The 3DoT Board

Hey Hackaday! If you are interested in trying out the 3DoT board for one of your projects, it will be available soon on Crowd Supply so we can place a bulk order! 

Sign up for a notification when it goes live here: https://www.crowdsupply.com/humans-for-robots/3dot-board

Check out the last project log to see the latest and prettiest version of the board yet ;)

Just finished soldering version 10 of the board. This is a super polished version I'll be releasing as a crowdsupply project so keep an eye out ;)

The kind of things people are making with the 3DoT board ;) Note the computer does not have to be on the same network, it could be anywhere in the world.

I think the layout could use some work, but the prototypes of the ARM 3DoT using an NRF52840 chip are doing great - being able to use almost any pin for anything makes the board a lot more flexible!

Of course, the AVR processor is still preferred for educational purposes, for ease of use explaining the 8-bit architecture and simple assembly language.

Both versions now also have a QR code to guide you to the app download and setup instructions. Funnily enough it seems like adding the QR code to the board made the PCB manufacturers increase the print quality of the silkscreen, since the rest of the silkscreen also looks sharper now.

Originally uploaded to Instagram, a quick 30 second video showcasing the PaperBot chassis.

https://www.instagram.com/p/B3LLMcjBtaA/

If you believe in teaching from the ground up, this is something you will want to check out. Most engineering educational content starts at highest level, using graphical blocks and buttons to press, but we're going to try to use the 3DoT board to teach how things really work, instead of how to press buttons.

The workshop is two parts, each probably an hour long. By the end of the first workshop the students can make the robot's motors and lights turn on and off, and at the end of the second workshop it can follow a line drawn with black marker. All programmed in machine code.

https://www.arxterra.com/machine-code-workshop/

https://www.arxterra.com/machine-code-workshop-2/

And here's what the chassis used by CSULB students look like! Note the IR sensors are not soldered in this edition since the students will be soldering them to the optimal distance themselves.

Just shipped out 3DoT starter kits to CSULB students for their assembly and c++ electrical engineering class. VERY excited about 80s-style this packaging :)