Microcontroller Projects: Home Automation System
In this era of digital revolution, we are surrounded by smart devices that are capable of making decisions on their own without much human...
Microcontroller-Based Tachometer
A tachometer is nothing but a simple electronic digital transducer. Normally, it is used for measuring the speed of a rotating shaft. The number...
Moving Message Display On LCD
A moving message display is ideal to get your message (advertisements, greetings, etc) across in an eye-catching way. You can make an LCD show...
Microcontroller Based Clock Using DS1307
Digital wall clocks, table clocks and desk clocks with pointer or LCD display are readily available in the market. Here we present a microcontroller...
Phase Angle Control Of SCR Using AT89C51
Silicon-controlled rectifiers (SCR) are solidstate semiconductor devices that are usually used in power switching circuits. SCR controls the output signal by switching it ‘on’...
Bhajan and Mantra Chanting Amplifier
People in India like to chant various mantras as they believe it brings good luck, peace of mind and helps in concentration. Here we...
Infrared Proximity Detector
This infrared proximity detector using an infrared detector can be used in various equipment like automatic door openers and burglar alarms. Check it out...
Simple Soldering Iron Temperature Regulator
Soldering irons are available in different wattage and usually run at 230V AC mains. However, these have no temperature control. Low-voltage soldering irons (e.g.,...
Tachometer
Non-Contact Type Digital Tachometer
Low-Cost Tachometer
Simple Tachometer
DIY Tachometer built with a Microcontroller.
The article was originally published in December 2010...
Auto Reset Proximity Detector
Electrochemical processes taking place in our body generate complex signals (hum) that are continuously being passed along the nerve fibres throughout the body. Any...
