Hello friends! Today we will connect an Android phone to an Arduino through USB and exchange commands in both directions. This is useful when you want a wired control panel, a portable instrument display or a direct connection without configuring Bluetooth or Wi-Fi. We will start with one classic Arduino Uno and a small LED-control sketch. After that, we will revisit the original two-Arduino arrangement, which lets a computer monitor the bytes travelling through the phone connection. The second board is a debugging aid, not a requirement for Android communication. The important details are the phone's USB host support, the board's USB interface, permission to open the device and a clearly defined message format. Once these are understood, we can build a useful connection without treating U ...
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 ...
Hello friends! Today we will get started with Arduino programming by learning how a sketch is organized and how it interacts with the board's pins. We will begin with comments and the setup and loop functions, then move through digital input, digital output, analog measurement and pulse-width modulation. Libraries Arduino Simulation Libraries Arduino boards: UNO · Mega 2560 · Mega 1280 · Nano · Pro Mini · Mini (V4.0) All six V4.0 boards in one package: Arduino Library for Proteus V4.0 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 If you have not installed the software or uploaded your first sketch, be ...
Hello friends! Today, we will get started with Arduino software and upload our first sketch. If you have just connected an Arduino board and are wondering what to do next, this tutorial will take you through the essential steps: installing the editor, selecting the board, writing a small program, compiling it and transferring it to the hardware. Libraries Arduino Simulation Libraries Arduino boards: UNO · Mega 2560 · Mega 1280 · Nano · Pro Mini · Mini (V4.0) All six V4.0 boards in one package: Arduino Library for Proteus V4.0 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 The original article used Ardu ...
Hello friends! Today we will read analog voltages with an Arduino Uno and display both the ADC readings and calculated voltages on a 20 × 4 LCD. We will build the circuit in Proteus, connect the display, write the sketch and work through the conversion from a digital count to volts. Libraries LCD Simulation Libraries Latest library: LCD Library for Proteus V3.0 (October 2026): LCD 16x2, LCD 20x4 and both I2C LCDs in one library, with our own HD44780 model and an Arduino demo One LCD only? LCD 16x2 · LCD 20x4 · I2C LCD 16x2 · I2C LCD 20x4 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 The central idea is simple: analogRead() returns a number that represents the input relative to ...
Hello friends! Today we will answer a basic question: what is Arduino, and how do we use it? If you have seen projects that read a sensor, flash an LED or move a small motor, you have probably encountered an Arduino board. This introduction explains the board, the program and the surrounding circuit as separate parts of one system. Libraries Arduino Simulation Libraries Arduino boards: UNO · Mega 2560 · Mega 1280 · Nano · Pro Mini · Mini (V4.0) All six V4.0 boards in one package: Arduino Library for Proteus V4.0 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 We will use the classic Arduino Uno R3 as ou ...
Hello friends! Today, we will install the Arduino LilyPad library for Proteus and prepare a small simulation to check the installation. This article continues our earlier Arduino library tutorial , with particular attention to the LilyPad and Nano parts included in this older library package. Updates Arduino Lilypad Library for Proteus Latest version: V1.0 (December 2014, this tutorial) Other Arduino boards: UNO · Mega 2560 · Mega 1280 · Nano · Pro Mini · Mini (V4.0) All six V4.0 boards in one package: Arduino Library for Proteus V4.0 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 We will start by iden ...
Hello friends! If you are developing an embedded project and need help with its firmware, The Engineering Projects can discuss your microcontroller programming requirements with you. Your project may involve a new prototype, a circuit that is not responding correctly or an existing program that needs a clearly defined improvement. Useful programming work starts with understanding the hardware and the required behaviour. A sentence such as “control a motor with a sensor” describes an idea, but it does not yet define a complete system. We need to know which motor, which sensor, how quickly the controller must respond and what should happen when a signal disappears. This page explains the types of work you can discuss with us, the information to prepare and the deliverables to agree before de ...
Hello friends! Today, we are starting our microcontroller tutorial series from the basics. Before connecting a PIC, installing a compiler or writing an LED-blinking program, we need to understand what a microcontroller does and how its software interacts with an electrical circuit. Think of a project that reads a push button, changes a pattern of lights and reports its operating state. A microcontroller can coordinate those actions by repeatedly reading inputs, applying programmed rules and updating outputs. The same basic idea appears in sensor loggers, small robots, appliance controls and many other embedded systems. In this series, our detailed hardware example will be the PIC18F452. We will first learn the general ideas, then study that device's connections and development tools. You d ...