Our Black Friday / Cyber Monday sale is back! Visit the sale page to see all the available deals and add the necessary coupons to your cart, including special discounts on the new Zumo 32U4 OLED robots we released earlier today. The sale runs through Monday, November 29, and most of the sale coupons can be used on backorders if we happen to run out of stock, but you should still get your orders as soon as possible since production of many items is limited by the global parts shortages, and lead times to make more can be long.

Please note that during the sale, our order fulfillment times might be longer than usual, but we will do our best to get your order shipped as fast as we can. Additionally, we are closed Thursday, November 25 for Thanksgiving. Happy Thanksgiving!

Our Polo-BOO! Halloween Sale is back! Get 10% off active Pololu-brand products using coupon code PoloBOO2021 (limit 10 per item) from now until Friday, October 22. See the sale page for restrictions and links to suggested products and projects to make your Halloween spookier than ever!

SpringRC SM-S4303R Continuous Rotation Servo Pair.

We are now offering a two-pack of Surplus SpringRC SM-S4303R Continuous Rotation Servos. These servos are functionally identical to our stock SM-S4303R servos except for the direction of rotation, which is reversed. We are selling them in pairs to help differentiate them. See the product page for more details and specs.

Related products

	Surplus SpringRC SM-S4303R Continuous Rotation Servo Pair (Two Servos)
	SpringRC SM-S4303R Continuous Rotation Servo

In case you missed it, the 3pi+ now comes with a graphical OLED display! Accordingly, we have released an updated version of the 3pi+ assembly video. This video walks you through the steps found in the assembly section of the 3pi+ 32U4 User’s Guide. While our user’s guides aim to be as thorough as possible, some things are a lot easier to understand when you actually see someone doing it (like soldering the leads to the motor tabs!), so we hope you find this video a useful addition to our 3pi+ documentation.

Is there something you would like to see in a future 3pi+ video? Let us know in the comments below!

We are having a Labor Day sale starting now through Tuesday, September 7! Check out the sale page for more information. Please note that we will be closed Monday, so orders placed after 2 PM Pacific Time Friday, September 3 will be shipped on Tuesday, September 7.

We are having an Independence Day sale starting now through Monday, July 5! Check out the sale page for more information. Please note that we will be closed Monday, so orders placed after 2 PM Pacific Time Friday, July 2 will be shipped on Tuesday, July 6.

We are excited to announce the addition of new GF23-series high-speed linear actuators to our already extensive linear actuator selection. This brand new Glideforce series from Concentric International is specifically designed for high-speed, light-duty applications, offering almost twice the speed of our previously fastest options while still supporting almost the same dynamic loads. This video demonstrates the speeds of the four types of light-duty actuators we carry:

They are available in 2″, 4″, 6″, 8″, 10″, and 12″ lengths with or without a feedback potentiometer. The table below shows how these new units compare to our other light-duty options, which are slower but stronger:

This brings our total selection of light-duty actuators to 48 options, and our total overall selection of linear actuators to 82 options, all stocked and available to ship the day you order.

We are having a Memorial Day sale all weekend long with site-wide discounts of up to 25%! Check out the sale page for more information. Please note that we will be closed Monday, so orders placed after 2 PM Pacific Time Friday, May 28 will be shipped on Tuesday, June 1.

Content creator Curio Res recently released a tutorial and accompanying video explaining how to control a DC motor with an encoder. The video and post cover how to set up a motor with encoder, a controller, and a motor driver and how to read encoder signals. They also address common questions we get from customers who want to add closed-loop feedback to their projects such as how to implement a PID algorithm to control the position of the motor shaft based on the encoder readings. The content is well explained, and the diagrams and motion graphics make everything easy to follow and understand.

The tutorial uses one of our 37D Metal Gearmotors and our TB67H420FTG Motor Driver Carrier. The tutorial also uses an Arduino Uno, but one of our A-Star 32U4 Primes could be used instead.

If you like Curio Res’s content, be sure to subscribe to their YouTube channel so you don’t miss their latest videos. We look forward to seeing more great tutorials from Curio Res!

Related products

	19:1 Metal Gearmotor 37Dx68L mm 12V with 64 CPR Encoder (Helical Pinion)
	TB67H420FTG Dual/Single Motor Driver Carrier
	A-Star 32U4 Prime SV

We are having a sale to celebrate our 20th anniversary! Get 20% off 20 big categories of products! The sale runs until the end of April. Visit the sale page for details!