I'm still at work, but I have a TSL2561 breakout board waiting in a box for me at home. I'll solder the headers on and see if I can replicate your results this evening. I'll try it with both the Arduino and the Pi and see if the numbers are in the same order of magnitude.
Search found 13 matches
Search found 13 matches • Page 1 of 1
- Mon Aug 26, 2013 7:35 pm
- Forum: Automation, sensing and robotics
- Topic: AUV project
- Replies: 1
- Views: 1686
TLDR? I thought I'd take a moment to introduce my little project. I'm designing and building an AUV (autonomous underwater vehicle). The design is basically an underwater airplane (with the airfoils inverted, of course). It will be positively buoyant, and require forward motion to remain submerged. ...
You are more reliable to get a stable connection if you use a RJ45 Ethernet Cable. Just plug one end of the cable into a Ethernet port in your router and the other end into the Pi's Ethernet port. True, but I have the Edimax USB WiFi and it works with Raspian out of the box. It should work! And the...
- Sun Aug 25, 2013 1:07 pm
- Forum: Beginners
- Topic: Finally got the RasPi up and working. Now what?
- Replies: 3
- Views: 804
It's always great to be an excited noob, and I'm excited for you! ;) I'd recommend (and this is just me) teaching yourself Python. There's a series of excellent books by Mark Lutz called "Learning Python," "Programming Python," and "Python Pocket Reference." I'm lucky t...
There is a way to do that in one step with the backtick execution operator: ls -l `which ssh` True that, but in the beginner's section I thought it easier to show the separate commands. OP, note the backtick operators in UNIX, which replace the text between the backticks with the output from that t...
Could you also give us the output of "which ssh" and then "ls -l path" where "path" is the output from the which command? This will tell us if you're using the right ssh command and what the permissions are. You <I>should</I> see /usr/bin/ssh -rwxr-xr-x 1 root wheel 732...
- Sat Aug 24, 2013 6:57 pm
- Forum: Camera board
- Topic: Streaming from camera rpi with necat and mplayer
- Replies: 9
- Views: 23405
I think there are option mismatches on various versions of netcat. The command that worked for me was nc -l 5001 | mplayer -fps 31 -cache 1024 - Which is very similar to the camera documentation. The command on the RPi was raspivid -hf -vf -t 99999 -o - | nc 192.168.0.6 5001 Now, I did have to fuss ...
Just for reference, I have a Pi with camera and USB WiFi, and my Mophie 4000mAH battery pack will run it for about four hours. Given what you're driving, I would suggest you add up the amperage you need and then calculate the size of battery you need to drive it all for three hours. That way you're ...
Having said that I would NOT buy power supplies on ebay. There is a significant chance of getting low quality and potentially dangerous fakes that way. I second plugwash's comment. Power supplies are inexpensive and plentiful from reputable sources (i.e., not E-bay), so I feel it's best to just use...
- Fri Aug 23, 2013 4:06 pm
- Forum: HATs and other add-ons
- Topic: gpsd failing on boot, but starts manually
- Replies: 15
- Views: 35201
Hi all. I have a AdaFruit Ultimate GPS board wired to a USB cable. It is running on /dev/ttyUSB0. I have run "dpkg-reconfigure gpsd" and set the values correctly. I have a powered USB hub into which the GPS is connected, so it never loses its fix when the Pi is shut down. When I reboot the...
- Tue Aug 20, 2013 8:36 pm
- Forum: Automation, sensing and robotics
- Topic: Noob power question
- Replies: 2
- Views: 736
I'm getting into the electronics side of things, so I'm waaaaay outside my comfort envelope (I'm much more of a coder). I'm trying to build an inertial guidance system (accelerometer, gyros, and GPS on the way - but that's another story). I need to be able to carry it around with me to train it what...
I get RPi program displays on my laptop by first connecting to the RPi with ssh -X email@example.com (obviously you'd need to use your correct IP address.) Then just start the program, e.g., arduino, and the display appears on my laptop (Mac, though - I'm not sure what X11 servers are available for Wi...