Category: Electronics

Heart Beat Monitoring using PIC Microcontrolle…

Heart Beat Monitoring using PIC Microcontroller and Pulse Sensor

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

DIY Coil Gun

DIY Coil Gun

The basic principle behind a Coil Gun is that a current carrying conductor will induce a magnetic field around it, which was stated by Faraday. To improve the strength of this magnetic field the current carrying conductor is wound in form of a coil. Now, when this coil is powered it produces a magnetic field around it which is strong enough to attract metal (or other Ferro magnetic) pieces a.k.a projectiles into it.

DIY tutorial: https://circuitdigest.com/electronic-circuits/diy-simple-coil-gun

Helping @sorryaboutyourcats with happy hatty f…

Helping @sorryaboutyourcats with happy hatty fun times! #sorryaboutyourhats

#oof #letsrobot #Robot #robotics #electronics #raspberrypi #adafruit #servo #make #makersgonnamake #hat #wcgw #slap #robots #programming #lol
https://www.instagram.com/p/BoxSTikATxY/?utm_source=ig_tumblr_share&igshid=128f6aogkylyr

Circuit Digest 2018-10-04 11:41:40

Smart Phone Controlled Arduino Mood Light with Alarm

I recently purchased the NeoPixel LED strip and was quite impressed by the way it works. The tiny LED’s have an inbuilt driver IC which helps us to control each LED individually and can produce a wide spectrum of colors. Being a garish person who is obsessed with colours I really loved watching these tiny LED’s changing colors so I decided to build something on my own and leave it coloring my bedroom during night times.

IR based Wireless Audio Transmitter and Receiv…

IR based Wireless Audio Transmitter and Receiver Circuit

Today in this Article, we will learn how to build a Crude Wireless Audio Transfer Circuit Using IR LEDs. Using this circuit you should be able to play songs from your IPod, mobile or computer to an external speaker without having to connect them directly though an AUX cable. The circuit comes with many limitations and there are better ways like Bluetooth to play songs wirelessly, hence this article only aims to help you understand simple audio circuits and at the same time have fun building it.

Check out the complete project, here: https://circuitdigest.com/electronic-circuits/ir-based-wireless-audio-transmitter-and-receiver-circuit-diagram

Raspberry Pi Based Jarvis themed Speaking Alar…

Raspberry Pi Based Jarvis themed Speaking Alarm Clock

“Good morning. It’s 7:00 a.m. The weather in Malibu is 72 degrees with scattered clouds. The surf conditions are fair with waist-to-shoulder high lines. High tide will be at 10:52 a.m”. Every time I hear this voice of Jarvis in the movie Iron Man it sends me chills down my spine. I am sure just like me many would have dreamt of living a life as sophisticated as Tony Stark. But sadly we have not advanced with technology for a miniature Arc reactor or an AI as smart as JARVIS. But it is possible to replace our boring morning alarm clocks with the one that is similar to Jarvis using a Raspberry Pi. At the end of this project, we will create a very basic GUI using which we can set an alarm and when the alarm goes on we will have a voice which tells us the current time and day with some pre-defined text. Sounds cool right!! So let us build one: https://circuitdigest.com/microcontroller-projects/raspberry-pi-based-jarvis-themed-speaking-alarm-clock

IoT Based Patient Monitoring System using ESP8…

IoT Based Patient Monitoring System using ESP8266 and Arduino

Here in this project, we will make an IoT based Health Monitoring System which records the patient heart beat rate and body temperature and also send an email/SMS alert whenever those readings goes beyond critical values. Pulse rate and body temperature readings are recorded over ThingSpeak and Google sheets so that patient health can be monitored from anywhere in the world over internet. A panic will also be attached so that patient can press it on emergency to send email/sms to their relatives.

Check out the project details here: https://circuitdigest.com/microcontroller-projects/iot-based-patient-monitoring-system-using-esp8266-and-arduino

What is PWM

What is PWM

While ADC is used to read Analog signals by a digital device like microcontroller. A PWM can be considered as an exact opposite of it, PWM is used to produce Analog signals from a digital device like microcontroller. In this article we will learn about what is PWM, PWM signals and some parameters associated with it, so that we will be confident in using them in our designs.

Learn about the PWM signals, here: https://circuitdigest.com/tutorial/what-is-pwm-pulse-width-modulation

Thermal Printer interfacing with PIC16F877AIn …

Thermal Printer interfacing with PIC16F877A

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

Interfacing 3.5 inch Touch Screen TFT LCD wi…

Interfacing 3.5 inch Touch Screen TFT LCD with Raspberry Pi

The pi itself has a HDMI output which can be directly connected to a Monitor, but in projects where space is a constrain we need smaller displays. So in this tutorial we will learn how we can interface the popular 3.5 inch Touch Screen TFT LCD screen from waveshare with Raspberry pi. At the end of this tutorial you will have a fully functional LCD display with touch screen on top of your Pi ready to be used for your future projects.

Check out the complete tutorial: https://circuitdigest.com/microcontroller-projects/interfacing-3.5-inch-touchscreen-tft-lcd-with-raspberry-pi