This board is the key tool to visualize your microcontroller output. It is so simple and easy to build.
In this project we use seven segment to visualize the microcontroller outputs of ports. By usning the cream shells we can interface any 8051 based project board.
Port 3 of 8051 in this generic board is bit accessible so that you can use these for multipurpose.
PCB layout of this board is shown below.
PCB layout with top silk is shown below for better understanding of component placement.
3D view of these components is shown.
In this view all 20 pin IC's are buffers 74LS245.
Resistor bank of 470(ohm) used with LED BAR.
To pullup port-0 of 8051 we use another resistor bank of 10k.
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