This little device recorded how long a button was held, then counts down the number of seconds in binary form using physical levers connected to servo motors as indicators. Made for a final project in Intro to Engineering at Santa Clara University. This was a team project, but all images and content shown were created by me.
Materials
- 1 Arduino Uno board
- 4 x 180° Servos
- Breadboard
- Popsicle stick indicator arms
- External battery
Code Schematic
Binary Conversion Key
A “0” is represented by a lowered arm, and a “1” is represented by a raised arm.
0000 = 0 seconds
1000 = 1 second
0100 = 2 seconds
1100 = 3 seconds
0010 = 4 seconds
1010 = 5 seconds
0110 = 6 seconds
1110 = 7 seconds
0001 = 8 seconds
1001 = 9 seconds
0101 = 10 seconds
1101 = 11 seconds
0011 = 12 seconds
1011 = 13 seconds
0111 = 14 seconds
1111 = 15 seconds