New Products

Pololu item #: 3875
Brand: Unspecified
Temporarily out of stock. See product page to backorder.
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Get a FREE copy of Circuit Cellar magazine’s October issue with your order while supplies last. To get your free issue, enter the coupon code CIRCUIT1018 into your shopping cart. The magazine will add 6 ounces to the package weight when calculating your shipping options.

Pololu item #: 3435
Brand: Pololu
Status: Active and Preferred 
Free add-on shipping in USA 
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This plastic bracket provides a convenient way to mount standard-size servos with a side flat to a surface.

Pololu item #: 4446
Brand: Pololu
Status: Active and Preferred 
Free add-on shipping in USA 
Temporarily out of stock. See product page to backorder.
Out of stock.
Quantity:
pitch × sensors size
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LED board
8 mm × 6 45.0 × 20.0 analog 3.5 mA 14 mA 10 mm

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 general, the closer the object, the higher the contrast between light and dark readings, but high-reflectance objects are generally detectable out to around 40 mm. This version features high-performance, low-current QTRX sensors with lenses.

Pololu item #: 4346
Brand: Pololu
Status: Active and Preferred 
Free add-on shipping in USA 
Temporarily out of stock. See product page to backorder.
Out of stock.
Quantity:
pitch × sensors size
(mm)
output max current optimal
range
LED board
8 mm × 6 45.0 × 20.0 RC (digital) 3.5 mA 14 mA 10 mm

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 general, the closer the object, the higher the contrast between light and dark readings, but high-reflectance objects are generally detectable out to around 40 mm. This version features high-performance, low-current QTRX sensors with lenses.

Pololu item #: 4246
Brand: Pololu
Status: Active and Preferred 
Free add-on shipping in USA 
Temporarily out of stock. See product page to backorder.
Out of stock.
Quantity:
pitch × sensors size
(mm)
output max current optimal
range
LED board
8 mm × 6 45.0 × 20.0 analog 30 mA 93 mA 5 mm

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 general, the closer the object, the higher the contrast between light and dark readings, but high-reflectance objects are generally detectable out to around 40 mm. This version features the traditional-style QTR sensors without lenses.

Pololu item #: 4146
Brand: Pololu
Status: Active and Preferred 
Free add-on shipping in USA 
Temporarily out of stock. See product page to backorder.
Out of stock.
Quantity:
pitch × sensors size
(mm)
output max current optimal
range
LED board
8 mm × 6 45.0 × 20.0 RC (digital) 30 mA 93 mA 5 mm

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 general, the closer the object, the higher the contrast between light and dark readings, but high-reflectance objects are generally detectable out to around 40 mm. This version features the traditional-style QTR sensors without lenses.

Pololu item #: 4411
Brand: Pololu
Status: Active and Preferred 
Free add-on shipping in USA 
Temporarily out of stock. See product page to backorder.
Out of stock.
Quantity:
pitch × sensors size
(mm)
output max current optimal
range
LED board
4 mm × 11 45.0 × 20.0 analog 3.5 mA 26 mA 10 mm

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 general, the closer the object, the higher the contrast between light and dark readings, but high-reflectance objects are generally detectable out to around 40 mm. This version features high-performance, low-current QTRX sensors with lenses.

Pololu item #: 4311
Brand: Pololu
Status: Active and Preferred 
Free add-on shipping in USA 
Temporarily out of stock. See product page to backorder.
Out of stock.
Quantity:
pitch × sensors size
(mm)
output max current optimal
range
LED board
4 mm × 11 45.0 × 20.0 RC (digital) 3.5 mA 26 mA 10 mm

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 general, the closer the object, the higher the contrast between light and dark readings, but high-reflectance objects are generally detectable out to around 40 mm. This version features high-performance, low-current QTRX sensors with lenses.

Pololu item #: 4211
Brand: Pololu
Status: Active and Preferred 
Free add-on shipping in USA 
Temporarily out of stock. See product page to backorder.
Out of stock.
Quantity:
pitch × sensors size
(mm)
output max current optimal
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LED board
4 mm × 11 45.0 × 20.0 analog 30 mA 185 mA 5 mm

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 general, the closer the object, the higher the contrast between light and dark readings, but high-reflectance objects are generally detectable out to around 40 mm. This version features the traditional-style QTR sensors without lenses.

