Discussion in "General help Guidance and Discussion" started by    Rasengan    Mar 18, 2010.
Thu Mar 18 2010, 03:51 PM
Hi friends.I need a 8051 Development Board Circuit diagram especially 89020 one.I have this Board because of a workshop.
I need this circuit to advance its use.This board is
Compatible with most of the 8051 and 8052 series of microcontroller
Available with AT89s51, AT89s52 or P89v51RD2 microcontroller
On board motor driver for driving 4 DC motors or 2 stepper motors
LCD interface
PC interface through UART
8 channel ADC converter
11.0592 MHz crystal
Exposed 8 channel 3 I/O port for general-purpose application
Five tact switches for external input, reset and interrupt
Four test LEDs for status and debugging purpose
Exposed ISP pins for Programming
Programming can be done through serial port for P89v51rd2 micro controller
On board regulated power supply

Please reply
Thu Mar 18 2010, 08:30 PM
I think you can make this on your own if you know all this. And most probably the vendor should have provided circuit with the dev board otherwise its of no use.
Fri Mar 19 2010, 03:12 PM
See this image


Check the above the link
Can u tell me whether this is a general board whose circuit may be available on net?
Sat Mar 20 2010, 11:15 AM
Hello Rasendan!

V nice idea....to make Development board it is no difficult schematic is attached
Hope this will help u dont leak it
Sat Mar 20 2010, 03:32 PM
Thanks for the schematic,coolmirza143.
I wanted to know how the microcontroller is connected to Motor driver IC.Do u have circuit for that too?I need it for line follower Robot.
Mon Mar 22 2010, 10:08 AM
L293D (h-bridge motor driver) is very easy to use. follow the link


check DC motor tutorial for more information.

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Mon Mar 19 2018, 07:33 PM
sorry bedo.. maybe next time
Sun Mar 18 2018, 07:48 AM
Mourya Manojkumar
Please send me circuit diagram and PCB diagram
Thu Mar 01 2018, 05:49 AM
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i need of it
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Join up.. and post your problem
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i needs help for my project
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can i join you guys
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Hi Dave. Good to see you.
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