Mahesh Ganapathy
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Mahesh Ganapathy's Discussions

Arducopter does not stabilize

Started Jul 14, 2012 0 Replies

Hello All,This is my first flight of the arducopter with APM2.0 board. I have followed the instructions to every letter  but the copter seems to have a serious drift. I tried flying it only in…Continue

Tags: drift, Arducopter

Cannot connect to APM2 using mission planner

Started this discussion. Last reply by Mahesh Ganapathy May 14, 2012. 1 Reply

This is my first build and as the title says, I am not able to establish a MAVlink connection. I connected the APM2.0 to my windows7 machine and COM4 was assigned. Opened mission planner and flashed…Continue

Tags: connection, issue, no, Mavlink, planner

Unmanned Arial Men!

Started Feb 29, 2012 0 Replies

Got this link from Hackaday. How about trying this out with APM2 (with ArduHuman to go with it?) anyone?…Continue

Sniffing ZigBee packets

Started this discussion. Last reply by CensoredUser ExWikiNinja aka KF Mar 1, 2012. 1 Reply

I came across an interesting new item. Apparently, Travis Goodspeed has come up with a way to sniff…Continue

 

Mahesh Ganapathy's Page

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Mahesh Ganapathy posted a discussion

Arducopter does not stabilize

Hello All,This is my first flight of the arducopter with APM2.0 board. I have followed the instructions to every letter  but the copter seems to have a serious drift. I tried flying it only in Stabilize mode.I tried all troubleshooting options (level, auto level, sensor/esc calibration). But I can never get the arducopter to stabilize. I have included a video of my flight.I am using the jDrones frame with 850kv motors and 10x4.7 props.I need guidance on tuning my quadrotor for a more stable…See More
Jul 14, 2012
0 Comments
Jake Stew replied to Mahesh Ganapathy's discussion GPS Hotstart
"I'll give it a try in a couple weeks.  Right now I've got a lot going on and haven't been flying much."
Jun 7, 2012

ModeratorDean Wynton replied to Mahesh Ganapathy's discussion GPS Hotstart
"If that is correct? then yes just plug it in, I would have probably tried something by now, but only have a gas soldering iron which is far too cumbersome for the task, need a new electrical one :) But I am getting a lock within a couple of minutes…"
Jun 7, 2012
Jake Stew replied to Mahesh Ganapathy's discussion GPS Hotstart
"I was thinking about maybe a switch or some sort of connector so that you could remove it when not needed. BUT... It looks like the current draw is very minimal, some docs suggest a 200 day battery life.  Since I can get the batteries 3 for $1…"
Jun 6, 2012

ModeratorDean Wynton replied to Mahesh Ganapathy's discussion GPS Hotstart
"If you want to go the whole hog? you could make it microprocessor controlled? i.e it will only switch on when there is no current from the apm? and stay on for a set period of time, like 5 minutes? more than enough time to change batteries, or a…"
Jun 6, 2012
Jake Stew replied to Mahesh Ganapathy's discussion GPS Hotstart
"Data sheet seems to show 2.0V-4.3V for Vbat.  So a 3V button cell should do fine even with a diode. I'll have to check what the APM is supplying, hopefully 3.3-3.6v. If the battery voltage - diode voltage drop is greater than 2v but less…"
Jun 6, 2012

ModeratorDean Wynton replied to Mahesh Ganapathy's discussion GPS Hotstart
"That sounds o.k to me Jake? but depending on what diode you use there will be around a 0.9v drop. Maybe a schottky diode? would be best.."
Jun 6, 2012
Jake Stew replied to Mahesh Ganapathy's discussion GPS Hotstart
"Any more details on the problems? I don't see how removing a possibly noisy power line to the vbat and connecting a clean battery powered supply could cause problems?   We really should fix this problem with the GPS.  How about…"
Jun 6, 2012
Brad Pittevski replied to Mahesh Ganapathy's discussion GPS Hotstart
"Right! Thanks Dror. QATC"
Jun 6, 2012
Dror Caspi replied to Mahesh Ganapathy's discussion GPS Hotstart
"I suppose this is the same discussion as this one http://diydrones.com/profiles/blogs/add-a-backup-battery-on-the-mtk-gps-module?xg_source=msg_com_blogpost&id=705844%3ABlogPost%3A875588&page=1#comments Note that my hack implemented the…"
Jun 6, 2012
Brad Pittevski replied to Mahesh Ganapathy's discussion GPS Hotstart
"Hi Mahesh, you can add a backup battery to the MT3329 on the APM2 if you like. Check page 10 here: https://docs.google.com/file/d/0B_dHj7E2weiiNmUzNDA3OTktNTNhNy00Y2Y5LTg0YTQtMzIyNzJhZmFiNjcy/edit?pli=1 "
Jun 6, 2012
Mahesh Ganapathy replied to Mahesh Ganapathy's discussion Cannot connect to APM2 using mission planner
"An update on this. After several retries, mission planner connected and tried to read the parameters. It failed at this point with the message "Your serial link isn't fast enough". I have attached and image of the error details. Also,…"
May 14, 2012
Mahesh Ganapathy posted a discussion

Cannot connect to APM2 using mission planner

This is my first build and as the title says, I am not able to establish a MAVlink connection. I connected the APM2.0 to my windows7 machine and COM4 was assigned. Opened mission planner and flashed the firmware for quad. Then I hit connect. The connection status popup countsdown from 28 and fails with the error message "No heartbeat received". When I hit terminal, I am able to connect to the APM2.0 board. I did erase the EEPROM to test the connection.Initially, the blue LEDs (on GPS and on…See More
May 14, 2012
1 Comment
Mahesh Ganapathy posted discussions
Feb 29, 2012
Mahesh Ganapathy replied to Marc's discussion APM 2.0
"I just saw that the store had the APM2.0 in stock. Previously, the buying options had the GPS and the triple axis magnetometer (or was it the barometric pressure sensor) under options but now it only shows GPS as an option. Does it mean that the…"
Feb 24, 2012
Mahesh Ganapathy replied to Mahesh Ganapathy's discussion First timer questions
"Thanks Arashi, I finally got my components except for the "Great APM2.0". The only deviation was that I got a Turnigy A-6-10 200W as opposed to the HK model since it was out of stock. Here is a comparison of prices that I did as I bought…"
Feb 22, 2012

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Had my basics in instrumentation and control about 7 years back and I have been in IT ever since. I would like to pick up my passion and start playing with my own robotics stuff :)

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