Pololu item #: 4111
Brand: Pololu
Status: Active and Preferred 
Free add-on shipping in USA 
Temporarily out of stock. See product page to backorder.
Out of stock.
Quantity:
pitch × sensors size
(mm)
output max current optimal
range
LED board
4 mm × 11 45.0 × 20.0 RC (digital) 30 mA 185 mA 5 mm

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 general, the closer the object, the higher the contrast between light and dark readings, but high-reflectance objects are generally detectable out to around 40 mm. This version features the traditional-style QTR sensors without lenses.

Pololu item #: 3560
Brand: Pololu
Status: Active and Preferred 
Temporarily out of stock. See product page to backorder.
Out of stock.
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This Romi Chassis accessory offers a convenient way to expand your Romi robot vertically by adding new tiers. The expansion plate has the same diameter as the base plate, but we made it only a half circle to give you more expansion options. For example, when used as part of the Romi robot arm kit, it supports the arm in the back while leaving the front half of the Romi open. For a full-sized expansion platform, just combine two expansion plates. A mixture of mounting holes and slots give you the flexibility to mount components in a variety of orientations almost anywhere on the plate.

This expansion plate for the Romi chassis is made from black ABS.

Pololu item #: 2867
Brand: Pololu
Status: Active and Preferred 
Free add-on shipping in USA 
Temporarily out of stock. See product page to backorder.
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This carrier for ST’s LPS25HB digital barometer measures pressures from 260 mbar to 1260 mbar (26 kPa to 126 kPa) with absolute accuracy down to ±0.2 mbar (0.02 kPa) and typical RMS noise of 0.01 mbar (1 Pa) in high-resolution mode. These pressures can easily be converted to altitudes. The board has a 3.3 V linear regulator and integrated level shifters that allow it to work over an input voltage range of 2.5 V to 5.5 V, and the 0.1″ pin spacing makes it easy to use with standard solderless breadboards and 0.1″ perfboards. The sensor offers I²C and SPI interfaces.

This product is a drop-in replacement for the original LPS25H pressure sensor carrier.

Pololu item #: 4406
Brand: Pololu
Status: Active and Preferred 
Free add-on shipping in USA 
Temporarily out of stock. See product page to backorder.
Out of stock.
Quantity:
pitch × sensors size
(mm)
output max current optimal
range
LED board
4 mm × 6 25.0 × 20.0 analog 3.5 mA 14 mA 10 mm

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 general, the closer the object, the higher the contrast between light and dark readings, but high-reflectance objects are generally detectable out to around 40 mm. This version features high-performance, low-current QTRX sensors with lenses.

Pololu item #: 4306
Brand: Pololu
Status: Active and Preferred 
Free add-on shipping in USA 
Temporarily out of stock. See product page to backorder.
Out of stock.
Quantity:
pitch × sensors size
(mm)
output max current optimal
range
LED board
4 mm × 6 25.0 × 20.0 RC (digital) 3.5 mA 14 mA 10 mm

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 general, the closer the object, the higher the contrast between light and dark readings, but high-reflectance objects are generally detectable out to around 40 mm. This version features high-performance, low-current QTRX sensors with lenses.

Pololu item #: 4206
Brand: Pololu
Status: Active and Preferred 
Free add-on shipping in USA 
Temporarily out of stock. See product page to backorder.
Out of stock.
Quantity:
pitch × sensors size
(mm)
output max current optimal
range
LED board
4 mm × 6 25.0 × 20.0 analog 30 mA 93 mA 5 mm

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 general, the closer the object, the higher the contrast between light and dark readings, but high-reflectance objects are generally detectable out to around 40 mm. This version features the traditional-style QTR sensors without lenses.

Pololu item #: 4106
Brand: Pololu
Status: Active and Preferred 
Free add-on shipping in USA 
Temporarily out of stock. See product page to backorder.
Out of stock.
Quantity:
pitch × sensors size
(mm)
output max current optimal
range
LED board
4 mm × 6 25.0 × 20.0 RC (digital) 30 mA 93 mA 5 mm

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 general, the closer the object, the higher the contrast between light and dark readings, but high-reflectance objects are generally detectable out to around 40 mm. This version features the traditional-style QTR sensors without lenses.

Pololu item #: 4445
Brand: Pololu
Status: Active and Preferred 
Free add-on shipping in USA 
Temporarily out of stock. See product page to backorder.
Out of stock.
Quantity:
pitch × sensors size
(mm)
output max current optimal
range
LED board
8 mm × 5 37.0 × 20.0 analog 3.5 mA 14 mA 10 mm

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 general, the closer the object, the higher the contrast between light and dark readings, but high-reflectance objects are generally detectable out to around 40 mm. This version features high-performance, low-current QTRX sensors with lenses.

