Circuit Lake

Gas sensors are employed in a wide range of applications in the fields of safety, health, instrumentation etc. Common examples are domestic/commercial alarms for explosive or toxic gases, or in automotive application as gas leakage detectors for LPG powered cars and exhausts detectors inside any fuel-powered truck/car. Such sensors, nowadays, are found also in applications involving air quality control systems and pollution monitoring. The project aim is to show how to build gas detector based on small microcontroller, AVR ATtiny45. The MCU can be employed to replace a lot of ...

Talking Elevator is a simple, low-cost and easy to install voice message solution for elevators. It can be set up and installed in minutes without the cost of modifications to elevator’s electrical systems and cabling. With very low power demands the system can work from batteries for about 1 to 3 months (depends on how often the elevator "talks"). Because it can be just glued to the cabin’s wall it can be installed "on demand", for example because of the visually impaired people meeting, international conferences, etc.Besides generates voice messages ...

Teachers Timer is ATtiny13-based innovative and discrete timing device for assisting teachers and lecturers. Using cell phone style vibrations and a simple one-button interface the user can be alerted to the passage of time without staring at the clock. For lectures and presentations the device can also include a laser pointer that will gently fade in and out to alert the user."The idea is simple: it vibrates in your hand and you click the button to “snooze” the alarm, moving on to the next subject. No looking. No thinking," Said ...

The goal of the project is to build automatic home blinds system. The controller will open the blinds at first light and close them at sunset. If the sunlight becomes too excessive the blinds will partially close to protect the furnishings in the home. If the heat becomes too great the blinds will partially close to help keep room temperatures within reason.The main component of the project is Atmel ATtiny45 AVR microcontroller, solar panel to convert energy from the sun to electrical power, NiCad cells as energy storage and stepper ...