Parking Sensor

Wire Cable - By the Foot

LED (generic)

Resistor 10k ohm

Arduino Mega 2560

Male/Female Jumper Wires

Soldering iron (generic)

Ultrasonic Sensor - HC-SR04 (Generic)

3D Printer (generic)

<h3 >In Action </h3><div class="se-component se-video-container __se__float-none" contenteditable="false" style="width: 100%;"><figure style="width: 100%; height: 56.25%; padding-bottom: 56.25%; margin: 0px;"><iframe frameborder="0" allowfullscreen="" src="https://www.youtube.com/embed/gJPS7HRmfeo" data-proportion="true" data-percentage="100%,56.25%" data-size="100%,56.25%" data-align="none" style="width: 100%; height: 100%;" data-index="0" data-file-size="0" data-origin="100%,56.25%"></iframe></figure></div><h3 >Back Story</h3>The overall point of this project was not to make litho boxes but that is what ended up happening. I wanted to make lights that would alert my wife andI to how close our truck was to the wall when parking in the garage. I modified the sensor code off the Arduino website and made some litho boxes to be illuminated by the LEDs.The Boxes: The boxes turned out to be quite awesome. I realized when I was making them that these could also be used as a decoration to spell out someone's name or to make a cool custom lamp.Each box contains a LED and a wire that runs to the board. The boxes have a passthrough channel so the wires are hidden. Each litho pane slides in so you can change them without removing the boxes. Be careful when printing as there is a left, right and middle box. Make sure that when connecting your LED that you use a resistor that is suited to your LED.Litho panes: I used paulbovbel litho pane customizer and in my slicer. I made them .75 of the original. The panes, as I said above, are able to slide into the the boxes without removing the boxes themselves, enabeling you to change what appears easlly.Thank you paulbovbl! LINK----&gt; <a href="http://bit.ly/SWEETLITHO">http://bit.ly/SWEETLITHO</a> to his page.Not included: I did print a case for the arduino and the ultrasonic sensors; however, since I did not make these I will not include the files. A quick search and you will find many suited to your needs.<pre ><code >#define trigPin 7 #define echoPin 6 #define led 13 #define led2 12 #define led3 11 #define led4 10 #define led5 9 #define led6 8 void setup() { Serial.begin (9600); pinMode(trigPin, OUTPUT); pinMode(echoPin, INPUT); pinMode(led, OUTPUT); pinMode(led2, OUTPUT); pinMode(led3, OUTPUT); pinMode(led4, OUTPUT); pinMode(led5, OUTPUT); pinMode(led6, OUTPUT); } void loop() { long duration, distance; digitalWrite(trigPin, LOW); delayMicroseconds(2); digitalWrite(trigPin, HIGH); delayMicroseconds(10); digitalWrite(trigPin, LOW); duration = pulseIn(echoPin, HIGH); distance = (duration/2) / 29.1; if (distance &gt; 13 &amp;&amp; distance &lt; 200) { //green 1 digitalWrite(led, HIGH); } else { digitalWrite(led,LOW); } if (distance &gt; 13 &amp;&amp; distance &lt; 125) { //green2 digitalWrite(led2, HIGH); } else { digitalWrite(led2, LOW); } if (distance &gt; 13 &amp;&amp; distance &lt; 100) { //yellow 1 digitalWrite(led3, HIGH); } else { digitalWrite(led3, LOW); } if (distance &gt; 13 &amp;&amp; distance &lt; 50) { //yellow 2 digitalWrite(led4, HIGH); } else { digitalWrite(led4,LOW); } if (distance &gt; 13 &amp;&amp; distance &lt; 30) { //red1 digitalWrite(led5, HIGH); } else { digitalWrite(led5,LOW); } if (distance &gt; 13 &amp;&amp; distance &lt; 20) { //red2 digitalWrite(led6, HIGH); } else { digitalWrite(led6,LOW); } if (distance &gt;=200 || distance &lt;=13){ Serial.println(&#34;Out of range&#34;); } else { Serial.print(distance); Serial.println(&#34; cm&#34;); } } </code></pre>

How to wire

Litho boxes and panes

Parking Sensor

Yes, you could use a tennis ball but who doesn't like things that light up?! For real, this is a great way to help you park in tight spaces.