Posts Tagged ‘dobot’

Where do you get the Dobot handshaking wires?


I’m teaching CIM for the first time in a few years and am a bit rusty. I’m getting ready to start using the Dobots. I don’t remember this 4 wire piece that goes into the breadboard. I know I have a lot of 3 pronged ones from vex. Do you know what it’s called and where I can get one? I know that you can use any wire and make it work, even the 3 wire version used with the lynx, but these make it so easy to use…


Well, good news and bad news! Good news: these wires are 700 mm Molex or Dupont, female to female, connectors and are commonly used for building 3D printers and making stepper motor connections. They do make it very easy, and sometimes the colors are different too. Also, if you’re an eighth grader, any other color wire probably won’t work, right? Right Mr. Hurd?!?! They used to be very easy to find….

700 mm Molex or Dupont, female to female, connectors

Bad news: We seem to have made them so popular with the Dobots, that they are getting pretty scarce and hard to find. Just so you know, I did a search on Amazon and found…. NONE! If Amazon doesn’t have them, who does, right? The other bad news is that most of these are inexpensive and come straight from China. We all know how that’s playing out with our President now don’t we?!?! Write him a thank you for the price increase on the Dobots as well.

Real Answer:

So I did some research, and the only place I could find them was AliExpress… a seedy website that allows you to buy stuff for manufacturing inexpensively through China. I decided to use a gift card and a burner email and try to order them and see what happens. I must admit, I was pleasantly surprised.

On AliExpress, I ordered these: I made sure to choose 4 pin and 70 cm for length. At the time, they were about $3.40 for a lot of 10, so I ordered 100… and the total came to $37.31 out the door… that’s 37 cents apiece! This place is notorious for long waits too…. and luckily for me, I ordered on Feb 11, and I received them Feb 25! BONUS!


I know for a fact that my district will not order through this company, and I doubt yours will either… just wanted to see if it actually worked. Neither do I condone the use of seedy websites to buy things from questionable sources, or use burner emails and sketchy practices to acquire stuff I need, but when you need a few 4 pin 70cm, Dupont, F to F, connector, what is one to do?!?

Good luck on your quest for connectors, and if you find a vendor that schools can use that is a reputable source, please let us know!

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01 T&P Robot Axis & Movement

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Download Blank Field Template

Jointed arm robots are useful for many different tasks because of its range of motion and degrees of freedom. In this activity you will learn how to move a robotic arm in many different ways and write a program to make the robot write the word “CIM” with accuracy and repeatability. CIM stands for Computer Integrated Manufacturing.

Video Coming Soon…

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06 Presentation-Dobot Blockly Hardware Connections


This presentation is meant to be an introduction to all of the different devices that can be interfaced with the Dobot Magician in terms of hardware. Both Jim and I suggest using this in the classroom as a student resource, rather than a presentation that you go over slide by slide; Although, there may be some value in introducing some of the hardware that you may use in your class at this point.

Just give it to the kids as a resource, let them download it, and use it as they need it!

Video Coming Soon…

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14 Blockly-Curriculum

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This curriculum was designed to teach high school and college level students the basics of
robotics, as used in industry, using the Dobot Magician, DobotStudio software, and the
blockly programming language.
Through these activities, you will also be able to make the robot interact with other devices
including, but not limited to:
● Arduino microcontrollers
● Color sensors
● Conveyor belts
● Other outputs like motors and LED’s
● VEX Cortex microcontroller
● Infrared sensors
● Other robots
● Other inputs like microswitches and
Introduction: Defining Artificial Intelligence
A lot is being reported about artificial intelligence and robotics in industry, and it is probably
one of the most controversial issues surrounding robots… If you do not understand it. The
way that we wish to address it in this document depends on how it is defined. For our use
here Jim and I will define it as such:
Artificial Intelligence(AI): Using computers, microcontrollers, and other
electronic devices to replicate intelligent behavior to automate tasks and make
manufacturing more efficient.
We would like to look at AI from a practical standpoint. How AI helps us in industrial robotics
and automation is what intrigues us the most and what we are most passionate about. In that
vein, the next question to answer then is: “How does this curriculum embody artificial
With the above definition of AI, isn’t a lot of automation & robotics considered artificial intelligence? Take these instances of what students will be able to do with a dobot and this
● Make a motor run forward or backwards depending on what time it is.
● Make a light bulb light up when you want it to. Better yet, make different color lights
light dependent upon what you want.
● Determine what color an object is and then decide where to put it.
● Change the speed of a motor dependent upon where an object is.
● Mathematically calculate where to put the next box on a pallet, or to stack objects
● Make a robot talk to another robot and decide when to perform certain actions.
● Make a robot talk to another device to perform a myriad of automation and
manufacturing tasks.
● Make a robot 3D print a necessary part for you, or laser engrave a barcode on each
passing part of an assembly line. All of these are possible with only a Dobot Magician, A microcontroller, this curriculum, a little
determination, and a lot of curiosity.
Introduction: Defining Industry 4.0
Here’s another term that is being widely used in Industry, and being touted as the next
greatest thing in manufacturing. What does it mean? Again, we have to define it for ourselves
so that we can move forward, and possible embrace it. From our limited research and
knowledge of the topic we would like to define it this way:
Industry 4.0: The 4th industrial revolution where manufacturing facilities employ
computers, machines, and technology, that have inputs and outputs that allow them to
wirelessly connect to ever larger manufacturing systems.
No more is a drill press just a drill press. It may be a CNC machine that has a vision system
that knows where a hole has to go as well as what size it is. Also this machine can be
programmed on the fly to change rapidly if a different order comes in from a different vendor.
It’ll even tell the customer when the part will be done, and in some instances, some factories
will even let customers watch their parts being produced via webcam. The list of tasks above
in the definition of AI are all within reach of high school and college students alike, and aren’t
these tasks all a part of Industry 4.0?
With a Dobot Magician, this curriculum, and a bunch of spare parts, computers, and some
ingenuity, students will definitely be headed in the right direction towards being a part of the
future of Industry; no matter what it’s called when they graduate.

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Jim Hanson

Chris Hurd


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