Battery Capacity Meter, Battery sAVR
The Battery sAVR is an intelligent battery capacity meter that will log the discharge of a single primary or secondary cell over a period of time. But it’s more than a dummy load and data logger, with Atmel ATtiny26 AVR microcontroller, the Battery sAVR can emulate 3 different types of loads in real-time – Constant Current, Constant Power, and Constant Resistance. The user can also define a cutoff voltage down to 0.8V.
David Jones, the project designer, said that the project is powered completely from the battery under test. It also dynamically compensates for its own current consumption using differential ADC in the ATtiny26 device. The project firmware is written in C language and only need 1Kword memory of the ATtiny26. The data (time, voltage, and current) is stored in the internal EEPROM memory of the ATtiny26, which is automatically fully utilized regardless of the cutoff voltage or discharge time. The data can be exported via a PC serial port into CSV format for easy graphing in your own spreadsheet.
Battery Meter
Project Detail and Documentation
circuitcellar.com
Related posts:
- Portable RLC Meter
- Automatic Water Valve-Meter
- AVR RPM Meter with KMI15/1 Rotational Speed Sensor
- AVR LC Meter
- Harmonic Distortion Meter
arduino battery meter, arduino batery meter, MPPT with ATtiny, load cell microcontroller avr, current meter microcontroller arduino Pic avr, battery capacity tester avr, battery capacity pic, battery capacity circuit -patent
