11 replies to this topic

[eplaksienko]

Chris 1 question related to SB

 

I try to play with sonic distance sensor, one of the guys shared the code http://forums.netdui...ic-rangefinder/

 

I didn't try it with Netduino, but combination of NGO and SB doesn't give correct numbers, is there any specific delays or other could be the reson

 

PS: I tried the module with Arduino it works

[Steve French]

I had the exact same problem - no idea as to the cause.

[eplaksienko]

I am still working on shaman-ning it, I am almost there, If folks around will not find scientific solution, hopefully I would be able to give different delays and conversions

[eplaksienko]

What I can definitely see after investigation playing with stepping motor, there are delays in either changing status on pin or code interpretation 

[Steve French]

You've taken it farther than I have.  Please let me know what you come up with.

[eplaksienko]

I am working right now with idea to figure out what's the real delay between NGO and SB

I believe if this one solved we almost there

[Steve French]

If you find it you'e a better coder than me.  I could not isolate the problem at all, though after reading more about it recently I think I was looking in the wrong place.

[eplaksienko]

I was able to find delay I see progression, but it's definitely not enough

[Steve French]

Eplaksienko - did you ever find a solution to this?

[eplaksienko]

No, was busy with other staff, I think Secret Labs staff help would be very useful, since it's 99.99% lateness issue, not sure if it because NGO connectivity or SB itself or both. But we should be able to get from them numbers to make calculations better

[Chris Walker]

Hi eplaksienko, Trying to help nail down what you're experiencing here. Is it a latency issue? Are you getting bad data from the sensor? Not able to communicate fast enough? Not able to communicate at all? Chris

[eplaksienko]

Chris, I see incremental number while moving things further and excremental when going closer, but I can not tune exact number, I didn't yet figured out dependencies experimentally, but the same sonic sensor works great and gives exact calculated numbers with Arduino