{

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

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

General Purpose Input Output digital 0-5V on/off switching, bit-banging no analog in or out (no ADCs, DACs,

PWMs)

GPIO?

http://learn.adafruit.com

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

Barometric Pressure Sensor

BMP085 Breakout$19.95

Barometric Pressure Sensor BMP085

$8.95

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

{

Wireless Communication

WiFi Bluetooth Xbee / ZigBee Wireless USB/RS-232 IrDA 315 & 434 MHz radio

Tend to drain powerMost require Client/Server relationship

50 mA < 5A

50 mA < 5A

Microcontroller Motor, Valve, Relay, Light

50 mA < 5A

Microcontroller Motor, Valve, Relay, Light

(Current Source) (Current Sink)

50 mA < 5A

Microcontroller Motor, Valve, Relay, Light

(Current Source) (Current Sink)

{

Inductive Loads

SolenoidsMotorsRelays (non-SSR)

{

Human Interaction

2012 Senior Design Project

{

Human Interaction

2012 Senior Design Project

• Human interface• Graphical Touchscreen• Customizable

• Ultra low power

• Wi-Fi integration• Built-in Tutorial

• Human interface• Graphical Touchscreen• Customizable

• Ultra low power

• Wi-Fi integration• Built-in Tutorial

• Human interface• Graphical Touchscreen• Customizable

• Ultra low power

• Wi-Fi integration• Built-in Tutorial

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/