Description
This is a motor shield for Arduino that will control two DC motors. Based on the L298 H-bridge, the Ardumoto can drive up to 2 amps per channel. The board takes its power from the same Vin line as the Arduino board, includes blue and yellow LEDs to indicate active direction, and all driver lines are diode protected from back EMF.
The new version of this shield allows for either 3.3 or 5v logic, a separate and more robust VIN connection, and the PWM input has moved to pin 3. Control for motor attached to OUT1/2 is connected to digital line 12 (direction A) and digital line 3 (PWM A). Control for motor attached to OUT3/4 is connected to digital line 13 (direction B) and digital line 11 (PWM B).
Features:Â
- Based on L298P H-bridge chipset;
- All driver cable has anti-electromotive protection diode;
- Onboard external motor driver power supply terminal, supports 3.3V or 5V logic level
- Onboard 4 blue and yellow LED indicate driver direction and speed;
- Ardumoto can drive current up to 2A per channel;
- 4 I/O ports;
- Supports the latest Arduino UNO, Arduino Mega 2560;
Specification
- The Logic Control Voltage: 4.5~5.5V
- Motor Supply Voltage: 6~15V
- Max Drive Current: 2A
- Maximum Power Dissipation: 25W (T = 75 °C)
- Operating Temperature: -25 °C~ +130 °C
- Output Duty Range: 0%~100%
Pin description
Default Pin | Alternate Pin | Ardumoto Shield Pin Label | Notes |
---|---|---|---|
2 | 8 | DIR A | A digital signal to control the rotation direction of motor A (e.g., HIGH drives current from output 4 to 3). |
3 | 9 | PWM A | A PWM signal to control the speed of motor B. 0=off, 255=max speed. |
4 | 7 | DIR B | A digital signal to control the rotation direction of motor A (e.g., HIGH drives current from output 2 to 1). |
11 | 10 | PWM B | A PWM signal to control the speed of motor B. 0=off, 255=max speed. |
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