actuators - university of california, berkeleycs194-126/fa16/lectures/actuators.pdf · multiple...
TRANSCRIPT
![Page 1: Actuators - University of California, Berkeleycs194-126/fa16/lectures/actuators.pdf · Multiple Seven Segments with MAX7221 Shift Registers 13 uses SPI to address does multiplexing](https://reader033.vdocuments.us/reader033/viewer/2022041914/5e68eac2a9de8053c3382b47/html5/thumbnails/1.jpg)
Actuators
Jonathan Bachrach
EECS UC Berkeley
October 10, 2016
![Page 4: Actuators - University of California, Berkeleycs194-126/fa16/lectures/actuators.pdf · Multiple Seven Segments with MAX7221 Shift Registers 13 uses SPI to address does multiplexing](https://reader033.vdocuments.us/reader033/viewer/2022041914/5e68eac2a9de8053c3382b47/html5/thumbnails/4.jpg)
Actuator Output Categories 3
Voltage any Analog valueEvent touch, IR, magnetic, hall effectLight LED, Seven Segment Display, LCD Display
Sound speakerMotion brushed motor, servo, stepper, brushless
UI meter
![Page 5: Actuators - University of California, Berkeleycs194-126/fa16/lectures/actuators.pdf · Multiple Seven Segments with MAX7221 Shift Registers 13 uses SPI to address does multiplexing](https://reader033.vdocuments.us/reader033/viewer/2022041914/5e68eac2a9de8053c3382b47/html5/thumbnails/5.jpg)
Actuator Hookup Techniques 4
DigitalOut simpleAnalogOut need to map values
PWM need to map valuesUART printf
I2C need addressSPI number of bits
![Page 6: Actuators - University of California, Berkeleycs194-126/fa16/lectures/actuators.pdf · Multiple Seven Segments with MAX7221 Shift Registers 13 uses SPI to address does multiplexing](https://reader033.vdocuments.us/reader033/viewer/2022041914/5e68eac2a9de8053c3382b47/html5/thumbnails/6.jpg)
Visual Output 5
LEDSeven Segment DisplayLCD
![Page 7: Actuators - University of California, Berkeleycs194-126/fa16/lectures/actuators.pdf · Multiple Seven Segments with MAX7221 Shift Registers 13 uses SPI to address does multiplexing](https://reader033.vdocuments.us/reader033/viewer/2022041914/5e68eac2a9de8053c3382b47/html5/thumbnails/7.jpg)
Simple LED 6
pull up resistorcalculate resistor based on desired current and voltage drop
R
5V
1.7V
![Page 8: Actuators - University of California, Berkeleycs194-126/fa16/lectures/actuators.pdf · Multiple Seven Segments with MAX7221 Shift Registers 13 uses SPI to address does multiplexing](https://reader033.vdocuments.us/reader033/viewer/2022041914/5e68eac2a9de8053c3382b47/html5/thumbnails/8.jpg)
High Power LED 7
microcontroller can only drive 40mAseparate power for LEDdrive transistor into saturation
Vin
+5v
4.7ohms
270ohms
![Page 9: Actuators - University of California, Berkeleycs194-126/fa16/lectures/actuators.pdf · Multiple Seven Segments with MAX7221 Shift Registers 13 uses SPI to address does multiplexing](https://reader033.vdocuments.us/reader033/viewer/2022041914/5e68eac2a9de8053c3382b47/html5/thumbnails/9.jpg)
More PWM Channels 8
multiplexorcan daisy chain them
![Page 10: Actuators - University of California, Berkeleycs194-126/fa16/lectures/actuators.pdf · Multiple Seven Segments with MAX7221 Shift Registers 13 uses SPI to address does multiplexing](https://reader033.vdocuments.us/reader033/viewer/2022041914/5e68eac2a9de8053c3382b47/html5/thumbnails/10.jpg)
LED Matrix 9
multiplex over all pinsrow/colsqrt number of pinsneed only use 40mA / |cols| currentforward voltage is say 1.8v -> 680 ohms
