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Stepper Motor: Unipolar/Bipolar, 200 Steps/Rev, 4248mm, 4V, 1.2 A/Phase, 1200

Size: 42.3 mm square × 48 mm, not including the shaft (NEMA 17) Weight: 350 g (13 oz) Shaft diameter: 5 mm “D” Steps per revolution: 200 Current rating: 1.2 A per coil Voltage rating: 4 V Resistance: 3.3 Ω per coil Holding torque: 3.2 kg-cm (44 oz-in) Inductance: 2.8 mH per coil Lead length: 30 cm (12″) Output shaft supported by two ball bearings NEMA 17 size

OSEPP Stepper Motor & Driver, STEPD-01

100% Arduino Compatible ULN2003A driver chip controls unipolar & bipolar stepper motors

VELLEMAN 5VDC Stepper Motor with ULN2003 Driver Board, VMA401

LED step indicators included: 5 V stepper motor ULN2003 controller module Cable Specifications: Operating Voltage: 5 VDC Steps / revolution: 64 Controller: ULN2003 motor diameter: 28 mm Reduction ratio: 1:64 number of phases: 4 dimensions: 35 x 32 x 10 mm

Stepper Motor: Bipolar, 200 Steps/Rev, 2832mm, 3.8V, 0.67 A/Phase, 1205 POLO

Size: 28 mm square × 32 mm, not including the shaft (NEMA 11) Weight: 110 g (4 oz) Shaft diameter: 5 mm “D” Steps per revolution: 200 Current rating: 670 mA per coil Voltage rating: 3.8 V Resistance: 5.6 Ω per coil Holding torque: 600 g-cm (8.3 oz-in) Inductance: 4.2 mH per coil Lead length: 30 cm (12″) Output shaft supported by two ball bearings

POLOLU Stepper Motor: Bipolar, 200 Steps/Rev, 2030mm, 3.9V, 0.6 A/Phase, 1204

Size: 20 mm square × 30 mm, not including the shaft (NEMA 8) Weight: 60 g (2 oz) Shaft diameter: 4 mm “D” Steps per revolution: 200 Current rating: 600 mA per coil Voltage rating: 3.9 V Resistance: 6.5 Ω per coil Holding torque: 180 g-cm (2.5 oz-in) Inductance: 1.7 mH per coil Lead length: 30 cm (12″) Output shaft supported by two ball bearings NEMA 8

OSEPP Motor & Servo Shield, SCSHD-01

Mate with Arduino and Arduino compatible boards Provides connectors to support 2 servos. Servo power supply can be configured to source from the servo power terminal block or from the Arduinos 5V pin. Support up to 4 bi-directional DC motors with individual 8-bit speed selection, and up to 2 stepper motors (unipolar or bipolar) with single coil, double coil or interleaved stepping. Motor power supply can be configured to source from the motor power terminal block or from the Arduinos VIN pin. Support motors operating between 4.5V to 25V DC. Includes two L293D Quad H-Bridges chipset that can provide 0.6A per bridge (1.2A peak) with thermal shutdown protection, internal kickback protection diodes. Provides DIP sockets to support other pin compatible motor bridge chipset. Integrated pull down resistor to keep motor disable during start up. Individual LED indicator for motor power supply state and servo power supply state. Brings out the Arduinos reset button to the top of the shield

VELLEMAN L293D Motor Drive Expansion Shield for Arduino, VMA207

Two L293D Motor driver chips Four H-Bridges 0.6 A per bridge (1.2 A peak) Thermal shutdown protection Internal kickback protection diodes Up to 4 bi-directional DC motors Up to 2 stepper motors Pull down resistors to keep motors disabled during power-up Separate logic and motor power connections Terminal block connectors for motors and power motor voltages from 4.5 VDC to 16 VDC 2 connections for 5 V hobby servos

