To flash an ATmega328P chip with an Arduino you only need a few simple components that you likely already have if you use an Arduino including:įor this example I'll be flashing the ATmega328P with a simple blinking LED program so I also need the following components: We will also be using straight C code without any of the built in functions the Arduino IDE provides. This article shows how to program a standalone ATmega328P using an Arduino and the Arduino IDE. Luckily, if you have an Arduino, you already have what you need since the Arduino itself can be used as a programmer for the ATmega328P (and many other AVR microcontrollers). The first problem that may become obvious though is that you can't connect the ATmega328P directly to your computer to upload programs to it. So once you have completed prototyping a project with the Arduino, you can transition the project to using a standalone ATmega328P instead. An official Arduino Uno costs over $20 (although clones can be found on eBay for $10 or less) while a standalone ATmega328P costs about $2. Prototyping is a great use for an Arduino board as it allows for quick and easy iterations of a design, but for completed projects it can often be overkill depending on the features used. The Arduino board makes it easy to interface with the pins on the ATmega328P while adding extra features that don't come with the standalone microcontroller, including a USB serial interface and 16 MHz clock. The ATmega328P is the microcontroller that powers the Arduino Uno development board. Programming an ATmega328P with a blinking LED program.Preparing the Arduino Uno to work as an in-system programmer.Setting up the Arduino IDE to program a standalone ATmega328P microcontroller.An Arduino can be used to flash a standalone ATmega328P microcontroller without the Arduino bootloader.
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