A switch is the most essential part of any circuit. Different circuits use different switches in them. In this project, we are going to use a Touch Dimmer Switch. This switch is a touch-sensitive ...

To interface reed switch with Arduino we need to build a voltage divider circuit as shown in the figure below. Vo is +5V when the switch is open and 0V when the switch is closed. We are using a ...

In this project we are going to make Clapper circuit using the concept of ADC (Analog to Digital Conversion) in ARDUINO UNO. We are going to use a MIC and Uno to sense the sound and trigger a response ...

Here is a simple general-purpose security alarm circuit built on the Arduino platform. It brings up an obtrusive alert signal when an intrusion/theft attempt is observed by its front-end sensor. In ...

A password-based circuit breaker or PBCB is an electrical switch operated through a user-defined password, providing a secure and controlled means of activating or deactivating an electronic circuit.

The external alarm should be connected at CON2 connector. Connect the 9V power supply at J1 connector. The Arduino board will receive power at J2 connector. When power to the circuit is switched on by ...

The Atmega328P-PU (IC1) chip in this circuit is infact an Arduino UNO chip, that is to say IC1 holds a small code prepared & processed using Arduino IDE. Switch S1 is the traditional reset switch as ...

But it's an interesting mechanism to save power and we can experiment with the MOSFETs a bit too. You don't HAVE to switch off the Arduino itself - you can use this same circuit to just switch off ...

I use that in a lot of Circuit VR posts so you can click on a circuit and see it live. However, the simulator does not save the source code in the virtual Arduino. You have to do that yourself.