Suresh Ratnam
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  • Boulder, CO
  • United States
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Suresh Ratnam's Discussions

APM IMU Data via MAVLink Through USB

Started this discussion. Last reply by Ilya Jul 18, 2014. 1 Reply

Hi everybody, I have been trying to utilize this code but it does not seem to be working. I am currently using the c_uart_interface_example code . Specifically the…Continue

Tags: uart, heartbeat, usb, imu, mavlink

 

Suresh Ratnam's Page

Latest Activity

Ilya replied to Suresh Ratnam's discussion APM IMU Data via MAVLink Through USB
"Hello!        Did you solve the problem?"
Jul 18, 2014
Suresh Ratnam replied to Valentin Brossard's discussion Overriding Remote Control from a custom GS with MAVLink
"For some reason I can't reply to your new comments. You need to include the mavlink library files. They can be downloaded from the authors site. We did use the PID control for vertical control. Ran out time for lateral control. The project is…"
Jul 3, 2014
Suresh Ratnam replied to Valentin Brossard's discussion Overriding Remote Control from a custom GS with MAVLink
"The code does technically work. But i had issues with it moving too fast before the APM could register it. After putting sleep() commands in between to give it time to think, it armed. Look at the list of mavlink command structures from pixhawk…"
Jul 1, 2014
Suresh Ratnam replied to Valentin Brossard's discussion Overriding Remote Control from a custom GS with MAVLink
"Hi robert, were you able to arm and send it commands? That is the code that i have now. It sends some sort of command to the apm (It beeps everytime i call the code). However it doesnt seem to arm the apm. I am not sure what is going wrong. Any help…"
Mar 25, 2014
Suresh Ratnam replied to Valentin Brossard's discussion Overriding Remote Control from a custom GS with MAVLink
"Hi, I am working off of that send_quad_commands.cpp. However I am still bit lost as i just started coding with mavlink. This is what i have. I believe, i need to encode the message/command. Then write it to the port.but apparently the inputs to the…"
Mar 16, 2014
Suresh Ratnam replied to Valentin Brossard's discussion Overriding Remote Control from a custom GS with MAVLink
"That is great! Can I get bit more help on this? What is the line to send the message? Should i just have write() or some other mavlink command send function? Your help is highly appreciated!"
Mar 16, 2014
Suresh Ratnam replied to Valentin Brossard's discussion Overriding Remote Control from a custom GS with MAVLink
"what command are you sending to arm the quad? Whats the exact line? Also, arming the quad will not make the rotors spin. You have to send RC Override command"
Mar 16, 2014
Suresh Ratnam replied to Valentin Brossard's discussion Overriding Remote Control from a custom GS with MAVLink
"Valentin, Thanks for the reply. Based on your post, I was able to find out that command and the 400 with parameter 1 to arm and 0 to disarm.  However, I am still unsure what is the line in code to invoke. With the given library files,…"
Mar 12, 2014
Suresh Ratnam replied to Valentin Brossard's discussion Overriding Remote Control from a custom GS with MAVLink
"Hi Valentin, can i get more information on how you were able to arm the quad using #76? Also i am trying to use SET_ROLL_PITCH_YAW_THRUST ( #56 ). Currently I am able to request for IMU data but I am still trying to send commands to the quad. Any…"
Mar 11, 2014
Suresh Ratnam replied to Ryan Rasmussen's discussion Can somebody please explain MAVlink?
"Hi shyam, I have been trying to utilize this code but it does not seem to be working. I am currently using the c_uart_interface_example code . Specifically the mavlink_serial.cpp. I am just getting the heartbeat messages: It is still not working. I…"
Mar 5, 2014
Suresh Ratnam posted a discussion

APM IMU Data via MAVLink Through USB

Hi everybody, I have been trying to utilize this code but it does not seem to be working. I am currently using the c_uart_interface_example code . Specifically the mavlink_serial.cpp. I am just getting the heartbeat messages:Received message from serial with ID #0 (sys:1|comp:1): Received message from serial with ID #0 (sys:1|comp:1): Received message from serial with…See More
Mar 4, 2014
Suresh Ratnam replied to Dmitry Medvedev's discussion Connecting APM 2.5 and Single Board Computer via Mavlink: receiving sensors data and sending commands
"I am working on a similar project and was wondering if you managed to get the code to work? I think the issue was the code was not requesting attitude data stream. Ive tried including a line that should do that, but it still only gets the heartbeat…"
Mar 2, 2014
Suresh Ratnam replied to Jeff Rousseau's discussion How do I get lat/lon data from APMs Telemetry module?
"Jeff, I am having the same problem that you were having. I am currently using the c_uart_interface_example code . Specifically the mavlink_serial.cpp. I am just getting the heartbeat messages: It is still not working. I am new to MAVLink and its…"
Mar 2, 2014
Suresh Ratnam replied to Muye's discussion raspberry pi MAVlink communication via USB port (APM 2.5)
"Usman, Thank you for your insight. I am trying to achieve something similar. But due to budget constraints, we are using a Odroid X2 instead of the AtomBoard. We are new to the community but are catching up to speed real quick. We have the idea that…"
Oct 7, 2013

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About Me:
CU Boulder Aerospace Senior
Please tell us a bit about your UAV interest
Working on senior projects that involve autonomous quadrotor
Hometown:
Boulder

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