Pololu

Enclosed battery holder for three AA cells. This holder features a lid that slides over the batteries and snaps into place to fully enclose the...

Improved Alternative Available! We recommend our newer 400-point breadboard with mounting holes over this product. This 3.2" x 2.1" solderless b...

Battery holder for six AA batteries.

Battery holder for eight AA cells arranged as two back-to-back four-cell holders.

Our Black Edition A4988 stepper motor driver carrier is a higher-performance drop-in replacement for the original A4988 stepper motor driver car...

OverviewThese LED 10-packs are an easy way to add colorful and complex lighting effects to a project. Each RGB LED contains an integrated WS2811 dr...

These 0.1 μF 100 V ceramic capacitors have many uses, including noise suppression on motors.

This connector adapts a 5.5 × 2.1 mm DC barrel jack to a pair of screw terminals spaced approximately 5 mm (0.2″) apart. The terminals are labe...

This compact breakout board for TI’s DRV8874 motor driver offers a wide operating voltage range of 4.5 V to 37  and can deliver a continuous 2.1 A ...

These female pins can be crimped on 22-28AWG wires and snapped into our crimp connector housings to create custom cables that are compatible wit...

This carrier for ST’s LPS331AP digital barometer measures pressures from 260 mbar to 1260 mbar (26 kPa to 126 kPa) with absolute pressure accuracy ...

This #4-40, pan-head screw is 1/2″ (0.5″) long. It is made from steel, is zinc-plated, and comes in packs of 25.

The Pololu Pushbutton Power Switches are sophisticated power control alternatives to bulky mechanical switches. The main function is pushbutton-bas...

This miniature single-pole, double-throw (SPDT) momentary switch can be used as a general-purpose micro switch or as a small tactile bump sensor fo...

The Motoron M2H family of dual high-power motor controller add-on boards makes it easy to control up two bidirectional, brushed DC motors with a co...

The Motoron M3H256 Triple Motor Controller makes it easy to control DC motors from a Raspberry Pi (Model B+ or newer) through an I²C interface. Eac...

The Motoron M3S256 Triple Motor Controller Shield for Arduino makes it easy to control DC motors from an Arduino or Arduino-compatible board throug...

This ball caster is an improved version of our original Pololu Ball Caster with 1″ Plastic Ball; we recommend this new version over the older versi...

This light ball caster uses a 3/4″ diameter plastic ball. The height of the assembled kit ranges from 0.9″ to 1.2″, depending on the combination of...

The Pololu basic 2-channel relay carrier modules allow simple, independent control of two single-pole, double-throw (SPDT) switches from low-voltag...

This carrier board is designed to work with any of the MQ-series gas sensors, simplifying the interface from 6 to 3 pins—ground, power and analog v...

The G2 family of dual high-power motor driver shields features pairs of discrete MOSFET H-bridges designed to drive two large brushed DC motors. Th...

The board matches the Raspberry Pi HAT (Hardware Attached on Top) mechanical specification, although it does not conform to the full HAT specificat...

 | 5mm Pololu universal aluminum mounting hub on a stepper motor with a 5mm-diameter output shaft.These universal mounting hubs are designed to wo...