Sensor

Simple Metal Detector based CS209ASimple Metal Detector based CS209A

Simple Metal Detector based CS209A

This is a very easy build, simple metal detector circuit, built based on a CS209A IC. The circuit will give…

55 years ago
Load Cell AmplifierLoad Cell Amplifier

Load Cell Amplifier

I've found some interesting schematic of load cell amplifier. As we know, load cell amplifier is pretty expensive with fair…

55 years ago
Touch Alarm SystemTouch Alarm System

Touch Alarm System

Touch alarm circuit is widely used for security, which is installed on the door. The advantages of this alarm is…

55 years ago
LEDs Temperature IndicatorLEDs Temperature Indicator

LEDs Temperature Indicator

A well-known IC LM35 is chosen to be the temperature sensor in this circuit. Output voltage of LM35 will increase…

55 years ago
Tone Detector / Sound Activated SwitchTone Detector / Sound Activated Switch

Tone Detector / Sound Activated Switch

The following circuit diagrams are tone detector circuit diagrams which also known as sound activated switch circuit. Actually, these circuits …

55 years ago
Dark and Light Activated RelayDark and Light Activated Relay

Dark and Light Activated Relay

This is the basic dark and light sensor which using photoresistor as sensing component. The transistor act like as a…

55 years ago
Color DetectorColor Detector

Color Detector

This is the color detector / sensor circuit diagram. This circuit will sense eight colors that are: green, red and…

55 years ago
Touch SwitchTouch Switch

Touch Switch

Turn on and turn off your electrical devices using touch switch, so you can "play" your electronic devices more fun..…

55 years ago
Flame, gas and smoke detectorFlame, gas and smoke detector

Flame, gas and smoke detector

Flame, gas and smoke detector for fire alarm. You can combine this circuit with alarm circuit. The output will be…

55 years ago
Simple Fire Alarm with Thermistor and NE555Simple Fire Alarm with Thermistor and NE555

Simple Fire Alarm with Thermistor and NE555

The following circuit is a simple fire alarm circuit based NE555 timer and use thermistor as a temperature detector. This…

55 years ago