Heart Rate monitor

This project by the undergraduate students of Cornell University allows you to measure your heart rate along with blood pressure through the use of optical based sensors. Their intention is to gather data for large-scale analysis for the automatic prediction of heart disease. The heart of the project is the ATMEGA 1284p, which is used to control the infrared LEDs that will transmit light which is reflected back to the light to frequency sensors. The microcontroller takes in the signals that reflect pulsatile measurements, and will digitally process these signals into pulse measurements, and send the data through either USB or bluetooth to a PC. The PC will have a GUI that graphically shows the two pulses and the blood pressure and pulse. The mouse unit contains the mouse controller, … Continue reading

Device to measure sports performance

This device named as Fight Coach is sensor system that can be inserted into sports gear which will permit fighters to manage evaluate their performance. By tracking the athlete’s hand movement and displaying it in real-time, Fight Coach can help athletes optimize their training. However, the main advantage of this device is that it’s small enough to fit into their equipment without causing much trouble or comfort problem to the athlete. Moreover, it has USB rechargeable battery system along with a wireless system. The ATMEGA32U4 microcontroller does the major work which is also connected to a RN-41 Bluetooth module for wireless functionality. Motion data, generated by the accelerometer and gyroscope, is obtained by the MCU via i2c, and the MCU then transmits that data to a Bluetooth module via UART, … Continue reading

Visualize music in 3D

This project allows you to generate 3D effects on a screen consisting of a mixed number of different LED’s. The effect generated are based on the beats and the tempo of the music. To generate the beats pattern, a MATLAB program is used to generate the hex file which is burnt into the controller. The controller attached to a 10×10 screen displays the required pattern. This project is very cheap to build and you could possibly build it without even going to the market as it utilizes two sets of controller, some LED’s, a motor and decoder. Different microcontroller are used to control the motor and the LED structure possibly due to pin shortage and high current requirement by the motor. The effect produced by the system is continuous as … Continue reading

Temperature Controlled Cooker

Most of the cookers that come in the market are controlled by thermostat to provide auto cutoff functionality. However, this cooker provides a mixture of temperature and time based options to the user. These type of functionality is particularly missing in low cost cookers. Students of Cornell University have modified a commercially available electric cooker to complete their project. Cooker can be used for a variety of purposes ranging from simply boiling the perfect 6-minute soft-boiled egg to sous-vide cooking a piece of delicate white fish. It uses a traditional thermal conduction method to cook food regardless of the cooking vessel’s material. It has three discrete modes of operation namely input, heating, and cooking mode. You can read more about each mode on the project website in detail. Analog potentiometers … Continue reading

Universal Remote

We all have faced the problem of managing multiple remotes while using our home theater. Although there are commercially available universal remote, this project will allow you to make your own universal remote controller and hence will teach you the working of a remote. In short, it learn the required signal of different remotes all at once, store them and can transmit them based on the input received from the user on the remote. A typical NEC protocol is used to implement the remote control but with a little modification you could also use RC-5 protocol Presently, it only has the capacity to store 9 buttons due to the keypad being used, however, you could replace with a touch screen based LCD to store more signals and increase the attractiveness … Continue reading