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| How to calibrate the current sensor (HW v4 - OpenTx) https://www.spirit-system.com/phpBB3/viewtopic.php?f=20&t=4264 |
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| Author: | jjuk [ Sun 06. Sep 2020 16:14:16 ] |
| Post subject: | How to calibrate the current sensor (HW v4 - OpenTx) |
What's the process for calibrating the current sensor telemetry from a Hobbywing Platinum Pro V4 80A and OpenTx 2.3.6 ? On the OpenTx telem screen, the current (Amps) value changes between 17.xx amps and 23.xx amps. It's jumping around wildly, with no consistent value. It updates every half a second. My current clamp, attached to the battery, is reading a perfectly steady 21.17 Amps, with the heli on the ground, blades on, spooled up. So i need to know how to set up the radio so that the values are consistent. |
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| Author: | ZeXx86 [ Mon 07. Sep 2020 7:21:09 ] |
| Post subject: | Re: How to calibrate the current sensor (HW v4 - OpenTx) |
The best is to calculate depending on consumed capacity. What you will read from the telemetry after flight and then what you will read after charging. |
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| Author: | jjuk [ Mon 07. Sep 2020 9:02:10 ] |
| Post subject: | Re: How to calibrate the current sensor (HW v4 - OpenTx) |
So there is no need to calibrate the live current reading? I thought that was how the consumed consumption was calculated. I've going through packs on the ground trying to guess what the current consumption offset should be to get a reasonably consistent value that matches the recharged mAh. At the moment RB1A Offset is set to 5A which gives me a radio calculated consumed of 1000mAh and an actual consumed when recharged of 2100mAh, so this value is still too low, i'll try 10A next. RB1V is correct when a full pack is connected. > What value are you using for RB1A "offset" in OpenTx? |
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| Author: | ZeXx86 [ Wed 16. Sep 2020 12:46:20 ] |
| Post subject: | Re: How to calibrate the current sensor (HW v4 - OpenTx) |
There should be no offset configured. Only I-Motor Shunt value should be changed so that charged/consumed capacity will match. |
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