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Pololu

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1921-POLOLU 0.1" (2.54mm) Crimp Connector Housing: 2x12-Pin 5-Pack
1921-POLOLU 0.1" (2.54mm) Crimp Connector Housing: 2x12-Pin 5-Pack
CA$4.30
These 2×12-pin housings work with wires with pre-crimped terminals to let you quickly make custom cables that mate with various 0.1"-spaced connectors, including male or female headers and solderless breadboards. They are sold in packs of 5.
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4203-POLOLU QTR-HD-03A Reflectance Sensor Array: 3-Channel, 4mm Pitch, Analog Output
CA$4.14
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.
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4103-POLOLU QTR-HD-03RC Reflectance Sensor Array: 3-Channel, 4mm Pitch, RC Output
CA$4.14
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.
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953-POLOLU Ball Caster with 1/2″ Metal Ball
CA$3.98
This ball caster kit includes a black ABS housing, a 1/2″ diameter metal 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 spacers. The two included #2 screws can be used to mount the ball caster to your chassis.
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950-POLOLU Ball Caster with 3/8" Plastic Ball
950-POLOLU Ball Caster with 3/8" Plastic Ball
CA$3.95
This ball caster kit includes a black ABS housing, a 3/8" diameter plastic ball, two spacers (1/16" and 1/8" thick), and two #2 screw sets.
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952-POLOLU Ball Caster with 1/2″ Plastic Ball
CA$3.95
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 spacers. The two included #2 screws can be used to mount the ball caster to your chassis.
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1915-POLOLU 0.1" (2.54mm) Crimp Connector Housing: 2x7-Pin 5-Pack
1915-POLOLU 0.1" (2.54mm) Crimp Connector Housing: 2x7-Pin 5-Pack
CA$3.93
These 2×7-pin housings work with our wires with pre-crimped terminals to let you quickly make custom cables that mate with various 0.1"-spaced connectors, including male or female headers and solderless breadboards. They are sold in packs of 5.
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1916-POLOLU 0.1" (2.54mm) Crimp Connector Housing: 2x8-Pin 5-Pack
1916-POLOLU 0.1" (2.54mm) Crimp Connector Housing: 2x8-Pin 5-Pack
CA$3.93
These 2×8-pin housings work with our wires with pre-crimped terminals to let you quickly make custom cables that mate with various 0.1"-spaced connectors, including male or female headers and solderless breadboards. They are sold in packs of 5.
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951-POLOLU Pololu Ball Caster with 3/8" Metal Ball
951-POLOLU Pololu Ball Caster with 3/8" Metal Ball
CA$3.88
This ball caster kit includes a black ABS housing, a 3/8" diameter metal ball, two spacers (1/16" and 1/8" thick), and two #2 screw sets. The total height of the ball caster, 0.4", can be increased to about 0.6" using the included spacers.
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6-Pin Female JST SH-Style Cable 75cm
CA$3.84
This 75 cm (30″) cable has six 28 AWG wires and a 6-pin female JST SH-type connector that works with our Micro Metal Gearmotor Encoders with top-entry connectors and with side-entry connectors. The other ends of the wires are unterminated; they can be cut to length to match your application.
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4201-POLOLU QTR-HD-01A Reflectance Sensor: 1-Channel, 5mm Wide, Analog Output
CA$3.76
This IR LED/phototransistor pair 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 a traditional-style QTRsensor without lenses.
Delivery within 2-3 weeks
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2745-POLOLU 0.100" (2.54 mm) Female Header: 2x13-Pin, Straight
CA$3.45
These 0.1" straight female header strips are commonly used as low-cost connectors for custom-made cables or perforated prototyping PCBs. The standard spacing is the same as on most solderless breadboardsand matches 0.1" male header strips. Our female headers are available in a variety of commonly used pin counts.
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1920-POLOLU 0.1" (2.54mm) Crimp Connector Housing: 1x16-Pin 5-Pack
1920-POLOLU 0.1" (2.54mm) Crimp Connector Housing: 1x16-Pin 5-Pack
CA$3.37
These 1×16-pin housings work with our wires with pre-crimped terminals to let you quickly make custom cables that mate with various 0.1"-spaced connectors, including male or female headers and solderless breadboards. They are sold in packs of 5.
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4301-POLOLU QTRX-HD-01RC Reflectance Sensor: 1-Channel, 5mm Wide, RC Output, Low Current
CA$3.34
This IR LED/phototransistor pair 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 a high-performance, low-current QTRX sensor with lenses.
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4401-POLOLU QTRX-HD-01A Reflectance Sensor: 1-Channel, 5mm Wide, Analog Output, Low Current
CA$3.34
This IR LED/phototransistor pair 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 a high-performance, low-current QTRX sensor with lenses.
In stock
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