Download driver: https://learn.adafruit.com/adafruit-feather-huzzah-esp8266/using-arduino-ide

• Volts: The pressure of a charge or electrons that want to move through a circuit, as measured in the force required to hold back the charged particles (potential energy measured in Joules) times the number of charged particles (electrons) measured in Coulombs.

• Amps: (Current, I) Rate of flow of charge measured in electrons (Coulombs) per sec.

• Resistance: Amount of resistance to electron flow, measured in Ohms. Resistors limit amperage, but not voltage.

V = I x R

Since you are usally powering your circuit with a source with a stable voltage (for instance a 9V battery), the amount of current flowing through the circuit depends on the amount of resistance provided by components in the circuit.

If there is a lot of resistance, the current (amps, I in the equation) will be low.

Current is the same everywhere in a circuit.

Voltage is not the same everywhere in a circuit, it is always the voltage of the power supply at the beginning of the circuit, and 0V at ground. Voltage drops across components, but it remains the same across the entire length of a wire.

• 00-simpleLED Wire up an LED and write code to make it blink.
• 01-pwmLED Use pulse width modulation to fade an LED.
• 02-buttonInput Use a button to light an LED.
• 03-analogRead Use a potentiometer as an analog input.
• 04-photoSensor Make a light theramin, using a photocell as the analog input, and a buzzer as the analog output.
• 05-servos Move a servo with buttons.

• Adafruit Feather Huzzah 8266
  • pinout: https://learn.adafruit.com/adafruit-feather-huzzah-esp8266/pinouts
  • product page: https://www.adafruit.com/product/2821
  • tutorial page: https://learn.adafruit.com/adafruit-feather-huzzah-esp8266
  • kit with parts: https://www.adafruit.com/product/2680

• Prototyping Boards

Image	Name	Supplier's Info	Symbol	Eagle Part	More Info
	Slide Switch	Adafruit documentation
	Magnetic Contact Switch (Door Sensor)	Adafruit documentation
	Momentary Tactile Switch Button	Adafruit documentation		switch-omron:B3F-40XX

Image	Name	Supplier's Info	Symbol	Eagle Part	More Info
	Trim Potentiometer	Adafruit documentation
	Temperature and Humidity Sensor	Adafruit documentation

• [Motion Sensors]
• [Light Sensors]
• [Sound Sensors]

Image	Name	Supplier's Info	Symbol	Eagle Part	More Info
	RGB LEDs	Adafruit documentation

Image	Name	Supplier's Info	Symbol	Eagle Part	More Info
	Buzzer	Adafruit documentation

Image	Name	Supplier's Info	Symbol	Eagle Part	More Info
	Micro Servo	Adafruit documentation

• [Resistors]
• [Capacitors]
• [Diodes]

• potentiometers from build-electronic-circuits.com