• 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
Home » Page 13

Simple 3.6V High Power LED Torch Circuit

Last updated on 9 February 2026 by Admin-Lavi Leave a Comment

This article is about Simple 3.6V High Power LED Torch Circuit. It uses a 3.6V battery and is easy to build and the circuit is very easy to understand. The circuit uses only LEDs, one resistor, a switch and a battery. So beginners can also try this circuit and moreover, this circuit gives strong light. […]

Filed Under: LED and Lamps

Simple Over-Temperature Warning Indicator Circuit

Last updated on 7 February 2026 by Admin-Lavi Leave a Comment

This circuit is for Simple Over-Temperature Warning Indicator Circuit using an LED. It is very simple and is with low cost as it uses few easily available components. The circuit turns ON an LED when temperature rises above a set level like 45°C – 55°C. Therefore, it is useful for basic thermal warning. This circuit […]

Filed Under: Heater and Temperature Controllers, Indicator Circuits

Arduino Flash Trigger Circuit with Sound Sensor

Last updated on 6 February 2026 by Admin-Lavi Leave a Comment

Nowadays, electronics projects are becoming very popular, especially Arduino based projects are easy to build, because of this the beginners also feel confident. In this project an Arduino is used to trigger a camera flash, the trigger happens when a sound is detected. So Arduino Flash Trigger Circuit with Sound Sensor is very useful for […]

Filed Under: Arduino Projects, Sensors and Detectors

Solar Cell Based Camera Flash Trigger Circuit

Last updated on 6 February 2026 by Admin-Lavi Leave a Comment

Photography flash units need correct timing. However, many old flash units do not have trigger input, so a Solar Cell Based Camera Flash Trigger Circuit is useful. This circuit is very simple as it uses very few components and also it does not need any battery. The circuit works using light only and when a […]

Filed Under: Solar Circuits

12V Boost Converter Circuit from 3.3V to 5V Supply

Last updated on 5 February 2026 by Admin-Lavi Leave a Comment

Nowadays, many electronic projects need higher voltage. However, the available supply is very low for example 3V or 3.3V batteries are common. But many circuits need 12V so, here we have designed a 12V Boost Converter Circuit from 3.3V to 5V Supply. This circuit increases low DC voltage to high DC voltage and therefore, it […]

Filed Under: Power Supply Circuits

Boost Converter Circuit From 5V to 12V using Transistors

Last updated on 5 February 2026 by Admin-Lavi Leave a Comment

Many electronic projects need 12V power, but sometimes only 5V supply is available, for example from USB, logic board or microcontroller. So, here this Boost Converter Circuit From 5V to 12V using Transistors is useful which converts 5V DC to 12V DC. It uses simple components like transistors and inductor, it is with low cost […]

Filed Under: Power Supply Circuits, Transistor Circuits

  • « Go to Previous Page
  • Page 1
  • Interim pages omitted …
  • Page 11
  • Page 12
  • Page 13
  • Page 14
  • Page 15
  • Interim pages omitted …
  • Page 163
  • Go to Next Page »

Primary Sidebar




Categories

  • Alarm Circuits (49)
  • Amplifier Circuits (68)
  • Arduino Projects (101)
  • Audio Circuits (123)
  • Automobile Circuits (22)
  • Battery Charger Circuits (73)
  • Free Energy (13)
  • Heater and Temperature Controllers (18)
  • High Voltage (9)
  • Indicator Circuits (49)
  • Inverter Circuits (20)
  • IoT projects (1)
  • LDR Circuits (30)
  • LED and Lamps (166)
  • Meters and Testers (32)
  • Motor Controllers (22)
  • Oscillator Circuits (44)
  • Power Supply Circuits (155)
  • Remote Control Circuits (10)
  • Security and Protection (32)
  • Sensors and Detectors (137)
  • Solar Circuits (30)
  • Timer Circuits (49)
  • Transistor Circuits (119)
  • Transmitter Circuit (17)
  • Tutorials (8)
  • Water Level Controller (7)

Recent Posts

  • Op-Amp Based Diode Temperature Sensor Circuit
  • IC 741 Based Audible Light Sensor Circuit using LDR
  • Automatic Tone Generator Circuit using LDR and 555 IC
  • Simple LDR Based Light Detector Circuit using Timer 555 IC
  • Automatic Light Sensor Buzzer Circuit using Transistors

Recent Comments

  1. Simple 1.5V Single Cell LED Flasher Circuit - Circuit Ideas for You on Simple 1.5V White LED Flasher Circuit
  2. Peter nichol Pilgrim on Simple Mobile Phone Signal Jammer Circuit
  3. Admin-Lavi on Simple Morse Key Circuit using IC 555
  4. Vladimír Zoch on Simple Morse Key Circuit using IC 555
  5. Admin-Lavi on FM Transmitter Circuit (100 meters range)

Copyright © 2026 | New Circuit Ideas