This is a simple rain sensor circuit which can be built by a school grade student very easily and can be used for displaying its relatively useful feature, probably among his friends or in a science fair exhibition. Using IC 555 as the Comparator The circuit is basically rigged using IC 555 as a comparator […]
Newly Updated Circuit Projects:
Exploring Current Mirror Circuits with Practical Designs
In this post I have explained some important current mirror circuits, and how to design practical circuits using current mirror concepts. Current Mirror Definition A current mirror is a circuit that copies a current through one active device by regulating the current in another active device in the circuit, maintaining a constant output current independent […]
Float Switch Controlled Water Level Controller Circuit
The post narrates a simple water level controller circuit using a float switch mechanism. The idea was requested by Mr. tpraveenraj. Technical Specifications I’m a electronic hobbyist from software field. So I try with the things in the weekend. I saw your blog recently and really admired to test this circuit, and when I went […]
How to Design High-Pass and Low-Pass Filter Circuits Quickly
In this post I have explained how to design audio filter circuits such as high pass filter and low pass filter circuits effortlessly without going through the hassles of complex simulation and calculations. The presented designs will enable creating filter circuits only for the desired specific frequency bands and block all other unwanted frequencies. What’s […]
Bluetooth Stethoscope Circuit
In situations as critical as a COVID-19 pandemic, a doctor is the one personnel who is the most susceptible to getting infected by the virus from a patient. Therefore, doctors are being continually offered and equipped with many advanced and high tech devices in an effort to guarantee maximum safety to their life and health. […]
Listen to Wildlife and Insects with this Circuit
In this post I have explained a simple circuit idea which can be used for listening to the amplified sounds of insects and bugs in gardens, trees, or any deserted, quite backyards. Listening to the noises of outdoor wildlife may be a genuine auditory delight as well as a signal of impending danger. When it […]