The obvious question -
Why don't you want to use a reed switch ? They are simple, cheap and utterly reliable
The obvious question -
Why don't you want to use a reed switch ? They are simple, cheap and utterly reliable
They are simple, cheap and utterly reliable
Dunno what reliable reed switches you have - they're simple, cheap, made of glass, mechanical switches which need debouncing.
Hall effect switches are almost as cheap and are rather more reliable.
made of glass
Fragile. I've replaced a few that were not in the correct "environment" for a GLASS based device.
well I found a good supplier (bgmicro) and their shipping is great so I might just get some reed switches from them after all and maybe a hall effect sensor.
Gary about the riders legs, who said I will be measuring the riders leg speed? Cause I'll just be measuring the wheel revolutions.
Now, use your head before answering. It is an option. But if you don't know that you might need it, then you probably don't.
That would give you something you don't think at a moment, one extra information.
Cheers,
Kari
mowcius:
They are simple, cheap and utterly reliable
Dunno what reliable reed switches you have - they're simple, cheap, made of glass, mechanical switches which need debouncing.
Hall effect switches are almost as cheap and are rather more reliable.
But what if he wants to pedel other then due north. ?
But what if he wants to pedel other then due north. ?
Lefty you make me smile
mowcius:
But what if he wants to pedel other then due north. ?
Lefty you make me smile
Great, does that mean you got over that revolution (1776) thing between us.
Lefty
Great, does that mean you got over that revolution (1776) thing between us.
That what thing? Did we have a thing going on? That thing?
A ABS VR-sensor rescued from a scrapped car maybe ?
retrolefty:
mowcius:
But what if he wants to pedel other then due north. ?
Lefty you make me smile
Great, does that mean you got over that revolution (1776) thing between us.
Lefty
We consider you our wife, we just let you think you got the upper hand
Okay I found BGmicro has a good price on reed switches + shipping. Does anyone know of any cheaper places to buy reed switches?
Ebay probably.
Hall effect sensors would be a better buy.. Much more reliable, better detection at speed and much less prone to smashing.
I would use hall. Reed is old fashion...
Cheers,
Kari
Reed is old fashion...
Really, I thought 80s was old fashion
mowcius:
Reed is old fashion...
Really, I thought 80s was old fashion
Don't say that, all good things (not people) are made in 80s.
Second thought, that applies to music only... and that's only my opinion. No offence sir!
Cheers,
Kari
Oh I like some 80s music.
mowcius:
Oh I like some 80s music.
Then we are doing just fine! You never know...
Oops, off topic.... back to original subject.
How about inductive pickups? They creat sine wave, and needs pulse wheel, maybe opamp... but they are also sometimes used in these.
Cheers,
Kari