digital to Analog Converter

  • Pulse Width Modulation (PWM)

  • 0-5V, 0-3.3V

  • Fast on/off switching, fading

DAC?


Physical computing

Barometric Pressure Sensor

BMP085 Breakout

$19.95

Barometric Pressure Sensor

BMP085$8.95

https://www.sparkfun.com/products/11282


Physical computing

Humidity Sensor - HIH-4030 Breakout


Wired communication

  • SPI

  • I2C

  • USI

  • USB Serial

  • TWI

  • CAN BUS

  • UART

  • RS-232

  • Ethernet

3.3V and 5V don’t mesh:

https://www.sparkfun.com/products/8745

Wired Communication


Wireless communication

  • WiFi

  • Bluetooth

  • Xbee / ZigBee

  • Wireless USB/RS-232

  • IrDA

  • 315 & 434 MHz radio

Tend to drain power

Most require Client/Server relationship

Wireless Communication


50 ma 5a

50 mA < 5A


50 ma 5a1

Microcontroller Motor, Valve, Relay, Light

50 mA < 5A


50 ma 5a2

Microcontroller Motor, Valve, Relay, Light

(Current Source) (Current Sink)

50 mA < 5A


50 ma 5a3

Microcontroller Motor, Valve, Relay, Light

(Current Source) (Current Sink)

50 mA < 5A


Higher loads

  • TIP Darlington Transistors

  • TIP120: 5A cont , 8A (trans)

    • NPN = Normally Open

  • TIP125: -5A cont, -8A(trans)

    • PNP = Normally Closed

Higher Loads


Inductive loads

Solenoids

Motors

Mechanical Relays (non-SSR)

Inductive Loads


Human interaction

2012 Senior Design Project

Human Interaction


Human interaction1

2012 Senior Design Project

Human Interaction


Physical computing

  • Human interface

  • Graphical Touchscreen

  • Customizable

  • Ultra low power

  • Wi-Fi integration

  • Built-in Tutorial


Physical computing

  • Human interface

  • Graphical Touchscreen

  • Customizable

  • Ultra low power

  • Wi-Fi integration

  • Built-in Tutorial


Physical computing

  • Human interface

  • Graphical Touchscreen

  • Customizable

  • Ultra low power

  • Wi-Fi integration

  • Built-in Tutorial


Physical computing

http://shop.oreilly.com/category/deals/arduino-owo.do?code=WKARD&cmp=tw-make-dotw-arduino

http://www.adafruit.com/blog/2013/01/23/adafruits-raspberry-pi-lesson-10-stepper-motors-raspberry_pi-raspberrypi/


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