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