![Page 11: Actuators - University of California, Berkeleycs194-126/fa16/lectures/actuators.pdf · Multiple Seven Segments with MAX7221 Shift Registers 13 uses SPI to address does multiplexing](https://reader033.vdocuments.us/reader033/viewer/2022041914/5e68eac2a9de8053c3382b47/html5/thumbnails/11.jpg)
Charlie Plexing 10
technique for driving more leds with fewer pinsnamed after charlie allen (of microchip technology inc)trick that led’s work only one directioncan turn off LEDs setting pin to inputdrive only one led at a timen pins can drive n2 − n leds
a b c L0 L1 L2 L3 L4 L50 0 0 0 0 0 0 0 00 1 Z 1 0 0 0 0 01 0 Z 0 1 0 0 0 0Z 0 1 0 0 1 0 0 0Z 0 0 0 0 0 1 0 00 Z 1 0 0 0 0 1 01 Z 0 0 0 0 0 0 1
a
b
c
L0
L1
L2
L3 L4
L5
![Page 12: Actuators - University of California, Berkeleycs194-126/fa16/lectures/actuators.pdf · Multiple Seven Segments with MAX7221 Shift Registers 13 uses SPI to address does multiplexing](https://reader033.vdocuments.us/reader033/viewer/2022041914/5e68eac2a9de8053c3382b47/html5/thumbnails/12.jpg)
Seven Segment LED Display 11
one bit per seven segmentspull up resistors
![Page 13: Actuators - University of California, Berkeleycs194-126/fa16/lectures/actuators.pdf · Multiple Seven Segments with MAX7221 Shift Registers 13 uses SPI to address does multiplexing](https://reader033.vdocuments.us/reader033/viewer/2022041914/5e68eac2a9de8053c3382b47/html5/thumbnails/13.jpg)
Multiple Seven Segment LED Display 12
multiplex displaysenable signal for each digitrapidly turn on each segmentuse 2N2222 transistor to activate each digit
![Page 14: Actuators - University of California, Berkeleycs194-126/fa16/lectures/actuators.pdf · Multiple Seven Segments with MAX7221 Shift Registers 13 uses SPI to address does multiplexing](https://reader033.vdocuments.us/reader033/viewer/2022041914/5e68eac2a9de8053c3382b47/html5/thumbnails/14.jpg)
Multiple Seven Segments with MAX7221 ShiftRegisters 13
uses SPI to addressdoes multiplexing for youaddress digit and
sa sb sc sd se sf sg d0 d1 d2 d3 d4 d5 d6 d7
sck miso mosi ss gnd gnd 5V ISet
![Page 15: Actuators - University of California, Berkeleycs194-126/fa16/lectures/actuators.pdf · Multiple Seven Segments with MAX7221 Shift Registers 13 uses SPI to address does multiplexing](https://reader033.vdocuments.us/reader033/viewer/2022041914/5e68eac2a9de8053c3382b47/html5/thumbnails/15.jpg)
Array of LEDs with MAX72xx Shift Registers 14
grid of LEDsinstead of digits it’s rowsinstead of segments it’s LEDs
sa sb sc sd se sf sg d0 d1 d2 d3 d4 d5 d6 d7
sck miso mosi ss gnd gnd 5V ISet
![Page 16: Actuators - University of California, Berkeleycs194-126/fa16/lectures/actuators.pdf · Multiple Seven Segments with MAX7221 Shift Registers 13 uses SPI to address does multiplexing](https://reader033.vdocuments.us/reader033/viewer/2022041914/5e68eac2a9de8053c3382b47/html5/thumbnails/16.jpg)
Analog Panel as Display 15
connect in series with 5k ohms resistor for typical 1mA meter
https://www.adafruit.com/products/252
![Page 17: Actuators - University of California, Berkeleycs194-126/fa16/lectures/actuators.pdf · Multiple Seven Segments with MAX7221 Shift Registers 13 uses SPI to address does multiplexing](https://reader033.vdocuments.us/reader033/viewer/2022041914/5e68eac2a9de8053c3382b47/html5/thumbnails/17.jpg)
Textual LCD Output 16
Hitachi HD44780 chipmultiple digital outs10k potentiometer for brightnessbacklight resistor 220 ohmsetCursor and print commands
https://www.adafruit.com/products/1447
