I am relatively new to AVR development, and I recently happened upon the Arduino project. I am curious to know if it is possible to put an ATMega8 in my STK500, and use the Arduino IDE to interface the ATMega8, without buying a fully built Arduino board. I have successfully uploaded the bootloader by following these instructions. But when I try to upload sketches through the Arduino IDE, I get nothing but “programmer not responding” errors. After reviewing the Arduino schematics, I don’t see why this shouldn’t work. I have a feeling that all I need is the right settings on the STK500. I know that the Arduino hardware requires a 16 Mhz external crystal, but can’t the STK500 supply the clock source it needs? Or will I need to put an actual crystal in the “crystal” slot on the STK500? If I need to put in an external crystal, does the STK500 supply the 20 pF capacitors that usually accompany the crystal? Thanks in advance for your help. Talk to you soon.