The goal of the project is to build a device that able to constantly monitors heart rate and stores the data on an SD memory card. The data can be read from the card, imported into MS Excel (or other programs) for graphing or other analysis. The heart rate data logger project consist of [...]
This versatile data logger is built around the AVR Butterfly. It is a cost effective solution that monitors light, temperature, battery voltage and external sensors. The external sensors can be digital signals, analogue voltages or a frequency. There is provision for up to four external analogue sensors in addition to those shipped on the [...]
The RS232 Data Logger is entirely a software solution to log data using the ATmega169 AVR Butterfly The unit is used side by side with existing products or your homemade projects which has UART capability but it is not able to store much data for an extended time duration. AVR Butterfly has UART and a [...]
Energy Analyzer project is M16C/62P microcontroller-based power and energy data logger with ability to read voltage and current RMS values, power factor, real power and energy, harmonic contents etc. Besides the basic measurements, the circuit is capable of signal acquiring to detailed analysis in time and frequency.
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