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POLOLU ELECTRONICS AND ROBOT

POLOLU ELECTRONICS AND ROBOT


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  • 100:1 Micro Metal Gearmotor MP
    This gearmotor is a miniature (0.94" x 0.39" x 0.47") brushed DC motor with 100:1 metal gearbox, similar to Sanyo’s popular 12 mm gearmotors. These units have a 0.365"-long, 3 mm-diameter D-shaped output shaft. Key specs at 6 V: 220 RPM and 40 mA free-run, 19 oz-in (1.4 kg-cm) and 0.7 A stall. Overview These tiny brushed DC gearmotors are intended for use at 6 V, though in general, these kinds of motors can run at voltages above and below this nominal voltage, so they should comfortably operate in the 3 – 9 V range (rotation can start at voltages as low as 0.5 V). Lower voltages might not be practical, and higher voltages could start negatively affecting the life of the motor. The micro metal gearmotors are available in..
    S$25.00
  • 47:1 Metal Gearmotor 25Dx52L mm with 48 CPR Encoder
    This cylindrical, 2.54" x 0.98" x 0.98" brushed DC gearmotor with a 46.85:1 metal gearbox is a lower-current alternative to the HP version. It has an integrated 48 CPR quadrature encoder on the motor shaft, which provides 2249 counts per revolution of the gearbox’s output shaft. These units have a 0.315"-long, 4 mm-diameter D-shaped output shaft. These motors are intended for use at 6 V. In general, these kinds of motors can run at voltages above and below this nominal voltage, so they should comfortably operate in the 3 – 9 V range, though they can begin rotating at voltages as low as 1 V. Higher voltages could start negatively affecting the life of the motor. Gearmotor Dimensions These gearmotors have output shafts with a diameter of 4 mm. The..
    S$53.80
  • 50:1 Micro Metal Gearmotor HP 6V
    50:1 Micro Metal Gearmotor HP 6V This gearmotor is a miniature high-power, 6 V brushed DC motor with a 51.45:1 metal gearbox. It has a cross section of 10 × 12 mm, and the D-shaped gearbox output shaft is 9 mm long and 3 mm in diameter. Key specs at 6 V: 625 RPM and 120 mA with no load, 15 oz-in (1.1 kg-cm) and 1.6 A at stall.   Overview These tiny brushed DC gearmotors are available in a wide range of gear ratios—from 5:1 up to 1000:1—and with five different motors: high-power 6 V and 12 V motors with long-life carbon brushes (HPCB), and high-power (HP), medium power (MP), and low power (LP) 6 V motors with shorter-life precious metal brushes. The 6 V ..
    S$25.50
  • A4988 Stepper Motor Driver Carrier
    This breakout board for Allegro’s A4988 microstepping bipolar stepper motor driver features adjustable current limiting, over-current and over-temperature protection, and five different microstep resolutions (down to 1/16-step). It operates from 8 V to 35 V and can deliver up to approximately 1 A per phase without a heat sink or forced air flow (it is rated for 2 A per coil with sufficient additional cooling). This board ships with 0.1″ male header pins included but not soldered in.   Overview This product is a carrier board or breakout board for Allegro’s A4988 DMOS Microstepping Driver with Translator and Overcurrent Protection; we therefore recommend careful reading of the A4988 datasheet (1MB pdf) before using this product. This stepper..
    S$9.30
  • A4988 Stepper Motor Driver Carrier with Voltage Regulators
    This is a breakout board for Allegro’s A4988 microstepping bipolar stepper motor driver. It has two voltage regulators (5 V and 3.3 V), eliminating the need for separate logic and motor supplies. The driver features adjustable current limiting, overcurrent and overtemperature protection, and five different microstep resolutions (down to 1/16-step). It operates from 8 – 35 V and can deliver up to approximately 1 A per phase without a heat sink or forced air flow (it is rated for 2 A per coil with sufficient additional cooling). This board ships with 0.1″ male header pins included but not soldered in.   Description   Specs (10)   Pictures (6)   Resources (3..
    S$14.20
  • A4988 Stepper Motor Driver Carrier, Black Edition
    Our Black Edition A4988 stepper motor driver carrier is a higher-performance drop-in replacement for the original A4988 stepper motor driver carrier. It features a four-layer PCB for better thermal performance, allowing the A4988 microstepping bipolar stepper motor driver to deliver approximately 20% more current than our two-layer (green) version. Like our original carrier, the Black Edition offers adjustable current limiting, over-current and over-temperature protection, and five different microstep resolutions. It operates from 8 V to 35 V and can deliver up to 2 A per coil with sufficient additional cooling. This board ships with 0.1″ male header pins included but not soldered in.   Overview This product is a carrier board or breakout board for A..
    S$23.20
  • CP2104 USB-to-Serial Adapter Carrier
    This USB-to-serial adapter lets you easily connect a TTL serial device to a PC by acting as a virtual serial port. The board is a Micro-USB carrier for the Silicon Labs CP2104 USB-to-UART bridge that provides access to all of its control signal pins and GPIO pins.   Overview   CP2104 USB-to-serial adapter carrier, bottom view with dimensions.   This USB-to-serial adapter is a breakout board for the Silicon Labs CP2104 USB-to-UART bridge, and it is a great solution for connecting microcontroller projects and other logic-level serial devices to a personal computer. The tiny unit measures only 0.6″ × 0.95″ including its Micro-USB connector. It offers several options for accessing the data, control, ..
    S$9.30
  • DRV8825 Stepper Motor Driver Carrier, High Current
    This breakout board for TI’s DRV8825 microstepping bipolar stepper motor driver features adjustable current limiting, over-current and over-temperature protection, and six microstep resolutions (down to 1/32-step). It operates from 8.2 V to 45 V and can deliver up to approximately 1.5 A per phase without a heat sink or forced air flow (rated for up to 2.2 A per coil with sufficient additional cooling). The driver has a pinout and interface that are nearly identical to those of our A4988 stepper motor driver carriers, so it can be used as a higher-performance drop-in replacement for those boards in many applications. This board ships with 0.1″ male header pins included but not soldered in.   Overview This product is a carrier board or breakout bo..
    S$14.00
  • Elenco 21-880 Line-Tracking Mouse
    The line-tracking mouse is an excellent, low-cost robot for someone who has previous soldering experience and would like to get started with robots. This kit features two independent gearboxes, two printed circuit boards, a plywood base, and a clear, mouse-shaped body. The line-tracking mouse is an excellent, low-cost robot for someone who has previous soldering experience and would like to get started with robots. This kit features two independent gearboxes, two printed circuit boards, a plywood base, and a clear, mouse-shaped body. This kit includes three infrared sensors along the bottom of the robot and a microphone that allows you to start the robot by clapping or tapping its body. Three LEDs show you what the robot “sees”, and two other LEDs light up when their correspondi..
    S$59.90
  • Elenco 21-881 Sound Reversing Car
    Elenco 21-881 Sound Reversing Car This kit is a low-cost implementation of the common introductory robot that backs up and turns when it hears a sound or hits an obstacle. The kit is quite basic, but because the instructions do not provide soldering instructions, we recommend this kit for someone who has completed at least one previous soldering project. This kit is a low-cost implementation of the common introductory robot that backs up and turns when it hears a sound or hits an obstacle. The kit is quite basic, but because the instructions do not provide soldering instructions, we recommend this kit for someone who has completed at least one previous soldering project. The kit consists of a painted plywood base, a printed circuit board, one motor and gearbox, and a battery..
    S$39.90