Timer

Version française / French version

Need a timer ? Let's make one with an Arduino Uno and DF Robot LCD Keypad Shield

Demo : https://www.youtube.com/watch?v=j7cAT0RNRh0

Manual

• LEFT: -1 minute
• RIGHT: +1 minute
• UP: +1 hour
• DOWN -1 hour
• RST: Reset timer
• Select: Turn off/on backlight

Components:

• Arduino Uno ch340g : 3.57€
• DF Robot LCD Keypad : 2.98€ Estimate cost : 6.55€

Instructions

• Download : http://lcdclock.madnerd.org
• Copy lcdclock and libraries into your arduino sketchbook (Documents/Arduino)
• Upload lcdclock.ino

Software needed:

• Arduino Software: http://arduino.madnerd.org

Libraries (included)

Liquid Crystal : https://www.arduino.cc/en/Reference/LiquidCrystal
Time : http://playground.arduino.cc/Code/Time