Awakening each day early in the morning is a challenge for some. Therefore, utilizing a Smart morning timer or alarm can enable us to rise—and sparkle somewhat more uncomplicated and more accessible. Meanwhile, smart morning timers can be the foundation of a decent morning schedule.
However, this smart morning alarm can actuate itself, consequently when the sun rises. One principal nature of the circuit is that you can alter after how long of dawn you need to enact the alarm. For instance, if the sun rising time in your city is 6:00 AM then you can without much of a stretch modify the circuit to initiate the caution after 10, 15, 30, 60, or 120 minutes of the sunrise.
Hardware Components
| S. No | Component | Value | Qty |
|---|---|---|---|
| 1 | IC | NE555 Timer | 2 |
| 2 | Transistor | 2N3904 | 1 |
| 3 | LDR | – | 1 |
| 4 | Piezo buzzer | – | 1 |
| 5 | Variable Transistor | 100K | 1 |
| 6 | Capacitor | 220µF, 0.1µF, 10µF | 1, 3, 1 |
| 7 | Resistor | 1kΩ, 560kΩ, 270kΩ, 1MΩ, 10kΩ | 1, 1, 2, 1, 1 |
| 8 | Battery | 5 – 12 volts | 1 |
Circuit Diagram
Circuit Operation
The circuit will give a one-time alarm sound for a few moments. However, the alarm length can likewise be expanded by expanding the value of the 10uF capacitor. For instance, a 100uF capacitor can build the alarm sound length to 1 or 2 minutes. The circuit utilizes an LDR as a light sensor. The affectability of light-detecting can be balanced with the 100K variable resistor. These planning alterations should be possible by changing the value of the 220uF capacitor.
For better execution fit the circuit in an appropriate nook and make a gap for the LDR to get light and spot the circuit where it will get the morning daylight quickly.
Applications and Uses
- This smart morning alarm uses home Alarms
- It can likewise be utilized as an emergency Alarm
- It can be used as a general-purpose siren in Toys and indifferent child gadgets
- Used in light-sensitive areas
