An Arduino Sunrise alarm clock is an arduino based project, designed for making you to wake up with gentle alarm. Let us see how to make this dawn alarm clock with buzzer. A sunrise alarm clock increases the position of outburst suddenly in your bed at the set time. This helps you to wake up more gently. This vim is form on genuine Arduino and prototyped with “nano” on a breadboard but if we pull off this specification on the PCB, it spinal column take less time.
Sunrise Alarm Clock
The basic electrical components required in this sunrise alarm clock project are the following:
AC Light Timer USB Cable, IRF510 MOSFET,USB AC Adapter, 1 MOhm Resistor, 4 X 100 ohm Resistor, 10 K Ohm Potentiometer (Variable Resistor),4 X LED,Printed Circuit Board, 1000 µF Capacitor,Extension Wire will be optional Jumper Wires, Momentary Switch will be optional
We also need the following tools on hand:
- Soldering Iron and Solder
- Non-conductive Tape
- Wire Cutters
- Wire Strippers
Arduino compatible ATMega328 controlled, Rotary encoder and switch to control, Digital time display, 8-channel PWM light control (2 x 3W RGB + 2 x 6 x 1W white), Brightness-controllable red LED display light of 18W, Shift PWM LED driver board, lamps and buzzer alarm are the main components to design the project. arm/disarm stored in battery-backed RTC RAM with indicator, optional buzzer. Each alarm contains Escalating buzzer tone, setable Alarms in Arduino sunrise alarm clock
ATX power supply is required to control the power of the device effectively. Easily controlled Night Light, Security Light mode stored in RTC battery-backed RAM. A night light is incorporated into this project inside a plug socket for switching on and off. A 433 MHz wireless transmitter is wired up by using switching sockets and outlining on the Raspberry Pi Arduino home automation project.
Night Light Function
When the Arduino was reset , the Night Light () function works between noon time and you mostly do this at bedtime at dark. In sunrise alarmclock, You will use a light-dependent resistor until the sunrise clock starts as they were not sensitive to blue light and if you use the global current Minutes variable it resets every day.
Wiring is not much difficult task as the PIR sensor will be peculiar and VCC, GND, and OUT were labelled on the backside. RX shows range up to 7m, other TX determines delay – These are two variable resistors which were labelled on it. Any trigger for 5 seconds of ON state by sensor is due to delay at its lowest setting which is fully anti-clockwise. The delay between active states is clearly shown with this. the sensor will send a low signal for at least 5 seconds there will be 5 seconds elapsed time and there is no movement found. If the delay is set high around 30 seconds then the sensor may be broken.
Night Light Sensor
The list of components and Schematic are as below:
- Set of RGB LED strip lights
- 12 volt power supply
- Relay and power socket, or wireless controlled sockets and suitable transmitter
- 3 x MOSFET N transistors (I use type STP16NF06FP)
- Night light
- PIR movement sensor (HC-SR501), or an SC-04 sonar (not as effective), Light sensor
Wiring Up a Relay
To switch on the main power relay is required to be rated for voltage of nearly 110V or 240V AC depending on where you stay. 250VAC / 10A is taken from the sensor pack to be in the safe side. Relays will have common ports in the center that were connected to wire coming inside the plug. Now the live terminal of the socket is connected to the NO (normally open) and is plugged into an outlet. If you don’t connect with mains power it will be dangerous and gives shock, so better to use wireless switched sockets.
The earth and neutral cables should go straight to the socket and should not touch the relay. There should be an earth line. To test, wire the relay signal pin to 12, then run a simple blink program modified to work on pin 12, not 13 as is the default. Your socket should turn on and off every few seconds.
The sunrise alarm clock simulator starts giving errors by running on the Atmel that results in bright flashes of light during the sunrise cycle on a gradual increase. Use Arduino for easy process instead of an Atmel programmer to update for easier future changes.
The main part of the sunrise alarm clock project will be some 5 meter LED strip light laid around the bed. You will power these with an external 12 volt supply using some MOSFET N transistors switched. It is expensive and not very flexible
As it is a prototype, timing will be a problem. The Arduino is set to count down from whenever it is reset. We will lose a second each day, but we can include a real time clock chip for this more reliably. The sunrise alarm will start 30 minutes before wake-up time and slowly increase the output level until it’s at 100% brightness – this should be enough to wake us up, though it’s a good idea to keep using your regular alarm clock until your body is used to it.
Arduino based Home Automation
The main objective of this project is to develop a home automation system using an Arduino board with Bluetooth being remotely controlled by any Android OS smart phone. Arduino sunrise alarm clock As technology is advancing so houses are also getting smarter. Modern houses are gradually shifting from conventional switches to a centralized control system, involving remote controlled switches.
Presently, conventional wall switches located in different parts of the house which makes difficult for the user to go near them to operate. Even more it becomes more difficult for the elderly or physically handicapped people to do so. Remote controlled home automation system provides a more modern solution with smart phones.
In order to achieve this, a Bluetooth module is interfaced to the Arduino board at the receiver end while on the transmitter end, a GUI application on the cell phone sends ON/OFF commands to the receiver where loads are connected. By touching the specified location on the GUI, the loads can be turned ON/OFF remotely through this technology. The loads are operated by An Arduino board through Opto-isolators and Thyristors using triacs.
For more interesting power electronics based projects please post your comments in the comments section below.
- Open Source Sunrise Alarm Clock by hacknmod
- Night Light Sensor by cdn.makeuseof
- Schematic Diagram of Sunrise Alarm Clock by cdn.makeuseof