Select "Arduino Duemilanove or Nano w/ ATmega328" from the Tools > Board menu. Wire up the Arduino board and microcontroller as shown in the diagram to the right. (You'll need to select the board and serial port from the Tools menu that correspond to your board.) Upload the ArduinoISP sketch onto your Arduino board. To burn the bootloader, follow these steps: because you took it out of an Arduino board or ordered an already-bootloaded ATmega), you can skip this section. If the microcontroller already has the bootloader on it (e.g. You can do this using an Arduino board as an in-system program (ISP). If you have a new ATmega328P (or ATmega168), you'll need to burn the bootloader onto it. Two 18 to 22 picofarad (ceramic) capacitors. Unless you choose to use the minimal configuration described at the end of this tutorial, you'll need four components (besides the Arduino, ATmega328P, and breadboard): It's similar to this tutorial, but uses an Arduino board to program the ATmega on the breadboard. This tutorial explains how to migrate from an Arduino board to a standalone microcontroller on a breadboard.
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