VELLEMAN TB6560 Stepper Motor Drive Board, VMA333

6N137 high-speed OptoCouple to ensure high speed without losing steps for 42,57,86 Stepper within 3A  2/4 -phase / 4 wire / 6 wire stepper motor automatic half-decay excitation mode: synchronizing, half step, 1/8 step, 1/16 step current level is adjustable to meet your application needs large heat sink for good heat dissipation overheating and over-current protection circuit to ensure optimal performance operating voltage: 10 to 35 VDC rated output current: ± 3 A - peak 3.5 A dimensions: 50 x 75 x 35 mm weight: 80 g

NTE 8-Channel Darlington Array/Driver ULN2803 Equivalent, 2018

Ideally suited for interfacing between low−level digital logic circuitry and high−power peripheral loads High−voltage, high−current Darlington arrays in an 18−Lead DIP type package and feature peak load current ratings to 600mA for each of the eight drivers in each device Typical loads include relays, solenoids, stepping motors, multiplexed LED and incadescent displays, and heaters

VELLEMAN Dual H Bridge DC Stepper Motor Controller Board L298N, VMA409

driver: L298N driver power supply: + 5 V to + 35 V driver output current (max.): 2A logic power output Vss: +5 V to +7 V (internal supply +5 V) logic current: 0-36 mA controlling level: low -0.3 V to 1.5 V, high: 2.3 V-Vss enable signal level: low -0.3 V to 1.5 V, high: 2.3 V-Vss max. current: 25 W working temperature: -13 °F to + 266°F (-25C to +130 °C) dimensions: 2.72" x 2.2" x 1.42" (69 x 56 x 36 mm)

VELLEMAN DRV8825 Stepper Driver Board for K8400, VM8400DB

simple step and direction control interface six different step resolutions: full-step, half-step, 1/4-step, 1/8-step, 1/16-step, and 1/32-step current adjust trimmer can interface directly with 3.3 V and 5 V systems over-temperature thermal shutdown, over-current shutdown and under-voltage lockout short-to-ground and shorted-load protection minimum operating voltage: 8.2 V maximum operating voltage: 45 V continuous current per phase: 1.5 A maximum current per phase: 2.2 A (with cooling) minimum logic voltage: 2.5 V maximum logic voltage: 5.25 V dimensions: 20 x 15 mm (0.8" x 0.6 ")

OSEPP Motor Driver Module, MTD-01

100% Arduino Compatible L298 dual h bridge driver Reverse motor polarity (motor direction)

HITEC HSR-2645CR Servo Continuous Rotation, HSR-2645CR

While regular servos that get modified to continuous rotation tend to be difficult to control the speed on, the HSR-2645CR circuit was designed from the factory to drive the servo smoothly and with fine-control over the speed Since the HSR-2645CR servo is digital, it's able to be tuned using a Hitec servo programmer The programmable parameters allow you to tailor the servo to best-fit your application Excellent for compact sliders, winch mechanisms, small panning devices and wheel-drives on robots

HITEC HSR-1425CR Servo Continuous Rotation, HSR-1425CR

The HSR-1425CR is the continuous rotation version of the HS-425HB The speed is proportional meaning that the further the PWM signal deviates from the idle signal (approximately 1500usec) the faster the servo will rotate If you're looking for the smoothest continuous rotation servo, be sure to check out the HSR-2645CR servo

HITEC HS-805BB Mega Giant Scale Servo, HS-805BB

Known as the monster servo, the HS-805BB uses a heavy duty nylon gear train and a strong 10mm, 15 tooth output shaft to generate 343 oz./in. of torque that will easily move just about any large plane, car, truck or boat!

