Hi there,
Looking to be able to control an LED via wireless/RF. Both transmitter and receiver needs to be battery operated. I need to turn the LED on/off and dim it. I found this device
http://www.environmentallights.com/prod … n=products
But it’s a little over kill…Don’t need 12VDC or anywhere near that amount of watts I’m just looking to run a couple small LED’s. Would like something smaller in physical size and input/output
Anyone have any product ideas or other thoughts?
thanks in advance
oh I suppose I could also do it via IR control…any thoughts? thanks
Range needed?
Your skill level?
Cost target?
It might be better to explain the problem you are trying to solve than to ask for help with a specific solution. Often, a better solution can be found if we know your needs.
Something on the order of:
“I need to be able to remotely turn on an LED that controls my toaster from 30 feet away. LED should be white. Needs to be battery powered for safety reasons and should last at least 4 months. Duty cycle is likely to be just a few minutes on each day…”
Ok let’s forget the LED factor…
I want to control the output of DC voltage from a range of 0 to 5V. That unit should be battery operated, a 9 volt or a couple AA for power.
From across the room I want to have any wireless method to control that voltage from another battery operated device.
Cost is no issue and skill level is decent…I make a living.
that’s it.
thanks
Can the control be like a TV volume with up/down buttons, or do you need direct control like entering a channel number?
A smooth up down like volume control, not a step dimming where you have hard pauses between light levels. And then the on/off could handle an effective blink.
So my first suggestion would be to reuse and TV remote control. To receive the signal, I would buy a IR receiver module from Radio Shack and interface it to something like an MSP430. The output of the MSP would be a PWM signal you could use to control your LED.
The MSP itself runs on just a few micro amps of current at 3.3V. You could run for a month on just a supercap. The IR receiver might be a bit more power hungry. An MSP430 development system (ez430) is on the order of $20, the receiver another $10. Likely you could salvage a receiver from a discarded device.
Todays new product posting looks promising!