Today I made my first autonomous robot car which is a modification of the my first Arduino RC Car . Until now, I used bluetooth for control navigation of the diy Arduino robomaster. Now, I wanted to add autonomous driving feature to the robot car because I thought it would be great exper…
When working on embedded projects with the PIC16F877A microcontroller, there are scenarios where you need to store data that persists even when the power is turned off. For instance, storing user settings, sensor calibration data, or non-volatile da…
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…
In embedded systems, communication between microcontrollers and external devices is crucial. One of the most common protocols used for this is UART (Universal Asynchronous Receiver/Transmitter) . It allows the PIC16F877A microcontroller to communica…
Here’s an example of how to use the Analog-to-Digital Converter (ADC) module of the PIC16F877A microcontroller to read an analog signal and display the result via serial communication. ADC Example Code for PIC16F877A (using MPLAB X and XC8): // ADC…
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