# Door bell light

**URL:** https://forum.core-electronics.com.au/t/door-bell-light/13260
**Category:** Core Electronics
**Created:** [25 February 2022 00:18 UTC](https://forum.core-electronics.com.au/t/door-bell-light/13260 "2022-02-25T00:18:53Z")
**Posts on this page:** 2
**Page:** 1

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### Author: ![robert194218](https://avatars.discourse-cdn.com/v4/letter/r/e8c25b/32.png) [@robert194218](https://forum.core-electronics.com.au/u/robert194218)
#### Post date: [25 February 2022 00:18 UTC](https://forum.core-electronics.com.au/t/door-bell-light/13260/1 "2022-02-25T00:18:53Z")

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hello I was told by Trent from customer support the product I’m looking for hasn’t got a working package yet and to post my idea here and someone might be able to help me out.

ok I am looking for a door bell that doesn’t make sound but admits a light when pressed not just a dull little light that ya cant really notice either.  
I’m talking bout a police siren light that will light up the whole room when its pressed type of light.  
see I’m on my computer most days at home by myself working. And with the head phones on plus my already very poor hearing I need to have the headphones up a bit louder then usual.  
I do not hear the door at all and I miss important visitors.

can someone help me out ?

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### Author: ![Liam](https://yyz2.discourse-cdn.com/flex028/user_avatar/forum.core-electronics.com.au/liam/32/3562_2.png) [@Liam](https://forum.core-electronics.com.au/u/Liam)
#### Post date: [25 February 2022 00:55 UTC](https://forum.core-electronics.com.au/t/door-bell-light/13260/2 "2022-02-25T00:55:27Z")

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Hi Robert,

Welcome to the forum!!

Sounds like an awesome project!  
To get this project from an idea into reality you’ll have to do some making, but if you have any questions we’re here to help!!  
I’d definitely check out this project that Matt made by hardware hacking a doorbell:

> **[The Great Doorbell Hack](https://core-electronics.com.au/projects/the-great-doorbell-hack)**
>
> Do you want a quick, easy, cheap RF remote control for your Raspberry Pi projects? Well, look no further than the front door! As you've probably got a half-duplex RF setup you've never considered using in a project before. Try this simple hack of a...

After the button is pressed you might want to keep your lights on a bit longer, changing Matt’s code around a bit will let you hold a signal for a bit longer.

As for lighting options and how to control them:

- We have this [Tower Light](https://core-electronics.com.au/tower-light-red-yellow-green-alert-light-with-buzzer-12vdc.html) and with some MOSFET’s you’ll be able to control them with the Arduino, I’d check out [this N-Channel MOSFET](https://core-electronics.com.au/p-channel-mosfet-20v-24a-low-vgs-th.html) (not a P-channel) and you can power both the Arduino(through the Vin pin) and Light from this plug pack: [12V DC 2A Fixed 2.1mm Tip Appliance Plugpack | AM8936 | Core Electronics Australia](https://core-electronics.com.au/12v-dc-2a-fixed-2-1mm-tip-appliance-plugpack.html)  
[This terminal block adapter is handy](https://core-electronics.com.au/female-dc-power-adapter-2-1mm-jack-to-screw-terminal-block.html) to get from the plug to some bare cables - just note that a jumper cable and breadboard won’t take the full grunt of this power supply
- You could also opt for a Raspberry Pi Pico (Programmed in MicroPython instead of Arduino and use our [GlowBit Matricies](https://core-electronics.com.au/glowbit-matrix-8x8.html) (some soldering required) - they’re super bright and you could even put custom text on them!

Liam.