![Page 18: Actuators - University of California, Berkeleycs194-126/fa16/lectures/actuators.pdf · Multiple Seven Segments with MAX7221 Shift Registers 13 uses SPI to address does multiplexing](https://reader033.vdocuments.us/reader033/viewer/2022041914/5e68eac2a9de8053c3382b47/html5/thumbnails/18.jpg)
Graphical LCD Output 17
KS0108 chipcontrast/backlight as wellneed driver softwaredriver has cursorTo, print, and geometry like rectangles and circles
https://www.adafruit.com/products/188
![Page 19: Actuators - University of California, Berkeleycs194-126/fa16/lectures/actuators.pdf · Multiple Seven Segments with MAX7221 Shift Registers 13 uses SPI to address does multiplexing](https://reader033.vdocuments.us/reader033/viewer/2022041914/5e68eac2a9de8053c3382b47/html5/thumbnails/19.jpg)
LCD with I2C and SPI Interfaces 18
needs fewer pinscould do this with an iop
https://www.adafruit.com/products/292
![Page 20: Actuators - University of California, Berkeleycs194-126/fa16/lectures/actuators.pdf · Multiple Seven Segments with MAX7221 Shift Registers 13 uses SPI to address does multiplexing](https://reader033.vdocuments.us/reader033/viewer/2022041914/5e68eac2a9de8053c3382b47/html5/thumbnails/20.jpg)
LED matrix 32 x 32 19
needs fewer pinsbunch of latchespwm in software
https://www.adafruit.com/products/607
![Page 21: Actuators - University of California, Berkeleycs194-126/fa16/lectures/actuators.pdf · Multiple Seven Segments with MAX7221 Shift Registers 13 uses SPI to address does multiplexing](https://reader033.vdocuments.us/reader033/viewer/2022041914/5e68eac2a9de8053c3382b47/html5/thumbnails/21.jpg)
NeoPixel RGB LEDs 20
PWMbig shift registertime critical
https://www.adafruit.com/products/1506
![Page 22: Actuators - University of California, Berkeleycs194-126/fa16/lectures/actuators.pdf · Multiple Seven Segments with MAX7221 Shift Registers 13 uses SPI to address does multiplexing](https://reader033.vdocuments.us/reader033/viewer/2022041914/5e68eac2a9de8053c3382b47/html5/thumbnails/22.jpg)
Utrabright LED Matrix with I2C 21
8x8 pixelsuse fewer pins with I2C
https://www.adafruit.com/products/1614
![Page 23: Actuators - University of California, Berkeleycs194-126/fa16/lectures/actuators.pdf · Multiple Seven Segments with MAX7221 Shift Registers 13 uses SPI to address does multiplexing](https://reader033.vdocuments.us/reader033/viewer/2022041914/5e68eac2a9de8053c3382b47/html5/thumbnails/23.jpg)
LED Matrix with Square Pixels and I2C 22
8x8 square pixelsuse fewer pins with I2C
https://www.adafruit.com/products/1857
![Page 24: Actuators - University of California, Berkeleycs194-126/fa16/lectures/actuators.pdf · Multiple Seven Segments with MAX7221 Shift Registers 13 uses SPI to address does multiplexing](https://reader033.vdocuments.us/reader033/viewer/2022041914/5e68eac2a9de8053c3382b47/html5/thumbnails/24.jpg)
Alphanumeric Four Pack with I2C 23
use fewer pins with I2C
https://www.adafruit.com/products/2158
![Page 25: Actuators - University of California, Berkeleycs194-126/fa16/lectures/actuators.pdf · Multiple Seven Segments with MAX7221 Shift Registers 13 uses SPI to address does multiplexing](https://reader033.vdocuments.us/reader033/viewer/2022041914/5e68eac2a9de8053c3382b47/html5/thumbnails/25.jpg)
LED Bar Graph 24
like having 10 LEDs butevenly spaced out in package
https://www.adafruit.com/products/1815
![Page 26: Actuators - University of California, Berkeleycs194-126/fa16/lectures/actuators.pdf · Multiple Seven Segments with MAX7221 Shift Registers 13 uses SPI to address does multiplexing](https://reader033.vdocuments.us/reader033/viewer/2022041914/5e68eac2a9de8053c3382b47/html5/thumbnails/26.jpg)
