This ATMega168-based battery tester allows you to find out the overall capacity of the rechargeable battery. It can shows how long will a battery last from the time it’s fully charged to the time that the “low battery” indicator comes on your device. It can be used to test multiple cells individually, and display [...]
Audioino is neat way to program an Arduino compatible microcontroller via the audio port of your PC. Chris said to build Audioino, firstly you need to program your Atmega168 with custom audio bootloader. You can use the sketch “ArduinoISP’ in the examples folder of the Arduino IDE for flashing or find someone who owns [...]
This ATmega168-based digital comb filter built to clean a realtime audio signal. It can remove the ubiquitous 60Hz (50Hz in some countries) hum noise caused by power lines and household electrical wiring. Since the noise is not strictly sinusoidal it is necessary to remove all harmonics of 60Hz, and that is what this filter does.
This ATmega168-based project monitors household power usage and logs it to an SD card. Signals from voltage and current detectors amplified LMC6484AIN quad op-amp and then AVR microcontroller computes the power consumption using the formula P=VxI.
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