Usage: H-Bridge's are typically used in controlling motors speed and direction, but can be used for other projects such as driving the brightness of certain lighting projects such as high powered LED arrays. How it works: An H-Bridge is a circuit that can drive a current in either polarity and be controlled by *Pulse Width Modulation (PWM). * Pulse Width Modulation is a means in controlling the duration of an electronic pulse. In motors try to imagine the brush as a water wheel and electrons as a the flowing droplets of water.

The voltage would be the water flowing over the wheel at a constant rate, the more water flowing the higher the voltage. Motors are rated at certain voltages and can be damaged if the voltage is applied to heavily or if it is dropped quickly to slow the motor down. Take the water wheel analogy and think of the water hitting it in pulses but at a constant flow. The longer the pulses the faster the wheel will turn, the shorter the pulses, the slower the water wheel will turn.

Motors will last much longer and be more reliable if controlled through PWM. The Arduino code sketch is pretty straight forward. Since there isn’t a library for the L298N Dual H-Bridge Motor Controller you just have to declare which pins the controller is hooked to.

The “int dir(number)Pin(letter)”‘ pins can be connected to any available digital pin you have available, as long as you declare the correct pin in your sketch. This makes the L298N Dual H-Bridge Motor Controller very versatile if your project is using a lot of Arduino pins. The int “speedPin(letter)” pins need to be connected to a PWM pin on the Arduino if you want to enable speed control through PWM. As a quick cheat I have included a list of PWM pins for the main two types of Arduino's I use: • AT MEGA – PWM: 2 to 13 and 44 to 46. Provide 8-bit PWM output with the analogWrite() function. • UNO – PWM: 3, 5, 6, 9, 10, and 11. Provide 8-bit PWM output with the analogWrite() function.

The L298 is an integrated monolithic circuit in a 15-lead Multiwatt and PowerSO20 packages. It is a high voltage. The STSPIN220 stepper motor driver. The Ltd ® The L298 is a strong, useful dual-motor driver IC but it’s tough to use by itself. The Solarbotics Compact L298 Motor Driver Kit tames this beast, and.

This code example I wrote to allow a serial monitor program such as Putty to control the L298N Dual H-Bridge Motor Controller via a keyboard with key presses. Controls: Key. Motor 1 Forward 2.. Motor 1 Stop 3.. Motor 1 Reverse 4.. Motor 2 Forward 5..

Motor 2 Stop 6.. Motor 2 Reverse Code: • Fixed the formatting issues (): Download the attached L298N_Dual_H_Bridge_Keyboard_Control_Reichenstein7.ino Alternate Download: Attachments •.

H Bridge Motor Control Given below is an H bridge motor control and driver circuit using IC L298 Description: A bidirectional DC motor control circuit is shown here. The circuit is based on the IC L298 from ST Microelectronics. L298 is a dual full bridge driver that has a wide operating voltage range and can handle load currents up to 3A. The IC also features low saturation voltage and over temperature protection. In the circuit diode D1 to D4 are protection diodes. Capacitor C2 is the logic power supply filter and capacitor C2 is the supply voltage filter.

The state of the motor will depend on the logic level of the pins 10, 11, 12 and it is described in the table shown below the circuit diagram. Circuit diagram of H bridge motor controller. Fifa 14 Crack V5 3dm.