Components Tester with AT89C52

This Project Components tester can be used to check the electronic components such us Diode, Transistor, Capacitor, IC555, IC741 and Continuity. The whole circuit was controlled by the Microcontroller AT89C52. The circuit has an LCD display it was used to display the Text messages over it. The system will display the conditions of the device on the LCD display.
Components Tester with AT89C52 - schematic

The Microcontroller used in this project was an 8 bit microcontroller AT89C52 it has a program memory of 8 Kilobytes. For checking the IC555 an external circuit was configured as astable multivibrator and for checking IC741 an external circuit was connect

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