#robotics Logs

Aug 29 2015

08:39 SpeedEvil No.
08:39 SpeedEvil It's mainly a mobile phone standard
08:39 MisterX aha k
08:40 SpeedEvil what are you truying to connect?
08:40 SpeedEvil to
08:40 MisterX uhm, not sure yet.. bought a cheap quadcopter with camera recorder and no transmitter
08:41 MisterX and wanted to connect it to raspberry pi
08:41 MisterX do we have Sd-card to usb cables?
08:41 SpeedEvil 'no'.
08:41 SpeedEvil They could in principle be made
08:42 SpeedEvil It is likely that it is inot a digital, but a composite out camera
08:42 deshipu how do you save composite out to an sd card?
08:42 deshipu sd cards are usually just SPI
08:42 SpeedEvil MisterX: what do you mean - is it a SD card recorder?
08:42 MisterX yeh
08:42 SpeedEvil MisterX: In that case, it is likely a all-in-one camera to SD card chip
08:43 SpeedEvil there are lots of tehm
08:43 SpeedEvil CSI in is common
08:43 MisterX aha, is there a way to konw for certain? by looking at it?
08:43 MisterX know*
08:43 SpeedEvil MisterX: looking at the camera?
08:43 MisterX yea
08:43 SpeedEvil It doesn't help - the Pi can't use any CSI camera, due to policy.
08:43 SpeedEvil It can only use one
08:44 MisterX aha
08:44 MisterX interesting
08:45 MisterX so a usb web camera would be better if you want more cameras?
08:45 MisterX or the only way?
08:45 SpeedEvil The Pi has USB2 in, shared amongst everything
08:45 SpeedEvil there is only one USB2 port.
08:46 SpeedEvil sharing cameras on USB2 doesn't work well IME
08:50 MisterX speedEvil, how about the new HDMI computer stick from intel? that one should be able to capture more then 1 camera?
08:50 MisterX through a usb hub?
08:50 SpeedEvil MisterX: again - it's got one USB as I understand it.
08:50 SpeedEvil What are you trying to make?
08:51 MisterX a uav with 2 cameras =)
08:51 SpeedEvil Do you mean FPV?
08:51 MisterX one to look straight forward and one gyrostabilized
08:51 MisterX but need more cameras then that i think
08:52 SpeedEvil you could just use a pi, with a webcam type thing pointed forward, and the pi cam forward
08:53 deshipu the camera modules from old laptops make nice cams
08:53 deshipu they are usb and quite light
08:53 MisterX aha cool, that should be more then enough for the first test
08:53 deshipu also cheap
08:53 SpeedEvil MisterX: what do you mean by a UaV
08:53 SpeedEvil 100g, 10kg
08:54 deshipu I have one of them hooked up to a VoCore
08:54 MisterX less then 10kg
08:54 MisterX but mostly need to to test many different designs
08:54 deshipu https://hackaday.io/project/3301-pico-kubik-quadruped-robot/log/14480-vocore-version-rebuild
08:55 MisterX bought a cheap 3d printer last week and gonna print out the bodies =)
08:55 MisterX it's awsome!
08:55 SpeedEvil http://nanopi.org/ may be interesting
08:55 deshipu the camera is that horizontal strip just below the hat
08:55 deshipu vocore is quite small and light, and has wifi built in
08:55 MisterX deshipu did you make that thing? xD
08:55 deshipu yes
08:56 MisterX speedEvil, awsome! gonna get a few of those i think
08:57 MisterX deshipu, cool xD i wanna make a walker too
09:00 deshipu MisterX: I have written a detailed guide on how to build one cheap: http://tote.trfd.org
09:00 deshipu that's rtfd.org, sory
09:17 MisterX hehe that's awsome!
09:17 MisterX it moves quite nicely!
09:18 MisterX have you tried to control it with mouse/keyboard? for more precise speed control
09:19 MisterX do you have a turn algorithm?
09:28 MisterX deshipu, in the walking algorithm you use, do you first shift the weight, then lift the the foot?
09:33 MisterX or both at the same time?
10:04 deshipu first shoft
10:04 deshipu shift
10:29 veverak any tips
10:29 veverak for rortary encoder which is up to 6cm dia
10:29 veverak and got 200 steps?
11:53 MisterX anyone know how to read pwm signals with arduino uno and print the values on a monitor?
12:06 Hyratel MisterX, Professor Google says - http://www.rcgroups.com/forums/showthread.php?t=1648040&page=2
12:45 MisterX hmm cool
12:45 MisterX thanx =)
13:05 MisterX PWM_lib_example.ino:13:17: fatal error: PWM.h: No such file or directory
13:05 MisterX compilation terminated
13:05 MisterX PWM_lib_example.ino:13:17: fatal error: PWM.h: No such file or directory
13:05 MisterX compilation terminated
13:05 MisterX what does this mean?
13:05 MisterX ops
13:05 MisterX came twice
13:05 robopal can't find it
13:06 MisterX can i add the library somewhere?
13:07 robopal from where is that
13:08 robopal I mean did you install some package or downloaded yourself in a local directory?
13:10 robopal I googled, its arduino library
13:14 robopal recheck if you have downloaded and installed in the correct place the library: http://forum.arduino.cc/index.php?topic=289973.0
13:21 deshipu I finally got VL6180X to work \o/
13:21 deshipu soldering the QFN package wasn't easy
13:25 robopal nice
13:27 deshipu https://cdn.hackaday.io/images/3679791440868472367.jpg <-- the broken out sensor
13:57 MisterX how are we supposed to find the code word...? i need to know what to type to read the PWM signal frequency
13:57 MisterX pwmWrite(13, pwmRead(9);
13:57 MisterX only the pwmWrite code works
13:58 MisterX pwmWrite(13, pwmRead(9)); *
18:53 mrdata_ http://glitch.news/2015-08-27-ai-robot-that-learns-new-words-in-real-time-tells-human-creators-it-will-keep-them-in-a-people-zoo.html
19:23 mrdata_ https://www.youtube.com/watch?t=24&v=UIWWLg4wLEY
20:16 rue_house ok, the phone system is back up
20:18 rue_house the phone system has now gone thru 2 motherboards, 2 power supplies, and 5 hard drive
20:18 rue_house s
20:19 mrdata_ frustrating
20:20 rue_house over about 15 years
20:20 rue_house 15?
20:20 rue_house 8?
20:20 rue_house hmm
20:23 rue_house I have a pile of hardware that its killed
20:23 rue_house this time, everything but the hard drives have been changed out
22:57 mrdata ugh
22:58 mrdata i had to hide joins/parts because opf this stupid bot, and its join-flooding
23:55 sherlock excess flood