Pololu Blog (Page 84)

Welcome to the Pololu Blog, where we provide updates about what we and our customers are doing and thinking about. This blog used to be Pololu president Jan Malášek’s Engage Your Brain blog; you can view just those posts here.

Popular tags: community projects new products raspberry pi arduino more…

November 2011 update: new building, new machines

Posted by Jan on 30 November 2011
November 2011 update: new building, new machines

Five months ago, I wrote that we “just finished a big facility expansion that was taking up a lot of my attention this year, so I have some more time now …” Well, that turned out to be wrong. It’s also been over a year since I started this blog, and so far, I am way behind my target of an article per week. It doesn’t help when I don’t post for four months, but some exciting stuff has happened in that time. Continued…

Simple 3pi Projects for the Arduino IDE

Posted by Ben on 8 August 2011

These projects by Daniel J. Sullivan are intended to introduce novice users to all the components on the 3pi robot and how they can be used while programming with the Arduino IDE. Each project builds on the one before it, and comments within the programs are used to provide background information when new items are introduced.

Continuous-rotation servos and multi-turn servos

Posted by Jan on 26 July 2011
Continuous-rotation servos and multi-turn servos

As I discussed in the introduction to servos, one of the consequences of hobby servos’ intended use is that rotation range is limited to about 180 degrees. In this post, I will talk about two exceptions to this general rule: continuous-rotation servos and multi-turn servos. Each of these products loses some features in return for increased rotational range, so none of them are the ideal actuators many would like them to be. There are some specialty servos developed for robot applications that get around the limitations, but those servos are not as standardized and do not really fit into the hobby servo category, so I am not going into any more detail on those beyond mentioning that they exist. Continued…

"Mr. Twitchy" project featuring Wixels

Posted by Ben on 8 July 2011

Mr. Twitchy is a project that uses two Wixels to wirelessly control an electrical stimulation device. The project was featured in Sparkfun New Product post.

"Blackbeard's Chest" animatronic display

Posted by Ryan on 1 July 2011

Blackbeard’s Chest by SkullTroniX uses two jrk motor controllers with feedback to control linear actuators as part of a spooky animatronic display.

Low-cost hexapod

Posted by Kevin on 24 June 2011

A Mini Maestro 24-channel USB servo controller controls three servos in each of this insectoid robot’s six legs. For more information, see this thread on the Trossen Robotics forums.

New Products

7.5V, 3A Step-Down Voltage Regulator D30V30F7
Ribbon Cable Premium Jumper Wires 10-Color F-F 60" (150 cm)
Motoron M2U550 Dual Serial Motor Controller
Motoron M3S550 Triple Motor Controller Shield for Arduino (Connectors Soldered)
Motoron M2T550 Dual I²C Motor Controller (Header Pins Soldered)
5V, 3.4A Step-Down Voltage Regulator D30V30F5
12V, 2.5A Step-Up/Step-Down Voltage Regulator S13V25F12
7.5V Step-Up/Step-Down Voltage Regulator S8V9F7
LPS22DF Pressure/Altitude Sensor Carrier with Voltage Regulator
Motoron M3S550 Triple Motor Controller Shield for Arduino (No Connectors)
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