// Run at half speed analogWrite(M1_SPEED, 128); delay(2000);
The shield uses a 74HCT595 serial-to-parallel shift register to expand the Arduino pins. The shift register controls the direction lines of the L293D chips, while the Arduino PWM pins control the motor speeds. Shift Register Clock (CLK) Digital Pin 7: Shift Register Latch (STR) Digital Pin 8: Shift Register Data (SER) Digital Pin 12: Shift Register Output Enable (OE)
Connects or disconnects the Arduino's onboard power supply from the motor power rail. Jumper On: Shield draws power from the Arduino barrel jack. hw 130 motor control shield for arduino datasheet free
In addition to the datasheet, there are many online resources available that provide tutorials, examples, and projects for the HW-130 Motor Control Shield. These resources can help users get started with the shield and explore its full potential.
Motors draw significant current and create electrical noise. Always remove the EXT_PWR jumper and use a separate, dedicated battery pack or power supply for the motor terminal block when using heavy loads. Thermal Management Jumper On: Shield draws power from the Arduino barrel jack
To ensure safe operation, always wire your components before applying power.
For more information on the HW-130 Motor Control Shield, including tutorials, examples, and projects, visit the following websites: Motors draw significant current and create electrical noise
AF_DCMotor motor1(1); AF_DCMotor motor2(2);
| Parameter | Specification | | :--- | :--- | | | L293D (Dual H-Bridge) | | Motor Supply Voltage | 4.5V to 25V DC | | Logic Supply Voltage | 5V (from Arduino) | | Continuous Current per Channel | 600mA | | Peak Current per Channel | 1.2A | | DC Motors | Up to 4 bi-directional | | Stepper Motors | Up to 2 (unipolar or bipolar) | | Servo Motors | Up to 2 (5V) | | Protection Features | Thermal shutdown, pull-down resistors, internal flyback diodes | | Compatibility | Arduino Uno, Mega, Due, etc. |
Insert the two wires of your DC motor into terminal block M1 . Repeat on M2 , M3 , or M4 for additional motors [1].
However, the specific pin mapping isn't always obvious if you don't have the schematic. If you are looking for the official , I’ve uploaded a free copy for reference.