Wireless quick-release push button for small LED light - Page 1
Forum section: electronics / beginners

author: Techaplayer
author_rank: Newbie
timestamp: July 26, 2023, 05:20:25 pm
content: Hi all, can anyone direct me where to get a small push button switch that will wirelessly light a small led light when pressed. The light will be no more than 2ft from the button so probably Bluetooth or a kinetic switch? Kinetic would awesome if no battery is required as the light only needs to go on for a second and then off. The button can’t be a click-on click-off just when you press it. Needs to light up for a second and then goes off, or when you release the button the light goes off. Any suggestions muchly appreciated! I’m not looking to build from the ground up just looking if there is already anything like this out there? I’m looking for both the switch and the light as a combo, doesn’t matter what colour the light is. As long as it’s small and LED. Thanks!! The pic attached is just an example.

author: Infraviolet
author_rank: Super Contributor
timestamp: July 26, 2023, 09:28:04 pm
content: You're looking at several different problems here, not something to be solved with one part:1)how you're powering these things, will both the LED and button have internal batteries, will the button device be some super low powered thing where you'd try to get power from radiating fields from any nearby mains cabling behind the wall...2)how you're communicating between them, you can buy pre-made radio modules for sending simple on/off signals or more detailed serial data, or use 38KHz (TV remote derived) IR sensors and an IR LED3)what you want the switch to be like mechanically, your requirements sound a bit conflicting, you want it to come on and stay on a while, yet you also sound like you want a way to quickly turn offThis might be a case for two switches, one to turn on with which sends a changing edge to a 555 or a small cheap microcontroller and which has the light then stay on for a defiend period, plus a second one which can be hit quickly for rapid turn off. And you might be looking at doing the timing stuff on the LEDs end, just having the switches send momentay signals for "switch 1 has been pressed" and "switch 2 has been pressed", and having the things on the LED's end of your wireless comms link then implementing the appropriate actions and delays after detecting either signal.

author: Techaplayer
author_rank: Newbie
timestamp: August 06, 2023, 08:03:56 pm
content: Ok, wow. Thank you so much for this! A single button press and hold, for as long as you want the light to be on, would do it. For my purpose the operator would not need to hold it for more than 2 seconds. So, forget double-click on/off or the 1-second timer. Just a press on, release off. I think I’m probably looking at both the button and the receiver light having a small battery? The difficulty is the light can’t just be one LED it needs to be a few, maybe 5, it needs to be quite bright and seen from a reasonable distance of about 10m so this combo is not strong enough -https://www.amazon.com/Wireless-Control-Controller-Transmitter-Receiver/dp/B01G5BDT1O/ref=asc_df_B01G5BDT1O/?tag=hyprod-20&linkCode=df0&hvadid=167152358566&hvpos=&hvnetw=g&hvrand=5187139598758987873&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9029007&hvtargid=pla-315860398455&psc=1Thanks so much again for taking the time to reply, appreciated. It helps!

author: edavid
author_rank: Super Contributor
timestamp: August 06, 2023, 09:40:45 pm
content: If you look at wireless doorbells, you can probably find something that will work.For example, this one is pretty close to what you asked for:https://www.amazon.com/Honeywell-RDWL515P2000-Portable-Wireless-Doorbell/dp/B01HNSFT52

author: Doctorandus_P
author_rank: Super Contributor
timestamp: August 07, 2023, 07:42:34 am
content: You can also use a cat for remote control.Shine a laser pointer on your switch, and your cat will push the button.

author: Psi
author_rank: Super Contributor
timestamp: August 07, 2023, 07:45:21 am
content: yeah, those small 4 channel keyfob transmitter and receiver boards are probably your best option.They are usually programming for various states, like momentary or 2 buttons linked together for set/clear output, or latch on each output etc..Good search keyword are 4ch 433mhzAdd module if you want PCBs rather than finished keyjob remotes and relays.

author: rteodor
author_rank: Frequent Contributor
timestamp: August 07, 2023, 08:13:31 am
content: Quote from: Doctorandus_P on August 07, 2023, 07:42:34 amWon't work: the FND (focus-to-distraction ratio) is too small for this application.