Physical Output 25
brushed motors – low costservo motors – accurate controlbrushless motors – more powerfulstepper motors – precise controlsolenoids – linear motionrelays – switches
![Page 27: Actuators - University of California, Berkeleycs194-126/fa16/lectures/actuators.pdf · Multiple Seven Segments with MAX7221 Shift Registers 13 uses SPI to address does multiplexing](https://reader033.vdocuments.us/reader033/viewer/2022041914/5e68eac2a9de8053c3382b47/html5/thumbnails/27.jpg)
Attributes 26
voltageamperagetorqueaccuracyspeedcostsize
![Page 28: Actuators - University of California, Berkeleycs194-126/fa16/lectures/actuators.pdf · Multiple Seven Segments with MAX7221 Shift Registers 13 uses SPI to address does multiplexing](https://reader033.vdocuments.us/reader033/viewer/2022041914/5e68eac2a9de8053c3382b47/html5/thumbnails/28.jpg)
Turning Brushed Motor in One Direction 27
use transistor and diode and capacitoruse separate power supplydigital output
gnd
out
1k
+V
gnd
1N4001
2N2222
Motor motorpowersupply
![Page 29: Actuators - University of California, Berkeleycs194-126/fa16/lectures/actuators.pdf · Multiple Seven Segments with MAX7221 Shift Registers 13 uses SPI to address does multiplexing](https://reader033.vdocuments.us/reader033/viewer/2022041914/5e68eac2a9de8053c3382b47/html5/thumbnails/29.jpg)
Controlling Direction of Brushed Motor 28
use H-Bridge circuitlogic table for outputconnect all gnds
en i1 i2 function1 0 1 turn clockwise1 1 0 turn counterclockwise1 0 0 motor stop1 1 1 motor stop0 x x turn clockwise
H-BridgeL293
o1 o2
i1 i2
vs
gnd
ena
vss
motor
+V
gnd
motorpower
enb
o3 o4
motor
i3 i4
![Page 30: Actuators - University of California, Berkeleycs194-126/fa16/lectures/actuators.pdf · Multiple Seven Segments with MAX7221 Shift Registers 13 uses SPI to address does multiplexing](https://reader033.vdocuments.us/reader033/viewer/2022041914/5e68eac2a9de8053c3382b47/html5/thumbnails/30.jpg)
Controlling Speed of Brushed Motor 29
use PWM to control speed
Motor(PinName pwm, PinName fwd, PinName rev, int brakeable)
float speed(float speed)
void coast(void)
float stop(float duty)
float state(void)
![Page 31: Actuators - University of California, Berkeleycs194-126/fa16/lectures/actuators.pdf · Multiple Seven Segments with MAX7221 Shift Registers 13 uses SPI to address does multiplexing](https://reader033.vdocuments.us/reader033/viewer/2022041914/5e68eac2a9de8053c3382b47/html5/thumbnails/31.jpg)
Servo 30
for precise positioningpotentiometer determines positionusually need 4.8V to 6V to drive servo but might need more currentcould use linear regulator to give output voltage say 5V 1.5A withcaps L4940V5 p83important to have separate power because of burst
gnd+5Vsig
![Page 32: Actuators - University of California, Berkeleycs194-126/fa16/lectures/actuators.pdf · Multiple Seven Segments with MAX7221 Shift Registers 13 uses SPI to address does multiplexing](https://reader033.vdocuments.us/reader033/viewer/2022041914/5e68eac2a9de8053c3382b47/html5/thumbnails/32.jpg)
Servo Control 31
send pulses with length of pulse say number of degreesdelay in between commands1ms 5V pulse turns to 0 deg, 2ms to 180, and in between scalelinearlyresend every 20ms to hold position
en i1 i2 function1 0 1 turn clockwise1 1 0 turn counterclockwise1 0 0 motor stop1 1 1 motor stop0 x x turn clockwise
www.seattlerobotics.org
