This is a two-in-one PIC programmer and Experiment board for 40 pin PIC Micro devices.It easy to developt your program without insert/remove PIC micro.You just programming your code and then download to this board without any programmer .This board interface with parallel port.This board supports for PIC16F,PIC18F 40 pin devices .
PIC16F, PIC18F Development Boards pcb schematics alternative link:
Microchip PIC16F, PIC18F Development Boards
Password: 320volt.com
Published: 2008/06/05 Tags: pic development board
AT89C51 L293D DC Motor with Door Control Circuit
The main purpose of the circuit is to control the gate of the house. This DC motor and provided with two limit switches is provided by mechanical parts. The two buttons open and close the circuit inside is available. Sent to the ends of the drive motor integrated into 1 and 0 knowledge engine is turning left or right.
AT89C51RD2 switches are connected in series to the output port. As soon as the door closed one of the key information by sending port is disconnected. When the other button is pressed, this time the information is sent to one of the other ports and the engine returns to the other side and this time it is connected to the switch port opens.
L293D DC Motor Door Control