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

RGB LED
   PWM
   hello.RGB.45.cad components traces outline C make

LED array
   Charlieplexing
   hello.array.44.cad components traces outline C make
   
LCD
   44780
   hello.LCD.44.cad components traces outline C make

video
   RS170, NTSC, PAL, SECAM
   75 ohm impedance
   hello.video.44.cad components traces outline C make asm
   thinner client

speaker
   MOSFET
   hello.speaker.45.cad components traces outline C make wavetable

DC motor
   H-bridge
   torque, power, efficiency, gearing
   hello.H-bridge.44.cad components traces outline C make

stepper motor
   wave, full, half-, micro-stepping
   unipolar, bipolar
   electro-permanent
   hello.stepper.44.cad components traces outline wave make full make half make

motor control
   Rohm
   Allegro
   Freescale

servos

shape memory

piezo

assignment
   control an output device

gurus
   CBA shop section:
   Arch. shop section:

lab sections
   CBA shop section: Maxim Lobovsky
   Arch. shop section: David Cranor