Design and development of a tablet based real time wireless data logger

To date, data loggers are getting more implementation in business and home applications compare with several years ago. Data loggers can be customized according to the application requirement based on the available resources in the market. Thus, this creates a cost effective solution for the end user. In this paper, a wireless data logger with remote control capability via PC and tablet is introduced. The proposed wireless data logger is developed using microcontroller with analog-to-digital converter (ADC). The design of the portable wireless data logger is compact and light to increase the mobility and usability. Sampled data with time stamp from real time clock (RTC) module will be stored into SD memory card which is attached to controller board. Wireless data logger can directly transmit the data to end user if the device is in the communication coverage or stored the data into memory card if it is out of range. Graphic user interface (GUI) developed using Visual Basic and Android application. These applications can communicate with wireless data logger through wireless XBee module and Bluetooth module. End user can change the data logger settings such as, data sampling frequency, date and time remotely.