Polo-BOO! Halloween Sale

Halloween is quickly approaching, but there is still plenty of time for you makers out there to build something that will impress or terrify your friends and neighbors, and we want to help! We are having a sale on servos, motors, programmable controllers, sensors, LEDs, power supplies, and more – products that might come in handy for building an amazing costume or interactive yard display. Just use the coupon code POLOBOO18 to get an unsettling 13% off the products and categories listed at the bottom of this page (limit 13 per item). Additionally, we are offering even bigger discounts on a few select products with the following coupon codes:

Maestro Servo Controllers

26% off with coupon code HW18C102
(limit 13 per item)

Tic Stepper Motor Controllers

24% off with coupon code HW18C212
(limit 13 per item)

A-Star Programmable Controllers

23% off with coupon code HW18C149
(limit 13 per item)

Jrk Motor Controllers with Feedback

21% off with coupon code HW18C95
(limit 13 per item)

Voltage Regulators

19% off with coupon code HW18C136
(limit 13 per item)

Time-of-Flight Distance Sensors

17% off with coupon code HW18C220
(limit 13 per item)

These coupons take precedence over the more general POLOBOO18 coupon. You can add all of the sale coupons to your cart automatically with the following link (unused coupons will be ignored at checkout):

    Add all coupons to cart…

Note: All discounts will appear in your cart. These sale coupons cannot be combined with other discounts or promotions.

If you are looking for some fun ideas of things to make this year, check out our sample Halloween projects.

Simple animatronic baby controlled by an A-Star 32U4 Mini SV.

Surprise candy bowl arm.

Motion tracking skull controlled by a Micro Maestro Servo Controller.

A creepy mask with eyes that move thanks to a Micro Maestro and some servos.

By the way, don’t forget about our custom laser cutting service, which can help you bring your frightening ideas to life!

Laser-cut and laser-engraved necklace with painted engraving.


The Pololu A-Star microcontroller boards are general-purpose programmable modules based on Atmel AVR microcontrollers. A USB interface and preloaded Arduino-compatible bootloader on each A* makes it easy to get started programming them.

Pololu’s Maestro servo controllers offer industry-leading resolution and stability for precise, jitter-free control of your RC servos. Features include a native USB interface, separate speed and acceleration settings for each servo, internal scripting control, and channels configurable as general purpose I/O.

Radio control hobby servos in a variety of sizes. With integrated motor-control circuitry and position feedback, servos are an easy way to add controlled motion to your robotics or electronics project. Whatever your application, we probably have a servo for it!

The Jrk motor controllers are highly configurable brushed DC motor controllers that can be used as an open-loop speed control or for closed-loop speed or position control. They support a variety of interface modes, including USB, TTL serial, analog voltage, and hobby radio control (RC).

The Pololu Simple Motor Controllers (SMCs) make basic control of brushed DC motors easy. Our most versatile and configurable motor controllers yet span a wide range of power levels and offer four interface modes: USB, TTL serial, analog voltage, and hobby radio control (RC).

Single and dual motor driver carriers get your brushed DC motor projects up and running quickly using modern H-bridges with high-performance MOSFETs that deliver hundreds of watts in a compact package. Give these boards a PWM signal and make your motors go!

This wide selection of brushed DC metal gearmotors lets you choose the optimal torque and speed for your particular application. These motors are available in a variety of sizes and gear ratios.

A variety of low-current brushed DC motors with plastic gearboxes that offer power and speed comparable to a continuous-rotation RC servo at a fraction of the price.

Linear actuators convert the rotation of a DC or stepper motor into linear motion, allowing you to push or pull objects. Versions with feedback or integrated stepper motors allow for precise position control.

The Tic offers simple control of bipolar stepper motors directly from a variety of interfaces, including USB, TTL serial, I²C, hobby radio control (RC), analog voltage (potentiometer), and quadrature encoder signals.

With features like adjustable current limiting and selectable microstep resolutions, these drivers make it easy to get a stepper motor running with simple step and direction control interfaces.

Stepper motors allow for precise position control without the need for a feedback system and are capable of continuous rotation, unlike standard hobby servos.

These adapters let you connect an assortment of wheels and other mechanisms to a variety of gearmotor output shafts.

These sensors use pairs of infrared LEDs and phototransistors to measure how much of the emitted IR light is being reflected from a nearby surface. They are great for edge detection and line following.

This assortment of optical and sonar sensors can be used to detect the presence of objects or measure the distances to them.

Mount Sharp distance sensors securely to your project with this selection of brackets.

These FSRs and FSLPs from Interlink Electronics can sense the magnitude, and in some cases the location, of an applied force, enabling unique touch interfaces and tactile sensors.

Discrete LEDs and RGB LED modules for use in indicators and displays.

Ensure your project gets the voltage it needs with these voltage regulator boards and wall-adapter power supplies.

Servo extension cables, USB cables, jumper wire kits, and more!

Prototype your electronic circuits for cheap with our affordable, reusable breadboards.

An assortment of switches, buttons, and relays that can serve as user-interface elements, tactile sensors, power switches, and more.

New Products

QTRXL-HD-01A Reflectance Sensor: 1-Channel, 5mm Wide, Analog Output, Long Range
QTRX-MD-03RC Reflectance Sensor Array: 3-Channel, 8mm Pitch, RC Output, Low Current
QTRX-MD-06RC Reflectance Sensor Array: 6-Channel, 8mm Pitch, RC Output, Low Current
QTRX-HD-09A Reflectance Sensor Array: 9-Channel, 4mm Pitch, Analog Output, Low Current
Free Circuit Cellar magazine September 2018
Aluminum Standoff: 1-1/2" Length, 2-56 Thread, M-F (4-Pack)
QTR-MD-06A Reflectance Sensor Array: 6-Channel, 8mm Pitch, Analog Output
QTR-MD-04A Reflectance Sensor Array: 4-Channel, 8mm Pitch, Analog Output
QTRXL-HD-01RC Reflectance Sensor: 1-Channel, 5mm Wide, RC Output, Long Range
Robot Arm Kit for Romi
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