Pololu Blog (Page 19)

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.

Node.js module for Maestro servo controllers

Posted by David on 9 September 2013
Node.js module for Maestro servo controllers

The node-pololumaestro project is a module for the Node.js platform that allows you to control a Maestro USB Servo Controller over its serial interface from a Node.js program. This module provides functions like maestro.setTarget(0, 1500) and internally takes care of assembling the bytes of the serial command for you. The module was written by Owen McAree and was recently expanded by achingbrain. We always like to see our customers helping each other through projects like this!

Featured link: https://npmjs.org/package/pololu-maestro

Four new NEMA 23 hybrid stepper motors

Posted by Paul on 6 September 2013
Tags: new products

We have expanded our selection of NEMA 23-size stepper motors:

Three of the steppers are in a new 57×56 mm size. We are carrying three voltage/current options: 7.4V, 1 A/phase, 3.6V, 2 A/phase, and 2.5V, 2.8 A/phase.


We have also added a new 4.5V, 2 A/phase option to our selection of larger 57×76 mm stepper motors, at an intermediate point between the 8.6V, 1 A/phase and 3.2V, 2.8 A/phase motors.


We carry one other NEMA 23-size motor in a 57×41mm, 5.7V, 1 A/phase configuration, as well as many other stepper motors.

Adding audio to an m3pi with a SpeakJet

Posted by Jamee on 5 September 2013

In this video, Jerry Guttman shows off his Pololu m3pi Robot combined with the SpeakJet Phraselator Speech Development System. The SpeakJet chip was developed by Magnevation and allows for speech synthesis and robot sound effects.

Featured link: http://www.youtube.com/watch?v=dYWQB12Ibsw

Small things in the pipeline

Posted by Ben on 4 September 2013

Here’s a sneak peek at some encoder wheels we are developing for our micro metal gearmotors:

Closed Monday, September 2

Posted by Paul on 1 September 2013


We will be closed on Monday, September 2 in observance of Labor Day. Orders placed after 2 PM Pacific time on Friday, August 30 will be shipped on Tuesday, September 3.

New product: SparkFun Inventor's Kit - V3 (with RedBoard)

Posted by Paul on 30 August 2013
Tags: new products
New product: SparkFun Inventor's Kit - V3 (with RedBoard)

The SparkFun Inventor’s Kit has everything you need to construct a variety of circuits that will teach you how to use an Arduino-compatible RedBoard to read sensors, display information on an LCD, drive motors, and more. No previous programming or electronics experience is necessary, which makes this a great way for beginners to get started with embedded systems. The V3 version includes a RedBoard and detailed instructions for building 15 educational circuits with the kit components.

This replaces the older SparkFun Inventor’s Kit for Arduino with Retail Case.

For more information about the SparkFun Inventor’s Kit, see the product page.

ServoScribe Setup and Tutorial

Posted by Paul on 30 August 2013

In this video, Brian Patton demonstrates how to program an animatronic robot using a Maestro Servo Controller. He covers basic configuration using the Maestro Control Center and shows how to sync voice with servo motion using software from his company Robodyssey.

Featured link: http://www.youtube.com/watch?v=Yop9Zk2HJMU

Free Elektor magazine September 2013

Posted by Paul on 30 August 2013
Tags: new products
Free Elektor magazine September 2013

Get a FREE copy of Elektor magazine’s September issue with your order while supplies last. This offer is only available for orders shipped to USA or Canada. To get your free issue, enter the coupon code ELEKTOR0913 into your shopping cart. The magazine will add 6 ounces to the package weight when calculating your shipping options.

For other issues and more information, see our Free Elektor Magazine Offers page.

Video tutorial: Arduino wiring basics

Posted by Derrill on 29 August 2013

Just getting started with electronics? Take a look at this video to get some tips on keeping your wiring neat and clean using our pre-crimped wires and crimp connector housings.

Featured link: http://www.youtube.com/watch?v=vEHlwq3CHk4

Video tutorial: working with custom cables and connectors

Posted by Derrill on 29 August 2013

In this video, Derek Molloy shows you how to make custom cables using our pre-crimped wires and crimp connector housings and does a great job of showing how to use our crimp tool properly.

Featured link: http://www.youtube.com/watch?v=GkbOJSvhCgU