pololu

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 #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 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...

These universal mounting hubs are designed to work with most 8 mm diameter shafts, including round shafts and “D” shafts. Each of the two includ...

The QTR-1A reflectance sensor carries a single infrared LED and phototransistor pair in an inexpensive, tiny 0.5" x 0.3" module that can be mounted...

These terminal blocks have terminals that hold and release wires through the simple adjustment of a screw, allowing you to easily make temporary co...

This small digital distance sensor detects objects between 0.5 cm and 5 cm (0.2″ and 2″) away. With its quick response time, small size, low curren...

This small digital distance sensor detects objects between 2 cm and 10 cm (0.8″ and 4″) away. With its quick response time, small size, and low cur...

This single-pole, double-throw (SPDT) momentary switch can be used as a general-purpose micro switch or tactile bump sensor for your robot. The...

This single-pole, double-throw (SPDT) momentary switch can be used as a general-purpose micro switch, but the long lever arm makes it especially us...

The Tamiya 70171 3mm Threaded Shaft Set includes ball joints so you can make control rods with three-dimensional movement. The two threaded shafts ...