HITEC HS-625MG High Speed, Metal Gear Premium Sport Servo, HS-625MG

The powerful high speed HS-625MG is a perfect choice for those applications requiring a fast and strong standard size servo Utilizing our M/P and metal gear train technology A fantastic sport servo for larger planes and 10th scale sport vehicles

HITEC HS-55 Economy Feather Servo Sub-Micro, HS-55

The HS-55 set the standard for affordable performance, offering precision components that have been engineered to provide long lasting trouble free service! Featured in a hundred model aircraft reviews worldwide Best choice when it comes to controlling smaller Electrics and Park Flyers

HITEC HS-425BB Deluxe Ball Bearing Standard Servo, HS-425BB

The HS-425BB is offered with dual ball bearings, impact resin gears and high performance circuitry As one of Hitec's longest running production servos, it has proven to be a durable and dependable product year after year

HITEC HS-422 Deluxe Standard Servo, HS-422

The HS-422 is one of the most durable and reliable servos Hitec has ever offered With its dual iron-oilite bushings, high impact resin gear train and high performance circuitry Features excellent centering and resolution

HITEC HS-646WP High Voltage, High Torque, Analog Waterproof Servo, HS-646WP

Hitec's waterproof servos have what it takes to keep your radio control vehicle, airplane or robot watertight! With high torque, dual ball bearings and metal gears, our analog waterproof servos have the industrys first IP67* rating ranking them among the most durable and reliable servos for wet conditions Whether you are manning your power boat, bashing in the mud, directing your underwater robot, or water landing your 25% plane, the HS-646WP will dependably keep your mind at ease

HITEC HS-311 Standard Economy Servo, HS-311

The HS-311 sport servo provides the novice modeler all the performance and reliability you would expect to find in a more expensive servo Combined with precise resin gears and SMT circuitry

VELLEMAN Mini Analog Servo Motor, VMA600

size: 21.5 x 12 x 22.7 mm voltage: 4.8 to 6 VDC weight: 9 g speed: 0.09 sec. for 60° at 6 V torque: 1.4 at 6 V working temperature: -15° C to 50 °C connection type: 3 wires: brown (gnd) - red (+) - orange (signal) rotation: 180°

VELLEMAN 270 Robot Digital Double Shaft Servo Kit, VMA601

operating speed (at no load): 0.14 sec/ 60° at 7.2 V running current (at no load): 100 mA at 7.2 V stall torque (at lock): 15 kg at 7.2 V stall current (at lock): 1.5 A at 7.2 V idle current (at stopped): 5 mA operating frequency: 50 - 330 Hz operating angle: 90°/135° (from 1000 to 2000 usec) Neutral position: 1500 usec dead band width: 3 usec Rotating direction: Counter clockwise (from 1000 to 2000 usec) Pulse width range: From 500 to 2500 usec overall dimension: 40 x 20 x 40.5 mm weight: 64 g connector wire gauge: #28 PVC connector wire length: 320 ± 5 mm horn gear spline: 25T/5.80 reduction ratio: 310:1 operating temperature range: -10°C - 50°C operating voltage: 5 V - 7.2 V connection: orange = PWM, red = VCC , brown = GND

HITEC HS-225BB Mighty Mini Servo, HS-225BB

The analog HS-225BB represents a good value with performance that rivals other larger and more expensive servos Ideal for applications that call for a small, lightweight, high speed, high torque servo Features a top ball bearing and is built with state-of-the-art SMT technology

HITEC HS-645MG High Torque, Metal Gear Premium Sport Servo, HS-645MG

The powerful HS-645MG is one of Hitecs most popular servos Its the perfect choice for those larger sport planes or monster trucks and buggies requiring a durable high torque servo Featuring their unique M/P and metal gear train technology Offers one of the strongest gear trains available in any servo

TAMIYA 4-Speed Worm Gearbox Kit, 72008

This versatile, high-efficiency gearbox lets you build one of the following gear ratios: 11.6:1, 29.8:1, 76.5:1, 196.7:1, 505.9:1, and 1300.9:1.

TAMIYA 6-Speed Gearbox Kit, 72005

This versatile, high-efficiency gearbox lets you build one of the following gear ratios: 11.6:1, 29.8:1, 76.5:1, 196.7:1, 505.9:1, and 1300.9:1.