PIC based 5-digit multi function display module

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MDM-1 is a programmable LCD display module, intended for applications that require a fast time to market at low cost. The module is sold unprogrammed, allowing the user to program the desired functionality into the product. MDM-1 can be made to control a complete application, including its display front-end, a keypad interface, switching outputs and any LED's.

The module's core components comprise an LCD and a PIC microcontroller. The display consists of a 5-digit, 14-segment starburst LCD with green LED backlighting. Each LCD segment is software-addressable, allowing the user to display numbers, text and non-standard characters. 

The PIC processor used (a 4MHz 16F877) features a reduced instruction set (RISC) architecture, making it easy for the user - novice or advanced - to develop professional software quickly. The PIC processor contains 8k 14-bit words of Flash program memory, allowing the module to be programmed in-circuit, and then re-programmed if necessary. This ensures that the latest firmware revision can be downloaded into the module, or changed on-the-fly. 

An internal 256 byte EEPROM features a pre-programmed character generator, making the display of text particularly easy.


• 5 Digit Starburst LCD with LED backlighting
• 16F877 Flash PIC Microcontroller
• 8k x 14-bit Word user-programmable flash memory
• 10-bit A/D converter, up to 8 channels
• 2 pulse width modulation channels

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