June 2016
Intermediate to advanced
272 pages
5h 4m
English
In this project we’ll create a programmable countdown timer that we’ll use to launch a rocket by igniting a fuse when the countdown reaches 0.


PARTS REQUIRED
• Arduino board
• Breadboard
• Jumper wires
• Four-digit, seven-segment serial display
• Piezo buzzer
• 2 momentary tactile four-pin pushbutton
• 50k-ohm potentiometer
• 3 LEDs (red, green, yellow)
• 3 220-ohm resistors
LIBRARIES REQUIRED
• SoftwareSerial
We’ll use a four-digit, seven-segment serial display that has a built-in integrated circuit to control the ...
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