Hello friends! I hope you are doing great. In this tutorial, we are discussing the upgraded version of the Arduino Nano. Before this, we discussed the Arduino Nano library for Proteus and the Arduino Nano library for Proteus V2.0. The new version of the Arduino Nano library for Proteus V3.0 has a better structure and is working better. We will discuss it in detail in just a bit. Updates Arduino Nano Library for Proteus Latest version: Arduino Nano Library for Proteus V4.0 (October 2026), with working LEDs, a RESET button and a built-in serial monitor Earlier versions: V3.0 (2023, this tutorial) · V2.0 (2021) · V1.0 (2015) Other boards: UNO · Mega 2560 · Mega 1280 · Pro Mini · Mini (V4.0) All six V4.0 boards in one package: Arduino Library for Proteus V4.0 Helping Tools Serial Monitor Advan ...