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AN_8013

Title:
AVR245: Code Lock with 4x4 Keypad and I2C LCD on a tinyAVR
Name:
AN_8013
Date:
12/10/2016
Description:
This application note describes how to build a code lock with an tinyAVR and a handful of components. The code lock uses a 4x4 keypad for user input, a piezoelectric buzzer for audible feedback and an LCD for informational output.
 
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