In this tutorial, we will explore how to interface a DHT11 sensor with a PIC16F877A microcontroller and display the temperature and humidity readings on an I2C LCD display . The DHT11 is a basic, low-cost digital temperature and humidity sensor, …
Stepper motors are widely used in applications requiring precise control of motion, such as robotic car, CNC machines, and 3D printers. In this guide, we will walk through how to control a stepper motor using the PIC16F877A microcontroller. The PIC…
Servo motors play a crucial role in robotics due to their ability to control angular movement with precision. From robotic arms to remote-controlled vehicles, servos offer the exactness needed for controlled, smooth movements. In this blog post, w…
The I2C (Inter-Integrated Circuit) bus is a popular communication protocol used for connecting various peripherals to microcontrollers. One of the challenges when working with I2C devices is identifying their addresses. In this tutorial, we will exp…
Timers are essential components in microcontroller-based projects, as they allow for precise timekeeping and event scheduling without the need for manual delays, which can block other processes. The PIC16F877A microcontroller has three timers— Tim…
In the previous blog post Interfacing LCD with PIC16F877A: Displaying Sensor Data it was shown how to interface a 16x2 LCD with PIC16F877A and alike PIC microcontroller. In that post, circuit diagram and program code for communicating with the LCD…
In embedded systems, Liquid Crystal Displays (LCDs) are widely used for displaying information such as sensor data, real-time clock values, or simple text-based messages. One of the most common LCD modules used with microcontrollers like the PIC16F8…
Pulse Width Modulation (PWM) is a powerful technique used to control motors, lights, and other devices by varying the duty cycle of a digital signal. In this blog post, we’ll explore how to generate PWM signals using the PIC16F877A microcontroller …
The PR2 register in the PIC16F877A is used to set the PWM period, which in turn determines the frequency of the PWM signal. See the following simplified PWM block diagram of the PIC16F877A microcontroller. To calculate the correct PR2 value for a…
The PIC16F877A can generate PWM (Pulse Width Modulation) signals using its CCP (Capture/Compare/PWM) module. The CCP module in this microcontroller is versatile, and it provides features to generate both PWM signals as well as perform capture and…
