The Serial LCD 4 PCB Features
Accepts a 24 character by 2 line display module with backlight.
Received serial ASCII characters are displayed on the LCD screen.
Serial input and output are TTL level signals connectable to RS-232.
Four push button keyboard. Switches send an ASCII serial code when pushed.
Accepts power input of 6 volts to 12 volts DC. (Works with 9 volt battery).
Current is about 5ma without a backlight. Separate switches for power and backlight power.
Other displays are usable with some changes to basic assembly.
A single input/output pin accessed serially.
Piezo beeper for bell sound. Beeper clicks when a button is pushed.
Single PC board that can be parted on break lines for separate display and keyboard assemblies.
Uses PIC16F84 microcontroller.
Order Part Number 12624
(pdf, 80k, August 3,1999)
Updated August 14, 1999