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Buy your Mark III Robot kit and accessories here!

Junun Robotics will be closed between 23 September and 1 October. You may still place an order while we are closed. However, orders placed between those dates will not be shipped until after 1 October.

All orders for in-stock products placed before noon (PDT) on 22 September will ship before we close.

If you're purchasing from outside the U.S. please read our Shipping Policy.

Support for the Mark III robot can be obtained through the discussion list at http://groups.yahoo.com/group/MiniSumoMarkIII/.

Mark III Complete Kit $92.00
This is the complete Mark III Robot kit, everything you need to build a working autonomous robot including controller board, sensors, pre-programmed PIC, chassis, wheels, motors, documentation and software. Just add batteries. Assembly required.
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Mark III Chassis Kit $12.00
Chassis, Scoop, Standoffs, Battery Holder, Screws, Nuts, Washers - everything you need to build a base platform for a Mark III robot. Wheels and Servos not included.
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Mark III Controller Board Kit $30.00
Controller board for Mark III. Includes all the parts needed. Buy this item if you already have a robot base and motors, and just need the "brains". Assembly required.
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Mark III Prototype Board Kit $6.00
Prototyping mezzanine board - mounts on top of Controller board, providing access to all 40 PIC pins (except for the oscillator in/out pins). Has ample prototyping space for through-hole components - supports .3 and .6 inch DIP packages.
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Mark III Sensor Board Kit $12.00
Sensor mezzanine board. Comes with the minimum number of parts needed to make the sensor board functional: 1 bare PCB, 1 6-pin stacking header, 1 40-pin stacking header, 2 3-pin servo headers, 1 22KOhm resistor network, 1 PCF8574 I²C Expander, 1 5-pin I²C connector, 1 6-position DIP switch.
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Accelerometer Kit $19.50
Requires Sensor Board Kit
Analog Devices ADXL202E 2-axis accelerometer. It measures accelerations between -2g and +2g, and can be used to detect tilt of less than 1 degree in any direction.
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Analog Input Expander Kit $22.00
Requires Sensor Board Kit
Add 8 channels of 12-bit Analog input to your Mark III sensor board. Kit includes MAX127BCNG data acquisition chip, 1 4.7uF electrolytic capacitor and 1 0.01uF ceramic capacitor.
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H-Bridge Kit $9.00
Requires Sensor Board Kit
Add four 1A DC motor drivers to your Mark III sensor board. Kit includes 2 Texas Instruments SN754410NE dual H-bridge chips, 4 green LEDs and 4 red LEDs to indicate motor direction, 4 1KOhm pull-up resistors, 1 74HC04 hex inverter, and 4 3-pin motor headers (Handyboard pinout).
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Sharp GP2D12 Distance Measuring Sensor $9.75
Infrared distance measuring sensor. Accurately determines range to target between 10cm and 80cm. Can be used as a proximity detector to detect objects between 0cm and 130cm.
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Sharp GP2Y0A21YK Distance Measuring Sensor $9.25
Wider-angle infrared distance measuring sensor. Approximately twice the beam width of the Sharp GP2D12. Accurately determines range to target between 10cm and 80cm. Can be used as a proximity detector to detect objects between 0cm and 130cm.
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Sharp GP2Y0A02YK Distance Measuring Sensor $9.25
Long-range infrared distance measuring sensor. Accurately determines range to target between 20cm and 150cm. Can be used as a proximity detector to detect objects between 0cm and 250cm.
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Sharp GP2D120 Distance Measuring Sensor $7.75
Short-range infrared distance measuring sensor. Accurately determines range to target between 4cm and 30cm. Can be used as a proximity detector to detect objects between 0cm and 50cm.
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Sharp GP2D15 Distance Measuring Sensor $8.75
Infrared distance measuring sensor. Digital output, reads high when an object is closer than 24cm.
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Sharp GP2Y0D02YK Distance Measuring Sensor $10.25
Long-range infrared distance measuring sensor. Digital output, reads high when an object is closer than 80cm.
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Sharp GP2D02 Distance Measuring Sensor $12.50
Infrared distance measuring sensor. Accurately determines range to target between 10cm and 80cm. Output is an 8-bit binary number representing the distance, read serially. Comes with a 1N4148 protection diode.
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Sharp GP2Y0D340K Distance Measuring Sensor $7.00
The GP2Y0D340K is Sharp's smallest distance measuring sensor. The digital output reads low when an object is closer than 40cm and high when no object is in range.
