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3081-POLOLU Magnetic Encoder Pair Kit for Micro Metal Gearmotors, 12 CPR, 2.7-18V (HPCB compatible)
US$12.53
Add quadrature encoders to your micro metal gearmotors (extended back shaft version required) with this kit that uses a magnetic disc and hall effect sensors to provide 12 counts per revolution of the motor shaft. The sensors operate from 2.7 V to 18 V and provide digital outputs that can be connected directly to a microcontroller or other digital circuit. This module is compatible with all of the dual-shaft micro metal gearmotors we carry, including the HPCB versions.
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2590-POLOLU Optical Encoder Pair Kit for Micro Metal Gearmotors, 5V
US$13.58
Add quadrature encoders to your LP, MP, or HP micro metal gearmotors (extended back shaft version required) with this kit consisting of two sensor boards, two 3-tooth encoder wheels, and two 5-tooth encoder wheels. The installed system does not exceed the 12 mm × 10 mm cross section of the motors and extends only 5 mm beyond the plastic motor end cap. The 3-tooth wheel provides 12 counts per revolution; using the 5-tooth wheel yields 20 counts per revolution. This version is intended for use at 5 V.
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2591-POLOLU Optical Encoder Pair Kit for Micro Metal Gearmotors, 3.3V
US$13.58
Add quadrature encoders to your LP, MP, or HP micro metal gearmotors (extended back shaft version required) with this kit consisting of two sensor boards, two 3-tooth encoder wheels, and two 5-tooth encoder wheels. The installed system does not exceed the 12 mm × 10 mm cross section of the motors and extends only 5 mm beyond the plastic motor end cap. The 3-tooth wheel provides 12 counts per revolution; using the 5-tooth wheel yields 20 counts per revolution. This version is intended for use at 3.3 V.
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PWM DC Motor Speed Controller Module with Digital Display 6V-30V Max 8A
US$18.15
This product allows you to connect any DC motor from 6v to 30v and offers a continuous current of 8A max if provided, from your power supply. Using the attached potentiometer you can adjust the duty cycle of the power provided to the motor. The display will offer a numerical percentage of the duty cycle the potentiometer is currently set at. The range of the potentiometer will offer a duty cycle from 0 to 100%.
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MOT-320 Gear Motor with Wheel Combo
US$4.89
90 degree Plastic Gear Motor with wheel for your 2WD or 4WD robot cars.
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MG996R Metal Gear Servo Motor 180 Degrees
US$12.53
High value, general purpose, standard size servo with high torque. Easily used with the Arduino Servo library.
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MOT-500 DC Hobby Motor
US$1.19
This DC micro motor is perfect for students and hobbyists to demonstrate the functioning of a DC motor.
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2825-POLOLU 70:1 150RPM Metal Gearmotor 37Dx70L mm with 64 CPR Encoder
US$63.47
This gearmotor is a powerful 12V brushed DC motor with a 70:1 metal gearbox and an integrated quadrature encoder that provides a resolution of 64 counts per revolution of the motor shaft, which corresponds to4480 counts per revolution of the gearbox’s output shaft. These units have a 0.61"-long, 6 mm-diameter D-shaped output shaft.
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BUZ-125 Passive Buzzer
US$0.97
This passive buzzer will produce audio only when a AC signal is supplied to the device. When you apply a DC voltage, the buzzer will not generate a tone since it will require a sinusoidal wave. You can achieve this buy supply either a sine wave from a function generator or create PWM waves using a microcontroller or 555 timer. If you are looking for buzzers that make noise when a DC signal is supplied we highly recommend looking for active buzzers.
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SRD-5VDC-SL-C RELAY 5VDC 10A SPST
US$2.09
Single Pole Single Throw Relay. Coil voltage: 5VDC. Current rating: 10A/125VAC, 10A/250VDC, 10A/30VDC. Approvals: UL, CUL, TUV. Dimensions: 18.8x15x15.3mm (LxWxH).
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KEY-SW Key Lock Switch SPST
US$13.33
SPST, Key removable from 2 positions. Used in computer locking and other security systems. Features: All keys are alike, Mounting hole: 0.75 inches, 0.25" quick connect terminal, Ratings: 125VAC @ 6A., Length: 1.48 inches, Includes: Lock switch, 2 keys, nut and washer.
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RM-16 Channel Relay Module, 5V
US$27.93
This relay module is perfect for robotics or appliance control. Can be easily controlled by any standard microcontroller such as Arduino or Raspberry Pi. Total of 16 relays rated at 10A each. Each relay has a LED to indicate when it is picked. Each relay is opto-coupled for protection.
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KN-9 Aluminium Silver audio knob
US$0.92
Small silver aluminium knob, common on audio equipment. They’re 15mm wide and 17mm high, and a plastic fitting inside can fit a standard audio potentiometer or rotary encoder shaft.
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KN-7 Aluminium Black audio knob
US$0.92
Small black aluminium knob, common on audio equipment. They’re 15mm wide and 17mm high, and a plastic fitting inside can fit a standard audio potentiometer or rotary encoder shaft.
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MOT-21 66K RPM Micro Coreless DC Motor
US$2.79
66K or 66,000 RPM is a very high speed for a tiny product like this. The speed often reminds people of a dentist drill tool when heard. The speed isn’t high enough to start making holes into objects but it is recommended for small RC Planes that require high speeds.
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