Bike computer interference

[a11y_m]

It's only taken me 12 months to figure this one out

My flashing LED front light interferes with my wireless bike computer - I thought I'd fixed the computer (the signal had been variable) and it HAD been fine. But this morning I used my front flashy LED for the first time in a while and the computer instantly stopped recording anything!

Just annoyed/embarrassed it's taken me this long to figure out what was going on. Doh!

VDO A4+ wireless computer and "Polaris" 3-LED lamp. I might change to the spare wired el cheapo Cateye compute I have, but I HATE wires...

[OneDs]

I used to get excessive speed reading on my wireless flightdeck from the electromagnet gate at work, would send the speed way over 100mph. looked good on max speed readings.

Could you shield the inside of the led light with some foil to reflect any interference?

[CerbitonFlyer]

My Cateye used to freak out when I put my flashing front light on (they where virtually touching), but after moving them apart a bit (about 3cm) I seem to have solved it.

[Mars]

Send the light back. I'm sure in order to pass CE certification it has to pass some EM interference tests.

[Parsnip]

CerbitonFlyer said:

My Cateye used to freak out when I put my flashing front light on (they where virtually touching), but after moving them apart a bit (about 3cm) I seem to have solved it.

Correctamundo.

There was a set of lights on my old commute that used to mess with the computer - guessing it had one of the loops in the road.

[pdV6]

Quite common for LEDs to interfere. As has been suggested, mount them further apart or get a cheap wired computer.

[robpearson]

you could try wrapping the sides of the light in tinfoil? cheap and dirty, but might do the trick

[Parrot of Doom]

Mars said:

Send the light back. I'm sure in order to pass CE certification it has to pass some EM interference tests.

The trouble there is that it could just as easily be a crap receiver in the computer, picking up far too wide a range of frequencies.