{ physical computing arduino, raspberry pi, sensors, controls…
TRANSCRIPT
{
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 Trinket
Arduino YÚN
{
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
{
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
General Purpose Input Output Digital read/write 0-5V, 0-3.3V on/off switching, bit-banging
GPIO?
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?
Digital to Analog Converter Pulse Width Modulation (PWM) 0-5V, 0-3.3V Fast on/off switching, fading
DAC?
https://www.sparkfun.com/products/11282
Barometric Pressure Sensor
BMP085 Breakout$19.95
Barometric Pressure Sensor BMP085
$8.95
{
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)
{
Higher Loads
TIP Darlington Transistors
TIP120: 5A cont , 8A (trans) NPN = Normally Open
TIP125: -5A cont, -8A(trans) PNP = Normally Closed
{
Inductive Loads
SolenoidsMotorsMechanical Relays (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/