"turning off the magnetometer will solve the issue !!!"
Artem Grigoryev's Discussions
Compiling ArduIMU sketch with Arduino 1.0.3
Started Feb 7 0 Replies 0 Likes
Anyone who uses ArduIMU and tried to upgrade Arduino from 0022 to the current version (anything past 1.0) discovered that good old firmware that was compiling just fine in the previous versions now…Continue
ArduIMU V3 all axes output wrong values!
Started this discussion. Last reply by Himanshu Agrawal Apr 11. 44 Replies 0 Likes
I cannot believe that I'm the only one who noticed that! I would write it off as a faulty device but I've got two brand new once here that produce identical output with the same unmodified firmware…Continue
ArduIMU+ magnetic heading
Started Jun 25, 2012 0 Replies 0 Likes
I'm having an issue with the magnetic heading coming from ArduIMU+ V3. Is it supposed to output close to 0 when you point the end opposite to the connector to north without any offsets? Currently…Continue
Aurdupilot stops navigating during waypoint upload.
Started this discussion. Last reply by Michael Oborne Jul 26, 2011. 7 Replies 0 Likes
This is kind of a big deal for any autopilot. If you use ardupilot with a data link and upload waypoints during flight (which is a standard feature for any autopilot) the unit stops flying the…Continue
Artem Grigoryev's Page
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ahmad replied to Artem Grigoryev's discussion ArduIMU V3 all axes output wrong values!"put this in DCM
void Euler_angles(void)
{
#if (OUTPUTMODE==2) // Only accelerometer info (debugging purposes)
roll = atan2(Accel_Vector[1],Accel_Vector[2]); // atan2(acc_y,acc_z)
pitch = asin((Accel_Vector[0])/(double)GRAVITY); // asin(acc_x)
yaw =…"
Pete Birley replied to Artem Grigoryev's discussion ArduIMU V3 all axes output wrong values!"Dave,
Did you ever get this working? I'm experiencing the exact same symptoms as you are with the scaling of roll and pitch values.
Cheers
Pete"
Bhaumik replied to Artem Grigoryev's discussion ArduIMU V3 all axes output wrong values!"Hey,I am not using DCM algo for arduIMU v3 cause it is not giving me correct anglular orientation.I have used only MPU6000 for orientation calculation.The function for used for calculation gyro angle is as below:
void Get_Gyro_Rates(unsigned long…"
Artem Grigoryev commented on Philip's blog post Altium DXP version of APM 2.5 design"My bad. I thought it was a done by hand. Just thought I would point out possible problem areas.
"
Artem Grigoryev posted a discussionCompiling ArduIMU sketch with Arduino 1.0.3
Anyone who uses ArduIMU and tried to upgrade Arduino from 0022 to the current version (anything past 1.0) discovered that good old firmware that was compiling just fine in the previous versions now throws all kinds of errors. After doing a quick search on the forum you discover that the official version is that "we don't support V1.0" for the IMU. Anyhow, just like many others here I just went back to the good old 0022 and forgot about that issue for a while. Until recently. I needed to…See More
Artem Grigoryev replied to Artem Grigoryev's discussion ArduIMU V3 all axes output wrong values!"Those are the only two changes I made as far as pitch and roll go. Today I tested it again to 60 degrees both pitch and roll but previously I went all the way to 90.
At rest pitch and roll should not drift at all. Accelerometer takes…"
Dave Whittington replied to Artem Grigoryev's discussion ArduIMU V3 all axes output wrong values!"Artem,
I just wanted to confirm that the two simple changes (GRAVITY=8192 and the two gain changes) are all that is required for you an ArduIMU 1.9.8 (neglecting YAW improvements - I don't use a GPS). I will retest my…"
Artem Grigoryev replied to Artem Grigoryev's discussion ArduIMU V3 all axes output wrong values!"I just verified my values again on a tilt platform with a digital protractor. My unit tracks angles (both pitch and roll) within a degree of the protractor. So it is something in your setup, software or possibly even hardware. Make…"
Dave Whittington replied to Artem Grigoryev's discussion ArduIMU V3 all axes output wrong values!"It is Nov 20, 2012 and I am testing a V3 board. I added Artem's two fixes in the ArduIMU.pde :
1)
#if BOARD_VERSION == 3#define SERIAL_MUX_PIN 7#define RED_LED_PIN 5#define BLUE_LED_PIN 6#define YELLOW_LED_PIN 5 // Yellow…"
Artem Grigoryev commented on Alexsey Novik's blog post Encouraging news on battery capacity"@Mark Harrison
I'm waiting for somebody to make covering material out of graphene sheets.
It…"
Caleb Anderson replied to Artem Grigoryev's discussion ArduIMU V3 all axes output wrong values!"Sorry for the delay. It's a V3.
I've given up on this aspect of my project and left a note on Sparkfun warning people away from this. I am willing to accept that people might need to do extra work to get things running, but when a product…"
Himanshu Agrawal replied to Artem Grigoryev's discussion ArduIMU V3 all axes output wrong values!"ya mine is purple one ...i will try to incorporate suggested changes once more.
any idea what changes do i need to make into the code if i want my gps to take readings periodically and switch it off for the remaining time..is it possible?
what does…"
Artem Grigoryev replied to Artem Grigoryev's discussion ArduIMU V3 all axes output wrong values!"Read the silkscreen on the back. Does it say ArduIMU V2 ArduIMU V3?"
Caleb Anderson replied to Artem Grigoryev's discussion ArduIMU V3 all axes output wrong values!"I think so. It's blue or purple. (I'm color blind)
I might play with this again tonight, but I'm rather disenfrachised by the whole idea now and will likely just use computer vision alone to get the data I need. I was hoping to…"
Artem Grigoryev replied to Artem Grigoryev's discussion ArduIMU V3 all axes output wrong values!"I thought I mentioned that the new raw output differs from the old raw output by the factor 83.51?
However don't even worry about it. If you implemented the first change everything should've worked. Your output capture is…"
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