• 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 Hand

Hand

Ultrasonic Hand Sanitizer Circuit

Last Updated on October 4, 2020 by Swagatam 3 Comments

HC SR04 Ultrasonic Sensor

The ultrasonic hand sanitizer circuit detects the presence of human hand through reflected ultrasonic waves, and triggers a relay solenoid pump momentarily for dispensing the sanitizing liquid on the hands of the user. The project uses the popular HC-SR04 ultrasonic sensor module for the required sensing function. Using HC-SR04 The HC-SR04 ultrasonic sensor module is […]

Filed Under: Health related Projects Tagged With: Hand, Sanitizer, Ultrasonic

Automatic Hand Sanitizer Circuit – Fully Contactless

Last Updated on January 3, 2024 by Swagatam 128 Comments

hand saitizer dispenser

In this article I have explained how to make a low cost yet fully automatic hand sanitizer dispenser circuit which will allow a touch-free or contactless dispensing of the sanitizing liquid on the user’s hands. This contactless hand sanitizer circuit facilitates the user to access the sanitizing liquid on hands automatically without the need of […]

Filed Under: Health related Projects, Automation Projects Tagged With: Automatic, Contactless, Fully, Hand, Sanitizer

Super Capacitor Hand Cranked Charger Circuit

Last Updated on March 15, 2019 by Swagatam 7 Comments

supercapacitorchargercircuit

In this post I have explained a simple super capacitor hand cranked charger circuit using bridge rectifier which may be applied for charging a bank of super capacitors through any suitable hand cranked generator machine. The idea was requested by Mrs. Janet Prevent Reverse Discharge in Super Capacitors For a DIY project I bought a […]

Filed Under: Solar Controller Circuits Tagged With: Capacitor, Charger, Cranked, Hand, Super

Making a “Helping Third Hand” for Aiding Soldering Jobs

Last Updated on January 1, 2024 by Swagatam 12 Comments

In this post I have explained a step by step construction of a “helping third hand” unit for assisting PCB soldering jobs in order to make the job much hassle free. The gadget could be very handy especially for the new hobbyists. The project was constructed and submitted by Master Ss kopparthy. I have explained […]

Filed Under: Temperature Controllers Tagged With: Aiding, Hand, Helping, Making, Soldering, Third

Primary Sidebar

circuit simulator image



Categories

  • Arduino Projects (89)
  • 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 (102)
  • Solar Controller Circuits (59)
  • Temperature Controllers (42)
  • Timer and Delay Relay (49)
  • Transmitter Circuits (29)
  • Voltage Control and Protection (40)
  • Water Controller (36)



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 White Noise and Pink Noise Generator Circuit
    • Swagatam on Make this DC CDI Circuit for Motorcycles
    • David on White Noise and Pink Noise Generator Circuit
    • Tony on Make this DC CDI Circuit for Motorcycles
    • Swagatam on Make this DC CDI Circuit for Motorcycles

    © 2025 · Swagatam Innovations