Pololu item #: 4345
Brand: Pololu
Status: Active and Preferred 
Free add-on shipping in USA 
Temporarily out of stock. See product page to backorder.
Out of stock.
Quantity:
pitch × sensors size
(mm)
output max current optimal
range
LED board
8 mm × 5 37.0 × 20.0 RC (digital) 3.5 mA 14 mA 10 mm

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 general, the closer the object, the higher the contrast between light and dark readings, but high-reflectance objects are generally detectable out to around 40 mm. This version features high-performance, low-current QTRX sensors with lenses.

Pololu item #: 4245
Brand: Pololu
Status: Active and Preferred 
Free add-on shipping in USA 
Temporarily out of stock. See product page to backorder.
Out of stock.
Quantity:
pitch × sensors size
(mm)
output max current optimal
range
LED board
8 mm × 5 37.0 × 20.0 analog 30 mA 93 mA 5 mm

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 general, the closer the object, the higher the contrast between light and dark readings, but high-reflectance objects are generally detectable out to around 40 mm. This version features the traditional-style QTR sensors without lenses.

Pololu item #: 4145
Brand: Pololu
Status: Active and Preferred 
Free add-on shipping in USA 
Temporarily out of stock. See product page to backorder.
Out of stock.
Quantity:
pitch × sensors size
(mm)
output max current optimal
range
LED board
8 mm × 5 37.0 × 20.0 RC (digital) 30 mA 93 mA 5 mm

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 general, the closer the object, the higher the contrast between light and dark readings, but high-reflectance objects are generally detectable out to around 40 mm. This version features the traditional-style QTR sensors without lenses.

Pololu item #: 4409
Brand: Pololu
Status: Active and Preferred 
Free add-on shipping in USA 
Temporarily out of stock. See product page to backorder.
Out of stock.
Quantity:
pitch × sensors size
(mm)
output max current optimal
range
LED board
4 mm × 9 37.0 × 20.0 analog 3.5 mA 22 mA 10 mm

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 general, the closer the object, the higher the contrast between light and dark readings, but high-reflectance objects are generally detectable out to around 40 mm. This version features high-performance, low-current QTRX sensors with lenses.

Pololu item #: 4309
Brand: Pololu
Status: Active and Preferred 
Free add-on shipping in USA 
Temporarily out of stock. See product page to backorder.
Out of stock.
Quantity:
pitch × sensors size
(mm)
output max current optimal
range
LED board
4 mm × 9 37.0 × 20.0 RC (digital) 3.5 mA 22 mA 10 mm

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 general, the closer the object, the higher the contrast between light and dark readings, but high-reflectance objects are generally detectable out to around 40 mm. This version features high-performance, low-current QTRX sensors with lenses.

Pololu item #: 4209
Brand: Pololu
Status: Active and Preferred 
Free add-on shipping in USA 
Temporarily out of stock. See product page to backorder.
Out of stock.
Quantity:
pitch × sensors size
(mm)
output max current optimal
range
LED board
4 mm × 9 37.0 × 20.0 analog 30 mA 155 mA 5 mm

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 general, the closer the object, the higher the contrast between light and dark readings, but high-reflectance objects are generally detectable out to around 40 mm. This version features the traditional-style QTR sensors without lenses.

Pololu item #: 4109
Brand: Pololu
Status: Active and Preferred 
Free add-on shipping in USA 
Temporarily out of stock. See product page to backorder.
Out of stock.
Quantity:
pitch × sensors size
(mm)
output max current optimal
range
LED board
4 mm × 9 37.0 × 20.0 RC (digital) 30 mA 155 mA 5 mm

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 general, the closer the object, the higher the contrast between light and dark readings, but high-reflectance objects are generally detectable out to around 40 mm. This version features the traditional-style QTR sensors without lenses.

Pololu item #: 4442
Brand: Pololu
Status: Active and Preferred 
Free add-on shipping in USA 
Temporarily out of stock. See product page to backorder.
Out of stock.
Quantity:
pitch × sensors size
(mm)
output max current optimal
range
LED board
8 mm × 2 13.0 × 20.0 analog 3.5 mA 5 mA 10 mm

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 general, the closer the object, the higher the contrast between light and dark readings, but high-reflectance objects are generally detectable out to around 30 mm. This version features high-performance, low-current QTRX sensors with lenses.