![Page 33: Actuators - University of California, Berkeleycs194-126/fa16/lectures/actuators.pdf · Multiple Seven Segments with MAX7221 Shift Registers 13 uses SPI to address does multiplexing](https://reader033.vdocuments.us/reader033/viewer/2022041914/5e68eac2a9de8053c3382b47/html5/thumbnails/33.jpg)
Continuous Rotation Servo 32
remove potentiometerpulse says speed insteadsome servos are set to do 360 rotationspeed = (angle - 90) / 90.090 is stopped091-180 is forwards000-089 is backwardsmight not be exactly 90 for stop adjust or change code
![Page 34: Actuators - University of California, Berkeleycs194-126/fa16/lectures/actuators.pdf · Multiple Seven Segments with MAX7221 Shift Registers 13 uses SPI to address does multiplexing](https://reader033.vdocuments.us/reader033/viewer/2022041914/5e68eac2a9de8053c3382b47/html5/thumbnails/34.jpg)
Bipolar Stepper Motor 33
use either L293 or L298 H-Bridge depending on currentuse stepper driverstep from tooth to toothnot as fast as other motors but precisecan be higher voltage and current
H-BridgeL293
o1 o2
i1 i2
vs
gnd
ena
vss
+V
gnd
motorpower
enb
o3 o4
steppermotor
i3 i4
![Page 35: Actuators - University of California, Berkeleycs194-126/fa16/lectures/actuators.pdf · Multiple Seven Segments with MAX7221 Shift Registers 13 uses SPI to address does multiplexing](https://reader033.vdocuments.us/reader033/viewer/2022041914/5e68eac2a9de8053c3382b47/html5/thumbnails/35.jpg)
Brushless Motor 34
use electronic speed controller (ESC)separate power for ESCcut power to servo connector as brushless motor has its own powersame control as servo
ESP
gnd sig vs
motor
+V
gnd
motorpower
+5V
gnd gnd gnd
![Page 36: Actuators - University of California, Berkeleycs194-126/fa16/lectures/actuators.pdf · Multiple Seven Segments with MAX7221 Shift Registers 13 uses SPI to address does multiplexing](https://reader033.vdocuments.us/reader033/viewer/2022041914/5e68eac2a9de8053c3382b47/html5/thumbnails/36.jpg)
Solenoid or Relay 35
electromagnets that cause linear motionrelay provides switchneed transistor and diode in circuitdiode prevents reverse EMF from damaging transistor – polarity isimportant!calculate current from resistance using ohm’s lawuse transistor based on needed current either 2N2222 or TIP102
gnd
out
1k
+V
gnd
1N4001
2N2222
![Page 37: Actuators - University of California, Berkeleycs194-126/fa16/lectures/actuators.pdf · Multiple Seven Segments with MAX7221 Shift Registers 13 uses SPI to address does multiplexing](https://reader033.vdocuments.us/reader033/viewer/2022041914/5e68eac2a9de8053c3382b47/html5/thumbnails/37.jpg)
Vibrating Motor 36
bzzzzz
https://www.adafruit.com/products/1201
![Page 38: Actuators - University of California, Berkeleycs194-126/fa16/lectures/actuators.pdf · Multiple Seven Segments with MAX7221 Shift Registers 13 uses SPI to address does multiplexing](https://reader033.vdocuments.us/reader033/viewer/2022041914/5e68eac2a9de8053c3382b47/html5/thumbnails/38.jpg)
Toy Motor 37
wide 4.5V - 9V operating range
https://www.adafruit.com/products/1201
![Page 39: Actuators - University of California, Berkeleycs194-126/fa16/lectures/actuators.pdf · Multiple Seven Segments with MAX7221 Shift Registers 13 uses SPI to address does multiplexing](https://reader033.vdocuments.us/reader033/viewer/2022041914/5e68eac2a9de8053c3382b47/html5/thumbnails/39.jpg)
Brushed Motor with Encoder 38
12V4.4:1 gearmotor48 CPR encoder provding 2111.2 steps / revolution200mA free running
https://www.pololu.com/product/3237
