Electromechanical

US$3.15
The wheels have silicone tires and measure 60 mm (2.36″) in diameter. Two additional mounting holes for 4-40 screws make it possible to use the wheel with our universal mounting hubs for 3mm shafts, 4mm shafts, and 5mm shafts.
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US$5.59
FK-UB-001 Aluminum U-shaped Bracket Set For Servo FR0115M
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US$5.59

Applied to FEETECH Servo FR0109M FR0115M SCS09 SCS15. Include: FK-AP-19 (25T) -1PCS, FK-AP-20 -1PCS. Screws: M3*4  -8PCS, M3*6  -1PCS, TP1P 2 * 6 mm -8PCS.

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US$5.23
This handy 2-channel relay interface board can be controlled directly by a wide range of microcontrollers such as Arduino, Raspberry Pi, AVR, PIC, ARM, PLC and etc. Controls up to two 10A/250 VAC devices.
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US$11.78
Super slick hi­torque micro metal motor and wheel combination for DIY Robot Smart Car designers. Just mount a pair of motors to your platform and plug the wheels directly onto the matching D­shaped shafts for a quick start to your robot car project.
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US$12.53
This 3cm x 1.2 cm x 1.5 cm solenoid has a push newton of 0.4N. Normally pulled in, the entire shaft when extended including the nut equates to 18cm. This device can run from 9v – 12v, the body is an open frame design with no housing or mounting brackets.
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US$13.60
This Cabinet Door-Style Solenoid is essentially an electronic door lock. This unit has four threaded screw holes to mount onto any surface securely. When powered with 12v the latch bolt will retract allowing you to open any door that this module is fasten to.
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US$11.60
Relays are the next best things to BJT Transistor switch! Why limit yourself in turning on or off a simple 5v tolerable led using your Micro-Controller, when you can use this relay board to turn on or off your 120VAC home Lights?! The relay specifications allow you to place 30VDC running at max 10 Amps at the input terminals K1 - K4.
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US$1.75

Unlike many other pushbuttons, this switch is 3 amps. Size:20 x 17.5mm / 0.78" x 0.7" (Max. L * D). 3A/125VAC, 12mm mounting hole.

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US$1.75

Unlike many other pushbuttons, this switch is 3 amps. Size:20 x 17.5mm / 0.78" x 0.7" (Max. L * D). 3A/125VAC , 12mm mounting hole.

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US$1.75

Unlike many other pushbuttons, this switch is 10 amps. Size:20 x 17.5mm / 0.78" x 0.7" (Max. L * D). 10A/125VAC,7A/250VAC,(Also works for 12V). 

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US$1.75

Unlike many other pushbuttons, this switch is 3 amps. Size:20 x 17.5mm / 0.78" x 0.7" (Max. L * D). 3A/125VAC  

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US$1.75

Unlike many other pushbuttons, this switch is 3 amps. Size:20 x 17.5mm / 0.78" x 0.7" (Max. L * D). 3A/125VAC, 12mm mounting hole

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US$1.75

Unlike many other pushbuttons, this switch is 3 amps. Size:20 x 17.5mm / 0.78" x 0.7" (Max. L * D). 3A/125VAC, 12mm mounting hole

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US$6.17
Tiny little servo works just like the standard kinds you're used to butsmaller. You can use any servo code, hardware or library to control these servos. Good for beginners who want to make stuff move without building a motor controller with feedback & gear box, especially since it will fit in small places. 2.5KG Torque
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