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Sharp GP2Y3A001K0F Multi-Beam Ranging Sensor $37.00
Five-in-one infrared distance measuring sensor. Five infrared beams independently determine range to target between 4cm and 30cm over a very wide 25 degree field of view. Individual enable lines for each beam used to control power consumption.
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Sharp GP2Y3A002K0F Multi-Beam Ranging Sensor $37.00
Five-in-one infrared distance measuring sensor. Five infrared beams independently determine range to target between 20cm and 150cm over a very wide 25 degree field of view. Individual enable lines for each beam used to control power consumption.
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Sharp GP2Y3A003K0F Multi-Beam Ranging Sensor $37.00
Five-in-one infrared distance measuring sensor. Five infrared beams independently determine range to target between 40cm and 300cm over a very wide 25 degree field of view. Individual enable lines for each beam used to control power consumption.
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3-pin JST Cable for Sharp Sensors (12 inch) $1.10
Cable with attached connector that mates with any of the three-pin Sharp Infrared Distance Measuring sensors.
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4-pin JST Cable for Sharp Sensors (12 inch) $1.10
Cable with attached connector that mates with the Sharp GP2D02 Infrared Distance Measuring sensor and other Sharp 4-pin sensors.
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9-pin MOLEX Cable for Sharp Multi-Beam Sensors (12 inch) $3.00
Cable with attached connector that mates with any of the nine-pin Sharp Infrared Multi-Beam Ranging sensors.
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Standard-torque Ball-bearing Servo Motor $12.00
GWS S03N 2BB Standard-torque Ball-bearing servo motor. This motor has two ball bearings, generates 47 oz.in. of torque, and is easy to modify for continuous rotation. This is the same servo motor that's included in the Mark III Complete Kit.
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High-torque Ball-bearing Servo Motor $11.00
GWS S03TXF 2BB High torque servo motor. This motor generates more than 69 oz.in. of torque, compared to the "standard" servo motor torque of 47 oz.in. This high-torque servo motor is 4mm taller than a standard motor, so it may not fit on your robot.
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High-speed Ball-bearing Servo Motor $14.00
GWS S03NXF 2BB High speed servo motor. More than 50% faster compared to the standard servo motor. This high-speed servo motor is the same size as our standard servo motor.
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Pico Ball-bearing Servo Motor $14.00
GWS Pico+F BB servo motor. This tiny ball-bearing servo motor is ideal for mounting a "scanning" sensor on your Mark III robot. The servo can be driven by one of the four PWM output ports on the Mark III. Comes with accessory package which includes servo arms and mounting hardware.
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Naro Ball-bearing Servo Motor $14.00
GWS Naro+F H/BB servo motor. This tiny ball-bearing servo motor is ideal for mounting a "scanning" sensor on your Mark III robot. The servo can be driven by one of the four PWM output ports on the Mark III. Comes with accessory package which includes servo arms and mounting hardware.
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Mighty Micro Ball-bearing Metal Gear Servo Motor $17.00
GWS Micro 2BBMG "Mighty Micro" Ball-bearing Metal Gear Servo Motor. This motor is significantly smaller, lighter, and higher-torque compared to the "standard" servo motor. Has two ball bearings and metal gears. Comes with accessory package which includes servo arms and mounting hardware.
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Continuous Rotation Ball-bearing Servo Motor $16.00
This is the same servo motor that's included in the Mark III Complete Kit, except this one has been pre-modified for continuous rotation to save you the time and trouble of doing that yourself. This motor has two ball bearings for long life and smooth, quiet operation.
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Injection Molded Wheels $6.00
Perfect wheels for a small robot. This pair of wheels is injection molded out of ABS plastic. Spare set of tires included. Spline is molded into the wheel - spline fits Futaba, Tower Hobbies, and GWS servos.
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Rubber Traction Bands (10 Pack) $1.50
Replacement Rubber Traction Band tires for the Mark III Injection Molded Wheels.
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Tigerbotics Traction Tires $6.00
Give your robot that competitive edge with this pair of ultra-high traction tires custom injection molded using a proprietary high-tech elastomer. This soft, 14 Shore A material hugs the match surface for maximum adhesion to the ring. These tires fit on the Mark III Injection Molded Wheels.
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PIC Microprocessor with PICLoader $8.00
PIC 16F877-20/P microprocessor. 20MHz clock speed. 40-pin DIP. Pre-programmed with Rick Farmer's PICLoader bootloader. This is the same chip and bootloader used in the Mark III kit.
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Eltec 442-3 Pyroelectric Detector $57.00
Eltec 442-3 Near-infrared Pyroelectric detector. Used to sense body heat or flames. Comes with Fresnel lens.
