{"id":60195,"date":"2019-05-23T12:21:11","date_gmt":"2019-05-23T16:21:11","guid":{"rendered":"https:\/\/www.engineersgarage.com\/microcontroller-projects-tf\/interfacing-24x2-lcd-with-microcontroller\/"},"modified":"2023-05-24T12:36:20","modified_gmt":"2023-05-24T16:36:20","slug":"interfacing-24x2-lcd-with-microcontroller","status":"publish","type":"post","link":"https:\/\/www.engineersgarage.com\/interfacing-24x2-lcd-with-microcontroller\/","title":{"rendered":"Interfacing 24×2 lcd with 8051(89c51,89c52) and microchip pic16f877 microcontroller"},"content":{"rendered":"
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In this post i am going to explain how to interface 24×2 lcd with microcontroller. I am going to interface lcd with 8051(89c51,89c52) and Microchip Pic16f877 microcontrollers. 24×2 means 24-Coulombs and 2-Rows. Total characters which we can display on 24×2 lcd  (24×2=48) 48. 24 Characters on each row. Interfacing 24×2 lcd with microcontroller is same as we interface other character lcds with microcontrollers. 24×2 lcds are controlled by hd44780 controller, the same controller used to control 8×1,16×2,20×2 lcds. Commands to initialize 24×2 lcd are same used to initialize other character lcds. Registers of lcd are also same. Data read and write process is also same.<\/font><\/div>\n
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About Lcd<\/p>\n

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Lcd which i am using is from Samsung. Its number is unknown. Only a number <\/font>UC24202, <\/font><\/span>GNAR4PA, <\/font><\/span>010429, is written on its back. Also it is mentioned “Made in China” \ud83d\ude00 I found this lcd on an old control system panel. Control panel is out of use so i removed this lcd from the panel and used it in my diy project. I could not found the lcd pin out on internet. I managed to locate the pin names by mapping the header with standard character lcd’s .<\/font><\/span><\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table><\/div>\n<\/div>\n<\/div>\n
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\"24x2 <\/a> <\/p>\n
24×2 lcd from samsung, UC24202, GNAR4PA, 010429,<\/div>\n<\/p><\/div>\n<\/div>\n
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Interfacing 24×2 lcd with 8051(89c51,89c52) microcontroller<\/h2>\n<\/div><\/div>\n
Interfacing 24×2 lcd with 8051(89c51,89c52) microcontroller is an easy task. If you already interfaced any character lcd with 8051(89c51,89c52) microcontroller you can easily interface 24×2. But if you don’t then below are some small tutorials on lcds which will help you in understanding how to interafce and display characters on character lcd’s.<\/font><\/p>\n