Hello,
Im planning to do a very simple project but getting quite confused about where to start as I've done parts of it before but not brought everything together in one piece. Any advice on where to start would be great and I can expand my knowledge.
Project Aims
Simply put a box containing three LED lights (1w max) which can be toggled on and off using push button switches, powered by external power supply.
I'm sure theres a very simple explination for doing this, but any advice on what I should use and I can go away and do some more research would be great.
Thanks
Im planning to do a very simple project but getting quite confused about where to start as I've done parts of it before but not brought everything together in one piece. Any advice on where to start would be great and I can expand my knowledge.
Project Aims
Simply put a box containing three LED lights (1w max) which can be toggled on and off using push button switches, powered by external power supply.
- One slight tricky part is toggling the LEDs through push buttons, I cant change to another type of button so I'm thinking of using an S/R latch IC to toggle whether the light is on. I cant run the 1W power through the IC as it will be too much current for the IC, so maybe a relay or MOSFET to turn the LEDs on and off from the S/R latch signal. Any suggestions on which would be best?
- Powering the system - One option I'm familiar with is using an Arduino as a power supply, but 3x 1W LEDs will be too much for the Arduino. Not overly familiar with what alternatives there are as I want the project to be as cheap as possible as I may want to make a few of these.
- My current thought is some sort of power supply powering the IC pushbutton system, and powering the LEDs as well. One thing I cant figure out is if all the LEDs are turned off and only the IC button part is powered, how do I manage the current, not sure what resistors would be required and in what configuration, if I have a resistor to lower the current when the lights are off, how do I stop that same resistor limiting current to the LEDs?
I'm sure theres a very simple explination for doing this, but any advice on what I should use and I can go away and do some more research would be great.
Thanks