Pololu item #: 4342
Brand: Pololu
Status: Active and Preferred 
Free add-on shipping in USA 
Temporarily out of stock. See product page to backorder.
Out of stock.
Quantity:
pitch × sensors size
(mm)
output max current optimal
range
LED board
8 mm × 2 13.0 × 20.0 RC (digital) 3.5 mA 5 mA 10 mm

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 general, the closer the object, the higher the contrast between light and dark readings, but high-reflectance objects are generally detectable out to around 30 mm. This version features high-performance, low-current QTRX sensors with lenses.

Pololu item #: 4242
Brand: Pololu
Status: Active and Preferred 
Free add-on shipping in USA 
Temporarily out of stock. See product page to backorder.
Out of stock.
Quantity:
pitch × sensors size
(mm)
output max current optimal
range
LED board
8 mm × 2 13.0 × 20.0 analog 30 mA 32 mA 5 mm

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 general, the closer the object, the higher the contrast between light and dark readings, but high-reflectance objects are generally detectable out to around 30 mm. This version features the traditional-style QTR sensors without lenses.

Pololu item #: 4142
Brand: Pololu
Status: Active and Preferred 
Free add-on shipping in USA 
Temporarily out of stock. See product page to backorder.
Out of stock.
Quantity:
pitch × sensors size
(mm)
output max current optimal
range
LED board
8 mm × 2 13.0 × 20.0 RC (digital) 30 mA 32 mA 5 mm

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 general, the closer the object, the higher the contrast between light and dark readings, but high-reflectance objects are generally detectable out to around 30 mm. This version features the traditional-style QTR sensors without lenses.

Pololu item #: 4403
Brand: Pololu
Status: Active and Preferred 
Free add-on shipping in USA 
Temporarily out of stock. See product page to backorder.
Out of stock.
Quantity:
pitch × sensors size
(mm)
output max current optimal
range
LED board
4 mm × 3 13.0 × 20.0 analog 3.5 mA 9 mA 10 mm

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 general, the closer the object, the higher the contrast between light and dark readings, but high-reflectance objects are generally detectable out to around 30 mm. This version features high-performance, low-current QTRX sensors with lenses.

Pololu item #: 4303
Brand: Pololu
Status: Active and Preferred 
Free add-on shipping in USA 
Temporarily out of stock. See product page to backorder.
Out of stock.
Quantity:
pitch × sensors size
(mm)
output max current optimal
range
LED board
4 mm × 3 13.0 × 20.0 RC (digital) 3.5 mA 9 mA 10 mm

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 general, the closer the object, the higher the contrast between light and dark readings, but high-reflectance objects are generally detectable out to around 30 mm. This version features high-performance, low-current QTRX sensors with lenses.

Pololu item #: 4203
Brand: Pololu
Status: Active and Preferred 
Free add-on shipping in USA 
Temporarily out of stock. See product page to backorder.
Out of stock.
Quantity:
pitch × sensors size
(mm)
output max current optimal
range
LED board
4 mm × 3 13.0 × 20.0 analog 30 mA 62 mA 5 mm

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 general, the closer the object, the higher the contrast between light and dark readings, but high-reflectance objects are generally detectable out to around 30 mm. This version features the traditional-style QTR sensors without lenses.

Pololu item #: 4103
Brand: Pololu
Status: Active and Preferred 
Free add-on shipping in USA 
Temporarily out of stock. See product page to backorder.
Out of stock.
Quantity:
pitch × sensors size
(mm)
output max current optimal
range
LED board
4 mm × 3 13.0 × 20.0 RC (digital) 30 mA 62 mA 5 mm

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 general, the closer the object, the higher the contrast between light and dark readings, but high-reflectance objects are generally detectable out to around 30 mm. This version features the traditional-style QTR sensors without lenses.

Pololu item #: 2009
Brand: Generic
Temporarily out of stock. See product page to backorder.
Out of stock.
Quantity:

These hexagonal male-female aluminum standoffs keep parts spaced 1.5" (38 mm) apart and are great for building a multi-level robot chassis. Both ends of these 3/16"-wide standoffs have 2-56 threads. The standoffs are sold in packs of 4.

Pololu item #: 4443
Brand: Pololu
Status: Active and Preferred 
Free add-on shipping in USA 
Temporarily out of stock. See product page to backorder.
Out of stock.
Quantity:
pitch × sensors size
(mm)
output max current optimal
range
LED board
8 mm × 3 21.0 × 20.0 analog 3.5 mA 9 mA 10 mm

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 general, the closer the object, the higher the contrast between light and dark readings, but high-reflectance objects are generally detectable out to around 30 mm. This version features high-performance, low-current QTRX sensors with lenses.

