Breadboards and Multimeters

• DEVICES: solderless breadboard, jumper wires, protoshield, resistors (concept, color code), LEDs (diodes, LEDs, polarity, voltage/current, dissipation, current limiting w/series resistor)
• TOOLS: multimeters to measure voltage, current, resistance
• THEORY: voltage, current, resistance, Ohms law
• HANDS-ON: get several LEDs blinking on the breadboard in patterns (holiday lights)

• Multimeter
  • Continuity testing
• Breadboard
  • Connections
  • Jumper wires
  • Measure continuity to see what's connected / not
  • Show other breadboards (busses, etc.)

• Resistors
  • What is a resistance (pipe w/rocks analogy)
  • Multimeter
    • Measuring resistance (ohm meter)
  • Color Code
  • Series resistance
  • Parallel resistance
  • Ohms Law
    • measure current through LED/resistor circuit (ammeter)
    • calculate current using voltage & resistance (voltmeter)
• Applications
  • current limiting (LED, pull-up)
  • current sensing (motor current)

• Diodes
  • one-way valve for electricity
  • Anode (+) Cathode (-)
  • Multimeter - Measure continuity
  • light emitting diodes
    • identifying anode/cathode
  • Series resistor for protection
  • Experiments

Experiments

• ​Blink an LED
• ​Multiple LEDs