Heart Beat rate is most important parameter in monitoring any person’s health. In the modern era of wearable devices, there are lot of devices which can measure heartbeat, blood pressure, footsteps, calories burnt and lot of other things. These devices has pulse sensor inside them to sense the pulse rate. Today, we will also use a pulse sensor with PIC Microcontroller to count heart beat per minute and the Inter-Beat Interval, these values will be further displayed on 16×2 character LCD. We will use PIC16F877A PIC microcontroller in this project. Check out the complete project here: https://circuitdigest.com/microcontroller-projects/heartbeat-monitoring-using-pic-microcontroller-and-pulse-sensor
In this tutorial, we will interface a thermal printer CSN A1 with widely used PIC microcontroller PIC16F877A. Here in this project, a thermal printer is connected across PIC16F877A and a tactile switch is used to start the printing. A notification LED is also used to notify the printing status. It will glow only when the printing activity is going on.
Check the complete project details: https://circuitdigest.com/microcontroller-projects/thermal-printer-interfacing-with-pic16f877a
To read the Passive RFID cards and tag, we need a microcontroller with UART hardware. If we select a microcontroller without UART, we need to implement software UART. Here we are using PIC Microcontroller PIC16F877A for interfacing RFID. We will simply read the unique identification no. of RFID tags and display it on 16×2 LCD.
Check out the complete tutorial: https://circuitdigest.com/microcontroller-projects/rfid-interfacing-with-pic-microcontroller-pic16f877a
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This alarm clock will have an 16×2 LCD display which will display the current time and set time. We will use few push buttons to set the alarm time whenever required. The current time will be kept in track using the DS3231 RTC module and we will use IIC communication to get these values from the RTC module
We are going to use G7020 GPS module which is made by U-blox. We will receive Longitude and latitude of a particular position from satellite and will display the same on a 16×2 Character LCD. So here we will interface GPS with PIC16F877A microcontroller by microchip.
High and Low Voltage Protection Circuit will cut off the power supply to the appliances in case of High or Low voltage. It will also show a alert message on 16×2 LCD. In this project, we have used PIC Microcontroller to read and compare the input voltage to the reference voltage and take the action accordingly.
In this project you will be able to toggle (ON/OFF) any AC load using an ordinary Remote from the comfort of your Chair/Bed. To make this project more interesting we have also enabled a feature to control the speed of the fan with the help of Triac. All these can be done with simple clicks on your IR remote. You can use any of your TV/DVD/MP3 remote for this project. The different IR signals from the remote are received by the microcontroller which then controls the respective relays via a relay driver circuit. These relays are used to connect and disconnect the AC Loads (Lights/Fan).
In our previous tutorial we learnt how to generate PWM signals using PIC Microcontroller, the signals were generated based on the value read from the potentiometer. If you have understood all programs then, Congratulations you have already coded for a Servo motor also. YES, Servo motors respond to the PWM signals (which we create using timers here) we will learn why and how in this tutorial. We will simulate and build the hardware setup for this project and you can find the detailed Video at the end of this Tutorial.