Hello
I am completely new to electronics, I know very little and am aware that this is probably a really unconventional project but would really appreciate some pointers.
I have been working on a little project with the intention of fitting the empty shell of a vintage torch with a new torch's LEDs and the addition of a circuitboard taken out of a USB light that glows dark to light - like a moodlight to make the torch look like it's pulsing.
I have managed to hook up the 9 LED light circuitboard taken out of the brand new torch to the USB glowing light's circuitboard and it works as I would like it to. However, I would now like to run the torch off of batteries rather than off the USB port.
The new torch came with 3AAA batteries and on the + wire going into the circuitboard with the LEDs on the there was a resistor.
There were no resistors on the USB light's circuitboard (see attached picture)
If I were to power the torch using the 3 AAAs I am aware that the current would be a lot higher than the 500ma coming from the USB power. Could I simply use the resistor I've already mentioned that came with the torch? Would it be as simple as moving this to the + wire going into the USB glow light's circuit board?
3AAAs > Resistor > USB glow light's circuit board > 9 LEDS on a circuit board
Once again I'd be really grateful for any help.
Bea
USB light circuit board : http://bitsy.me/7kw
I am completely new to electronics, I know very little and am aware that this is probably a really unconventional project but would really appreciate some pointers.
I have been working on a little project with the intention of fitting the empty shell of a vintage torch with a new torch's LEDs and the addition of a circuitboard taken out of a USB light that glows dark to light - like a moodlight to make the torch look like it's pulsing.
I have managed to hook up the 9 LED light circuitboard taken out of the brand new torch to the USB glowing light's circuitboard and it works as I would like it to. However, I would now like to run the torch off of batteries rather than off the USB port.
The new torch came with 3AAA batteries and on the + wire going into the circuitboard with the LEDs on the there was a resistor.
There were no resistors on the USB light's circuitboard (see attached picture)
If I were to power the torch using the 3 AAAs I am aware that the current would be a lot higher than the 500ma coming from the USB power. Could I simply use the resistor I've already mentioned that came with the torch? Would it be as simple as moving this to the + wire going into the USB glow light's circuit board?
3AAAs > Resistor > USB glow light's circuit board > 9 LEDS on a circuit board
Once again I'd be really grateful for any help.
Bea
USB light circuit board : http://bitsy.me/7kw
Last edited: