chiptopher / abacus

Mathematical Alarm Clock built on the Arduino Platform

Abacus

Abacus is an alarm clock created using the Arduino platform. The primary feature of the Abacus is that when the alarm goes off a math problem displayed on the LCD is required to terminate it.

Components and techniques used to develop the Abacus include:

• Multiplexed 4 Digit 7-Segment Display
• Liquid Crystal Display
• Button Matrix for Input
• State Transition Table for Machine State
• 74HC595 Output Register
• Atmega328p and ATTiny85 microcontroller programming

The libraries were developed in C, but since the Arduino playform required C++, they were converted.

The Atmega328p is prgrammed with the Abacus.ino file and the Attiny85 (which powers the alarm) is programmed with the AbacusAlarm.ino file.

Additionally, the Time Library would be required to compile the program.