L293D MOTOR DRIVER CIRCUIT BOARD SOFTWARE

In other industries, the robot can also do simple tasks for people, save labor, and improve social work efficiency. The main purpose of the mobile nurse robot is to treat patients with medical staff, try to avoid contact with germs, reduce germ infection, reduce medical staff's concerns, and replace medical staff to do some simple tasks. Circuit Design 4.1 Introduction to Mobile Nurse Robot The VCC1 port isolated from the VCC2 port can provide logic inputs to reduce power consumption. When the EN pin is set to high level, the motor corresponding to it is in the enabled state, thereby activating the motor control output. The motor drive enable is controlled by pins 1 and 2EN to control motor 1, and pins 3 and 4EN to control motor 2. The pins 1Y, 2Y, 3Y, and 4Y are motor control output terminals, which are used to directly control the actions of the motor.ДЄll inputs of the device are TTL compatible, and its output adopts a 'totem pole' drive circuit composed of a Darlington transistor receiver and a pseudo Darlington source. Pins 1A, 2A, 3A, and 4A are control signal input terminals, which are used to control the working state of the motor. The pin arrangement of L293D is shown in Figure 1.

Output Clamp Diodes for Inductive Transient Suppression (L293D).

Peak Output Current 2 A Per Channel (1.2 A for L293D).

Output Current 1 A Per Channel (600 mA for L293D).

Wide Supply-Voltage Range: 4.5 V to 36 V.

L293D MOTOR DRIVER CIRCUIT BOARD SOFTWARE

This device is mainly used to drive inductive loads, such as relays, solenoids, DC or bipolar stepper motors.Д¤.2 Peripheral Circuit Design of Motor Drive DeviceД¤.4 Microcontroller and Its Peripheral Circuit DesignД¤.5 The Design of Power Supply and its Device SelectionД¤.6 Hardware Connection Diagram and Software Design This structure can provide up to 600 mA of current at a voltage of 4.5 V to 36 V.

The device has 4 high-current half-H drive structures. Size: 6.8 cm x 5.5 cm x 2 cm - 2.68 inches x 2.17 inches x 0.79 inches.L293D is a motor control device produced by Texas Instruments. Tested to be compatible with Arduino Mega, Diecimila & Duemilanove. Two external terminal power connectors for separate logic/motor power supply. The pull-down resistor disables the motor during power-up. Up to 2 stepper motors (unipolar or bipolar), single coil, double coil or staggered step.ДЇour H-bridges: Each bridge provides 0.6A (1.2A peak current) and thermal protection and can operate from 4.5V to 36V DC. Up to 4 bi-directional DC motors with individual 8-bit speed selection.

It can drive 4 DC motors or 2 stepping motors or 2 servo motors. The H-bridge is typically a circuit that allows voltage to be applied to the output in either direction, for example, an engine.Дў interface High-resolution dedicated timer for 5V servo connection to Arduino - no jitter.

The L293D is a monolithic integrated, high voltage, high current, 4-channel driver.Д«asically this means that the chip can use a DC motor and a power supply up to 36 volts, that is, some fairly large motors and chips can provide a maximum current of 600 mA per channel, and the L293D chip is also called an H-bridge.

L293d motor driver circuit board