Hi,
I'm pretty new to all this but have been working on a little project to learn some things. I have been prototyping some bicycle indicators/turn signals and I have all the code working on my breadboard so want to get on with installing it on my bike!
Could anyone help me in choosing the LEDs to act as the turn signal? I want them to be bright enough to be visible in daylight, and ideally be dual colour, either red/yellow or green/yellow.
I will be using an Arduino nano on the bike and understand that I may need a driver to power high wattage LEDs, which I think would be fine.
Help and advice much appreciated.
..there is an alternative..: Use oridinary yellow bulbs via a relay.
Mounting a lot of high intensity LEDs is more work/money
Power LEDs can require driver circuits..
Hi and welcome.
Is this a pedal bike or motor bike? If pedal, how will you power the leds?
Red/yellow or green/yellow would probably mean the same thing. You can make yellow from the other 2 colours.
Paul
knut_ny:
Mounting a lot of high intensity LEDs is more work/money
Power LEDs can require driver circuits..
Not a problem, there would only be one on each side.
PaulRB:
Hi and welcome.
Is this a pedal bike or motor bike? If pedal, how will you power the leds?
Hello! Pedal bike, I'm thinking batteries stuffed inside the handlebars.
These LEDs will be really bright at just 20mA
No fancy driver needed - just an NPN transistor or N-channel MOSFET to sink current thru the LEDs.
Hi pulstar,
How many cells can you fit in handlebars? How will you make electrical contact with them?
I think you need to buy some leds to see if they are bright enough for you. One 5mm high brightness may not be enough for use in the day you may need to make a small cluster of them. Were you thinking of pre-made modules? I don't think the dual colour 5mm type are very bright. Some of the rgb type are quite bright but much more expensive.