The sensitivity of the proximity sensor circuit can be adjusted with P1 for the desired “distance”. One of its obvious uses is to open a door automatically. For this the sensor must be placed on the ...

A reliable indicator of the air quality in offices, classrooms, or living rooms is the CO2 content. In fresh air, the ...

Ultra simple circuit of the tilt sensor alarm presented here can be fabricated using readily available inexpensive components. The circuit is a true transistor based design. Home made Tilt sensor for ...

This idea describes an MCU interface for a 1-Wire temperature sensor interface that offers high accuracy while using less board space. The circuit can be modified for use with any 1-Wire device. The ...

Here’s your useful and beautiful circuit for the day — [New Pew]’s vibration sensor takes manual control of the flip-flop inside a 555 timer and lights an LED in response. Use it to detect those ...

The first step can often be the most important in any design activity. It certainly is true when engineers work to integrate sensors into their product development process. Here, the first step is the ...

Most electronic engineers know that a transistor’s base-emitter voltage (V BE) has a temperature coefficient (TC) of about -2 mV/°C. However, for precision temperature sensors, “about” isn’t good ...

Toshiba Electronic Devices & Storage Corporation ("Toshiba") has launched " TCD2400DG ," a lens-reduction type [1] CCD [2] linear image sensor developed expressly for line scan cameras [3] used in ...