Charger battery with pic12f675

[Leonardo]

Hello friends,
I want to make a 4 battery charger for NiMH 2700mA using a pic12f675, the idea is that the LED stays on when the batteries are loaded and off when they have reached their full charge, which is not how to manage the entry for input analog the load is stopped upon reaching eg 6 V.

When you connect the battery starts charging, then pin 5 Mv monitors voltage divider, where the input analog detects that the load has reached 6 V pin 7 is at logic 0 and the load is short. I plan to put a temperature sensor (thermistor), so that if it reaches 32 ° C, the battery is charged to court.

Can you give me some idea about how to make the project.

Thanks