LCD Serial Terminal


Posted on Mar 18, 2013

This project is a self-contained serial terminal using a PIC16F84 microcontroller chip, an inexpensive LCD character display, a keypad, and very little else. It is full-duplex, meaning keypresses cause RS-232 output, and RS-232 input makes characters appear on the LCD. If you connect the RS-232 output to the input you can see the keys as you press them, without connecting to anything else (thats called looping back).


LCD Serial Terminal
Click here to download the full size of the above Circuit.

The picture above doesnt show the electronics, just a keypad and LCD display. The electronics is on a small board behind the LCD. This LCD is a 4 line by 20 character intelligent LCD display. Displays from 1x8 to 4x20 or 2x40 and pretty much anyth




Leave Comment

characters left:

New Circuits

.

 


Popular Circuits

Light Detector circuit
250W Inverter Circuit
Digital Radar Speedometer
80M
portable solar lantern circuit uses 6
Guitar pre-amplifier using uA 741
Arduino Analog Read Potentiometer to Digital Out LED
Remote control using telephone
Detecting an ultrasonic beacon
Sawtooth Signal Generator
Wide Dynamic Range Field Strength Meter
Single-speed motor excitation from the electrical braking circuit



Top