P89V51RD2 robotics board

Introduction

P89V51RD2 robotics board is a low cost development board designed for robotics hobbyists and enthusiasts. The board is most ideal for developing robotic applications which includes Line Follower, Adaptive cruise control, Autonomous Navigator etc. As mentioned earlier the board has the legacy P89V51RD2 microcontroller running on 11.0592MHz crystal oscillator. The onboard peripherals include L293D, 600mA DC motor driver with position and velocity control, RS-232 to TTL logic converter, 16X2 LCD and an 8-bit/8 Channel Analog to Digital converter (ADC0808). For further expansion the rest of the on-chip peripherals and microcontroller pins can be accessed through open pads. It has reverse polarity protection and 7805 voltage regulator with the heat sink for high load handling capacity. The PCB is a high quality double sided PTH type for giving extra strength to the connectors.

Specification

• Microcontroller: P89V51RD2
• Crystal: 11.0592MHz
• Programming: Using Flash Magic or any other software via serial port
• Operating Supply: 9V to 15V DC
• Regulated 5V, 500mA output for external load
• 8 channel Analog inputs using ADC0808 Analog to Digital Converter
• Potentiometer for Analog input
• 16x2 Character alphanumeric LCD interface
• SPI port output
• Reconfigurable three 8 bit I/O ports
• Motor Driver: L293D dual motor driver with 600mA current capacity per motor
• Four Motor output status display LEDs
• Velocity control: PWM (Pulse Width Modulation)
• RS232 serial interface
• Switches: Interrupt, General input and Reset
• Buzzer
• 5V 7805 voltage regulator with heat sink for high load handling

Kit contains

• P89V51RD2 Robot Board
• RS232 serial cable
• 1-Documentation CD

Board overview

List of experiments in the documentation CD (development environment: KEIL)

• IO operation Buzzer Beep
• IO operation Motor direction control
• Position control using Interrupt control
• PWM using PCA
• Timer as delay
• LCD interfacing string display
• LCD interfacing data array display
• ADC data display on LCD
• Serial communication echo

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