How to upload a sketch to Atmega328p using USB to TTL Module (CP2102) on a breadboard - Arduino Tutorials #10

In this post, I will show you how to upload a sketch to Atmega328p using USB to TTL Module (CP2102)

If you prefer video mode you can click here to watch the video.

First, connect the circuit as per the circuit diagram

After making the connection connect it to a Laptop or a Desktop

Next, select the board as Arduino UNO, Port as per your COM port and the Programmer as AVRSIP mkII

Next, select any sketch (For example BLINK)

Next, click the Upload button to upload your sketch to Atmega328p

Once the compiling is done and you get the notification uploading, press the push button immediately on the breadboard for manual Reset for your sketch to get uploaded to the Atmega328p

If you pressed the push button at the right time and you're in sync your sketch will be uploaded and you will get the notification Done Uploading

If you pressed the push button at the wrong time and you're not in sync you will get the below Error

Next, connect the remaining circuit which the sketch was intended for. In my case 220 Ohm & Led to Pin 19 of the Atmega328p for the Blink Sketch

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