Introduction By measuring brain activity using electrodes and an amplifier circuit, electroencephalograms (EEGs) are at the intersection of electrical engineering and neuroscience. By using signal processing techniques, we can examine the effects of external stimulation, such as music and meditation, on brain waves. We primarily examined alpha and beta brain waves in our EEG. While […]
Description This project came about because I have three motorbikes and being a bit of a fair weather biker they don’t get used much over the winter months. I have an OptiMate™ 4 charger that I connect to the bikes but this needs me to manually swap it from one bike to the next and […]
The 3rd harmonic distortion meter has been designed for measuring the quality of AC supply. The meter is built with a PIC18F2550 project board and the full wave rectifier front-end circuit. The AC power line, 220VAC is measured through the step down isolation transformer. The input signal to the 10-bit ADC is full wave rectified. […]
Introduction Our project design is an exquisite PIC32-based gaming console that supports NTSC video output, audio output and takes input from a NES Controller. Also we have fully developed an easy-to-use game engine that PIC hobbyists can rapidly develop any favorite game on the console. With the console comes with a sample game that we […]
This is an improved version of my 18-pin PIC16F series breadboard module that I have used in many of my PIC tutorials and projects published in this website. The new version has got a +5V power supply regulator on-board and a 2.1mm female barrel jack for DC input from a wall adapter. The 18-pin PIC16F […]
Introduction We created an affordable Digital Oscilliscope and Function Generator that is able to plot and produce (at the same time) generated electric signals (voltage) changing over time along a calibrated scale. The device provides the basic Digital Oscilliscope functionality of plotting the varying voltage onto a desktop monitor, and the basic Function Generator ability […]
Introduction An HD44780 Character LCD is a liquid crystal display (LCD) display device designed for interfacing with embedded systems. These screens come in a variety of configurations including 8×1, which is one row of eight characters, 16×2, and 20×4. The most commonly manufactured configuration is 40×4 characters, which requires two individually addressable HD44780 controllers with […]
The 12F series of PIC microcontrollers are handy little 8-pin devices designed for small embedded applications that do not require too many I/O resources, and where small size is advantageous. These applications include a wide range of everyday products such as hair dryers, electric toothbrushes, rice cookers, vacuum cleaners, coffee makers, and blenders. Despite their […]
Many times when I’m working with a small MCU such as 8 pins or 18 pins MCU. I found that I don’t have enough MCU pins for parallel LCD display. So it’s good to have a one-pin-require LCD module for experiment. Acctually, serial LCDs are sale on the market but still I built it myself […]
What This Is This project is for a small electronic unit that allows the user to sense the presence and relative signal strength of wireless hotspots. It can be worn as a pendant or carried in a pocket. It is “always on” and communicates the presence and signal strength of an in-range hotspot by way […]
