Introduction to Electronics
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Syllabus
- Introduction to the breadboard - plug in battery and lamp
- Add a switch to the low side and the high side
- Charges as energy carriers - unit: Coulomb
- Circuits as energy carriers - analogy to water heating, compare with static electricity, solar energy
- Conventional current flow and electron flow, and why they got it wrong
- Voltage as electromotive force and as electrostatic potential difference
- Definition of current - unit: Ampere
- Definition of power - unit: Watt
- Sources of voltages: batteries, chemicals, generators, potatoes
- Resistance
- Definition - unit: Ohm
- Ohm's law
- Low resistance vs. high resistance - which is better?
- Concept of a circuit's load
- Unusual resistors: potentiometers, photoresistors, PTC and NTC thermistors, force sensors, water level sensors
- What is the resistance of our lamp?
- Power formulas for resistors
- Diodes
- Characteristics of diodes
- Diodes as current driven devices
- How do we limit the current?
- What happens if we don't limit the current?
- Powering an LED directly from battery, internal resistance, parasitics
- What determines the forward voltage?
- Reading a datasheet
- Put in a photoresistor
- Put in buttons and switches
- Diodes in series
- What happens if the supply voltage is too low?
- Diodes in parallel - don't do it!
- Polarized and non-polarized components
- Reading a schematic
- Using a multimeter
- Measuring voltage
- Measuring current
- Continuity test
- Measuring resistance
- Electrical laws
- Build resistor circuits in series with LED to illustrate
- Series and parallel
- Kirchoff's voltage law and the voltage divider - illustrate with potentiometer
- Kirchoff's current law and the current divider - illustrate with LEDs
- KVL and KCL are not lies
- Capacitors
- Capacitors as filters
- Pushbutton/LED example
- Capacitors as batteries - illustrate with supercap
- Transistors
- Transistors as electronic switches, motivation
- Simple transistor circuit with LED and pushbutton
- LED/photoresistor example
- Pullup and pulldown resistors
- 555 timers
- Build blinking circuit
- Astable and monostable operation
- What does the 555 output do? Alternating between 2 LEDs
- Atari punk console!
- Introduction to logic
- Electricity as information carrier
- Building an inverter
- Building a NAND gate
- Integrated circuit gates
- Combining gates
- Building a flip flop
Parts
Discover Electronics Kit from Sparkle Labs plus the following:
- Incandescent bulb CM7387-ND
- 74HC10 3-input NAND gate
- 74HC08 2-input AND gate
Alternative parts kit
- Solderless breadboard $5 from dx
- Jumper wire assortment $7.18 for 4
- 10k pot $2.22
- LEDs
- Resistors for LEDs
- 10K resistors
- Pushbutton switch
- 2N3904
- Capacitors - 100uF
- Battery holder
- Battery
- Incandescent bulb
$10?
