How To Power And Control A Small Motor - 3V

Batteries can be the easiest way to power small projects. This neat little kit makes a battery box that runs the motor backward and forward, depending on the switch position, with an "off" stop in the middle.	Battery Holder for 2 AA Batteries w/ Reversing Switch from Tamiya Holder for two AA batteries with a built-in DPDT lever switch to provide forward/off/reverse control. The batteries can be connected in series or in parallel. Comes with 8" connecting wire. Catalog number: 20172. Brand: Tamiya. Brand's Part Number: 70150. More Product Details ...     Stock Number Buy Product Title Price Status H02017-01F Battery Holder for 2 AA Batteries w/ Reversing Switch $4.99 In Stock
These are standard black battery boxes.	Battery Holder for 2 AA Batteries from Tinkering Supplies Standard holder for two AA batteries. Comes with 6", 26ga leads. Catalog number: 43026. Brand: Tinkering Supplies. Brand's Part Number: H04302-01Z. More Product Details ...     Stock Number Buy Product Title Price Status H04302-01Z Battery Holder for 2 AA Batteries $2.49 In Stock       Battery Holder for 2 AA Batteries w/ Cover and Switch from Tinkering Supplies Covered holder for two AA batteries with a built-in on/off slide switch. Comes with 6", 26ga leads. Catalog number: 43034. Brand: Tinkering Supplies. Brand's Part Number: H04303-01X. More Product Details ...     Stock Number Buy Product Title Price Status H04303-01X Battery Holder for 2 AA Batteries w/ Cover and Switch $3.49 In Stock
Using wall power can save a fortune in batteries. This transformer runs most 1.5 VDC to 3 VDC at the high end of their design range, providing lots of power with a reasonable motor life. To connect the motor either snip off the power connector to access the wires or build yourself an adapter using 2.1mm Power Jack, PCB mount.	AC Power Adapter 3.3 VDC from Tinkering Supplies "Wallwart" transformer with an output of 3.3VDC and a maximum current output of 1.8A. Its 20" cord is terminated with a standard 2.1mm female power plug. Catalog number: 43802. Brand: Tinkering Supplies. More Product Details ...     Stock Number Buy Product Title Price Status H04380-01V AC Power Adapter 3.3 VDC $16.99 In Stock
If you are controller the motor with a microcontroller, the SN754410NE H-Bridge can easily power two motors of this class. If you are building the circuit on a breadboard the wiring can look like a bowl of spaghetti, but its not that hard and works great. This tutorial provides a wiring map and sample code for use with the Basic Stamp: Motor Control Using the SN754410 Quad Half H-Bridge IC You should find it fairly easy to adapt this example to other microcontrollers.	SN754410NE H-Bridge from Tinkering Supplies Quad Half H-Bridge IC can control the speed of up to 4 motors in one direction or up to 2 motors running in both directions. Each motor can have power requirements of up to 36 volts at 1 amp. Catalog number: 10488. Brand: Tinkering Supplies. Brand's Part Number: H01048-01B. More Product Details ...     Stock Number Buy Product Title Price Status H01048-01B SN754410NE H-Bridge $3.25 In Stock
If you are controlling the motor with a microcontroller, this little kit uses the L293D H-Bridge chip to power a single motor with a neater wiring arrangement.	L293D Secret Motor Driver Electronic Kit from Solarbotics The 'Secret' L293D motor driver kit replaces the guts of a standard servo and turns it into a logic-signal controlled gear motor! The SGS Thompson L293D is configured to provide up to 1.2A and 36V - much higher than what a standard servo electronics are designed for! This kit fits inside a standard servo body, like our SERVO or GM4 clear servo gear motor. The indicator LEDs on the kit also make for a cool lightshow in the clear servo case, or as part of a breadboard-mounted motor driver. Don't want to drive a servo? We don't blame you! Use the 'Secret' Motor Driver to power any gear motor like our GM2 or GM3! Catalog number: 11940. Brand: Solarbotics. Brand's Part Number: KSMD. More Product Details ... This is an electronic kit which you must assemble by soldering.This kit cannot be returned once opened. Click here for our return and warranty policies ...     Stock Number Buy Product Title Price Status H01194-01T L293D Secret Motor Driver Electronic Kit $13.99 In Stock
The best way to control motor speed is with pulsed power, but that can get complicated. Wiring this potentiometer in series with the motor gives you reasonable speed control with maximum simplicity. This 5W can dissipate the heat that results from running the motor at low speeds indefinitely.	Potentiometer 5W, 10 Ohm from Tinkering Supplies This high potentiometer works great as a rheostat for controlling small motors DC like Mabuchi FA-130 Motor. Catalog number: 43836. Brand: Tinkering Supplies. Brand's Part Number: H04383-01M. More Product Details ...     Stock Number Buy Product Title Price Status H04383-01M Potentiometer 5W, 10 Ohm $6.99 In Stock