Posts tagged "pricing"

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LED strips: easy to use and now more affordable

Posted by Emily on 18 October 2013

We are giving you one more reason to take your holiday decorations this year to the next level: we have lowered the prices on our LED strips!

Our 30-LED, 1 m strip has dropped from $34.95 to $24.95.

Our 60-LED, 2 m strip has dropped from $69.95 to $47.95.

Our 150-LED, 5 m strip has dropped from $149.95 to $119.95.

And if you are thinking custom lighting seems a little complicated, you will be surprised how easy it is to get these strips up and running with an Arduino. I show you how in this video where I am using the examples included in our Arduino library for addressable RGB LED strips to get started.

QTR reflectance sensors just got more affordable

Posted by Ben on 23 August 2013
Tags: pricing

I am happy to announce another price drop. This time, it’s for several of our QTR reflectance sensors!

QTR-8A and QTR-8RC reflectance sensor arrays are now $9.95 (down from $14.95) with quantity price breaks starting at just five units. These modules feature eight IR LED/phototransistor pairs spaced 0.375″ apart, and an integrated MOSFET allows the LEDs to be turned off for additional sensing or power-savings options. These boards can optionally be broken apart into a six-sensor array and a two-sensor array.

QTR-1A and QTR-1RC sensors are now available in packs of two for $4.25 (and for even bigger savings, we’ve dropped the individually packaged QTR-1s from $2.49 to a clearance price of $1.95).

More about QTR sensors

These sensors and the rest of the modules in the QTR family combine infrared LED emitters with phototransistors that detect the amount of reflected IR. This makes them great for applications like edge detection and line following. Each type of QTR sensor is available in two versions: “A” units indicate the reflectance with an analog voltage, and “RC” units have digital I/O-compatible outputs that let you measure the reflectance by timing the discharge of a capacitor.

And don’t forget the newer members of our QTR family, which were priced from the outset in line with our efforts to offer better quality products at lower prices:

QTR-3A and QTR-3RC reflectance sensor arrays make a great minimal sensing solution for a line-following robot. They use smaller sensing elements than the QTR-1 and QTR-8 versions, so they can fit three IR LED/phototransistor pairs onto a compact 1.25″ × 0.3″ board.

QTR-L-1A and QTR-L-1RC sensors use a discrete right-angle infrared LED and a right-angle phototransistor, each mounted on a different side of the board. This results in a very small sensor that has a low profile along the plane of detection.

The Zumo reflectance sensor array incorporates six IR LED/phototransistor pairs onto a 2.6″ × 0.6″ board, with the distance between the sensors increasing as they get farther from the center of the array. This module was designed to work directly with the Zumo shield on our Zumo robot, but it can also be used as a general-purpose QTR sensor array.

QTR sensor size comparison. Clockwise from top left: QTR-3RC, QTR-1RC, QTR-L-1RC, QTR-8RC.

ARM mbed NXP LPC1768 price reduced by $10

Posted by Ben on 16 August 2013
Tags: pricing
ARM mbed NXP LPC1768 price reduced by $10

You can now buy the ARM mbed NXP LPC1768 Development Board for just $49, a reduction of $10. We also lowered the price of the m3pi Robot + mbed NXP LPC1768 Development Board Combo by $10, to $189.95.

From the product page:

The mbed NXP LPC1768 is an easy-to-use MCU development board designed for rapid prototyping. At its heart is a powerful 32-bit ARM Cortex-M3 processor running at 96 MHz with 512 KB flash and 32 KB RAM, which makes it far more capable than popular 8-bit prototyping alternatives. A comprehensive firmware library and plenty of sample code help you get your program up and running quickly, and a free online IDE and C++ compiler means that no software installation is required. Downloading programs is as simple as using a USB flash drive (no external programmer is necessary).


ARM mbed NXP LPC1768 development board with included USB cable and documentation.
Pololu m3pi robot controlled by an ARM mbed development board.

Dual motor drivers for less than $5

Posted by Emily on 7 August 2013
Tags: pricing

As part of our continuing efforts to make better quality products at lower prices, we have dropped the prices on some of our smallest dual motor driver carriers and made the first quantity price breaks at just five units for an even better deal! We hope this will make them more compelling alternatives to old motor drivers like the L293D or SN754410.

Our DRV8835 carrier has dropped from $5.95 to $4.49.

Our DRV8833 carrier has dropped from $6.95 to $4.95.

And finally, our TB6612FNG carrier has dropped from $8.45 to $4.95. This especially steep price reduction is made possible in part by upgrading the TB6612FNG carrier to use a new reverse protection circuit and all ceramic capacitors (which also allow for a lower profile). The new version of the board is pictured to the left, but we are still transitioning from the old version, so you might receive either one until we complete the transition. For pictures of the original board and details on the status of the transition, please visit the product page.

Ball casters

Posted by Emily on 25 June 2013
Tags: pricing
Ball casters

We’ve lowered the prices on all of our ball casters! Prices have dropped by $1 to $2 across the whole Pololu ball caster line and start as low as $1.99.