فون الرٽ برائيٽ آر جي بي ايل اي ڊي فليشر سرڪٽ

[Sindhi Media]

فون الرٽ برائيٽ آر جي بي ايل اي ڊي فليشر سرڪٽ

 

[Sindhi Media]

Years back - had trouble hearing her phone ring.
I decided to make a simple flasher to help her "see" the phone ring.

This is a modification of that project - this time using Bright RGB LEDs
with a rating of 15,000 mcd.
I decided this time I wanted a flasher that you would notice in a room even
if it was still daylight.

I found a compromise between being blinded and more than bright enough
at a current of 24ma per Bright (15000 mcd) RGB LED pair.

Above (Image #1) is a photo of the minimal components I used to construct the circuit.

This picture (Image 1) shows the wiring of components and also photos of the
final in-box layout and resulting flash of the bright (15000 mcd) RGB LEDs
when connected to the phone line via the phone cord with RJ45 jack.

 

[Sindhi Media]

اچو ته هاڻ اهو سرڪٽ ڊزائين ڪريون

Refer to the Circuit Diagram above:

The 470 ohm resistor and the two diodes can be soldered directly to the relay coil contacts.
Make sure the diodes are correctly positioned.

The TIP(+ve) end wire of the phone cord can then be soldered to the other end of the resistor
and the RING (-ve) end wire to the -ve (stripe) end of the diode opposite to the resistor.

The BRIGHT RGB LED (pairs) can be soldered separately with a 100 ohm resistor in series
with each string.

Image #1 (above) shows what the two LED string pairs look like when linked together with the
(+ve) ends of the LEDs connected to the (+ve) of the 9V battery and the (-ve) LED series resistor
ends connected to the "common" of the relay.