My new project specs are:
A non-rechargeable battery based data loger. The plastic enclosure is been chosen by the customer and can contaqin up to four AA batteries in series. There will be an LCD display with 35 segments and a USB A female connector, for connecting a USB memory stick.
The product must be able to hold the LCD always on and also to wait for a USB memory stick connection to store data. SD cards or other type of memories aborted from the customer.
I have enough experience on low power consumption battery systems. I have chosen the ATmega3290P for controlling the LCD, the sensor and other circuits. My problem is that I don't know what can I do in order to comunicate and write to memory sticks.
The circuit must have low consumption in order to save energy and to live with the same batteries for as long as possible (at least 1 year).
Can you give me a hand???