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Fairchild QRB1134 IR Photoreflector $2.50
Infrared photoreflector sensor. Contains two elements, one which emits a beam of infrared light and the other which detects that light. An object in front of this sensor will reflect light. This sensor is used as a downward-looking detector on the Mark III, to detect the edge of the sumo ring or to detect a line to follow.
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256KBit I2C EEPROM $1.50
Microchip 24LC256 serial (I²C) EEPROM. Holds 256Kbits, or 32K x 8 bits. Required when using the OOPic chip on the Mark III controller board. Useful even in the standard Mark III configuration, since this provides a large amount of user-writeable space. Store maps, or state tables for your robot.
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Warp-13a PIC Programmer $94.00
The Warp-13a programs all PICs except the 17Cxx family. Plugs straight into MPLAB, the free development system from Microchip. Compatible with all leading ASM, BASIC and C compilers. Bonus support for the ATMEL AVR, tiny and Mega chips. Bonus support for 8-pin Serial EEPROMs 24C, 25C 93C, 59C, SPI, I²C and uWire types.
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12VAC 500mA Wall Transformer $6.00
12VAC 500mA Wall-mounted power transformer. Standard 2.1mm I.D. x 5.5mm O.D. connector. Works with the Warp-13a Programmer.
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Serial Extension Cable $4.00
Serial Extension Cable. DB9 Female connector on one end, DB9 Male connector on the other. All 9 pins wired straight through. Two meters long. Useful for connecting to the Mark III or the Warp-13a programmer.
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Devantech SRF02 Small Ultrasonic Range Finder $25.00
A single-transducer ultrasonic rangefinder in a small footprint PCB. Up to 16 SRF02 may be connected together on a single bus, either I2C or Serial.
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Devantech SRF04 Ultrasonic Range Finder $27.00
Uses sonar to detect obstacles. Has a much wider field-of-view than the Sharp infrared distance measuring sensors. Interfaces easily with the Mark III or your own robot design.
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Devantech SRF05 Low-Power Ultrasonic Range Finder $29.00
A lower-power version of the venerable SRF04, with improved performance and a few new features added in.
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Devantech SRF08 High Performance Ultrasonic Range Finder $64.00
The SRF08 is a high performance sensor that uses sonar to detect objects. It has a much wider field-of-view than the Sharp infrared distance measuring sensors. Interfaces easily with the Mark III or your own robot design.
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Devantech SRF04/SRF05/SRF08 Mounting Bracket $6.00
Mounting bracket designed for use with the Devantech SRF04 Ultrasonic Range Finder and the Devantech SRF08 High Performance Ultrasonic Range Finder. Can be used to attach the SRF04 or SRF10 to a servo to function as a "scanning" range sensor.
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Devantech SRF10 Small Ultrasonic Range Finder $58.00
The SRF10 is a very small high performance sensor that uses sonar to detect objects. This sensor takes up only 1/3 the volume of its big brother, the Devantech SRF08. Interfaces easily with the Mark III or your own robot design.
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Devantech SRF10 Mounting Bracket $7.50
Mounting bracket for Devantech SRF10 Small Ultrasonic Range Finder. Can be used to attach the SRF10 to a servo to function as a "scanning" range sensor.
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Devantech CMPS03 Digital Compass $54.00
Useful for navigation. Computes the direction of the horizontal component of the Earth's magnetic field with a precision of 0.1 degree. Reads out a unique number to represent the direction the robot is facing. Interfaces easily with the Mark III or your own robot design.
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Mark III Complete Kit (OOPic Version) $98.00
This is the complete Mark III Robot kit, everything you need to build a working autonomous robot including controller board, sensors, OOPic III+, Serial EEPROM, chassis, wheels, motors, documentation and software. Just add batteries. Assembly required.
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Mark III Controller Board Kit (OOPic Version) $49.00
Controller board for Mark III. Includes all the parts needed. Buy this item if you already have a robot base and motors, and just need the "brains". Assembly required.
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OOPic III+ Upgrade Kit $28.00
OOPic III+, 256Kb serial EEPROM, 8 pin socket, two shunts. Lets you turn your Mark III Robot into an OOPic-based robot, or use your Mark III Controller Board as an OOPic development board.
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SpeakJet Voice and Complex Sound Synthesizer Chip $24.00
The SpeakJet chip is used to quickly and easily add sound or speech to your robotics project. A serial line can be used to send instructions from a PC or CPU, and simultaneously, logic changes on any one of its eight input lines can trigger sound effects or stored phrases for stand-alone operation. Three multipurpose digital outputs are availble so the SpeakJet may be used to trigger actions in conjuction with sounds.
