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Type: Posts; User: MJAChapman

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    The 3D representation suffers from serious jitter...

    The 3D representation suffers from serious jitter although the heading is reasonable. By the 'K' value I assume mean the gain?

    I shall use the original library version as it works well until we...
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    mjs513. I tried the updated algorithm and it...

    mjs513. I tried the updated algorithm and it worked better than last time but not as good as my version of the original Arduino library. So I do not recommend updating the library yet.

    Can you...
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    Thanks for your response mjs513. Yes it was a...

    Thanks for your response mjs513. Yes it was a drone website: https://diydrones.com/forum/topics/madgwick-imu-ahrs-and-fast-inverse-square-root?commentId=705844%3AComment%3A1840620. I created a...
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    Thanks Paul I understand the pressure. I have...

    Thanks Paul I understand the pressure. I have contacted Seb Madgwick in the hope that he can throw some light on the issue.
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    Magwick Library - is it current?

    I'm using your version of the Madgwick AHRS library (https://github.com/PaulStoffregen/MadgwickAHRS) and after some tweaks it seems to work very well, at least as good as the Freescale Kalman...
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    Thanks very much the post is what I was looking...

    Thanks very much the post is what I was looking for.
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    Thanks for your response grease-lightning. I...

    Thanks for your response grease-lightning.

    I have the card you're referring to so I'm aware of all the ports configured on the Teensy 3.2. As far as I understand the microcontroller has a...
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    Teensy 3.2 serial port pins

    Hi,

    I made a mistake when allocation Teensy3.2 and foolishly used the CAN bus Tx-Rx pins for UART serial comms on a PCB. Is it possible to reallocate the pins so that the CAN Bus Tx-Rx pins can...
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    I2C EEPROM issues

    The I2C Test Program. It's been tested using the Atmel Studio (with VisualMicro) IDE and the Arduino IDE so it should work.
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    Will do. I'll send it next week now.

    Will do. I'll send it next week now.
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    I have tried the new I2C library and it works as...

    I have tried the new I2C library and it works as well my existing I2C components except the EEPROM that throughs up the same error when a block change is performed.
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    Teensy 3.2 I2C Read/write to EEPROM

    16279

    I am having a problem with the Teensy 3.2 using the Arduino wire library. The associated functions are in the code file. The status is shown in the text file and the EEPROM is identified in...
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    What I should have said was 'fast enough' as I...

    What I should have said was 'fast enough' as I only store config data, e.g. 9DOF calibration constants for an AHRS. It also has a larger capacity; the one I use has 128KByte.
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    Thanks very much Paul I'm sure this will help....

    Thanks very much Paul I'm sure this will help. The other thing I'm looking for is performance. I found it much easier using an I2C EEPROM with the M0 processor as I've used this on previous projects...
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    Thanks for your help. I shall look into it.

    Thanks for your help. I shall look into it.
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    Teensy 3.2 EEPROM

    How does this work?

    From what I read the MK20DX has 32Kbyte of FlexRAM that seems mirror to Flash and the spec for the Teensy 3.2 says 2Kbyte EEPROM. Am I right in assuming that the processor...
  17. Accessing Teensy 3.2 underside pads.

    Thanks I hadn't thought of that!
  18. Teensy 3.2 Connections to the underside?

    There are many pads on the underside of the Teensy 3.2 and 3.6. Is the a means of connecting to these pads from a PCB?
  19. Thank you that was helpful.

    Thank you that was helpful.
  20. Using digital pins for external intterrupts

    I'm new to using the Teensy 3.2 and I've read somewhere that all the digital pins can be used to generate interrupts. On previous projects I've used the #include EnableInterrupt successfully but it...
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    NXP Motion Sense

    Thanks for your response but my application uses quite a lot of EEPROM write and read so am planning to add an I2C device to the board. The reason for using the M0 was its low power and sleep modes. ...
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    NXP Motion Sensing Library

    I have tried the Madgwick algorithm with the NXP FXOS8700 and FXAS21002 using the Adafruit breakout board from an Adafruit M0 processor and compared it with a compass based on the Bosch BA002...
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