Bluetooth-based data logger 


The Bluetooth-based data logger is one of the mini electronics projects involving sensors and computer systems along with electronic gadgets. A data logger records all types of data related to the environment and energy in a given time interval and acts as a substitute for the chart recorders. The process of collecting data on a computer is the goal.

A microcontroller chip of AT mega 32 circuit type AVR is used and a data logger connects to computer systems via USB cable. These data loggers work in 24 hours and usually microcontrollers are small electronic chips that consist of a programmed circuit that performs high variable tasks. In this project, the sensor detects the analog signals and converts them into digital signals and transmits them to the chip of the microcontroller. The power supply supplies power to the microcontroller chip that collects digital signals from the ADC (analog-to-digital converter) and then sends via bluetooth to the respective computer systems or PC's. This project helps control certain factors like humidity, temperature, pressure, sound intensity, force, etc.