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Free Electronics Circuits, Projects and PCB Layouts

  • Home
  • Shop
    • Amplifier PCB
    • Amplifier Board
    • Low Pass Filter Board
  • Electronic circuits
    • Amplifier Circuits
    • Inverter circuit
    • Power supply circuit
    • Simple circuits
    • LED Circuits
    • Hobby electronic circuits
    • Low pass filter circuit
    • Cross Over Circuit
  • Electronic Projects
    • Basic electronics
    • Arduino projects
    • DIY Projects
    • 555 IC Projects
    • CD4017 Projects
    • Solar panel project
    • Esp8266 NodeMCU projects
    • PIC Microcontroller Projects
  • Calculators
    • Audio and sound
      • PMPO to RMS Calculator
      • Subwoofer Test: Online Tone Generator
    • Resistor calculator
      • Resistor Color Code Calculator
      • Series LED Resistor Calculator
      • 4-Digit SMD Resistor Code Calculator
      • Resistor Voltage Drop Calculator: Series and Voltage Divider
      • Parallel Resistor Calculator: Total Resistance with Formula & Examples
      • Voltage Divider Calculator
      • Ohms Law Calculator
    • Capacitor calculator
      • Capacitor uf nf pf Conversion Calculator
      • pF to uF Converter
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    • Battery calculator
    • 555 IC calculator
      • 555 Astable Multivibrator Circuit Calculator
    • Electrical calculator
      • Amps to Watts Calculator
      • Amps to kVA Calculator
Soldering Mind

Free Electronics Circuits, Projects and PCB Layouts

diy sound reactive led

DIY Sound Reactive LED Music Visualizer with Microphone

moisture sensor

YL-69 Moisture Sensor For Automated Gardening

wire break alarm

Wire Break Alarm Circuit: Buzzer with LED Indication

Door Alarm

Door Alarm Circuit: Sound with LED Indication when Door opens

flasher circuit for bike

DIY Flasher Circuit For Bike and Car

level indicator for water tank

Level Indicator for Water Tank

LED vu meter board

10 LED VU Meter using KA2281 IC Circuit and PCB Layout

high quality bass treble board

Bass Treble Board PCB Layout and Circuit Diagram

Music reactive light board

Music Reactive Lights Works on 230V AC

Continuity Tester with Buzzer Circuit Diagram

Police Siren sound circuit diagram

Police Siren Sound Circuit Diagram

DIY Soldering station

DIY Soldering Station with Temperature control

Stepper motor driver circuit using uln2003

Stepper Motor Driver using ULN2003 IC

Simple metal detector circuit using tda0161 ic

Metal Detector Circuit

voltage detector circuit schematic

Voltage Detector Circuit Schematic Using CD4017 IC

h bridge arduino dc motor control

H Bridge Arduino Motor Driver

electronic bongo

Electronic Bongo Circuit

How to Make ECG Machine Using Arduino

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