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Step 6: PCB Design

The Pingbot uses a single sided circuit board with wire jumpers soldered underneath. It was made with a type of circuit board that is coated with a light sensitive film, a devolper for that film, ferrite chloride to etch the board, and a tining solution kit. The components were then soldered to the board by hand using a fine tipped soldering iron.

Drawing the Circuit Board
Using Adobe Illustrator I created different layers for the traces, components, the grounding plane, and the part labels. Using the component's data sheets as reference I then drew out all the components to their actual size and arranged them to fit within a 37mm diameter circle. Traces were drawn according to the schematic to connect the components.

I used Illustrator because I am familiar with it, but the most common way to design circuit boards is Eagle PCB, a free software from Cadsoft . This program can be used to draw out a schematic that can be converted into a PCB layout. The designs and files that it generates can be printed out or sent to a manufacturer to be fabricated.

Charge LED, I'm Doing it Wrong
While designing this PCB I had assumed that the MAX1555's charge LED should be connected to ground. After I had finished soldering I did some testing and found that the LED wasn't doing anything. It should have lit up when the robot was connected directly to a USB port and the battery was charging, but that didn't happen. Turns out the LED should have gone to +V...

To fix this I desoldered and lifted the LED's lead, the one that I thought went to ground, from the PCB and connected it to +V with a jumper wire above the board. I stuck a dab of hot glue under this LED to make sure the lead didn't touch the ground pad. This error was corrected in the schematic, but I have not fixed it in the PCB layout. Instead I've just shown the jumper wire.
<p>I have been kind of wanting to build this for more than half a year. Or is it a year now... I don't know how, and have very limited experience in the field. The most I have done is one of those robots on a platform that move when you move a remote. I did write the code myself though, with the help of my teacher. It was written in C, which of course would not work for this project. I am no longer in contact with the teacher that was going to help me with this, and there are no robotics teams near me currently. I was just wondering if anyone has any suggestions? </p>
<p>Oh and one more thing, do you think I can do this with an arduino mini or something instead of building my own circuit? Or is that a necessary part? </p>
<p>I'm not sure if there is a need really, although I have had a handful of students and teachers contact me looking to make their own versions for educational purposes.</p>
<p>The first road I would try would be to add a sound sensor. Then you could set up 3 IR/Sound beacons in a room. The robot would receive a light and sound signal from the beacon and measure the time between the IR and audio to determine distance.</p><p>www.bosswallpapers.com</p>
saya sudah mebuat ini tetapi saya bingung bagai mana cara nya saya untuk memasukan data program dan bisakah saya minta data untuk memprogram pingbot? makasih
<p>ean man i wish i had one</p>
<p>Its tremendous<br><br></p>
<p>I'm not sure if there is a need really, although I have had a handful of students and teachers contact me looking to make their own versions for educational purposes.</p>
<p>ean man i wish i had one</p>
clean man i wish i had one
thanks for sharing
I'm not sure if there is a need really, although I have had a handful of students and teachers contact me looking to make their own versions for educational purposes.
when suggesting scavenging from old appliances a picture of the component would be nice if only to save us some time.
that is so cool is this going to be on the market or is there even a need for this?
I'm not sure if there is a need really, although I have had a handful of students and teachers contact me looking to make their own versions for educational purposes. <br> <br>As for marketing, well, I'm learning about the process, but I'm certain that this will never be made into toy that your going to find at the store. However, the kit bundle version should be available soon; it has been submitted to Club Jameco and is making the final rounds now. <br> <br>Thanks for checking out the project, happy you liked it :)
yeah I thought it was neat
that looks AWESOME, Where did the idea come from?
Thank you Jenson that's great to hear :D <br>The idea came from all over the place. For the look of the robot, the movie &quot;Batteries Not Included&quot; had a major influence. As for the actual robot, I'd seen several of these little picaxe robots, such as the one by Mikey77 here on instructables, and wanted to make one of my own as a way to learn Picaxe and li-po battery charging.

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Bio: When I was young I took all of my toys apart just to see inside. Eventually I learned how to put them back together.
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