Cana Kit 50A Digital Motor Speed Controller with LCD Readout

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Cana Kit 50A Digital Motor Speed Controller with LCD Readout
by Cana Kit

New!: $77.90 $74.95 (as of 12/31/2012 15:32 PST)

Motor Speed Controllers

Control the speed of a DC motor without sacrificing torque. This Pulse-Width-Modulation (PWM) DC motor controller can provide up to a maximum continuous current of 50A to your DC motor or other DC load thanks to a digital microcontroller based (PIC) design and highly efficient High-Power 202A MOSFET for cooler operation.An optional LCD module (LCD1133) is also available that will precisely indicate the currently set frequency and duty cycle for accurate control of the PWM signal.The controller has two modes of operation: Fixed or Variable frequency. The fixed frequency mode of operation runs the controller at 100 Hz. In the variable frequency mode of operation, the frequency is adjustable from 244 Hz to 3.125 KHz. Duty cycle is fully adjustable from 0% to 100% in both modes.The controller also offers built-in soft-start feature that greatly reduces the mechanical stress on the motor as well as the electrodynamic stress on the attached cables and battery therefore extending the life span of the whole system. When power is connected to the circuit, the duty cycle will start from 0% and go up to the preset value in about 1 to 1.5 seconds.A 12V DC fan is included with the motor controller for robust reliable continued operation under heavy loads. Please note that DC fan is only designed to work with a supply voltage of up to 12V DC. For higher voltage operation, the DC fan will need to be replaced accordingly.

• Rank: #36525 in BISS
• Brand: Cana Kit
• Dimensions: 1.00 pounds

Digital 7A Bidirectional DC Motor Speed Controller - Preassembled

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Digital 7A Bidirectional DC Motor Speed Controller - Preassembled
by CANA-KIT

New!: $39.95 (as of 12/31/2012 06:02 PST)

Motor Speed Controllers

This unique bidirectional DC motor speed controller is based around using a Microchip PIC Microcontroller at the heart of the circuit controlling a Full H-Bridge Power stage using four high-power efficient MOSFETs. The controller allows controlling both the Speed and Direction of a DC motor using a Pulse-Width-Modulated (PWM) DC voltage with a Duty Cycle fully adjustable from 0 to 100% (both Positive and Negative DC output). It can can provide up to a maximum continuous current of about 7A out of the box, and up to 10A to 15A with the addition of an optional fan and reinforcement of PCB tracks. Traditionally, switches are used to reverse the polarity of the voltage applied to a DC motor in order to change the rotation direction. However, this method requires use of DPDT switches and causes the voltage applied to the motor to suddenly change from full positive to full negative. The sudden change while the motor is spinning leads to a high level of mechanical stress on the motor as well as high current surges that can cause damage to any electronics in the path. Using a Full H-Bridge circuit, the solid-state design of this motor speed controller does not use any mechanical switches and allows the control of both speed and direction through a single potentiometer. At its center position, the motor will be forced to stop (i.e. it brakes). Turning the potentiometer clockwise will cause the motor to start spinning slowly in the positive direction, with increasing speed up to the maximum supply voltage at itâ?TMs maximum position. Turning the potentiometer in the counter-clockwise direction will cause the motor to spin in the reverse direction, again starting slowly up to a maximum negative supply voltage. Note that in itâ?TMs center position, the motor will actually brake (motor terminals will be grounded) forcing the motor to stop rather than be in a â??floatingâ? or coasting position.

• Rank: #279122 in Single Detail Page Misc
• Brand: CANA-KIT
• Model: UK1125

SainSmart Sensor Shield Digital Analog Module V5 for Arduino UNO MEGA Duemilanove

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SainSmart Sensor Shield Digital Analog Module V5 for Arduino UNO MEGA Duemilanove
by SainSmart

New!: $12.96 (as of 12/29/2012 03:56 PST)
3 Used! | New! from $10.95 (as of 12/29/2012 03:56 PST)

Motor Speed Controllers

The SainSmart Sensor Shield V5 (new version) has the COM and I2C (IIC) ports separated,so that both ports can be utilized at the same time to increase the possibilities of use.

Sensor Shield for Arduino allows you to connect to various modules like sensors, servos, relays, buttons, potentiometers and so on.Just plug & play.Each functional module has buckled port with VCC, GND and Output, which has corresponding port on the Sensor Shield, connected with a plain 2.54mm dual-female cable you may start playing already. Buckled brick cables are like cement for bricks, make the connections easier, securer and more professional.

• Rank: #2002 in Personal Computers
• Brand: SainSmart

• Buckled Analog Port:Handy, solid connection to 6 Analog inputs with VCC/GND
• Digital IO port:13 ports prepared to digital modules or servos
• Analog IO Port:2.54 grid male pin header connections
• Buckled Communication Port:Selectable between I2C and UART