Sensors

Subcategories

Measure acceleration and track rotation with these accelerometers, gyroscopes, compasses/magnetometers, and combined inertial measurement units (IMUs) and orientation sensors.

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

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.

An assortment of unidirectional and bidirectional Hall effect-based current sensors. They offer a very low-resistance current path and electrical isolation between the current source and the measuring circuit. You can use these sensors to monitor your motor current, detect current spikes, or even to make inexpensive current probes for your oscilloscope.

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.

Sensors for measuring environmental properties/weather like barometric pressure, relative humidity, luminosity, and temperature.

Want to build your own breathalyzer? This variety of semiconductor gas sensors makes it possible to measure concentrations of gasses such as alcohol, methane, propane, butane, and carbon monoxide.

These quadrature encoders can be used to add speed and position feedback to our micro metal gearmotors with extended backshafts.


Products in category “Sensors”

Pololu item #: 2138
Price: $49.95
Quantity:

The Locosys LS20031 GPS receiver integrates a MediaTek MT3339 66-channel GPS chip with a ceramic antenna to create a complete GPS module that can track up to 66 GPS satellites at a time. The GPS module supports up to a 10Hz update rate, a built-in rechargeable battery for rapid satellite acquisition (external power is still required for normal operation), and more than 6 different NMEA ASCII sentences that are output to a TTL-level serial port.

Pololu item #: 2732
Price: $37.95
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The MyoWare Muscle Sensor from Advancer Technologies measures, filters, rectifies, and amplifies the electrical activity of a muscle and produces an analog output signal that can easily be read by a microcontroller, enabling novel, muscle-controlled interfaces for your projects. Note: This product requires electrodes; these are not included, but they are available separately in packs of six.

Pololu item #: 2733
Price: $4.95
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These electrodes are intended for use with the MyoWare Muscle Sensor from Advancer Technologies. This product is a pack of six electrodes.

This product has been discontinued.

This sensor has been replaced by the newer MyoWare Muscle Sensor (also from Advancer Technologies).

The Muscle Sensor v3 from Advancer Technologies measures, filters, rectifies, and amplifies the electrical activity of a muscle and produces an analog output signal that can easily be read by a microcontroller, enabling novel, muscle-controlled interfaces for your projects. This small board measures 1″ × 1″ and includes six electrodes and a 24″ sensor cable.

Pololu item #: 2471
Price: $1.75
Quantity:

The Vishay TSOP38438 is a general-purpose modulated IR receiver for IR-based remote-control projects. It features a wide operating voltage range of 2.5 V to 5.5 V; this particular unit is tuned for a 38 kHz carrier frequency.

Pololu item #: 837
Price: $2.50
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The Vishay TSOP34156 is a general-purpose modulated IR receiver for IR-based remote-control projects. It features a wide operating voltage range and allows for relatively high data rates; this particular unit is tuned for a 56 kHz carrier frequency. This is the IR receiver used in the Pololu IR Beacon.

Pololu item #: 702
Price: $49.95
Temporarily out of stock. See product page to backorder.

The Pololu IR beacon is a compact board that is used in pairs to allow robots to locate each other. Each board has infrared emitters that shine in all directions and four IR receivers for detecting the other beacon. The IR beacons have a range of about fifteen feet indoors. This item is for a pair of beacons in one package.

Pololu item #: 701
Price: $27.95
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The Pololu IR beacon is a compact board that is used in pairs to allow robots to locate each other. Each board has infrared emitters that shine in all directions and four IR receivers for detecting the other beacon. The IR beacons have a range of about fifteen feet indoors. This item is for a single unit.

Pololu item #: 704
Price: $14.95
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The IR beacon development board is just an assembled IR Beacon PCB with no IR sensors or firmware. This item is intended for advanced users who want to customize their IR beacon functionality by writing their own firmware. No documentation is shipped with this IR Beacon Development kit.

Pololu item #: 2731
Price: $9.95
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The passive infrared (PIR) motion sensor detects movement of infrared light sources with wavelengths ranging from 7 μm to 14 μm. Since people emit infrared radiation from 8 μm to 14 μm, this an excellent sensor for detecting human movement. Two infrared detector “pixels” allow the detector to filter out changes affecting the whole sensing area, like weather or light.

Pololu item #: 1608
Price: $19.95
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The Parallax ColorPAL combines an RGB LED, a light sensor, and a microcontroller to make a color sensor that can also be used as an ambient light detector and a color generator. Readings are reported via a 1-wire asynchronous serial interface.

Pololu item #: 1618
Price: $9.95
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Ready to add sound detection to your next project? This small breakout board from SparkFun couples a tiny microelectromechanical system (MEMS) microphone with a 67x gain external amplifying circuit, converting sound into analog voltage signals that can be measured by a microcontroller’s analog-to-digital converter (ADC). The unit comes fully assembled as shown and works from 1.5 to 3.3 V.

Pololu item #: 1620
Price: $7.95
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Ready to add sound detection to your next project? This compact breakout board from SparkFun couples a small electret microphone with a 100x opamp, converting sound into amplified analog voltages that can be measured by a microcontroller’s analog-to-digital converter (ADC). The unit comes fully assembled as shown and works from 2.7 to 5.5 V.

Pololu item #: 1403
Price: $0.95
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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 useful as a tactile bump sensor for your robot (e.g whiskers or antennae). The switch body dimension is 20.0 x 6.4 x 10.2 mm, and the lever arm is 50 mm long.

Pololu item #: 1402
Price: $0.75
Quantity:

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 switch body dimension is 20.0 x 6.4 x 10.2 mm, and the lever arm is 16.7 mm long.

Pololu item #: 1404
Price: $0.85
Quantity:

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 switch body dimension is 20.0 x 6.4 x 10.2 mm, and the 16.3mm lever arm is has a roller at the tip.

Pololu item #: 1405
Price: $0.75
Quantity:

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 switch body dimension is 20.0 x 6.4 x 10.2 mm, and the 15.6mm lever arm has a semicircular bump at the tip that simulates a roller.

Pololu item #: 1401
Price: $0.75
Quantity:

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 for your robot. The switch body dimension is 12.8 x 6.0 x 6.5 mm, and the lever arm is 13.5 mm long.

Pololu item #: 320
Price: $19.95
Quantity:

Learn about electronic motion detectors with this deluxe kit that includes a high-quality enclosure with a mounting bracket. The motion detector makes a loud, doorbell-like “ding-dong” sound when it detects motion. The kit is based on a pyroelectric infrared (PIR) sensor, which is a unique sensor that you can use to give your projects the ability to react to your presence.

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