Wex detects your location with ultrasonic sensors then follows you with his one flashing eye. His red “heartbeat” can be seen through his mouth.
Step 1:
Parts needed include:
Arduino
Two ping ultrasonic sensors
Futaba s3103 servo
Radio Shack 276-0016 7 color led
Radio Shack 276-036 flashing red led
9 volt battery
480 ohm resistor
680 ohm resistor
Metal duct tape
Super glue
Case (print 3d parts–use a printing service to print them–make your own case)
http://www.thingiverse.com/thing:32121
The software “looks to the left–turn left if something there”
“look to the right–turn right if something there”
“look straight if nothing to the left or right”
#include <Servo.h>
Servo myservo;
const int pingPin = 7;
const int pingPin2 = 9;
long duration;
long duration1;
void setup ()
{myservo.attach(5);
}
void loop ()
{
pinMode (pingPin, OUTPUT);
digitalWrite (pingPin, LOW);
delayMicroseconds (2);
digitalWrite (pingPin, HIGH);
delayMicroseconds (5);
digitalWrite (pingPin, LOW);
pinMode (pingPin, INPUT);
duration = pulseIn (pingPin, HIGH);
if (duration <5000)
{
myservo.write(125);
delay(500);
}
// else
{
pinMode (pingPin2, OUTPUT);
digitalWrite (pingPin2, LOW);
delayMicroseconds (2);
digitalWrite (pingPin2, HIGH);
delayMicroseconds (5);
digitalWrite (pingPin2, LOW);
pinMode (pingPin2, INPUT);
duration1 = pulseIn (pingPin2, HIGH);
if (duration1 <5000)
{
myservo.write(5);
delay(500);
}
if (duration >5000 and duration1 >5000)
{myservo.write(65);
delay(500);
}}}
Step 2:
Print the case–expect shrinkage cracks.
Step 3:
Cut up plastic scraps into a can.
Step 4:
Add acetone (fingernail polish removal section of stores) and stir. Fill the cracks and let dry.
Step 5:
Fasten Ping sensors to the triangular ear pieces. Add wire wrap wire to the Ping pins. Super glue the ears to the case.
[box color=”#985D00″ bg=”#FFF8CB” font=”verdana” fontsize=”14 ” radius=”20 ” border=”#985D12″ float=”right” head=”Major Components in Project” headbg=”#FFEB70″ headcolor=”#985D00″]Arduino
Two ping ultrasonic sensors
Futaba s3103 servo
Radio Shack 276-0016 7 color led[/box]
For more detail: Wex, the One Eyed Watcher using an Arduino
