RF is just way too cool not to use in your designs. But if you’re a newbie like me it is difficult to successfully build solid RF transmitters and receivers. When I started out I didn’t realize that the larger breadboard I was working off of was causing a lot of the signal deviance because […]
RF Modem Robotics Project using PIC16F84 microcontroller Read More »
This is a port by Peter Cousens to the PIC 16F84 of the 50Mhz Frequency counter kit {originally available} from Weeder Technologies . Since it uses a base PIC that is easily programmable, and provides a usefull bit of bench test equipment at very low cost, it makes an ideal PIC learning project. If you
The Weeder Frequency Counter using PIC16F84 Read More »
This article shows how to use the PIC16F84 microcontroller with PicBasic to design a quick & effective, serially controlled, I/O-Expander. Using PicBasic makes developing handy single-chip devices like this extremely simple. If you’re spending all your time programming in assembler, you’ll appreciate how simple PicBasic is to use, and how easily you can create single-chip
Using PicBasic with the PIC16F84 PIC Microcontroller Read More »
When I designed the “YAP” for the “YAP” PICMicro programmer presented in “Programming and Customizing the PIC Microcontroller”, I felt that the serial interface provided in “execution mode” of the programmer would be very useful for people developing their own software. With this interface, the user could input new values into the PICMicro application or
Bit-Banging Serial Interfaces for the Low-End and Mid-Range PICMicros using PIC16F84 Read More »
While I was writing some tips to solve problems about Spectrum’ keyboard, some guys asked me for the possibility of using a PC-keyboard coupled by adapter. One market solution was launched by ‘Sintech’, but isn’t available the scheme nor the program used by inner microcontroler. This lack of information pushed me to do an innovating
IMAR-3 PC-KEYBOARD ADAPTER FOR SPECTRUM using pic16f84 Read More »
This module is so simple, I’m surprised it has not been thought of before. You can fit a PIC16F84A or PIC16F628 and it becomes a “buffered PIC chip.” Look at the circuit diagram first to see what the module is doing. It’s buffering 5 of the input lines with a 1k resistor and buffering 8
PIC LICK-1 using PIC16F84 Microcontroller Read More »
Introduction Sometimes you only need a simple and cheap RS232 terminal to get sufficient control over a PC or a RS232 device. There is no need, no space or even no power to place a monitor, a computer case and a keyboard. Maybe there exists also the problem, that the PC or the device is
AT Keyboard Interface V1.04 using PIC16F84 Read More »
This experiment turns on a LED when button A is pressed. The button is connected to the lowest bit of Port A (bit0). When the button is pressed, the line goes HIGH. This is called positive logic. The LED is connected to the lowest bit of Port B (Bit0). Any bit of any port can be
Turning on a LED using PIC16F84 Read More »
Another method that helps program development besides a dot LED as the output device is a serial bit. With a serial transmission to a terminal emulator program, developer may then test program running easier than a dot LED. One of my circuit uses PIC16F84 having one bit for sending ascii character with “printf” function. The
Isolated RS232C for PIC16F84 Read More »
Introduction The F84 MRTC was my second design of a miniature real-time controller. This version uses PIC16F84 running with a low power X-tal 32,768Hz. The scheduler for 6-channel output was saved in EEPROM. No terminal for serial downloading of the scheduler. It’s suitable for fixed scheduler job. Two AA size battery provides +3V backup for
Miniature Real-Time Controller using PIC16F84 Read More »
