0 Copyright (c) 2024 ExpressionEngine tag:https:,2024:04:02 tag:https:,2024:/www.thisisant.com/forum/viewthread/.7711 2024-02-24T01:23:34Z 0 Rickon Wang We plan to develop a product that supports both heart rate and SDM.
MCU: NRF52832
Is this achievable?
We don't see Demo code that is supported both profiles at the same time. ]]> tag:https:,2015:/www.thisisant.com/forum/viewthread/.4550 2015-01-29T16:59:43Z 0 Vortant tag:https:,2014:/www.thisisant.com/forum/viewthread/.4411 2014-09-02T06:42:16Z 2014-09-02T06:42:59Z jjmonot
In the SDM sensor pdf document, calibration is presented as a process to be done by the receiver to enhance the stride calculation. Is that correct ? calibration is not done in the sensor itself ?

I would like to connect this sensor to an Android smartphone.

Have you any code example or explanation how to do calibration on the smartphone with data transmitted by the sensor ? It could help me to make some coding.

Thanks for the support.

]]> tag:https:,2014:/www.thisisant.com/forum/viewthread/.4396 2014-08-11T17:38:56Z 0 arrgh
Thanks ]]> tag:https:,2014:/www.thisisant.com/forum/viewthread/.4364 2014-07-02T03:32:39Z 0 aaron
"4.2.9 Page 4 – 127 Formats These pages are reserved for future use."

BUT:

ANTPlus_Verification_Tool_v1.4.0 & ANTPlus_Verification_Tool_v1.3.6
1: choose "Test a display"
2: Step 1. select the device type->Bike Speed Display
3. press "Pair"

Script message display:
" 52: w [4e][00][85][00][ff][ff][dc][11][1b][00] "

[85] why?

why is this not Page 0~3 or 0x80~0x83





]]> tag:https:,2014:/www.thisisant.com/forum/viewthread/.4307 2014-04-25T07:09:58Z 0 robin I am doing ANT+ certification test with tool v1.3.6. And i find out some problem with the received value on my display in case of following test:
Device Type : Speed And Distance (SDM) Display
F_SPD_SD_0006_Sweep.ants
Tool ask this question :" Does the display show cadence value sweeping between 3.45 ~ 11.42 Km/hr ? "

So Expected : 3.45 ~ 11.42 Km/hr and my result :0.45 ~11.4192 Km/hr
My Question : i want to know is this the problem with my code or tool has this issue? is it a Known issue?
as i have see many mismatch in Tool UI, during my testing. Please answer, thanks is advance.

thanks and regards
Robin Singh
]]> tag:https:,2013:/www.thisisant.com/forum/viewthread/.3969 2013-05-11T07:45:08Z 0 ioleynikov I use standard initialization sequence and after shaking the sensor the data broadcast will start.
Is it possible to activate the data broadcast from Garmin Foot Pod without shaking the device.
Thanks and Good luck. ]]> tag:https:,2013:/www.thisisant.com/forum/viewthread/.3941 2013-04-10T19:28:06Z 0 cydrollinger tag:https:,2012:/www.thisisant.com/forum/viewthread/.3510 2012-08-17T02:55:00Z 2012-08-17T02:59:28Z Chomp_Sharon
However, when it comes to calories data, able to see its values via the Channel Output window. But, no corresponding data is shown in the Current SDM Transmission Window. Please advice.

Attached is the output screen shot.
Thanks. [img size=660]http://www.thisisant.com/images/fbfiles/images/Screen.jpg[/img] ]]> tag:https:,2012:/www.thisisant.com/forum/viewthread/.2737 2012-03-15T16:07:51Z 0 iTMProcks
What I am trying to do is to calculate an avg speed over time. My expectation would be in this test that my avg speed over any period of time during this simulator session would be 6 MPH. However it is not, and I don't know what I am doing wrong. I believe I am correctly interpreting distance (including fractional distance) as well as speed (including fractional speed). I accumulate the distance received over time and then take time / distance to compute the average. While it is very close to 6MPH, it is not exact, and in fact fluctuates over the course of the test. It might be 5.86, then 6.12, then 5.93, etc.

Looking closely at the data coming in, I am most suspicious of the distance I am receiving. It veries quite a bit, and it is always expressed rounded to 1/4 of a meter. In other words I see distance coming in each received message as 1.25, 2.5, 1.75, 2.5, etc.

I guess I don't understand two things:

a) in a controlled set of messages being generated by the ANT+ simulator given a fixed speed of 6mph, why would the simulator generate such an array of varying distances? Wouldnt it send me the same meters travelled each time? I understand in real life with a footpod that the data would vary, but I dont understand why it would vary coming from the simulator.

b) I am suspicious that the distance in meters I am getting is rounded by .25 meter. It seems odd that it wouldn't be a more precise number.

Here is how I am interpreting distance:

float fDistanceInMetersWhole = rxBuffer[3];
char cDistanceFractional = rxBuffer[4] & 0xF0) >> 4);
// divide by 16 to get meters
float fDistanceFractional = (float)cDistanceFractional / 16.0;
// add to the whole number distance
float fDistanceInMeters = fDistanceInMetersWhole + fDistanceFractional;

Like I said, the numbers are very close, but given the controlled nature of this test I would expect them to be exact. Also I have code that handles rollovers.

Any help would be appreciated. ]]>