Posts by Ben

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Free Circuit Cellar magazine April 2014

Posted by Ben on 17 April 2014
Tags: new products
Free Circuit Cellar magazine April 2014

Get a FREE copy of Circuit Cellar magazine’s April issue with your order while supplies last. To get your free issue, enter the coupon code CIRCUIT0414 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 Circuit Cellar Magazine Offers page. All issues are now available for shipping worldwide!

Free Elektor magazine April 2014

Posted by Ben on 16 April 2014
Tags: new products
Free Elektor magazine April 2014

Get a FREE copy of Elektor magazine’s April issue with your order while supplies last. To get your free issue, enter the coupon code ELEKTOR0414 into your shopping cart. The magazine will add 7 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!

New products: MinIMU-9 and AltIMU-10 v3

Posted by Ben on 17 March 2014
Tags: new products
New products: MinIMU-9 and AltIMU-10 v3

We are happy to introduce new v3 versions of our MinIMU-9 and AltIMU-10 inertial measurement units (IMUs). These sensor modules are the same compact sizes as their predecessors and have same pin-out, but they are based on ST’s newer and better L3GD20H 3-axis gyro and LSM303D 3-axis accelerometer/magnetometer. The nine independent rotation, acceleration, and magnetic measurements from these sensors provide all of the information required make an attitude and heading reference system (AHRS). In addition to this, the AltIMU-10 v3 incorporates an LPS331AP digital barometer that can be used to measure pressure and altitude.

The new revisions offer a wider magnetic sensing range and a more accurate and stable gyro, all with lower power consumption, and they include an extra pin for changing the I²C slave addresses so that two boards can be used on the same I²C bus. They should generally be usable as drop-in replacements for our previous MinIMU-9 v2 and AltIMU-10 modules—which we have put on clearance—though changes to register locations might require updates to software that is not based on our Arduino libraries.

We also have individual carrier boards available for the L3GD20H gyro, LSM303D accelerometer/magnetometer, and LPS331AP barometer if your application doesn’t require quite so much data or if you want to build your own AHRS unit.

Free Elektor magazine March 2014

Posted by Ben on 12 March 2014
Tags: new products
Free Elektor magazine March 2014

Get a FREE copy of Elektor magazine’s March issue with your order while supplies last. To get your free issue, enter the coupon code ELEKTOR0314 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!

New short-range analog Sharp distance sensor

Posted by Ben on 3 January 2014
Tags: new products
New short-range analog Sharp distance sensor

After having been out of the short-range Sharp GP2D120XJ00F analog distance sensor for a while, we are happy to have a higher-performance replacement: the Sharp GP2Y0A41SK0F analog distance sensor. The newer GP2Y0A41SK0F has the same physical dimensions, pinout, and 4 cm to 30 cm operating range as the original GP2D120XJ00F, but it offers a much higher update rate and lower average current draw. This sensor is an inexpensive and easy way to add close-proximity rangefinding or obstacle detection to your electronics or robotics project.

For longer-range analog rangefinders and shorter-range digital distance sensors, check out our full selection of optical rangefinders.

Powerful new S18v20x step-up/step-down regulators

Posted by Ben on 31 December 2013
Tags: new products
Powerful new S18v20x step-up/step-down regulators

Earlier this month we introduced our new line of powerful U3V50x boost regulators; now we have a similarly powerful family of S18V20x step-up/step-down voltage regulators to go along with them! We are especially excited about these regulators, which have a wide 3 V to 30 V input voltage range, typical efficiency of 80% to 90%, and maximum output current of approximately 2 A when the input voltage is near the output voltage.

Step-up/step-down regulators like the S18V20x work with input voltages that are less than, equal to, or greater than the output voltage. This makes them especially well suited for battery-powered applications where the nominal battery voltage is close to the desired output voltage, and the actual battery voltage transitions from above the output to below as the battery discharges. For example, these regulators make it possible to get a steady 12V from a 12V battery or a steady 6V from five NiMH cells, which can be over 7 V when fully charged and below 5 V when drained. These regulators are also great for applications where having a very wide operating voltage range is desirable, such as projects where you want a lot of flexibility in power supply choice or in systems powered by alternative energy sources like solar or wind, where the output voltage can vary greatly.

The S18V20x family includes versions with fixed 5 V, 6 V, 9 V, or 12 V outputs and versions with adjustable 4 V to 12 V or 9 V to 30 V outputs. All of them feature built-in reverse-voltage protection, over-current protection, thermal shutdown, and an under-voltage lockout that keeps the modules from behaving erratically when the input voltage gets too low.