Pololu item #: 4343
Brand: Pololu
Status: Active and Preferred 
Free add-on shipping in USA 
Temporarily out of stock. See product page to backorder.
Out of stock.
Quantity:
pitch × sensors size
(mm)
output max current optimal
range
LED board
8 mm × 3 21.0 × 20.0 RC (digital) 3.5 mA 9 mA 10 mm

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 general, the closer the object, the higher the contrast between light and dark readings, but high-reflectance objects are generally detectable out to around 30 mm. This version features high-performance, low-current QTRX sensors with lenses.

Pololu item #: 4243
Brand: Pololu
Status: Active and Preferred 
Free add-on shipping in USA 
Temporarily out of stock. See product page to backorder.
Out of stock.
Quantity:
pitch × sensors size
(mm)
output max current optimal
range
LED board
8 mm × 3 21.0 × 20.0 analog 30 mA 62 mA 5 mm

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 general, the closer the object, the higher the contrast between light and dark readings, but high-reflectance objects are generally detectable out to around 30 mm. This version features the traditional-style QTR sensors without lenses.

Pololu item #: 4143
Brand: Pololu
Status: Active and Preferred 
Free add-on shipping in USA 
Temporarily out of stock. See product page to backorder.
Out of stock.
Quantity:
pitch × sensors size
(mm)
output max current optimal
range
LED board
8 mm × 3 21.0 × 20.0 RC (digital) 30 mA 62 mA 5 mm

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 general, the closer the object, the higher the contrast between light and dark readings, but high-reflectance objects are generally detectable out to around 30 mm. This version features the traditional-style QTR sensors without lenses.

Pololu item #: 2969
Brand: Pololu
Status: Active and Preferred 
Temporarily out of stock. See product page to backorder.
Out of stock.
Quantity:

This version of our MP6500 Stepper Motor Driver Carrier with Digital Current Control ships with male header pins installed, so no soldering is required to use it with an appropriate 16-pin socket or solderless breadboard. Please see the MP6500 Stepper Motor Driver Carrier, Digital Current Control product page for more information about the driver.

Pololu item #: 2967
Brand: Pololu
Status: Active and Preferred 
Temporarily out of stock. See product page to backorder.
Out of stock.
Quantity:

This version of our MP6500 Stepper Motor Driver Carrier with Potentiometer Current Control ships with male header pins installed, so no soldering is required to use it with an appropriate 16-pin socket or solderless breadboard. Please see the MP6500 Stepper Motor Driver Carrier, Potentiometer Current Control product page for more information about the driver.

Pololu item #: 4405
Brand: Pololu
Status: Active and Preferred 
Free add-on shipping in USA 
Temporarily out of stock. See product page to backorder.
Out of stock.
Quantity:
pitch × sensors size
(mm)
output max current optimal
range
LED board
4 mm × 5 21.0 × 20.0 analog 3.5 mA 14 mA 10 mm

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 general, the closer the object, the higher the contrast between light and dark readings, but high-reflectance objects are generally detectable out to around 40 mm. This version features high-performance, low-current QTRX sensors with lenses.

Pololu item #: 4305
Brand: Pololu
Status: Active and Preferred 
Free add-on shipping in USA 
Temporarily out of stock. See product page to backorder.
Out of stock.
Quantity:
pitch × sensors size
(mm)
output max current optimal
range
LED board
4 mm × 5 21.0 × 20.0 RC (digital) 3.5 mA 14 mA 10 mm

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 general, the closer the object, the higher the contrast between light and dark readings, but high-reflectance objects are generally detectable out to around 40 mm. This version features high-performance, low-current QTRX sensors with lenses.

Pololu item #: 4205
Brand: Pololu
Status: Active and Preferred 
Free add-on shipping in USA 
Temporarily out of stock. See product page to backorder.
Out of stock.
Quantity:
pitch × sensors size
(mm)
output max current optimal
range
LED board
4 mm × 5 21.0 × 20.0 analog 30 mA 93 mA 5 mm

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 general, the closer the object, the higher the contrast between light and dark readings, but high-reflectance objects are generally detectable out to around 40 mm. This version features the traditional-style QTR sensors without lenses.

