Designing a Multicolor Smartphone Torch App: Feasibility and Development

In summary: That would be a great idea, but it would have been done by now, it was that easy.In summary, it is possible to design and develop a Smartphone torch app that can display light in different colors selected by the end user, as long as the LED used is capable of emitting multiple colors. However, there are currently no smartphones with LEDs that can emit anything other than white light, so this concept may be difficult to implement. Adding more LEDs would require hardware changes and may not be feasible. It may be more practical to focus on other features, such as an IR LED transmitter or a USB powered color changing light.
  • #1
prashantakerkar
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Is it feasible to design and develop a Smartphone torch app which can display light in different colors selected by the end user?

Thanks & Regards,
Prashant S Akerkar
 
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  • #2
Only if the LED can emit multiple colors. But I don't know of any that can.
 
  • #3
Thanks.

Will this be a complex circuit to be designed inside a Smartphone?

Have LEDs say 5 numbers inside the Smartphone device emitting 5 different colors viz Red,Green,Blue,White,Yellow controlled by the Smartphone torch app.
By selecting Red, the Red color light is emitted by the Red led diode.
By selecting Green, the Green color light is emitted by the Green led diode.
and so on ...

Thanks & Regards,
Prashant S Akerkar
 
  • #4
Perhaps I wasn't clear. I don't know of any smartphones with LEDs capable of emitting anything other than white light. There may be some out there that can, but I don't know of them. Since these LEDs cannot emit anything other than white light, there is nothing you can do with software to make them emit a different color.
 
  • #5
prashantakerkar said:
Smartphone torch app
There are two light sources (worth mentioning) on a typical smartphone. One is the flashlight LED for the camera: this gives 'white' light only and it is actually weak if running long.

Other is the screen, but to change the color of that is a bit trivial I think.
 
  • #6
Thanks.

Will this work?

1 Add four more LEDs viz Red,Green,Blue & Yellow.
2 Design & Develop the torch app allowing the end user to select any of the five LEDs red,green,blue,yellow & white (camera). Depending upon the Led color is selected the torch flashlight color is displayed.

Will it be difficult to design & develop the Multicolor torch app for the Smartphone device?

Thanks & Regards,
Prashant S Akerkar
 
  • #7
If you add more LEDs then that's no longer just an app: it's already hardware.
If it's already about hardware then I would rather start with an extension for power banks. Those has the capacity to effectively power a real torchlight, not only for show.
 
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  • #8
Thank you.

Will it be a complex Multicolor Torch Smartphone app for design & development?

Radio buttons displayed in the app for selecting a single led color choice for display.

Thanks & Regards,
Prashant S Akerkar
 
  • #9
prashantakerkar said:
Will it be a complex Multicolor Torch Smartphone app for design & development?
No, it will be utterly trivial if the hardware is in place, but no one is going to PUT the hardware in place, so I'd suggest you forget about this concept.
 
  • #10
prashantakerkar said:
Will this work?

1 Add four more LEDs viz Red,Green,Blue & Yellow.
2 Design & Develop the torch app allowing the end user to select any of the five LEDs red,green,blue,yellow & white (camera). Depending upon the Led color is selected the torch flashlight color is displayed.

Will it be difficult to design & develop the Multicolor torch app for the Smartphone device?
As mentioned, unless you work for Apple in iPhone development (or at one of their competitors), this is not something you will likely be able to do. And the cell phone makers would need some compelling business case to justify the extra cost of adding this new feature into their phones.

Something a bit more useful would be an IR LED transmitter that you can power from your phone's USB port that you use along with your phone's camera to be able to see in the dark (for moving around a dark house, for example, and not waking up your spouse with a light). It would likely use less power than the torch.

Or, if you are adamant that you want to be able to change the color of your phone's torch, just make a small version of this and stick it onto the back of your phone over the torch output...

http://www.company7.com/optec/graphics/ifw_wheel.jpg

ifw_wheel.jpg
 

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  • #11
You might be able to buy a USB powered colour changing light.
 
  • #12
Drakkith said:
Only if the LED can emit multiple colors. But I don't know of any that can.
LED can do that .
 
  • #13
psnkeras said:
LED can do that .
WHAT led can do that? Be specific
 
  • #14
phinds said:
WHAT led can do that? Be specific
There are bi-color and tri-color LEDs, and there are "white tuning" circuits that can drive them to different areas of the color spectrum. I've worked with them on a recent LED lighting project at work. Some small bi/tri-color LEDs have the separate die in the same LED package, but for higher powers, they will generally be tight LED arrays on a common heat sink:

https://eenews.cdnartwhere.eu/sites...files/images/amscontrib3530.jpg?itok=tC_r-Gzj

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  • #15
Cool. Hadn't heard of those. Thanks.
 
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  • #16
psnkeras said:
LED can do that .

Then there's no issue.
 

Related to Designing a Multicolor Smartphone Torch App: Feasibility and Development

1. What is the purpose of designing a multicolor smartphone torch app?

The purpose of designing a multicolor smartphone torch app is to provide users with a customizable and convenient way to use their phone as a flashlight. With the ability to change the color of the light, users can have a more personalized and functional experience.

2. Is it feasible to develop a multicolor smartphone torch app?

Yes, it is feasible to develop a multicolor smartphone torch app. With advancements in technology and the availability of various app development tools, creating a multicolor torch app is achievable. However, it may require adequate resources, time, and expertise.

3. What are the key features that should be included in a multicolor smartphone torch app?

The key features of a multicolor smartphone torch app should include the ability to change the color of the light, adjust the brightness, and switch between different lighting modes (e.g. strobe, SOS). It should also have a user-friendly interface and be compatible with different smartphone models.

4. How can the development of a multicolor smartphone torch app benefit users?

The development of a multicolor smartphone torch app can benefit users by providing them with a more versatile and customizable flashlight option. It can also be useful in emergency situations or for specific tasks that require a certain color of light (e.g. photography, reading in low light).

5. Are there any potential challenges in developing a multicolor smartphone torch app?

Yes, there may be potential challenges in developing a multicolor smartphone torch app. These may include technical difficulties in implementing the color-changing feature, ensuring compatibility with various devices, and addressing any bugs or glitches. Additionally, market competition and user demand may also present challenges in the development and success of the app.

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