About

Gender

Male


Location

Dalarna


Please tell us a bit about your UAV interest

Started with UAV in december 2014, and trying to get everything up and the way I want it!! But it is a lot that can go wrong....


Hometown:

Nittkvarn


Activity Feed

Alf Pettersson replied to Alf Pettersson's discussion LightWare SF10/x via I2C?
"How can i set the parameter RNGFND_ADDR found in wiki parameter list?
Or is it for coming version of copter?"
Nov 27, 2015
Alf Pettersson posted a discussion
Help!!Tried to connect as in the wiki, but no readings?Do I have to change the I2C adress on the SF10/x, default 0x55?Running APM:Copter V3.3.1.Is it possible to see devices connected to the I2C bus?
Nov 27, 2015
Alf Pettersson posted a discussion
I have a LidarLite v2 that I use with Arducopter 3.3.1. Everything is fine as long as I fly below 15-20m but above that I only get correct altitude every now and then? It is connected to the I2C port with 700uF on +/- cabel powered from a separate…
Nov 15, 2015
Alf Pettersson replied to Randy's discussion Copter-3.3 beta testing
"Help!! I have Compass problems, calibrated OK but high offset on internal Compass. Have I done something wrong during config? As soon as I yaw I get EKF Compass errors it looks like MagY sometimes follows and sometimes mirrors?When I fly, land and…"
Nov 12, 2015
Alf Pettersson replied to Luis Carlos's discussion MAVLink message to get sonar altitude
"Look at https://pixhawk.ethz.ch/mavlink/ and search for rangefinder?"
Nov 10, 2015
Alf Pettersson replied to Cala's discussion Lidar Lite and other sensors are usefull for agriculture purposes? in ArduCopter User Group
"Only over feilds with grass not like yours crops?"
Nov 9, 2015
Alf Pettersson replied to Cala's discussion Lidar Lite and other sensors are usefull for agriculture purposes? in ArduCopter User Group
"Hi Cala,I have flown using LidarLite and I think that it is functioning best when I fly below 15 m above the ground. I have not seen it been affected of vibration, possible it will be affected by changes in angel? If I fly higher than 15 m it seems…"
Nov 9, 2015
Alf Pettersson replied to Rolf Blomgren's discussion APM MavLink to FrSky X8R S.Port converter
"Did some debugging and it was the LED routine who took too long time so it messed it up, changed the loop() so it only runs LED_process every 0,5 s, and then everything worked fine. //Affe"
Nov 6, 2015
Alf Pettersson replied to Randy's discussion Copter-3.3 beta testing
"HiI got this result after autotune on a X8, flys OK but values out of range or?"
Nov 6, 2015
Alf Pettersson replied to Rolf Blomgren's discussion APM MavLink to FrSky X8R S.Port converter
"Hi,
I tried the 2.1 version, but I get readings now and then. Some of the values like RSSI, SWR, RxBt and Cels (I use FLVSS) update often but the others comes and goes as they like, sometimes it can take 30-60 seconds Before a sensor updates?Could…"
Nov 4, 2015
Alf Pettersson replied to Randy's discussion Copter-3.3 beta testing
"Randy, You are right I can see some values in MP but as I wrote I cant scale them correct without loosing the decimals?My settings for batt2:BATT2_MONITOR -> 4        (Analog Voltage and Current)BATT2_VOLT_PIN-> 13       (in MP A12 not sure if this…"
Nov 2, 2015
Alf Pettersson replied to Randy's discussion Copter-3.3 beta testing
"Hi!

I tried to use battery_voltage2 and current2, readings get to Pixhawk but scaled wrong?I received 15355V, tried to scale it to 15,3V but then I only get 15V. Using a standard power module connected to ADC 3.3V.
Want to use 2 batteries in…"
Nov 2, 2015
Alf Pettersson replied to Alf Pettersson's discussion Lidar Lite and Copter V3.3
"PWM, as it was recomended in the manual?"
Oct 1, 2015
Alf Pettersson posted a discussion
I have problems with my LL (LidarLite) after take off I get a message from MP (MissionPlanner) "Bad Lidar Health" and then I get readings from LL every now and then?I Think I have installed Everything as in the manual.2015-09-30 10-22-20.zip
Sep 30, 2015
Alf Pettersson replied to Randy's discussion Copter-3.3 beta testing
"Hi Randy!For thoose who fly in an area without google maps altitude (for me Storlien, Sweden) and not so flat landscape it would be a great help to be able to set desired altitude to be used by Lidar, and then just plan the route.
Is it possible to…"
Sep 29, 2015
Alf Pettersson replied to Randy's discussion Copter-3.3 beta testing
"If I have a copter with LidarLite on it and fly a Auto mission and set the height to 25 m in mission planner will it use the Lidar to keep the height on 25 m above the ground?
I use to fly in areas where there is no terrain data so it would be nice…"
Sep 29, 2015
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