Pololu item #: 4105
Brand: Pololu
Status: Active and Preferred 
Free add-on shipping in USA 
Temporarily out of stock. See product page to backorder.
Out of stock.
Quantity:
pitch × sensors size
(mm)
output max current optimal
range
LED board
4 mm × 5 21.0 × 20.0 RC (digital) 30 mA 93 mA 5 mm

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 general, the closer the object, the higher the contrast between light and dark readings, but high-reflectance objects are generally detectable out to around 40 mm. This version features the traditional-style QTR sensors without lenses.

Pololu item #: 3799
Brand: Pololu
Status: Active and Preferred 
Free add-on shipping in USA 
Temporarily out of stock. See product page to backorder.
Out of stock.
Quantity:

This compact (0.4″ × 0.5″) switching step-down (or buck) voltage regulator takes input voltages between 4 V and 50 V and efficiently reduces them to a lower, user-adjustable voltage set by an on-board trimmer potentiometer. It has an output voltage range of 4 V to 25 V and a maximum output current of 600 mA. It has a very low dropout, so it can be used with input voltages that are within a few hundred millivolts of its output. The pins have a 0.1″ spacing, making this board compatible with standard solderless breadboards and perfboards.

Pololu item #: 3798
Brand: Pololu
Status: Active and Preferred 
Free add-on shipping in USA 
Temporarily out of stock. See product page to backorder.
Out of stock.
Quantity:

This compact (0.4″ × 0.5″) switching step-down (or buck) voltage regulator takes input voltages between 4 V and 50 V and efficiently reduces them to a lower, user-adjustable voltage set by an on-board trimmer potentiometer. It has an output voltage range of 2.5 V to 7.5 V and a maximum output current of 600 mA. It has a very low dropout, so it can be used with input voltages that are within a few hundred millivolts of its output. The pins have a 0.1″ spacing, making this board compatible with standard solderless breadboards and perfboards.

Pololu item #: 3797
Brand: Pololu
Status: Active and Preferred 
Free add-on shipping in USA 
Temporarily out of stock. See product page to backorder.
Out of stock.
Quantity:

This compact (0.4″ × 0.5″) switching step-down (or buck) voltage regulator takes input voltages up to 50 V and efficiently reduces them to 15 V while allowing for a maximum output current of 600 mA. It has a very low dropout, so it can be used with input voltages that are within a few hundred millivolts of its output. The pins have a 0.1″ spacing, making this board compatible with standard solderless breadboards and perfboards.

Pololu item #: 3796
Brand: Pololu
Status: Active and Preferred 
Free add-on shipping in USA 
Temporarily out of stock. See product page to backorder.
Out of stock.
Quantity:

This compact (0.4″ × 0.5″) switching step-down (or buck) voltage regulator takes input voltages up to 50 V and efficiently reduces them to 12 V while allowing for a maximum output current of 600 mA. It has a very low dropout, so it can be used with input voltages that are within a few hundred millivolts of its output. The pins have a 0.1″ spacing, making this board compatible with standard solderless breadboards and perfboards.

Pololu item #: 3795
Brand: Pololu
Status: Active and Preferred 
Free add-on shipping in USA 
Temporarily out of stock. See product page to backorder.
Out of stock.
Quantity:

This compact (0.4″ × 0.5″) switching step-down (or buck) voltage regulator takes input voltages up to 50 V and efficiently reduces them to 9 V while allowing for a maximum output current of 600 mA. It has a very low dropout, so it can be used with input voltages that are within a few hundred millivolts of its output. The pins have a 0.1″ spacing, making this board compatible with standard solderless breadboards and perfboards.

Pololu item #: 3794
Brand: Pololu
Status: Active and Preferred 
Free add-on shipping in USA 
Temporarily out of stock. See product page to backorder.
Out of stock.
Quantity:

This compact (0.4″ × 0.5″) switching step-down (or buck) voltage regulator takes input voltages up to 50 V and efficiently reduces them to 7.5 V while allowing for a maximum output current of 600 mA. It has a very low dropout, so it can be used with input voltages that are within a few hundred millivolts of its output. The pins have a 0.1″ spacing, making this board compatible with standard solderless breadboards and perfboards.

Pololu item #: 3793
Brand: Pololu
Status: Active and Preferred 
Free add-on shipping in USA 
Temporarily out of stock. See product page to backorder.
Out of stock.
Quantity:

This compact (0.4″ × 0.5″) switching step-down (or buck) voltage regulator takes input voltages up to 50 V and efficiently reduces them to 6 V while allowing for a maximum output current of 600 mA. It has a very low dropout, so it can be used with input voltages that are within a few hundred millivolts of its output. The pins have a 0.1″ spacing, making this board compatible with standard solderless breadboards and perfboards.

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