![Page 40: Actuators - University of California, Berkeleycs194-126/fa16/lectures/actuators.pdf · Multiple Seven Segments with MAX7221 Shift Registers 13 uses SPI to address does multiplexing](https://reader033.vdocuments.us/reader033/viewer/2022041914/5e68eac2a9de8053c3382b47/html5/thumbnails/40.jpg)
Stepper Motor 39
12V200 steps / revolution4 wire bipolar350mA max range
https://www.adafruit.com/products/324
![Page 41: Actuators - University of California, Berkeleycs194-126/fa16/lectures/actuators.pdf · Multiple Seven Segments with MAX7221 Shift Registers 13 uses SPI to address does multiplexing](https://reader033.vdocuments.us/reader033/viewer/2022041914/5e68eac2a9de8053c3382b47/html5/thumbnails/41.jpg)
Plastic Water Valve 40
12V320mAuse 12V 1A power adaptor
https://www.adafruit.com/products/997
![Page 42: Actuators - University of California, Berkeleycs194-126/fa16/lectures/actuators.pdf · Multiple Seven Segments with MAX7221 Shift Registers 13 uses SPI to address does multiplexing](https://reader033.vdocuments.us/reader033/viewer/2022041914/5e68eac2a9de8053c3382b47/html5/thumbnails/42.jpg)
Peristaltic Liquid Pump 41
12V200-300mA
https://www.adafruit.com/products/997
![Page 43: Actuators - University of California, Berkeleycs194-126/fa16/lectures/actuators.pdf · Multiple Seven Segments with MAX7221 Shift Registers 13 uses SPI to address does multiplexing](https://reader033.vdocuments.us/reader033/viewer/2022041914/5e68eac2a9de8053c3382b47/html5/thumbnails/43.jpg)
Pololu Brushed Motor Controller 42
simple serial interface2 motors4.5 - 13.5V motorup to 1A (3A peak)logic level down to 2.7V
https://www.pololu.com/product/1110
![Page 44: Actuators - University of California, Berkeleycs194-126/fa16/lectures/actuators.pdf · Multiple Seven Segments with MAX7221 Shift Registers 13 uses SPI to address does multiplexing](https://reader033.vdocuments.us/reader033/viewer/2022041914/5e68eac2a9de8053c3382b47/html5/thumbnails/44.jpg)
Audio Tasks 43
alertstonessoundsmusic
![Page 45: Actuators - University of California, Berkeleycs194-126/fa16/lectures/actuators.pdf · Multiple Seven Segments with MAX7221 Shift Registers 13 uses SPI to address does multiplexing](https://reader033.vdocuments.us/reader033/viewer/2022041914/5e68eac2a9de8053c3382b47/html5/thumbnails/45.jpg)
Audio Space 44
fidelityloudnesscompute powerpolyphonynumber of output channels
![Page 46: Actuators - University of California, Berkeleycs194-126/fa16/lectures/actuators.pdf · Multiple Seven Segments with MAX7221 Shift Registers 13 uses SPI to address does multiplexing](https://reader033.vdocuments.us/reader033/viewer/2022041914/5e68eac2a9de8053c3382b47/html5/thumbnails/46.jpg)
Audio Output 45
hook up speaker with variable resistor and 100uF capuse PWM to drivefreq is 1/period
100uF
+
gnd
pwm
volumecontrol
![Page 47: Actuators - University of California, Berkeleycs194-126/fa16/lectures/actuators.pdf · Multiple Seven Segments with MAX7221 Shift Registers 13 uses SPI to address does multiplexing](https://reader033.vdocuments.us/reader033/viewer/2022041914/5e68eac2a9de8053c3382b47/html5/thumbnails/47.jpg)
Single Tones 46
freq and durationeasy to do yourself using pwm and timerscan also use library for this
mycontraption.com
![Page 48: Actuators - University of California, Berkeleycs194-126/fa16/lectures/actuators.pdf · Multiple Seven Segments with MAX7221 Shift Registers 13 uses SPI to address does multiplexing](https://reader033.vdocuments.us/reader033/viewer/2022041914/5e68eac2a9de8053c3382b47/html5/thumbnails/48.jpg)
