The Fab Academy

Sensors, Actuators, and Displays

electrical safety
   ~1 mA: OK
   ~10 mA: shock, contraction
   ~100 mA: fibrillation
   body: M ohm external, k ohm internal
   skin depth: ~1/f^(1/2)
   dielectric breakdown: ~kV/mm

inventory

pin driver, comparator, A/D, PWM

through-hole
Sensors
switch
   button slide
   hello.button.45.cad
   hello.button.45.asm
light
   visible IR phototransistor
   hello.light.45.cad
   hello.light.45.asm
   hello.light.45.py
   color
temperature
   NTC thermistor
   hello.temp.45.cad
   hello.temp.45.asm
   hello.temp.45.py
   bridges
step response
   resistance, capacitance, inductance, position, pressure, proximity, tilt, acceleration, humidity, ...
   hello.step.45.cad
   hello.step.45.asm
   hello.step.45.py
sound
   microphone
   hello.mic.44.cad
   hello.mic.44.asm
   hello.mic.44.py
   op-amp
   hello.mic.44.op_amp.cad
sonar
   ultrasonic transmitter, receiver
vibration
   piezo
magnetic field
   Hall effect
acceleration, orientation
   accelerometer
motion
   pyroelectric
force, loading
   strain gage
image
   CMOS camera
Displays

RGB LED
   PWM
   hello.RGB.45.cad
   hello.RGB.45.asm
LED array
   Charlieplexing
   hello.array.44.cad 
   hello.array.44.2.cad (2 layer vinylcutter)
   hello.array.44.asm 
LCD
   44780
   hello.LCD.44.cad 
   hello.LCD.44.asm 
video
   RS170, NTSC, PAL, SECAM
   hello.video.44.cad 
   hello.video.44.asm 
Actuators
speaker
   MOSFET
   hello.speaker.45.cad 
   hello.speaker.45.pwm.asm 
   hello.speaker.45.wave.asm 
DC motor
   H-bridge
   torque, power, efficiency, gearing
   hello.H-bridge.44.cad 
   hello.H-bridge.44.asm 
stepper motor
   full, wave, half-, micro- stepping
   unipolar, bipolar
   hello.stepper.44.cad 
   hello.stepper.44.full.asm 
   hello.stepper.44.wave.asm 
   hello.stepper.44.half.asm 
motor control
   Rohm
   Allegro
   Freescale
servos
Assignment
interface an input device with an output device