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Tigerbotics SpeakJet Development Board $35.00
This is a full-function, stand-alone development board for the SpeakJet chip. (Does not include the SpeakJet Chip). The board has all the external components needed to make the SpeakJet function, and has additional switches and LEDs for directly exercising the chip during development. All chip functions are made available by external connections for remote operation.
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Tigerbotics SpeakJet Development Board w/ SpeakJet Chip $55.00
This is a full-function, stand-alone development board for the SpeakJet chip. (This version does include the SpeakJet chip). The board has all the external components needed to make the SpeakJet function, and has additional switches and LEDs for directly exercising the chip during development. All chip functions are made available by external connections for remote operation.
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High-performance Speaker $8.00
High-quality speaker with enclosure and mounting bracket, ideal for using with the Tigerbotics SpeakJet Development Board or for any other audio application. The speaker is 50mm diameter, rated 8 Ohm, 6 Watt. It comes with a standard 3.5mm plug at the end of a four foot long cord.
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Devantech SP03 Speech Synthesizer $105.00
Make your robot talk! This speech synthesizer can remember up to 30 phrases with a total of 1925 characters. Repeats a given phrase in response to a simple command from your microcontroller. Interfaces easily with the Mark III or your own robot design.
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16x2 LCD Display with LED Backlight $8.00
Add a text display to your robot. This LCD has two lines of 16 characters, with an LED backlight. Standard Hitachi-compatible controller. Black metal bezel. Can be used on a Handyboard.
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20x4 LCD Display with LED Backlight $14.00
Add a text display to your robot. This LCD has four lines of 20 characters, with an LED backlight. Standard Hitachi-compatible controller. Black metal bezel. Can be used on a Handyboard.
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Replacement Gearset for Standard-torque Servo $2.50
Set of replacement gears for Standard-torque servo motor.
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Replacement Gearset for High-torque Servo $2.50
Set of replacement gears for High-torque servo motor.
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Replacement Gearset for Pico Servo $2.50
Set of replacement gears for Pico servo motor.
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Replacement Gearset for Naro Servo $2.50
Set of replacement gears for Naro servo motor.
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Servo Gear Lubricant $3.00
Lubricating grease for all brands of servos. Helps your servo motors run smoother for longer life.
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Servo Extension Cable (6 inch) $2.00
Extension cable for all servo motors. One end has a female plug, the other has a male shrouded socket. All connectors gold plated for superior contact. Simply connect your servo to one end and you have 6 extra inches of reach, perfect for the larger robot.
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Servo Extension Cable (12 inch) $2.00
Extension cable for all servo motors. One end has a female plug, the other has a male shrouded socket. All connectors gold plated for superior contact. Simply connect your servo to one end and you have 12 extra inches of reach, perfect for the larger robot.
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Servo Extension Cable (24 inch) $2.50
Extension cable for all servo motors. One end has a female plug, the other has a male shrouded socket. All connectors gold plated for superior contact. Simply connect your servo to one end and you have 24 extra inches of reach, perfect for the larger robot.
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Servo Y-Harness Cable $3.00
A Y-Harness splits the servo control signal, allowing you drive two servos from one control line or one R/C channel. Each leg of this harness is 6 inches long. One end has a female connector, the other two ends (the top branches of the "Y") have shrouded male headers which accept a standard servo plug.
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Heavy Duty Servo Arms $2.50
Set of three large heavy-duty servo arms. Spline fits Futaba, Tower Hobbies, and GWS servos.
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Sharp IS471F Proximity Detector $3.00
Infrared light sensor with built in pulse driver circuit and sync detector. Useful as a short-range wide-angle proximity detector or for non-contact bump sensing.
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High-Intensity Infrared LED (10 pack) $3.00
Package of 10 high-intensity infrared Light Emitting Diodes. Output wavelength of 940nm is well matched to Sharp IS471F input. These are the same infrared LEDs used in the MEGAbitty object sensors.
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Hamamatsu S6986 Proximity Sensor $4.00
Light sensor with built in pulse driver circuit and sync detector. Useful as a wide-angle proximity detector or for non-contact bump sensing. Similar to the Sharp IS471F, but with different frequency response and sensitivity.
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Hamamatsu P5587 IR Photoreflector $2.50
Tiny infrared photoreflector often used for wheel position encoders. Internal amplifier and Schmitt Trigger output make it ideal for interfacting to a digital input with minimal external components.
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Sharp GP1S036HEZ Tilt Sensor $2.00
Miniature Tilt Sensor has two outputs to indicate one of four orientations: up, down, right, or left. Can be used to indicate when your 'bot is upside down, or as a limit switch to detect inclination. Sealed optoelectronics for reliable functioning.
