• 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 » Mini Projects » Page 48

Mini Projects

Simple Bedwetting/Wet Diaper Alert Circuit

Last updated on 1 June 2026 by Admin-Lavi Leave a Comment

Simple Bedwetting/Wet Diaper Alert Circuit is one special electronic helper!; it know when someone pee in bed or diaper and then it make sound like doorbell ding ding! So parents or helper can know fast and come for help, it is also good for kids who pee in bed at night or people who need […]

Filed Under: Alarm Circuits, Mini Projects, Sensors and Detectors

Simple LED Tester Circuit

Last updated on 1 June 2026 by Admin-Lavi Leave a Comment

This small and Simple LED Tester Circuit is like a small doctor for a LED, it helps to see if our light LED is working or not. Think like a small design for one battery, some small resistor like tiny traffic light for electric and clip to put LED; but when we put LED in […]

Filed Under: DIY Projects, LED and Lamps, Meters and Testers, Mini Projects

Using a Reed Switch as a Current Monitor Circuit

Last updated on 31 May 2026 by Admin-Lavi Leave a Comment

Reed switch is small switch which works with magnet and when wire is near it has current and it makes magnetic field. This magnetic field turns the reed switch ON or OFF, depending on its design and it also helps us show whether current is present or not. Circuit Working: Parts List: Components Values Quantity […]

Filed Under: Indicator Circuits, LED and Lamps, Mini Projects, Sensors and Detectors

Simple Water Softener Circuit

Last updated on 31 May 2026 by Admin-Lavi Leave a Comment

In this post we will give all easy information about Simple Water Softener Circuit, as this one small device we can put on our water pipe which will help to make hard water to become soft. Hard water make white stuff build up in pipe and machine and this make them not work good and […]

Filed Under: 555 Timer Projects, Automation Circuits, DIY Projects, Mini Projects, Oscillator Circuits, Water Level Controller

Transistor 2N3055 Circuit with 1.5 Million High Gain

Last updated on 31 May 2026 by Admin-Lavi Leave a Comment

Transistor 2N3055 Circuit with 1.5 Million High Gain is like normal volume knob it can make sound more but not too much and if we want very loud like 1.5 million we need to trick it little bit. One way uses two transistors together like a double volume knob. People also call this arrangement a […]

Filed Under: Amplifier Circuits, Hobby Circuits, Mini Projects, Transistor Circuits

How to Increase Voltage Output of 7812,7805 ICs

Last updated on 31 May 2026 by Admin-Lavi Leave a Comment

It is useful to understand How to Increase Voltage Output of 7812,7805 ICs, but this approach is not always a good idea. These ICs provide fixed output voltages by design, with the 7812 producing 12 V and the 7805 producing 5 V. Better way is this: if we want other voltage just buy other voltage […]

Filed Under: Mini Projects, Power Supply Circuits, Voltage Regulator

  • « Go to Previous Page
  • Page 1
  • Interim pages omitted …
  • Page 46
  • Page 47
  • Page 48
  • Page 49
  • Page 50
  • Interim pages omitted …
  • Page 66
  • Go to Next Page »

Primary Sidebar




Categories

  • 555 Timer Projects (137)
  • Alarm Circuits (81)
  • Amplifier Circuits (94)
  • Arduino Projects (103)
  • Audio Circuits (190)
  • Automation Circuits (150)
  • Automobile Circuits (40)
  • Battery Charger Circuits (89)
  • DIY Projects (437)
  • Free Energy (12)
  • Heater and Temperature Controllers (32)
  • High Voltage (24)
  • Hobby Circuits (244)
  • Indicator Circuits (63)
  • Inverter Circuits (17)
  • IoT projects (12)
  • LDR Circuits (47)
  • LED and Lamps (201)
  • Meters and Testers (44)
  • Mini Projects (392)
  • Motor Controllers (26)
  • Oscillator Circuits (70)
  • Power Supply Circuits (245)
  • Radio Frequency (8)
  • Remote Control Circuits (12)
  • Renewable energy (20)
  • Security and Protection (128)
  • Sensors and Detectors (236)
  • Solar Circuits (31)
  • Timer Circuits (63)
  • Transistor Circuits (178)
  • Transmitter Circuit (19)
  • Tutorials (33)
  • Voltage Regulator (67)
  • Water Level Controller (10)

Recent Posts

  • Low Current Controlled Battery Charger Circuit using LM723 IC
  • 741 Op-Amp Treble Booster Circuit
  • Simple Diode and Transistor Based Audio Limiter Circuit
  • Simple 500mW Speaker Driver Circuit
  • Easy DIY LM386 Audio Amplifier Circuit

Recent Comments

  1. Admin-Lavi on High Voltage Fence Charger Circuit
  2. etere on High Voltage Fence Charger Circuit
  3. Admin-Lavi on High Voltage Fence Charger Circuit
  4. egidio grzinic on High Voltage Fence Charger Circuit
  5. Logic OR Gate Circuit using Transistors - Circuit Ideas for You on Automatic Street Light Circuit using LDR

Copyright © 2026 | New Circuit Ideas