Himanshu Agrawal
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Himanshu Agrawal's Discussions

interfacing spi sram with arduimu v3

Started May 1 0 Replies

Has anybody interfaced SPI SRAM chip to ArduIMU+V3, Whenever I try to read data at some address after writing to the chip ( 23LC1024), it reads it only as either 0 or 255. Please suggest....anyone…Continue

Convert acceleration to distance values

Started this discussion. Last reply by Søren Kuula Mar 29. 3 Replies

Hi ,I am using arduIMU v3 . Can anyone please suggest how to convert acceleration values to corresponding distance values. I tried using basic one d= (ax)*t*t,since i am concerned only with movement…Continue

GPS power consumption

Started this discussion. Last reply by Luke Olson Oct 10, 2012. 1 Reply

Hi ... i am using this GPS with arduimu v3:…Continue

incorrect accelerometer and heading values!!!!

Started Sep 19, 2012 0 Replies

Hi...i am working with arduimu v3 ....what i found was that the heading values doesnt change by actual amount on rotating the board .If i turn it by 90 degress , heading may change only by 45-50…Continue

 

Himanshu Agrawal's Page

Latest Activity

Himanshu Agrawal posted a discussion

interfacing spi sram with arduimu v3

Has anybody interfaced SPI SRAM chip to ArduIMU+V3, Whenever I try to read data at some address after writing to the chip ( 23LC1024), it reads it only as either 0 or 255. Please suggest....anyone has sample code to read / write data to spi sram interfaced ?See More
May 1
0 Comments
Himanshu Agrawal replied to Artem Grigoryev's discussion ArduIMU V3 all axes output wrong values!
"turning off the magnetometer will solve the issue !!!"
Apr 11
Søren Kuula replied to Himanshu Agrawal's discussion Convert acceleration to distance values
"Hi, In physics as I know it, distance is the double integral of acceleration. You might have to use one of the old methods, like an optical mouse/flow sensor or distance measuring wheels.. Regards Soren"
Mar 29
Himanshu Agrawal replied to Himanshu Agrawal's discussion Convert acceleration to distance values
"Hi, Thanks for the reply . But there might be some or other alternative method to convert acceleration to corresponding distance values ?"
Mar 26
Søren Kuula replied to Himanshu Agrawal's discussion Convert acceleration to distance values
"Hi, I think nobody has ever gotten location by double integration of acceleration to work with other than very expensive hardware.. Regards Soren"
Mar 25
Himanshu Agrawal posted a discussion

Convert acceleration to distance values

Hi ,I am using arduIMU v3 . Can anyone please suggest how to convert acceleration values to corresponding distance values. I tried using basic one d= (ax)*t*t,since i am concerned only with movement in x direction and t as 0.125 seconds coz i record 8 observations per second . But the accuracy of above method varies with  speed of operation and many a times becomes completely unacceptable. If possible please do upload a sample Excel file. HimanshuSee More
Mar 25
3 Comments
Himanshu Agrawal replied to David Schwarz's discussion Arduimu v3 drift issue
"Hi harry ..how could enable airstart 0 could correct the drift issues ... there might be some another parameter....can u upload here the code u r using ...?"
Oct 26, 2012
Luke Olson replied to Himanshu Agrawal's discussion GPS power consumption
"I would not power down the GPS because it may take a while before it gets a fix again. Sometimes several minutes depending on the conditions. The power consumption of the GPS is very small (only 37mA) and would have no discernable impact on flight…"
Oct 10, 2012
Himanshu Agrawal posted a discussion

GPS power consumption

Hi ... i am using this GPS with arduimu v3:http://store.diydrones.com/MediaTek_MT3329_GPS_10Hz_Adapter_Basic_p/mt3329-02.htmlI wish to operate GPS only periodically i.e to take reading ...put it to power down mode and after some time again take the reading and so on .....how to do it...GPS has got an enable pin ...On setting Enable pin to 0 does the power consumption decreases..??Thanks in advance...See More
Oct 9, 2012
1 Comment
Himanshu Agrawal replied to Bob Beasley's discussion MTK 339 Sleep or low power mode
"HI...where to write these commands to turn gps to periodic power on and off mode"
Oct 9, 2012
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…"
Oct 5, 2012
Himanshu Agrawal replied to Alain Spineux's discussion AduIMU V3: MPU6000 Scale Range
"HI ..i got fine yaw values when i switched off the magnetometer with expected turn ...but problem is that there is a yaw drift ...any idea how to solve it ...? Also i want to take readings from GPS only periodically and switch it off for remaining…"
Oct 4, 2012
Himanshu Agrawal replied to Artem Grigoryev's discussion ArduIMU V3 all axes output wrong values!
"On keeping the magnetometer off ,there is drift is gyro(yaw)readings....any idea how to encounter this drift ...?? what changes do i need to put into the code if i want my gps to take readings periodically ...i.e switch on the gps ..take readings…"
Oct 4, 2012
Himanshu Agrawal replied to Artem Grigoryev's discussion ArduIMU V3 all axes output wrong values!
"ya i too tried the same what u have Caleb but not successful yet to operate my arduino at higher speed....i would like if Artem would specify the changes ance again more clearly ..... i the attached file column O denotes the corresponding total…"
Oct 3, 2012
Himanshu Agrawal replied to David Schwarz's discussion Arduimu v3 drift issue
"set use_magnetometer 0 and print_magnetometer 0"
Sep 27, 2012
Himanshu Agrawal replied to Artem Grigoryev's discussion ArduIMU V3 all axes output wrong values!
"yup it works f9 after disabling the magnetometer :)"
Sep 26, 2012

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