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SN754410NE 1A Quadruple Half H-Bridge $1.75
This popular H-Bridge chip can be used to drive 2 DC motors, solenoids, relays, or other inductive loads with a peak current of 2 amps and a continuous sustained current of 1.1 amps per driver. Supports load voltages from 4.5V to 36V.
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PCF8574 I/O Expander $1.75
Provides an 8-bit remote I/O port addressed via the I²C bus. Each I/O pin can source or sink as much as 25mA. As many as 8 of these chips can be simultaneously hooked up to an I²C bus, for a total of 64 I/O lines.
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Low Current Red LED (10 pack) $1.50
Package of 10 Red Light Emitting Diodes. These T-1 (3 mm) size LEDs are designed to be bright at currents as low as 2 mA, making them perfect for battery-powered applications.
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Low Current Green LED (10 pack) $1.50
Package of 10 Green Light Emitting Diodes. These T-1 (3 mm) size LEDs are designed to be bright at currents as low as 2 mA, making them perfect for battery-powered applications.
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Devantech MD22 5A Dual H-Bridge Motor Driver $104.00
The MD22 is a Dual H-Bridge designed to drive two motors with 5V-50V and up to 5A each. Five distinct control interfaces (Analog, PWM, R/C, and I²C) make the MD22 easy to incorporate into your robot design.
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Devantech MD03 20A H-Bridge Motor Driver $117.00
The MD03 is an H-Bridge designed to drive one motor with 5V-50V and up to 20A. A large heat sink ensures this motor driver can operate up to its rated limit. Four distinct control interfaces (Analog, PWM, R/C, and I²C) make the MD03 easy to incorporate into your robot design.
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Miniature Piezo Gyro $35.00
GWS PG-03 Piezo Gyro. This tiny gyro is about 1" square and weighs less than 0.3 oz! Piezo gyros can be used in robotics for balancing, or to detect rotation, or to drive a "tracking" servo which continues to point to a fixed object even if your robot turns.
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MEGAbitty Controller Board Kit (Assembled) $50.00
The MEGAbitty Controller Board is an Atmel AVR Mega8 based robot controller which measures only 0.9" x 0.9" and includes two H-bridge motor drivers and a 5V regulator.
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MEGAbitty Controller Board Kit $39.00
The MEGAbitty Controller Board is an Atmel AVR Mega8 based robot controller which measures only 0.9" x 0.9" and includes two H-bridge motor drivers and a 5V regulator.
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MEGAbitty 2-Way Object Sensor Board Kit $15.50
Forward object sensor for MEGAbitty or other small robot. Infrared LEDs are used to illuminate the target with modulated IR, while Sharp IS471F sensors are used to detect any reflected light. Detection distance approximately 6 inches, depending on target reflectivity and lighting conditions.
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MEGAbitty 3-way Object Sensor Board Kit $18.75
Forward object sensor for MEGAbitty or other small robot. Infrared LEDs are used to illuminate the target with modulated IR, while Sharp IS471F sensors are used to detect any reflected light. Detection distance approximately 6 inches, depending on target reflectivity and lighting conditions.
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MEGAbitty Micro Line Sensor Board Kit $11.25
Line Sensor Board for MEGAbitty or other small robot. Two small infrared photoreflectors are used to measure surface reflectivity.
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MEGAbitty 0.05" Spacing Socket Set $2.50
Extra socket connectors for the MEGAbitty board. Consists of four 1x3 sockets and two 1x4 sockets at a 0.05" spacing.
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MEGAbitty 0.05" Spacing Pin Set $2.50
Extra pin header connectors for the MEGAbitty Controller Board. Consists of four 1x3 pin headers and two 1x4 pin headers.
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Acroname Serial Interface Connector $10.00
RS-232 level shifter on a small DB-9 serial connector. Converts RS-232 signal levels - generated and required by your PC and other devices - into the TTL levels needed by microcontrollers and most robot electronics. This item may be used to interface your computer's serial port directly to your electronics.
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Acroname USB Serial Interface Connector $21.00
USB to Serial convertor mounted on a small USB connector. This item may be used to connect your TTL level serial electronics directly to your computer's USB port.
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Devantech USB to I2C Interface Module $32.00
The USB-I2C module provides a complete interface between your PC and any sensors or devices that communicate over I2C bus.
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USB 2.0 Connection Cable, Type A-to-B $2.00
Certified USB 2.0 compliant USB cable. USB "A" type male connector on one end, USB "B" type male connector on the other. Two meters long.
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