A data logger is an electronic device that records data over time either with a built in instrument or sensor or via external instruments and sensors. They are based on a digital processor and generally are small, battery powered, portable, and equipped with a microprocessor, internal memory for data storage, and sensors. Data logger that we developed was a stand alone type with and LCD interface. This device was designed to be used by students so that they can record their experiment data and later use that in their reports.

Salient Features :

• 100 MHz, 32 bit CPU with DSP core
• Color and monochrome LCD screen
• Large mobile SRAM, SDRAM and FLASH memory
• Several analog input channels for data logging
• Several analog and digital outputs for control functions
• Variety of interfaces such as USB (host and function), IrDA, RS232, SPI
• Color LCD with touch-screen facility
• Operation from Lithium-Ion batteries
• Battery charging from AC adaptor and USB port
• Fool-proof protection from over-charging and over-voltage