The circuit diagram is based around the use of the emblematic LM358 IC (IC1-A), ... IC1 output (pin 1) should give a short-negative pulse when the sensor is tapped. Note that, it is recommended to ...

3. The timing diagram shows a pulse train being generated; the yellow pulse stays high during the pulse train transmission. To test the MCU program, the circuit includes a 3-digit BCD counter ...

Breathing is one of the most vital signs of health, yet most methods to monitor it are bulky and uncomfortable. A new study ...

When the circuit is powered by a 9V compact battery, the active piezo-sounder at the output of IC1 starts beeping for a short time and then goes into idle state. Whenever, the pressure sensor element ...