This is my 3rd project. A smart NiMh (and NiCd) battery charger.

A smart NiMh (and NiCd) battery charger. It use -DeltaV to detect end of charge. More details: http://arduinoelettronica.wordpress.com/2012/04/20/caricabatterie-intelligente-nimh-con-attiny85-e-arduino-smart-nimh-battery-charger/