Hi all. I’m pretty new to microprocessor programing and I had a question about this board. If I wanted to power it from a battery pack, I could use 8 1.2V rechargable batteries to do this, correct? All I would have to do is to connect them to pins marked “+” and “-”. And in order to use the ADC I would just use the jumpers that are provided? Also, I have the AVRISP made by Atmel to program their chips. Can I use that to program the board or do I have to purchace the PG1B or PG2B? Thanks.
As I understand it (having played with a few of the AVR-H128 boards) you need to make sure the jumper is on next to the voltage regulator (so that the Vreg is used, instead of relying on an external Vreg.) This jumper is labeled “PWR.” Then, you need to connect a voltage source large enough (6.7V or greater) to work with the on-board 100ma 5V Vreg. 8 cells at 1.2V per cell would be 9.6V, and that would work.
You should be able to plug in an ISP or JTAG connection at that point, and get a confirmation that the board is alive.
Andy Out!