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We have another batch of Mechaduinos in production that will be available for purchase here in a few weeks. Sorry for the delay. We decided to add a couple of improvements to the boards which slowed things down a bit. We will be posting details about the improvements shortly in an updated version of the Mechaduino manual. We’ll upload the updated source files to github as soon as we’ve polished them up.


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New Firmware and Manual

We’ve released an updated version of the firmware!

Improvements include:

-Better PID algorithms
-Better step/dir/enable interface support
-Trapezoidal trajectory movements (for slow movements in position mode)
-Cleaner, better commented code

We’ve also included the Mechaduino Manual with the new release which includes examples and a guide to the firmware!

Older versions of the firmware are available here.

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How to get your Mechaduino up and running

For the latest, most up-to-date instructions on how to configure your Mechaduino, please check our page. (Sorry, this website is a little cumbersome…we’re hardware people not website people).  In particular, check out the instructions section.

The latest firmware can be found on our github repository.

We’ve also created a google group for users to share technical info.

Right now we are working hard to make sure everyone receives their hardware, so we may be a little slow to respond to individual questions.  Please check out the above resources first!



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Mechaduino 0.1 sent to manufacturer

It’s been a busy couple of weeks here at Tropical Labs.  We’ve been painstakingly refining our next Mechaduino board design.  This version features hardwired connections to the motor driver and encoder (no more jumpers!), fewer through-hole components (only connectors), 5V compatible level shifters on D0 and D1, and a more thoughtful board layout.  The new boards will be slightly smaller, and will not overhang the edge of a NEMA 17 motor.  We also arranged our power connections so that a 3 terminal 5V regulator (the classic 7805 or a modern switching equivalent), could be installed for single supply operation.

Earlier this week, we wrapped up the final schematic/board layout and sent the designs to our manufacturer, MacroFab.  The latest designs files are available on github.