How do you get the status LED to work on the nflex or bflex?

[Zero_Enigma]

1. What LED is needed? (link please)
2. What LED size is needed?
3. Can anyone provide photos of how to do this? Large photos please.
4. How would one mount and waterproof the status LED on the 'cube' (Allens design AKA Nightrider AKA SirAchesAlot) LED bike light.


Thank you in advance.

 

[georges80]

1. What LED is needed? (link please)
2. What LED size is needed?
3. Can anyone provide photos of how to do this? Large photos please.
4. How would one mount and waterproof the status LED on the 'cube' (Allens design AKA Nightrider AKA SirAchesAlot) LED bike light.


Thank you in advance.

1) Got to read the manual
2) Got to read the manual

Basically the STAT pin is driven to 3.3V to light the LED. I recommend a red LED and a resistor in the 50 ohm range wired in series to limit the current to the LED. The other end of the LED or resistor goes to GND (battery negative/ground).

cheers,
george.

 

[Darell]

4. Stick it through a hole and add silicone.

That should about cover it, yes?

 

[Taxythingy]

Hey Zero,

I've just wired one of these up a couple of weeks ago in my new bike light (details to follow once the final part arrives!)

I used a 3mm blue LED which lights up nice, bright and really groovy, but a standard 2.5V, ~20uA red LED should do the trick. George's recommendation of a resistor is a good idea, as most of these LEDs are designed for around 2.5V and may get a bit overloaded at the higher voltage.

Again, follow George's recommendation for the wiring. Positive goes to the stat pin on the driver, negative goes to a common ground (negative) somewhere. I wired mine back to a free -ve connection on my power socket.

You can check the polarity of the LED by connecting it over the terminals of a Li-ion battery (I used a slightly discharged one with a voltage of around 2.8V). Recommend doing this before soldering...

I'm not familiar with the Cube light, but a 3mm LED will fit surprisingly well in a 3mm hole. Some silicone-based glue on the back should hold it in nicely.

I'll see if I can get a couple of shots of my mount and wiring - err, bird's nest - to post here.

Have fun!
Chris

 

[Zero_Enigma]

1) Got to read the manual
2) Got to read the manual

Basically the STAT pin is driven to 3.3V to light the LED. I recommend a red LED and a resistor in the 50 ohm range wired in series to limit the current to the LED. The other end of the LED or resistor goes to GND (battery negative/ground).

cheers,
george.

George,

What if I use a dual-color LED like a red/green? How would I get this to work? Or change colors when the voltage low setting is tripped?

 

[heatstroke]

As far as I can tell, the stat led only blinks.
It just duplicates the main led blinks for status of batt etc.
I was hoping it was always on, that way i could put a decent 5mm red led on it and have it act as a backup tail light through the clear perspex of my lamp tail cap.
Anyway I removed it on mine.

 

[znomit]

It "blinks" because when the main light dims briefly for the blink the battery voltage goes back up (reduced load), so its on off on off.
If your main lights are set on a long blink frequency or none at all, the led comes on steady. Unless you have a flashing LED.

Zero you can get 3 legged dual colour LEDs which could be wired for battery connected(with appropriate resistor) and status.

 

[Darell]

George,

What if I use a dual-color LED like a red/green? How would I get this to work? Or change colors when the voltage low setting is tripped?

Currently, there is no simple way of using a dual-color LED for this indicator.