Hello friends! Today we will learn how to get the compiled HEX file from an Arduino sketch. This is useful when you want to load firmware into a Proteus model, program a compatible AVR microcontroller or keep a specific compiled version of a project. Libraries Libraries used in this tutorial Arduino Library for Proteus: V1.0 (2015, used in this tutorial) · latest version: V4.0 (October 2026) Arduino UNO Library for Proteus: V1.0 (2015, used in this tutorial) · latest version: V4.0 (October 2026) Helping Tools Serial Monitor Advance : a serial terminal window for the UART of your board Serial Monitor Expert : the serial monitor with extra debugging tools LCD Library for Proteus V3.0 : 16x2, 20x4 and I2C LCDs to show your readings Arduino does generate compiled firmware during its normal bui ...