3. Diagram and Materials
##Diagram
The resistor named "R" has a value of 220Ohm.
The buzzer is a piezo type buzzer.
The button is a big arcade game console type of button with a built in LED light.
The LiPo battery I have used is a 3.7V - 1100mAh type.
Arduino MKR1000 This has not been released for sale yet, so th eonly way to get one was to participate in this contest.
Button with builtin LED Many different usefull types available on Ebay. Try this search and see what pops up.
Piezo Buzzer Any piezo buzzer will do. I just picked one laying around.
DHT22 temperature and Humidity sensor Also available on Ebay. Try this search.
LiPo Battery Read the MKR1000 documentation about the battery. Then pick any.