Pololu Blog (Page 69)

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…

Our RC Switch overhaul is complete

Posted by Ben on 6 November 2013
Tags: new products

Pololu RC Switch with Digital Output.

Pololu RC Switch with Small Low-Side MOSFET.

With the release of the new RC Switch with Digital Output and the new RC Switch with Small Low-Side MOSFET, our RC switch family overhaul is now complete. These compact modules convert hobby radio control pulses to digital on/off signals for use in RC switch and simple RC adapter applications. These products replace item #752 and item #1210, which have been put on clearance and will be discontinued when the remaining stock is gone.

For more information about these products and the rest of our RC switch family, see our RC Switch category.

Related posts:

Not your average alarm clock!

Leonid Karchevsky, of Xronos Clock, used our Custom Laser Cutting Service to create an enclosure for his Arduino Based Talking Alarm Clock, the Xronos Clock. The Xronos Clock is open-source, hackable, customizable, and is available in both assembled and kit form.

New product: 4-Channel RC Servo Multiplexer

Posted by Ben on 4 November 2013
Tags: new products

The overhaul of our RC switch and RC multiplexer products continues with the new Pololu 4-Channel RC Servo Multiplexer. This compact four-channel multiplexer of hobby radio control pulses allows for easy switching between two independent RC signal sources. An auxiliary channel selects whether master or slave inputs show up on the four output channels. This makes it ideal for applications in which you have two possible control sources and want to be able to switch between them on the fly.

This product replaces items #721 and #722 and includes valuable new features such as user-configurable input direction and threshold.

For more information about the new Pololu 4-Channel RC Servo Multiplexer, see the product page.

Related posts:

Happy Halloween from Pololu

Posted by Emily on 31 October 2013


Halloween’s always a good time at Pololu. Here’s a shot of all the people here that dressed up for the holiday:

As for some of us that post on the Pololu blog regularly, Jon, Jeremy, Grant, and Brandon, who like to refer to themselves as Pololu’s “B-Team”, dressed up as…

Kevin did a twist on Iron Man and became “Ironing Man”. His costume uses some of our Wixels to control the servo used in the mask from a button in the iron.

I (Emily) used some of our LED strips to make a Luxor Hotel costume. (For those of you that don’t know, Pololu is located in Las Vegas, NV, not too far from this building.) You can see a video of this costume in action here.

If you used any Pololu products in your Halloween costume or decorations, we’d love to hear about it! Please post about it on our forum and maybe we will feature it here on the blog. Have a Happy Halloween!

Wireless Servo Widget

Posted by David on 28 October 2013

Pololu forum user Martan recently released a project called Wireless Servo Widget. The project website says:

Wireless Servo Widgets allow you to control up to 64 slaves, with each slave controlling up to six R/C type servos. In addition, each slave can return 3 analog input values to your Raspberry Pi. Slaves have a range of about 50 feet from the master. Use them for home automation, robotics, model train controls, or whatever you want!

The Wireless Servo Widget is based on our Wixel Programmable USB Wireless Module. Martan wrote apps for the Wixel that use the packet addressing feature of the CC2511F32 chip to implement a round-robin protocol. He also made a Slave Widget Breakout Board which makes it easy to plug servos into the slave Wixels. All of this and more can be found on the Wireless Servo Widget website.

Remote-controlled Zumo Robot

Posted by Jamee on 28 October 2013

Forum user robo_proyect uses an IR sensor for RC control and an ultrasonic sensor for obstacle avoidance on his Zumo robot.

You can see more about robo_proyect’s robot in his forum post.

New Product: Pololu 2013 T-Shirts

Posted by Jon on 25 October 2013
Tags: new products

Do you like our Zumo Robot?
Does royal blue look good on you?
Do you like T-shirts that have robots on them?
Does the phrase “Push.” motivate you?

If you said “yes” to any of these questions, you might just be interested in our 2013 Pololu T-Shirt!

These royal blue T-shirts feature our Zumo robot and are available in small, medium, large, and extra large. They are made from 100% cotton, pre-shrunk.

Some of our favorite examples of when/where to wear this T-shirt:

  • In the delivery room!
  • During a mini-sumo competition!
  • During an actual sumo competition!
  • Inside your local hackerspace!
  • At your local robotics club meetings!

You can find these and last year’s shirts in our shirts category.

Katy Perry peppermint dress with Pololu parts

Posted by Grant on 23 October 2013

Halloween is just around the corner, and people are looking to make fun costumes. I recently took a couple of calls from customers who were looking to make Katy Perry-inspired costume dresses with spinning peppermints, following the instructions found on this RPF forum thread. Parts from Pololu used to make the dress included an enclosed 3-AA battery holder with a switch and a Solarbotics GM3 224:1 Gear Motor. However, we suggest substituting our 200:1 Plastic Gearmotor, which has similar performance but no back shaft that needs to be removed.

If you have a cool costume that uses our products, please feel free to share them in the “Share your projects” section of our Forum.

Featured link: http://www.therpf.com/f24/katy-perry-peppermint-dress-completed-i-think-189238/

Free Elektor magazine November 2013

Posted by Emily on 23 October 2013
Tags: new products

Get a FREE copy of Elektor magazine’s November issue with your order while supplies last. To get your free issue, enter the coupon code ELEKTOR1113 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. All issues are now available for shipping worldwide!

Flipbot: A Wixel-powered RC robot

Posted by Ben on 23 October 2013

Geoff from Tabletop Robotics wrote a tutorial on how to build a Flipbot, a basic differential-drive robot that can keep on going even when flipped upside-down. A Wixel serves as the brains of the robot, and a second Wixel in the remote allows the Flipbot to be wirelessly controlled. In addition to the Wixels, the Flipbot uses a number of Pololu products, including:

The accelerometer is used to determine when the robot is upside-down. Geoff’s tutorial has a full parts list and a diagram of how everything is connected; the complete source code is also available.

New Products

15V, 2.7A Step-Down Voltage Regulator D30V30F15
ACS72981LLRATR-100U5 Current Sensor Compact Carrier 0A to 100A, 5V
ACS72981LLRATR-050U3 Current Sensor Compact Carrier 0A to 50A, 3.3V
5V Step-Up/Step-Down Voltage Regulator S8V9F5
ACS72981KLRATR-150B5 Current Sensor Large Carrier -150A to +150A, 5V
75:1 Micro Metal Gearmotor HP 6V with 12 CPR Encoder, Side Connector
4.2-15V, 3.3A Fine-Adjust Step-Down Voltage Regulator D30V33MAS
ACS37220LEZATR-100B5 Current Sensor Compact Carrier -100A to +100A, 5V
ACS71240KEXBLT-030B3 Current Sensor Carrier -30A to +30A, 3.3V
VL53L7CX Time-of-Flight 8×8-Zone Wide FOV Distance Sensor Carrier with Voltage Regulator, 350cm Max
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