The compact boards (0.825″ × 1.7″) have four mounting holes for #2 or M2 screws and can be assembled with the included 5mm-pitch terminal blocks or 0.1″ header pins.

For other regulator options, you can take a look at our full selection of step-up/step-down regulators, step-up voltage regulators, and step-down voltage regulators.

Powerful new U3V50x boost regulators

Posted by Ben on 11 December 2013
Tags: new products
Powerful new U3V50x boost regulators

Ever since the release of our original adjustable boost regulators, customers have been requesting higher-power versions. Doing power systems right is not easy, and minute differences in component choices and layout can make a huge difference in performance: we went through three different failed designs before arriving at our new U3V50x family of step-up voltage regulators, which we think offers a great balance of size, performance, and price.

These new boost regulators can generate up to 30 V from input voltages as low as 2.9 V while allowing for input currents as high as 5 A and offering typical efficiencies of 80% to 95%, making these our most powerful boost regulators. The regulators include built-in reverse-voltage protection, over-current protection, thermal shutdown, and an under-voltage lockout that keeps the modules from behaving erratically when the input voltage gets too low. The U3V50x family includes versions with fixed 5 V, 6 V, 9 V, 12 V, or 24 V outputs and versions with adjustable 4 V to 12 V or 9 V to 30 V outputs.

The compact boards (0.6″ × 1.9″) have two mounting holes and can be assembled with the included 5mm-pitch terminal blocks or 0.1″ header pins.

For other regulator options, you can take a look at our full selection of step-up voltage regulators, step-down voltage regulators, and step-up/step-down regulators.

New product: Ultra-high-torque giant servo HD-1235MG

Posted by Ben on 2 December 2013
Tags: new products
New product: Ultra-high-torque giant servo HD-1235MG

As you might have noticed from some of our recent blog announcements, we are steadily working on expanding our selection of hobby servos, and the latest example is Power HD’s new giant-scale (also called 1/4-scale) 1235MG servo. When compared to the popular, standard-size high-torque 1501MG servo, it is easy to see why this is called a “giant” servo:

What you get for the increased size is increased power — a huge 560 oz-in (40 kg-cm) of torque at 7.4 V or 490 oz-in (35 kg-cm) at 6 V. Previously, if you needed more torque than our high-performance standard-size servos could deliver, our only options were the Torxis monster servos; now, the 1235MG servo helps fill that power gap.

For more information, see the 1235MG servo product page.

We have included this servo in our Black Friday sale (along with the rest of our Power HD servos) for 25% off, but the sale ends tonight at midnight (PST), so you need to hurry if you want to get it at the sale price!

Black Friday deals abound!

Posted by Ben on 29 November 2013


Pololu shipping department on Black Friday (November 29) 2013.

Our Black Friday sale is in full swing and it is a little crazy around here. If not for the lack of snow and elves, one might be excused for mistaking our manufacturing and shipping departments for Santa’s high-tech workshop, with motor drivers fresh from the oven and that new-Zumo smell wafting through the air. Thanks to their tireless efforts, our stock levels are so far holding strong, and orders are making it out at a record pace. If you have already placed an order, thank you! If you are still trying to decide if you want to take advantage of our amazing deals, don’t wait too long—the sale ends Monday night.

Pololu Robotics and Electronics Black Friday Sale 2013


In related Black Friday news, Pololu distributor Banana Robotics is having a Black Friday – Cyber Monday sale with some great deals!

Banana Robotics


And fellow purveyor of cool electronics stuff, Adafruit, is having their biggest sale ever today, with free stuff plus 10% off:

Adafruit Black Friday Sale

Three new high-performance Power HD servos

Posted by Ben on 27 November 2013
Tags: new products

We are now carrying three high-performance servos from Power HD that offer an excellent combination of strength and speed for their size.

Power HD Low-Profile Digital Servo 1207TG – This servo is very fast and strong, despite being much shorter than a standard-size servo, making it great for applications with tight space constraints.


Power HD Digital Servo 8312TG – Much stronger than the 1207TG while nearly as fast, this servo is great for applications that require both high speed and high torque. All of the gears are made of titanium-shielded aluminum.


Power HD High-Torque, High-Voltage Digital Servo 1218TH – With a whopping 290 oz*in (21 kg*cm) of torque, this is our strongest standard-size servo, and unlike most hobby servos, it has an operating voltage range of 6 V to 7.4 V. Like the 8312TG, this servo has gears made of titanium-shielded aluminum.

All three of these servos feature coreless motors, all-metal gears, and digital control electronics, and all of them support pulse frequencies up to 333 Hz. For our full selection of Power HD servos (which are on sale right now for Black Friday for 25% off!), see our servo category.