• Skip to primary navigation
  • Skip to main content
  • Skip to primary sidebar

Circuit Ideas for You

Get free circuit ideas online.

  • Home
  • Privacy Policy
  • About

Sensors and Detectors

Home » Sensors and Detectors » Page 3

Water Quality Test Circuit using Arduino and Turbidity Sensor

Last updated on 11 September 2025 by Admin-Lavi Leave a Comment

Water looks clean but can hide dirt we cannot see. Tiny dust, clay and silt make water cloudy. This cloudy thing is called turbidity. More turbidity means more dirt and bad water. Less turbidity means clean and safe water. This project uses Arduino and turbidity sensor to check water. It shows result on LCD and […]

Filed Under: Arduino Projects, Indicator Circuits, Sensors and Detectors

Arduino with Non Contact Liquid Sensor Circuit

Last updated on 11 September 2025 by Admin-Lavi Leave a Comment

Arduino with Non Contact Liquid Sensor Circuit is useful to detect water or any liquid without touching it. It is called contactless sensor. It works on capacitance change near container wall. Sensor sense water inside plastic or glass without direct contact. It is safe, easy and clean project one should give it a try for. […]

Filed Under: Arduino Projects, Sensors and Detectors

Sound Sensor Circuit using IC LM393

Last updated on 10 September 2025 by Admin-Lavi Leave a Comment

Sound follows us in every moment of our life. Wherever we go sound travels with us. Sometimes we need a small electronic circuit that can sense sound and give output. A sound sensor is useful in many projects like clap switch, voice controlled light, sound activated alarm, toys and automation systems. This article explains a […]

Filed Under: Sensors and Detectors

Sound Sensor Direction Circuit using Arduino

Last updated on 9 September 2025 by Admin-Lavi Leave a Comment

Sound is everywhere. Sometimes we want to know from which side sound comes. Example in robot or in security. With Arduino and some sound sensor we can find sound direction. In this circuit we used four sound sensors and one OLED display with Arduino. OLED show which side sound comes. This project for Sound Sensor […]

Filed Under: Arduino Projects, Sensors and Detectors

Dancing Water Fountain Circuit with Arduino

Last updated on 9 September 2025 by Admin-Lavi Leave a Comment

Dancing Water Fountain Circuit with Arduino is small project where water moves like dance when music is played. Sound sensor listen music beat and Arduino controls the motor pump. Pump push water up and down in rhythm of sound. With some LED light it look very beautiful like mini musical fountain at home. Circuit is […]

Filed Under: Arduino Projects, Sensors and Detectors

Arduino Based Obstacle Avoidance Robot Circuit

Last updated on 9 September 2025 by Admin-Lavi Leave a Comment

This project is for making a small robot car. Robot can move and avoid obstacle on road. It uses Arduino Uno, ultrasonic sensor HC-SR04, motor driver L293D and two DC motors. This Arduino Based Obstacle Avoidance Robot Circuit is simple and good for beginners. Robot check distance with ultrasonic sensor. If obstacle is near then […]

Filed Under: Arduino Projects, Sensors and Detectors

  • « Go to Previous Page
  • Page 1
  • Page 2
  • Page 3
  • Page 4
  • Page 5
  • Interim pages omitted …
  • Page 17
  • Go to Next Page »

Primary Sidebar




Categories

  • Alarm Circuits (34)
  • Amplifier Circuits (67)
  • Arduino Projects (59)
  • Audio Circuits (98)
  • Automobile Circuits (19)
  • Battery Charger Circuits (50)
  • Free Energy (13)
  • Heater and Temperature Controllers (10)
  • High Voltage (1)
  • Indicator Circuits (41)
  • Inverter Circuits (15)
  • LDR Circuits (17)
  • LED and Lamps (119)
  • Meters and Testers (29)
  • Motor Controllers (18)
  • Oscillator Circuits (34)
  • Power Supply Circuits (93)
  • Remote Control Circuits (7)
  • Security and Protection (26)
  • Sensors and Detectors (98)
  • Solar Circuits (20)
  • Timer Circuits (31)
  • Transistor Circuits (57)
  • Transmitter Circuit (14)
  • Tutorials (5)
  • Water Level Controller (4)

Recent Posts

  • Simple Solar Light Circuit
  • DIY Solar Battery Charger Circuit
  • Simple Solar Mobile Charger Circuit
  • Simple 3.7V DC to 220V AC Inverter Circuit
  • Smart Energy Meter Circuit with Arduino UNO

Recent Comments

  1. Admin-Lavi on Constant Voltage, Constant Current Battery Charger Circuit
  2. Bill on Constant Voltage, Constant Current Battery Charger Circuit
  3. Admin-Lavi on Long Range FM Transmitter Circuit (2km)
  4. Sina on Long Range FM Transmitter Circuit (2km)
  5. Admin-Lavi on Long Range FM Transmitter Circuit (2km)

Copyright © 2025 | New Circuit Ideas