Pololu

These white plastic wheels have silicone tires and measure 70 mm (2.75″) in diameter. They mount onto standard servo splines with 25 teeth and a 5....

These black plastic wheels have silicone tires and measure 90 mm (3.54″) in diameter. They mount onto standard servo splines with 25 teeth and a 5....

These red plastic wheels have silicone tires and measure 90 mm (3.54″) in diameter. They mount onto standard servo splines with 25 teeth and a 5.8 ...

These white plastic wheels have silicone tires and measure 90 mm (3.54″) in diameter. They mount onto standard servo splines with 25 teeth and a 5....

This power distribution board is designed specifically for the Romi chassis as a convenient way to access the chassis's battery power and pass tha...

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 mounte...

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

This compact module packs three IR LED/phototransistor pairs onto a 1.25″ × 0.3″ board. The sensors are mounted on a 0.375″ pitch, making this arr...

This compact module packs three IR LED/phototransistor pairs onto a 1.25″ × 0.3″ board. The sensors are mounted on a 0.375″ pitch, allowing this ar...

This sensor module has 8 IR LED/phototransistor pairs mounted on a 0.375" pitch, making it a great detector for a line-following robot. Pairs of LE...

This sensor module has 8 IR LED/phototransistor pairs mounted on a 0.375" pitch, making it a great detector for a line-following robot. Pairs of L...

This sensor module has 8 IR LED/phototransistor pairs mounted on a 0.375" pitch, making it a great detector for a line-following robot. Pairs of LE...

This sensor module has 8 IR LED/phototransistor pairs mounted on a 0.375" pitch, making it a great detector for a line-following robot. Pairs of LE...

sensors size (mm) output max current optimal range LEDs board 1 5.0 × 20.0 analogous 30 mA 32 mA 5 mm ...

sensors size (mm) output max current optimal range LEDs board 1 5.0 × 20.0 RC (digital) 30 mA 32 mA 5 mm ...

pitch × sensors size (mm) output max current optimal range LEDs board 4mm×2 10.2 × 20.0 analogous 30 mA 32 mA ...

pitch × sensors size (mm) output max current optimal range LEDs board 4mm×2 10.2 × 20.0 RC (digital) 30 mA 32 ...

pitch × sensors size (mm) output max current optimal range LEDs board 4mm×3 13.0 × 20.0 analogous 30 mA 62 mA ...

pitch × sensors size (mm) output max current optimal range LEDs board 4mm×3 13.0 × 20.0 RC (digital) 30 mA 62 ...

pitch × sensors size (mm) output max current optimal range LEDs board 4mm×4 17.0 × 20.0 analogous 30 mA 62 mA ...

pitch × sensors size (mm) output max current optimal range LEDs board 4mm×4 17.0 × 20.0 RC (digital) 30 mA 62 ...

pitch × sensors size (mm) output max current optimal range LEDs board 4mm×5 21.0 × 20.0 analogous 30 mA 93 mA ...

pitch × sensors size (mm) output max current optimal range LEDs board 4mm×5 21.0 × 20.0 RC (digital) 30 mA 93 ...

pitch × sensors size (mm) output max current optimal range LEDs board 4mm×6 25.0 × 20.0 analogous 30 mA 93 mA ...