Query "?a"

10 years 2 months ago #29525194 by dlauria85
Query \"?a\" was created by dlauria85
Hello,

i\'m sending the query \"?a\" to the AX1500 in order to know the Amps flowing from the battery to motors but it returns an hexdecimal value (for example \"05\") which converted to decimal is 5...the problem is that it does not correspond to 5 ampere (I\'ve measured it with a multimeter). How can I do to get the right value (around 1.25 ampere)?

Thank you
Davide

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10 years 2 months ago #29525196 by dlauria85
Replied by dlauria85 on topic Re:Query \"?a\"
any ideas?

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9 years 3 weeks ago #29525911 by kab
Replied by kab on topic Re:Query \"?a\"
According to the documentation, there is a 10% error margin.
In your case the error is 300%...
Did you install the latest firmware update?

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9 years 3 weeks ago #29525913 by roboteq
Replied by roboteq on topic Re:Query \"?a\"
On the AX1500, you need to divide the reply by 4 to get the amps

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8 years 4 weeks ago #29527357 by josemdn
Replied by josemdn on topic Re:Query \"?a\"
Hello,

I have the same problem with the HBL2350 and a brushless motor because I put a multimeter to mesure amps and when Roborun is giving to me 4A, the multimeter says 0,86A.
Is any solution to fix that issue? Is something wrong in the motor controller or something else?

Thanks!

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