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    Motion Sensor Calibration Tool Parameter Understanding

    We have deployed the calibration firmware and deployed at site performing rotating calibration at the time of deployement. But after few days, the YAW value has started showing fluctuation. It is not feasible for us to do the rotating calibration every time as it requires human-intervation at...
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    Offset related to Accelerometer and Gyroscope

    Hi Team, I am having unstable value of YAW, and as per my understanding it can be influenced by Magnetometer and Accelerometer. I am always getting zero values in cal[0] to cal[5] while performing rotating calibration through MotionCal.exe. Please help me to understand necessity of...
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    Offset related to Accelerometer and Gyroscope

    Hi, void readMotionSensor(float& ax, float& ay, float& az, float& gx, float& gy, float& gz, float& mx, float& my, float& mz) { if (!newdata) update(); newdata = 0; ax = (float)accel_mag_raw[0] * G_PER_COUNT - cal[0]; ay = (float)accel_mag_raw[1] * G_PER_COUNT -...
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    Teensy3.6 reset ssue while run on battery powered

    Auto-reset issue @WMXZ: How do you go to sleep? AFAIK, wake-up from deep sleep is reset MCU => We are waking up on RTC interrupt. We are using snoooze library available, and it is working perfect. @defragster: Short of an answer from Paul ... can only wonder about other active/essential...
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    Teensy3.6 reset ssue while run on battery powered

    On teensy3.6 LDO LP38691 which is onboard and getting output from it is 2.6V to 2.9V. I checked the PMC(Power Management Controller) module and in this module all the setting are at low voltage default. The LVDV(LVD trip point voltage) bits in the MCU is also set at low voltage(LVDV = 00). At...
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    Teensy3.6 reset ssue while run on battery powered

    https://forum.pjrc.com/threads/40313-Power-restart-on-Teensy-3-6 We have gone through the above link. The similar issue we are facing. Is there any conclusion what could be the solution to this problem?
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    Teensy3.6 reset ssue while run on battery powered

    Yes you obviously right. We have to power few other peripherals directly such as a zigbee radio, eeprom and other sensors. Teensy power is not sufficient to power all other peripherals. As per Kinetis K66 datasheet: the MCU should work fine without resetting even with the lower voltages as...
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    Teensy3.6 reset ssue while run on battery powered

    Hi, We are using Teensy3.6 in our sensor and we are using battery as a power source. We are supplying regulated 3V from a stable source to Vin pin of Teensy3.6. Generally it is working fine until sensor is not going to sleep. Problem occur when it is waking from sleep it automatically Teensy3.6...
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    Teensy 3.6 random restart issue and random wakeup

    Hi, I am using the teensy3.6 with teensy propshield. I am using the battery supply for power up the teensy. Teensy is waking every three hours for taking few readings and going back to sleep for battery savings purpose. I am using here the snooze library to keep the teensy in sleep mode. I am...
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    Motion Sensor Calibration Tool Parameter Understanding

    Yes, I implemented code and we succeed in the calibration. Here I am sharing you the link of github: https://github.com/ac1215/Magnetometer-Calibration If anyone can help it will good for me as a solution. If only any information than also it will helpful for me.
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    Motion Sensor Calibration Tool Parameter Understanding

    Thank you so much, Paul, for your support. As we tried to calibration inside the firmware that we achieved. We installed our device on the oil tank and also we calibrate our device on the tank where we installed. But the problem now we are facing is that with time being yaw value is changing...
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    Motion Sensor Calibration Tool Parameter Understanding

    Hi Paul, Thank you so much for providing the information. As earlier I said, we are trying to port Motioncal sourcecode for firmware in our device. But after porting the code we are facing the problem. We are not getting updated value of gaps and fit-error in firmware. After a few seconds we...
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    Motion Sensor Calibration Tool Parameter Understanding

    I am using Motion Sensor Calibration Tool for calibrate the Magnetometer Sensor. I want to know about the parameters which are showing quality of calibration. The parameters are: 1. Gaps 2. Variance 3. Wobble 4. Fit Error What is significant of above parameters and how they are useful for...
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    FXOS8700CQ(Accelerometer and Magnetometer) and FXAS21002C(Gyroscope) Axis Mapping

    Hey, we have tried that change for YAW. However, we are also having an issue with the Raw-Pitch behaviour. For the purpose for which our sensor is designed, the mounting is going to be vertical and while testing keeping the Hardware vertical, we are facing constraint with the linearity in Roll...
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    Teensy 3.6 and Propshield : Yaw value unstable

    I did the calibration for the shield+T3.6 and used for getting the yaw value supposed to be stable. But the problem is in some case I am getting the yaw values are stable and some case I am getting unstable yaw value after the calibration also. What will help me to get the yaw value to stable.
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    Teensy 3.6 and Propshield : Yaw value unstable

    Below code I am using for getting the roll, pitch and yaw value. #include <Wire.h> #include "NXPMotionSense.h" #include "MadgwickAHRS.h" NXPMotionSense motionOut; Madgwick filterOut1; void setup() { Serial.begin(115200); delay(2000); motionOut.begin(); filterOut1.begin(100)...
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    Yaw Values are not getting stable

    We are using NXP's FXOS8700CQ and FXAS21002C for getting roll, pitch and yaw. Roll and pitch values are getting right but yaw values not getting right. We are using NXPMotionSense library with Madgwick Filter. If we move the device on roll side than at the same time yaw is also changing same...
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    FXOS8700CQ(Accelerometer and Magnetometer) and FXAS21002C(Gyroscope) Axis Mapping

    Needs to adjust line: filter.update(gx, gy, gz, ay, ax, az, my, mx, mz); Is this valid change?
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    FXOS8700CQ(Accelerometer and Magnetometer) and FXAS21002C(Gyroscope) Axis Mapping

    Hello, @Paul, @mjs513, @KurtE, @Frank B Kindly can you please answer for above thread? Thanks, Ankit
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    FXOS8700CQ(Accelerometer and Magnetometer) and FXAS21002C(Gyroscope) Axis Mapping

    Hello, We are using both the ICs FXOS8700CQ(Accelerometer and Magnetometer) and FXAS21002C(Gyroscope) for measuring roll, pith and yaw. In our PCB both the ICs Axis(X-Axis and Y-Axis) mapping is not match with each ICs. Both ICs have is in different direction to each other. Here I am attaching...
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    How to calibrate accelerometer, magnetometer and gyroscope?

    I am using Teensy 3.6 and peripheral IC using which is FXOS8700CQ(6 axis linear integrated accelerometer with magnetometer) and FXAS21002(3 axis gyroscope). Library use which is NXPMotionSense from Paul Stoffregen. How to calibrate all these sensor? I tried with data which is given data for...
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