Page 189 - Programming the Photon Getting Started With the Internet of Things

Code Description Source

R1 220-Ω ¼-W resistor Particle Kit

SeeedStudio

SparkFun

Adafruit

R2 10-kΩ potentiometer Particle Kit

SeeedStudio

SparkFun

Adafruit

R3 10-kΩ ¼-W resistor Particle Kit

SeeedStudio

SparkFun

Adafruit

R4 Photocell Particle Kit

SeeedStudio

SparkFun

Adafruit

R5 4.7-K ¼-W resistor SeeedStudio

SparkFun

Adafruit

Table A.2 Resistors

After a while you might find yourself buying a lot of resistors, and in some cases it is

better to buy them in kits, which stock the most popular values used in everyday
electronics.

Some companies that sell resistor kits are

SeeedStudio: 110990043

SparkFun: COM-10969

Semiconductors