Hello friends! Today we will control a servo motor with the PIC16F877A and observe its movement in Proteus ISIS. We will begin with the three servo connections, understand the command waveform, and then write a small program that selects positions using two pushbuttons. In the previous tutorials, we explored DC motor direction control and stepper motor sequencing . A positional hobby servo is different because the motor, gearbox, position sensor, and controller are already assembled together. Our PIC requests a position rather than switching the motor windings itself. We will keep the original PIC and button arrangement, but use a repeated control pulse with a sensible frame period. Along the way, we will separate what the simulated angle display tells us from what a physical servo must be ...
Hello friends! In the previous tutorial, we controlled the direction of a DC motor in Proteus . Now we will work with a stepper motor, where rotation depends on applying an ordered sequence to the windings. We will begin with the original six-wire simulation, inspect the sequence manually, and then explain how a microcontroller and driver can generate it. The original screenshots use Logic State sources to make individual winding states visible. They are useful for understanding the sequence, but they are not a physical driver circuit. We will preserve the images and add the missing distinction between simulated logic sources, microcontroller outputs, and the winding-current path. By the end, you should understand unipolar and bipolar wiring, wave drive and half stepping, direction reversa ...
Hello friends! In this tutorial, we will design a DC motor control demonstration in Proteus ISIS and then connect its control logic to a PIC16F877A. We will begin by observing how voltage polarity changes the direction of a simulated motor, then explain the driver stage needed between a microcontroller and a physical motor. The original article used Logic State sources and a simplified direct connection to illustrate direction changes. We will preserve those screenshots, but label their purpose clearly. Logic sources and PIC output pins are not substitutes for a motor power driver. The updated practical interface uses an L293D bridge example, with separate logic and motor supplies. We will also correct the relationship between the original schematic and code, add explicit stopping behavior ...
Hello friends! In this tutorial, we will learn how to use the oscilloscope in Proteus ISIS to inspect waveforms, measure voltage and timing, and compare signals at different points in a circuit. In the previous article, we used Virtual Terminal to read serial characters. The oscilloscope lets us examine the electrical waveform behind a signal instead of only its decoded text. We will retain the original inverter demonstration and its screenshots, but begin with the measurement principles needed to interpret them correctly. A waveform that looks smooth is not automatically a verified pure sine wave, and two traces connected to opposite sides of a load do not automatically display the voltage difference across that load. By the end, you should be able to choose a suitable volts-per-division ...
Hello friends! In this tutorial, we will learn how to use Virtual Terminal in Proteus ISIS to inspect serial data and send simple commands to a simulated circuit. It is particularly useful when working with microcontrollers, GSM modules, GPS receivers, and other devices whose behavior can be understood through a serial interface. We will begin with the simplest arrangement: a simulated microcontroller communicating directly with Virtual Terminal. Then we will return to the original article's COMPIM example, which connects a simulation to a real computer serial port. Keeping those two arrangements separate will help you choose the correct components and avoid unnecessary COM-port problems. The aim is to make serial communication visible before building a larger application around it. We wil ...
Hello friends! In this tutorial, we will explore the components and instruments available in Proteus ISIS and learn how to choose the right item for a circuit. Finding a familiar part name is only the beginning. We also need to know whether it has a simulation model, which properties must be configured, and whether the item belongs to the schematic, the measurement setup, or a later PCB design. This article continues our practical Proteus series after designing an LCD circuit with a PIC microcontroller . We will cover ordinary components, displays, motors, serial tools, and shift registers, then connect each topic to the more detailed tutorials already available in the series. My aim is to help you build a sensible test circuit instead of placing unfamiliar parts and hoping that the simula ...
Hello friends! In this tutorial, we will design a circuit that connects a 16×2 character LCD to a PIC18F452 microcontroller in Proteus ISIS. We will select the components, wire the display, write a small program in mikroC PRO for PIC, load its HEX file into the simulated microcontroller, and display text on both rows. This is a useful first microcontroller simulation because it combines several skills in one manageable circuit: choosing the correct device, matching software pins to schematic wires, setting the clock frequency, and checking the result. If you are new to the workspace, start with our Proteus ISIS and ARES guide , then return here for the practical example. We will preserve the original PORTD connections and two-line website message. The explanation now also covers the LCD co ...
Hello friends! We have prepared our spoken commands in EasyVR Commander , and now we will interface the EasyVR Shield with Arduino Uno. In this tutorial, we will read the recognized command, display its result in Serial Monitor, and select an indicator output for FORWARD, REVERSE, LEFT, RIGHT, or STOP. This is the controller stage of our voice-recognition project . We will preserve the original command order and character codes, while making the program easier to follow and correcting two important problems: listening to the wrong group at startup and leaving previous direction outputs active after a new command. Begin with LEDs or Serial Monitor. The output pins in this example are indicators, not a complete motor-control circuit. Once you can explain every recognized number and output tr ...
Hello friends! In the previous tutorial, we introduced voice recognition using the EasyVR Shield . Now we will prepare the words that our project needs to recognize. We will use EasyVR Commander to connect to the shield, create a command group, train its entries, and test the results before writing the Arduino application. Our example is the same five-command project: FORWARD, REVERSE, LEFT, RIGHT, and STOP. Training these words is only part of the job. We also need to record their group number and individual indexes, because those numbers are what the controller will use to select an action. A well-trained vocabulary with an incorrect software mapping still produces the wrong behavior. The screenshots below come from the original EasyVR setup, so the appearance of a newer Commander releas ...
Hello friends! In this tutorial, we will look at voice recognition using the EasyVR Shield and plan a small Arduino project that responds to spoken commands. The idea is straightforward: we say a command such as FORWARD, the speech module identifies it, and our program decides what should happen next. Before connecting a robot, however, we need to understand what the module actually returns and how those results become reliable control decisions. This article introduces the voice-controlled robot project that started this series. We will keep its five commands, explain the hardware and training workflow, and build a clear plan for testing. The detailed training procedure is covered in Getting Started with EasyVR Commander , followed by the practical program in Interfacing of EasyVR with Ar ...
