Hi All:
During my ground tests, I found that the velocity measurement (in North-East-Down format) of UBlox GPS is not accurate as I expected. The experiment is like this:
1. fix a UBlox GPS unit on a trolley, which is initially stationery;
2
Read more…Many thanks in advance for any suggestion and experience first.
Need help on the following two issues:
1. Can someone confirm with me the directions definition of ArduIMU Ver2? Accroding to the mark at the bottom, the ArduIMU Ver2 follows right-hand
Read more…Hi All:
I need to use the HCM5843 magnetometer in my project urgently. Howver, now in our DIYDrones store, it is out of stock.
I am wondering Can I replace the DIYDrones-HMC5843 with Sparkfun-HMC5843?
It seems that they are the same in te
Read more…Hi All:
Does someone have experience using the Razor IMU, listed in Sparkfun: http://www.sparkfun.com/commerce/product_info.php?products_id=9623?
It seems the hardware setting is identical with ArduIMu + Magentometer. Since now DIY drones sto
Read more…I think I found a tiny error in the ArduIMU firware like follows:
in the arduimu.pde file, at the beginning
#define GRAVITY 101
#define Accel_Scale(x) x*(GRAVITY/9.81
should be .................. x/(GRAVITY/9.81
(after this modification, now I can o
Read more…Hello All:
I need an urgent help on the firmware uploading for ArduIMU ver2. The main problem is when I upload the firmware, Arduino shows "Uploading to the board", and nothing apprears then. And the arduIMU now is with RED & YELLOW LED consta
Read more…Dear All:
I just bought a ArduIMU v1 board and tend to build up an GPS-aided AHRS. Instead of the sensor boards, I tend to integrate an ADIS 16405 sensor with the board. The final aim is to integrate both the DCM algorithm and the accuracy of
Read more…Hi All:
Does someone has experience on Sparkfun FTDI basic 5V (http://www.sparkfun.com/commerce/product_info.php?products_id=9115)?
Can I use it + a normal usb cable for testing the ArduIMU+ v2? I check the port and voltage and should b
Read more…Hello All:Anyone has experience using Xbee 868 modem in an area where GSM 900MHz cellphone-band is used? I m wondering whether there will be severe interference problem since 868MHz is quite near to 900MHz?Another problem is is XBee 868 really with t
Read more…May I know that is MUX working also for PCM signal? From the ArduPilot project I know that it works totally fine with PPM signal.Any experience and suggestions are greatly welcome.Many thanks in advance.
Read more…Hello All:I am new in this forum but suprised to see many experts and fans here. Please give me a suggestion on recommending a suitable GPS module.The platform in my hand is a ESky-like coaxial helicopter. I need a GPS module for its precise position
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