This array of IR LED/phototransistor pairs is great for precisely identifying changes in contrast/reflectance (like line-detection). It operates from 2.9 V to 5.5 V and offers dimmable brightness control independent of the supply...

This hybrid bipolar stepping motor has a 1.8° step angle (200 steps/revolution). Each phase draws 280 mA at 7.4 V, allowing for a holding torque of 650 g-cm (9 oz-in). The motor has four color-coded wires terminated with bare leads:...

This small synchronous switching step-down (or buck) regulator takes an input voltage of up to 38 V and efficiently reduces it to 5 V. The board measures only 0.7″ × 0.8″, but it allows a typical continuous output current of up to 5 A ....

The QTR-3RC reflectance sensor array requires digital I/O lines to take readings. The similar QTR-3A reflectance sensor array is available with analog outputs. Functional Description The QTR-3RC reflectance sensor array is intended as a...

The Pololu step-up/step-down voltage regulator S7V8A is a switching regulator(also called a switched-mode power supply (SMPS) or DC-to-DC converter) that uses a buck-boost topology. It takes an input voltage from 2.7 V to 11.8 V and...

These single-pin housings work with our wires with pre-crimped terminals and our crimp pins to let you quickly make custom cables that mate with various 0.1"-spaced connectors, including male or female headers and solderless breadboards....

This ball caster kit includes a black ABS housing, a 1/2" diameter plastic ball, two spacers (1/16" and 1/8" thick), and two #2 screw sets. The total height of the ball caster, 0.53", can be increased to about 0.7" using the included...

The Pololu USB AVR Programmer v2 is a compact, low-cost in-system programmer (ISP) for Atmel’s AVR microcontrollers. The programmer provides an interface for transferring a compiled AVR program from your computer to the target AVR’s...

This array of IR LED/phototransistor pairs is great for precisely identifying changes in reflectance (like line detection). It operates from 2.9 V to 5.5 V and offers dimmable brightness control independent of the supply voltage. In...

These housings work with our wires with pre-crimped terminals and our crimp pins to let you quickly make custom cables that mate with various 0.1"-spaced connectors, including male and female headers and solderless breadboards . Just...

These housings work with our wires with pre-crimped terminals and our crimp pins to let you quickly make custom cables that mate with various 0.1"-spaced connectors, including male and female headers and solderless breadboards . Just...

Overview The 3pi robot is designed to excel in line-following and maze-solving competitions. It has a small size (9.5 cm/3.7" diameter, 83 g/2.9 oz without batteries) and takes just four AAA cells (not included), while a unique power...