The circuit shown in the figure is the minimal circuit that is required to work with standalone ATmega328P IC. ATmega328P IC minimal circuit explanation Make sure you have selected the right port and board(Arduino UNO). For that remove the main microcontroller IC from the Arduino UNO board and connect the new ATmega328P IC as shown in the figure. Now, you can use it to upload code in it. Step7: The bootloader is burned in the IC. Step6: Go to the Tools tab again and then click on burn bootloader. Step5: Connect the ATmega328P IC with the Arduino UNO board as shown in Figure 1.4. Step4: After the ArduinoISP code is uploaded, go to the Tools tab and then go to the Programmer option and select Arduino as ISP. Step3: Upload this ArduinoISP code to your Arduino UNO Board. Step2: Go to the File tab then click on examples then click on ArduinoISP. Step1: Create a minimal circuit for the newly purchased ATmega328P IC as shown in figure 1.3. In case you want to use a new ATmega328P IC for your project then you have to follow the following steps. Figure 1.3Ĭapacitors: 22pF Crystal: 16MHz Figure 1.4Ĭapacitors: 22pF Crystal: 16MHz Resistor: 330 Ohm Upload bootloader in ATmega328P IC Step4: Give power to the circuit using a 5V adapter. Refer to Figure 1.1 for pin configuration of ATmega328P IC. The pins marked on the Arduino UNO board are different on the ATmega328P IC. I am creating a LED blink project so, I have connected an LED on the D3 pin of the ATmega328P. Step3: Connect all your modules or sensor or any electronic components to the ATmega328P IC that you want to use in your project. Step2: Create a minimal circuit that is required for ATmega328P IC. Step3: Remove the ATmega328P from the Arduino UNO board and insert it onto the breadboard. I have uploaded an LED blinking code in my case. Step1: Upload your code to the Arduino Board. Here, we will use the same ATmega328P IC that is present in the Arduino UNO board. The ATmega328P-U is also a great selection for Internet of Things (IoT) development, as its inherent power consumption is very low without LEDs or regulators.Pin configuration of ATtiny25/45/85 Figure 1.2 ATmega328P on a breadboard or standalone ATmega328P The ATmega328P-U shown here is a dual in-line package microchip that can be placed on a breadboard, making it ideal for projects that require enclosure, or prototypes moving beyond the development board phase. The Atmega328P is at the center of every Arduino Uno board and acts as the 8-bit microcontroller that controls and interacts with sensors, motors, relays, and other electronic devices.

Bootloader arduino uno