1. Traffic Signals Density project
In this system, we use IR sensors to measure traffic density. We have to set up an IR sensor for each street; These sensors always detect the traffic on that particular road. All these sensors are connected to microcontrollers. Based on these sensors, the controller detects the traffic and controls the traffic system.
2. Solor Battery Charger
It’s a simple circuit to charge a 6V, 4.5Ah rechargeable lead acid battery from a solar panel. This solar charger has current and voltage regulation and also has overvoltage capability. This circuit can also be used to charge any constant voltage battery because the output voltage is adjustable.
3. Circuit of FM radio
: The FM radio circuit is a simple circuit that can be connected with the required frequency locally. This article describes the FM radio circuit circuit. It’s a pocket radio circuit.
4. LED Lamp with the help of USB configuration
It is a simple USB LED light circuit that produces an output of 5v. It can be used as an emergency light and also as a reading lamp.
5. Password based door lock system
The system displays a password-based door locking system where, after entering the correct code or password, the door is opened and the person concerned can enter the secure area. After a while the door closes. Read this post in full for more information.
6. Water Level alarm
It is a simple, low-cost hardware design that uses 555 timer circuits. The purpose of this project is to find a water level with simple and inexpensive hardware without compromising the performance of the device.
7. Automatic washroom light switch
This is a simple but very useful circuit in our real life that helps to turn the lights on automatically when a person enters the bathroom and when they leave it turns off automatically.
8. Cell phone detector
: It is a simple circuit that helps detect the presence of an active cell phone by detecting signals in the frequency range of 0.9 to 3GHz. It helps in monitoring the cell phone which is used for spying.