Hi,
I am medical and not anyway technological (!) - this forum fascinates me as I really am ignorant of all the phrases and language used!
However, I am a student and trying to find a person or company (whether this is a technology student etc) to make a prototype for me. I wish it to involve 12 LED light bulbs; lighting every 10 seconds for a total of two minutes!

Sounds simple to some, but my mind is shot reading through previous posts and suggestions of how to accomplish this.
Apologies if this is the wrong forum but I noted title 'Projects' and thought I will ask and maybe get pointed in a direction!

Regards

 

Welcome to AAC!

Simple enough. However, you need to provide some data on the LED light bulbs.
Can you post a link the the LEDs?
How do you propose to power these LEDs?

 

Thank you Mr Chips,

The link below is for the bulbs that I found on eBay:

https://www.ebay.co.uk/itm/4-8-10-1...hash=item3afc09ee0f:m:mEmdsZMVSuQMT6fj0Xn_ejQ

Power, would be AA style battery most likely?

I guess I would need a timer but that's where I get gazumped!

 

Your ref. does not give much inf. on LEDs; as shown the bulbs might be high V, unknown wattage & basing. What are LEDs to be mounted on ?
I've done projects for posters on AAC but am shipping only to US addresses.

 

Hello,

Looking at the adapter on the pictures of the given page, it is a 12 Volts adapter:



The page also states a power of 1.5 to 2.5 Watts.
When you want to power it with AA batteries, you will need 8 batteries in series.
You will have a rather short run time on the batteries.

Bertus

 

Your ref. does not give much inf. on LEDs; as shown the bulbs might be high V, unknown wattage & basing. What are LEDs to be mounted on ?
I've done projects for posters on AAC but am shipping only to US addresses.

Bernard
Thanks for your input-
LEDs ideally mounted on plastic (bordering) . I have contacts in the US so posting within the US wouldn’t be a problem-
Can we give out emails on this or not?

 

Bertus,
Thanks for your reply- 8 batteries is a hell of a lot . Would there be an alternative to power as it would be a mobile unit as such.
Ruth

 

Hello,

Did you see the other add?
https://www.ebay.co.uk/itm/14-White...itm=222787728184&_trksid=p2047675.c100623.m-1

This one requires 2 AA batteries.

Bertus

 

Hello,

Did you see the other add?
https://www.ebay.co.uk/itm/14-White-LED-Hollywood-Light-Dressing-Table-Vanity-Make-Up-Mirror-Bathroom-Wall/222787728184?_trkparms=aid=555018&algo=PL.SIM&ao=2&asc=49925&meid=3d50cda469454ea08a3e31b677cb3925&pid=100623&rk=1&rkt=6&mehot=pp&sd=253336612367&itm=222787728184&_trksid=p2047675.c100623.m-1

This one requires 2 AA batteries.

Bertus

Bertus

Thank you - yes I did see that but it’s 14 lights....the set up (mirror with border is perfect) however, my project requires 12 light each lighting up every 10 sec to make the required two minutes.

It’s for a medical research project- that why so specific.
I’m trying to get my head around how to set one/make one or outsource it.

 

Hello,

Would this fit better?
https://www.ebay.co.uk/itm/Small-Wh...m=132460817476&_trksid=p2047675.c100005.m1851

Bertus

 

Hello,

Would this fit better?
https://www.ebay.co.uk/itm/Small-White-Led-Light-Hollywood-Style-Wall-Mirror-Girls-Bathroom-Makeup-Mirror/132460817476?_trkparms=aid=555018&algo=PL.SIM&ao=2&asc=49925&meid=fd65e6804f334531a029996f32ecb218&pid=100005&rk=2&rkt=6&sd=292415378464&itm=132460817476&_trksid=p2047675.c100005.m1851

Bertus

Bertus,

This looks good- how would one go about introducing a timer to control the LED’s lighting up (as mentioned above).
Many thanks

 

Hello,

One could try to pry-out the switch on the side of the mirror:



Or you could make a double sided piece of PCB , the size of the diameter of the battery, to interupt the power.
On this piece of PCB you could connect the switch for the timer.

Bertus

 

Life with 2 alk. AA batteries might be around 15 to 20 hours continuous on time. If device is to be used much I would use rechargeable Ni-MH AAs.
If on times is 10 sec. what is off time ?

 

Life with 2 alk. AA batteries might be around 15 to 20 hours continuous on time. If device is to be used much I would use rechargeable Ni-MH AAs.
If on times is 10 sec. what is off time ?

Bernard,

Thank you for your reply.

Each light is to switch on every 10 seconds so that all 12 are fully lit by the two minutes.
Once the two minutes is reached I.e. all 12 are on then the whole unit can be switched off.

(It’s to be a visual/educational tool)

 

Hello,

If you want to control the leds separately, you will have to open the mirror to gain access to the individual leds.
There is a thread on this forum where you can read how to make patterns with leds:
LEDs, 555s, Flashers, and Light Chasers

Bertus

 

Bernard,

I would be interested to chat to you further regarding possibility of a prototype, shipping within the US isn't a problem.
As I am quickly realising that I am out of my depth reading the LED threads and forums!
My email is <snip>

Regards,
Ruth

Moderator edit: removed email to prevent spam

 

Ruth,
I suggest you edit your post to remove your email address and send it by the messaging system on this forum to Bernard. (You may find that you get lots of spam etc. if you don't)

Les.

 

Ruth,
I suggest you edit your post to remove your email address and send it by the messaging system on this forum to Bernard. (You may find that you get lots of spam etc. if you don't)

Les.

Thanks Les, I looked for a messaging system but didn't see one, thanks to the Moderator for removing.
Much obliged.

 

To send a message to Bernard go to one of his posts (Post #13) click on the word Bernard (or the picture above it) on the left hand side. This will bring up a box on the screen. Click on the words "start a conversation" I think is fairly clear from there.

Les.

 

Yes have done all the above yet don’t get an option for ‘start a conversation’ hence the email attempt! Not to worry, thanks