PIC16F84 + HD44780 based LCD Test
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Uploaded by Spaceboardo on Jan 12, 2011
This video show demonstration of programmed PIC 16F84 microcontroller for testing Hitachi based HD44780 or compatible LCD.
Program uses 74LS138 based keybord with 8 SPST switches and can be easy modified to use more switches (e.g. 32, 64 or so).
These 8 switches are used for actions like printing characters from ASCII table, moving cursor right/left, clearing screen and cursor to home position, shifting display right or left and changing leters form small to upper or going to nubers if you press and hold last taster for 2 sec. Many options can be implemented. Thanks for watching, cheers...
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Uploader Comments (Spaceboardo)
All Comments (5)
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I would like to take a look at the code you used for the configuration of the LCD. Thank you
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Well done.
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what program you use? can you send me the program?
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@RobertoRicalday No problem, you have my contact email written on display, care look at the video and you will find it. Then we can discuss about LCD init code. Cheers
Spaceboardo 1 month ago
Code for this particular PIC (16F84) is written in Microchip's MPLAB IDE, and this software is free and available from Microchip's website. I can send you the code, but it is specially written for circuit described above and to modify this code for your needs you need to know MPASM (Microchip assembler based language). Also you need to know how 8-bit HD44780 based LCD's works and have a little bit of basic electronics knowledge. Cheers
Spaceboardo 7 months ago