• Skip to main content
  • Skip to primary sidebar

Homemade Circuit Projects

Need circuit help? Post them in the comments! I've answered over 50,000!

Blog | Categories | About | Contact | Calculators-online
You are here: Home / Archives for Sensors and Detectors

Sensors and Detectors

Arduino Barometric Pressure Sensor Circuit – Working and Interfacing Details

Last Updated on November 25, 2023 by Swagatam 4 Comments

P 20161024 002151

In this article we are going to explore, what is a Barometer and how to interface a barometric BMP180 sensor with Arduino. We will also be exploring some of its important specification and finally I have explained how to predict weather using barometric readings. What is Barometer? Barometer is an instrument for measuring atmospheric pressure. […]

Filed Under: Sensors and Detectors Tagged With: Arduino, Barometric, Interfacing, Pressure, Sensor, Working

LPG Leakage SMS Alert using MQ-135 – Get Warning Message in your Cellphone

Last Updated on September 11, 2019 by Swagatam 4 Comments

GSM

In this article I will show how to construct an GSM based LPG leakage SMS alert circuit using Arduino, which alerts the recipient via SMS and surrounding people via beep, when LPG gas leaks out from the LPG cylinder or if there’s leakage due to improperly closed valve. Using MQ-135 as the Sensor We are […]

Filed Under: Sensors and Detectors Tagged With: 135, Alert, Leakage, LPG, MQ, SMS

MQ-135 Air Quality Sensor Circuit – Working and Interfacing with Program Code

Last Updated on August 9, 2019 by Swagatam 17 Comments

In this article I have explained how to interface air quality sensor MQ-135 with Arduino. We will see overview of the sensor and construct a project which detects LPG gas leakage and see some relevant readings in serial monitor. What is MQ-135 sensor? MQ-135 is an air quality or air pollution measuring sensor device. It […]

Filed Under: Sensors and Detectors Tagged With: 135, Interfacing, MQ, Quality, Sensor, Working

How to Make a Transformer Winding Counter Circuit

Last Updated on June 23, 2019 by Swagatam 17 Comments

In this post I have explained how to make a simple transformer winding counter circuit using ordinary LEDs and also through an advanced digital display circuit. The idea was requested by one of the dedicated readers of this blog Circuit Objectives and Requirements I want a circuit which counts a number of turns for winding […]

Filed Under: Sensors and Detectors Tagged With: Counter, Transformer, Winding

Deep Soil Metal Detector Circuit – Ground Scanner

Last Updated on January 1, 2019 by Swagatam 17 Comments

fig1

In this post I have explained a simple deep under soil metal detector circuit for evaluating hidden metals such as gold, iron, tin, brass etc by detecting change in the resistance of the relevant soil layers. Bigger physical objects which might be buried within the topsoil could be unveiled through a modification in the electrical […]

Filed Under: Sensors and Detectors Tagged With: Deep, Detector, Ground, Metal, Scanner, Soil

2 Simple Arduino Temperature Meter Circuits Explored

Last Updated on January 19, 2025 by Swagatam 7 Comments

LEDThermometerpic

In this article, I will show how to construct a couple of easy Arduino temperature meter circuits which can be also used as a LED room thermometer circuit. The circuit is designed to display the readings in doted/bar LEDs. This project can be implemented for applications where ambient temperature plays a crucial role or it […]

Filed Under: Sensors and Detectors Tagged With: Arduino, Circuits, Explored, Meter, Simple, Temperature

  • « Go to Previous Page
  • Page 1
  • Interim pages omitted …
  • Page 6
  • Page 7
  • Page 8
  • Page 9
  • Page 10
  • Interim pages omitted …
  • Page 17
  • Go to Next Page »

Primary Sidebar




Subscribe to New Posts

Categories

  • Arduino Projects (88)
  • Audio and Amplifier Projects (132)
  • Automation Projects (17)
  • Automobile Electronics (101)
  • Battery Charger Circuits (83)
  • Datasheets and Components (104)
  • Electronics Theory (143)
  • Free Energy (37)
  • Games and Sports Projects (11)
  • Grid and 3-Phase (19)
  • Health related Projects (25)
  • Home Electrical Circuits (12)
  • Indicator Circuits (14)
  • Inverter Circuits (88)
  • Lamps and Lights (142)
  • Meters and Testers (69)
  • Mini Projects (46)
  • Motor Controller (64)
  • Oscillator Circuits (27)
  • Pets and Pests (15)
  • Power Supply Circuits (108)
  • Remote Control Circuits (50)
  • Security and Alarm (64)
  • Sensors and Detectors (101)
  • Solar Controller Circuits (59)
  • Temperature Controllers (42)
  • Timer and Delay Relay (49)
  • Transmitter Circuits (29)
  • Voltage Control and Protection (38)
  • Water Controller (36)

Tags

Alarm Amplifier Application Arduino Automatic Battery Charger Circuits Control Controlled Controller Current Datasheet DC Detector Digital Driver Electronic Explained Explored Generator High Indicator Inverter Lamp LED Light Meter Motor Pinout Power Regulator Remote Sensor Simple Single Solar Supply Switch Timer Transistor Voltage Water Watt Working




Other Links

  • Privacy Policy
  • Cookie Policy
  • Disclaimer
  • Copyright
  • Videos
  • Sitemap




People also Search

555 Circuits | 741 Circuits | LM324 Circuits | LM338 Circuits | 4017 Circuits | Ultrasonic Projects | SMPS Projects | Christmas Projects | MOSFETs | Radio Circuits | Laser Circuits | PIR Projects |

Social Profiles

  • Twitter
  • YouTube
  • Instagram
  • Pinterest
  • My Facebook-Page
  • Quora
  • Stack Exchange
  • Linkedin



  • Recent Comments

    • Swagatam on 10 Useful Active Filter Circuit Diagrams Explored
    • Swagatam on Treadmill Motor Speed Controller Circuit
    • Swagatam on IC 741 Power Supply Circuits
    • Swagatam on Simple Capacitive Discharge Ignition (CDI) Circuit
    • Paul Hess on 10 Useful Active Filter Circuit Diagrams Explored

    © 2025 · Swagatam Innovations