More patents for bicycle improvements have been issued than for any other machine. It is no wonder that the simplest of mechanical devices invites constant tinkering. If you do a search for speedometers for bikes you can come up with the old style mechanical contrivance with a gear driving a cable into a solid style […]
Bike Analog Speedometer Using Atmega Read More »
When turned off, it looks like an ordinary toy car that would entertain a kid for hours, but actually it is an oscilloscope kit in disguise! The idea and also part of the code for this project came from another scope called STM-32-O-Scope (aka pigScope), which uses
Fast, Portable and Affordable Oscilloscope and Inductance Meter Using Atmega Read More »
Binary displays are very popular for clocks so it looked like there a gap waiting to be filled in the measurement area with an instrument that displayed its results in a Binary format. As result I decided that a DVM would be a suitable project to be given a Binary makeover. The Microbit has the
Binary DVM Using Atmega Read More »
What is a capacitor? A device that stores electrical charge which in its basic form consists of two conducting plates separated by a dielectric. In addition to the basic parallel plate several other forms of construction exist an example being that the plates in the form of a metal foil allow the capacitor to be
Microbit Capacitance Meter Using Atmega Read More »
This is my first Arduino project aimed at helping me with my other hobby which is growing oyster and shiitake mushrooms indoors. In a nutshell, the controller takes in two temperature readings, 1 Humidity reading and 1 Co2 reading and triggers a set of four relays connected to mains power. Intended to be connected to
Mushroom Environment Control – Arduino Powered Using Atmega Read More »
My last visit to the dentist convinced me that I should really brush my teeth at least two minutes. I decided to build a special toothbrush timer: it would detect when a brush is taken out, measure two minutes and notify when the time is up. I chose to use Atmega328p, a weight sensor, brass cups,
Vintage Toothbrush Timer using ATMega328p Read More »
The aim of this ATmega644-based project is to build a portable device implementing wireless technology and taking full advantage of the wide-spreading Internet to provide a convenient solution to monitor human health. The health information acquired on the portable side transmits to the server wirelessly and can be accessed all over the Internet in real-time. The end device turned out
Wireless Human Health Monitor using ATmega644 microcontroller Read More »
Introduction Unexpected cardiac death, also known as sudden death is a frequently fatal form of arrhythmia which kills more than a quarter of a million people each year in the United States. Confronted with the devastating effects of unexpected cardiac death and with the pursuit of advance understanding of cardiac diseases, my partner and I
Final Project EKG Monitoring System Using Atmega Read More »
Introduction Our final project is to design and build a portable blood pressure monitor device that can measure a user’s blood pressures and heart rate through an inflatable hand cuff. The device is consisted of three main parts: external hardwares (such as cuff, motor, valve, and lcd), analog circuit, and microcontroller. The anolog circuit converts
Blood Pressure Monitor Using Mega32 Read More »
Introduction Our project is a digital stethoscope that displays your heartbeat on any television. It also calculates beats per minute and alerts you if your rate falls out of a specified range. At the highest level, the design of our project centers around an acquisition circuit, data processing in two MCUs, and the output on
Digital Stethoscope Using Atmega32 Read More »
