#Parts
- 2x TowerPro SG90 9G Mini Servos
- 10k Potentiometer
- Toggle Switch (SPST)
- Arduino Uno (+ power supply)
- 22 Ohm resistor
- 5v laser diode http://a.co/90wOem9
- Hot Glue
#Hooking it all up
- Attach servos such that there is a base servo that controls the vertical axis and a second servo hot glued to the end (via plastic spinny thing that comes with the servo) that controls the horizontal axis. See above image
- Glue laser diode to one of the plastic connectors for the top, horizontal axis servo and attach to servo.
- GND from Arduino and ground pins for Potentiometer, servos, and laser diode should all be connect as common ground
- 5v power from Arduino connects to both power cables of servos as well as input pin of Potentiometer
- Pin 6 from Arduino connects to 22 Ohm resistor which then connects to + of laser diode
- Pin 2 from Arduino connects to Toggle switch which then connects to ground. We will be using the INPUT_PULLUP setting on that pin so we don't have to worry about adding a pullup resistor.
- Analog Pin A0 from Arduino connects to output pin of Potentiometer
- Pin 9 (PWM) from Arduino connects to signal pin of base servo (Vertical axis)
- Pin 6 (PWM) from Arduino connects to signal pin of second servo (Horizontal axis, the one with the diode on it)
- Upload catlaser.ino to the Arduino