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This clock is completely controlled by Arduino. Interestingly, no real-time clock (RTC) module is used in this. It is very simple to code and works just like any other clock in your house.The LCD needs to be plugged over the Arduino board along with the keypad. The code can be found . Coding it without RTC from scratch gives a fundamental understanding of Arduino’s working.
Despite its simplicity, this has a lot of uses. Arduino based light sensors can be integrated with plant watering devices, security devices as well as home automation projects.Arduino based light sensors can detect a wide range of frequencies such as UV, IR and the frequencies of the visible spectrum. The most widely used light sensor which is often accompanied by Arduino is photocell/LDR. For this buildup, you’ll need one Arduino Uno, 1 LDR, One 100 kilo-ohm potentiometer and a buzzer. is the code to be executed in the IDE. Simplicity in its hardware connection gives this project a beginner-friendly learning curve.
In this project, whenever any movement is detected by the sensor, the Arduino is programmed in such a way that it instantly triggers the buzzer and flashes LED at the same time.This can be made advanced by inserting a password-based authorization to turn off the alarm once the sensor detects objects in the vicinity. The sample code can be found in . You can even make some tweaks to add your own devices. What about adding some action by using servos and robot arms? The possibilities are endless.
This requires the assembly of several components apart from Arduino such as red, green and yellow LED, breadboard, few resistors, push board switch, and connecting wires.Once the basic intuition is developed, you can also modify and readjust variable values according to your needs. Furthermore, this can also be extended to build a more complex system with motion sensors connected in such a way that the signal timings are readjusted.
Besides Arduino, the most important part of this device is the rain sensor, which is nothing but a PCB board. Almost everyone knows that water is a good conductor of electricity.This principle is extensively utilized in this circuitry. When water droplets fall on the detector, the circuit is completed, which allows the flow of current within it. Finally, the current powers the buzzer and an alarm is generated. You can also connect an LED in case you want a visual alarm by extending further. helps many of its customers by providing best quality .These were some of the projects which you can start right away , or take up as a weekend task to learn fundamentals. Get ready with your Arduino kit and laptop and dive right into it