Alphanumeric LCD displays have become very popular for microcontroller applications because they can add a lot to a project in a variety of different ways. A text message giving the user instructions as well as feedback can make the application seem much more “professional” and easy to use. I like to use LCD’s to help […]
2-Wire LCD Interface using PIC16C84 Read More »
This project uses Myke’s 2-Wire LCD Interface from last week and will help teach you “Graphics Animation” using LCD’s. Last week, I showed how the PICMicro could be connected up to a Hitachi 44780 LCD using only two wires. This week, I wanted to use this circuit and show how simple graphic animation can be
Using an LCD’s for Graphics Animation using PIC16C84 Read More »
Following on from the LED flasher circuit, we can reduce the delay in the loop to 10uS (10 microseconds) and produce a 100Khz square wave. Given a 4 Mhz PIC 16C84, the program below will generate a 100Khz square wave on PORTA bit 0 (i.e. pin 17). This little program is useful for testing oscilloscopes
100KHz Square Wave generator using PIC16C84 Read More »
An Analog & Digital propeller clock i made! It isnt Real its just because your so awfully slow!!! 😉 based on an afterimage phenomenon, ie the reaction slowness of the retina, the illusion of reality our brains are “lying” Picture’s made 12-12-1997 by Luberth Dijkman Clock was actually running 2 weeks earlyer Bob Blick started
Analog & Digital propeller clock using PIC16C84 Read More »
For another project I started I needed to control the motion of a stepper motor. A stepper motor is used when precision control of movement is needed. With each movement of the motor, the drive shaft steps a precise amount of distance (usually a few degrees with each turn). You can often salavage steppers from
Stepper Motor Controller using PIC16C84 Read More »
This is the first clock I ever built. I’ve built a few LED signs, but they get boring because I already know the message. How this clock works: A motor spins the “propeller”, and a small microprocessor keeps track of time and changes the pattern on seven LEDs with exact timing to simulate a 7
Propeller Clock Mechanically Scanned LED Clock using PIC16C84 Read More »
I started to develop what I call my “next generation of microcontroller projects” (I have to find a name for that), so I needed a character set fully compatible with ASCII using only 7 segment displays. When I started to determine how many characters and which ones I will use, I thought only 64 characters
This is a closed-caption decoder with serial output based on a Microchip PIC16F628A. The internal comparators of the PIC16F628A are used to implement a peak detector and data slicer. The hardware was designed by Richard Ottosen, and the firmware was written by Eric Smith. This closed-caption decoder does NOT overlay captions on video (OSD, on-screen
Closed-Caption Decoder using PIC16C84 Read More »
This is my first simple PIC program. It will flash an LED continuously at approximately 1Hz. It is a very simple loop that delays for 500 milliseconds (half a second) with the LED on, and then delays for 500ms with the LED off. Thus, the LED flashes at 1 Hz! The schematic for this circuit
LED flasher using PIC16C84 Microcontroller Read More »
This Programmer is powered by the RS-232 and it works with RS-232 levels at only < ±8.6V. It programs PIC12C5XX, 12C67X, 24CXX, 16C55X, 16C61, 16C62X, 16C71, 16C71X, 16C8X, 16F8X and ISO-CARD’s with ASF. Other serial programmable chips by adapter. The high Vpp is obtained by using negative voltage to drive the chip. The voltage is
PIC-Programmer 2 for PIC16C84 etc. Read More »