Multiple Tones 47
can merge values using separate outputs with 500 ohm resistorswire them all together at speaker input
100uF
+
gnd
sig3500 ohms100uF
+sig2
500 ohms100uF
+sig1
500 ohms
![Page 49: Actuators - University of California, Berkeleycs194-126/fa16/lectures/actuators.pdf · Multiple Seven Segments with MAX7221 Shift Registers 13 uses SPI to address does multiplexing](https://reader033.vdocuments.us/reader033/viewer/2022041914/5e68eac2a9de8053c3382b47/html5/thumbnails/49.jpg)
Playing WavFile 48
output samples to real analog signal out (not PWM)use mBed library for thisneed to time output of samples
![Page 50: Actuators - University of California, Berkeleycs194-126/fa16/lectures/actuators.pdf · Multiple Seven Segments with MAX7221 Shift Registers 13 uses SPI to address does multiplexing](https://reader033.vdocuments.us/reader033/viewer/2022041914/5e68eac2a9de8053c3382b47/html5/thumbnails/50.jpg)
MIDI output 49
wire up to serial port31,250 bauduse MIDI commands
5vgndtx
270ohms
![Page 51: Actuators - University of California, Berkeleycs194-126/fa16/lectures/actuators.pdf · Multiple Seven Segments with MAX7221 Shift Registers 13 uses SPI to address does multiplexing](https://reader033.vdocuments.us/reader033/viewer/2022041914/5e68eac2a9de8053c3382b47/html5/thumbnails/51.jpg)
SGTL500 Based Audio Board 50
uses SGTL5000 codec16bit 44.1KHz audio samples
https://www.sparkfun.com/products/12767
![Page 52: Actuators - University of California, Berkeleycs194-126/fa16/lectures/actuators.pdf · Multiple Seven Segments with MAX7221 Shift Registers 13 uses SPI to address does multiplexing](https://reader033.vdocuments.us/reader033/viewer/2022041914/5e68eac2a9de8053c3382b47/html5/thumbnails/52.jpg)
WTV020SD Based Audio Board 51
uses WTV020SD codecuses 2 line serial for interfacing16bit 44.1KHz audio samples2 line differential PWM to speakersupports microsd card
https://www.sparkfun.com/products/11125
![Page 53: Actuators - University of California, Berkeleycs194-126/fa16/lectures/actuators.pdf · Multiple Seven Segments with MAX7221 Shift Registers 13 uses SPI to address does multiplexing](https://reader033.vdocuments.us/reader033/viewer/2022041914/5e68eac2a9de8053c3382b47/html5/thumbnails/53.jpg)
Logistics 52
Basic JITPCB due next TuesdaySection Monday in Jacobs 210 with Edward
![Page 54: Actuators - University of California, Berkeleycs194-126/fa16/lectures/actuators.pdf · Multiple Seven Segments with MAX7221 Shift Registers 13 uses SPI to address does multiplexing](https://reader033.vdocuments.us/reader033/viewer/2022041914/5e68eac2a9de8053c3382b47/html5/thumbnails/54.jpg)
Next Week 53
Bring Up and Debugging by RichardEmbedded SW Engineering by Richard
![Page 55: Actuators - University of California, Berkeleycs194-126/fa16/lectures/actuators.pdf · Multiple Seven Segments with MAX7221 Shift Registers 13 uses SPI to address does multiplexing](https://reader033.vdocuments.us/reader033/viewer/2022041914/5e68eac2a9de8053c3382b47/html5/thumbnails/55.jpg)
References 54
Exploring Arduino: Tools and Techniques for Engineering Wizardryby Jeremy BlumArduino Sketches: Tools and Techniques for Programming Wizardryby James LangbridgeArduino Cookbook, Michael Margolis30 Arduino Projects for the Evil Genius, by Simon Monkhttps://developer.mbed.org
http://www.adafruit.com
http://www.sparkfun.com
http://www.pololu.com
mBED cookbook https://developer.mbed.org/cookbook/Homepage