Search found 23 matches
- Sun May 17, 2020 8:44 am
- Forum: General programming discussion
- Topic: Advice on software side of vr rover control project
- Replies: 2
- Views: 593
Advice on software side of vr rover control project
I have constructed a rover, with two small robot arms and one mounted camera capable of rotating horizontally and vertically. My plan is to be able to put on my Oculus Rift and be able to see the perspective of the rover. I want the servos controlling the rover camera to respond to the orientation o...
- Mon Feb 17, 2020 7:16 am
- Forum: Automation, sensing and robotics
- Topic: Difficulty with automated bots
- Replies: 1
- Views: 288
Difficulty with automated bots
I am making two automated bots that will (hopefully) recognize complex objects and react in various ways (path finding is the eventual goal) but I am having issues. I am using python, and I would like too send my usb camera image to a pc (to do the heavy computation) and then send commands back to p...
- Tue Jun 18, 2019 6:06 am
- Forum: Automation, sensing and robotics
- Topic: irritating battery limits
- Replies: 21
- Views: 2227
Re: irritating battery limits
OK, so i took a look at that specialized battery, and it definitely looks intriguing. The problem lies in that this solution would only work for the pi part of the robot, and would not allow function for the rest whilst charging. Ideally, I would need a circuit that could take a signal from a GPIO p...
- Sun Jun 16, 2019 9:17 pm
- Forum: Automation, sensing and robotics
- Topic: irritating battery limits
- Replies: 21
- Views: 2227
Re: irritating battery limits
OK, the regulator should(In theory) make sure that the voltage does not vary too much. As long as at least one battery is providing 2.1 amps to the pi, would there be any danger of burning out the pi or accidentally shutting it down? As long as all batteries do not run out at once and provide at lea...
- Tue Jun 11, 2019 11:39 pm
- Forum: Automation, sensing and robotics
- Topic: irritating battery limits
- Replies: 21
- Views: 2227
Re: irritating battery limits
If using 3 x lipo cells in parallel stepping upto 5v why not also use 3 x tp4056 charge management boards and some additional circuitry to issolate cells from load 1 by 1 for charging. That is a very good idea, but i am a little unclear as to how exactly i might set up such a circuit. What would be...
- Tue Jun 11, 2019 10:06 pm
- Forum: Automation, sensing and robotics
- Topic: irritating battery limits
- Replies: 21
- Views: 2227
Re: irritating battery limits
I am guessing the blue rectangle labelled 5v is a boost regulator? And the 'irrelevant control circuit' is a motor controller? You don't seem to have any battery balancing in place, just three Lipos connected in parallell. I would not recommend this, as it complicates matters. Better to stick to a ...
- Tue Jun 11, 2019 8:08 pm
- Forum: Automation, sensing and robotics
- Topic: irritating battery limits
- Replies: 21
- Views: 2227
Re: irritating battery limits
How can i safely connect batteries in parallel, then? using one big battery large enough would be intolerably expensive. Also, I looked it up and google says that lithium batteries cannot charge while discharging. Am I not understanding something that would allow this to happen? and yes, the labeled...
- Tue Jun 11, 2019 12:36 pm
- Forum: Automation, sensing and robotics
- Topic: irritating battery limits
- Replies: 21
- Views: 2227
irritating battery limits
Here is my basic circuit. Works, except that the pi must turn off when charging due to the limits of rechargeable batteries (cannot charge and discharge at same time). I would like to be able to control robot while charging. Is there any way to accomplish this?
- Wed May 08, 2019 8:05 pm
- Forum: Troubleshooting
- Topic: adafruit 16 channel servo driver will not let me make servo go limp
- Replies: 9
- Views: 726
Re: adafruit 16 channel servo driver will not let me make servo go limp
Thank you for your help guys.
- Wed May 08, 2019 12:08 pm
- Forum: Troubleshooting
- Topic: adafruit 16 channel servo driver will not let me make servo go limp
- Replies: 9
- Views: 726
Re: adafruit 16 channel servo driver will not let me make servo go limp
Basically, I want the servo to not fight to keep its position like it normally would. Once you run the code, the servo is always trying to get to a specific angle. This is not ideal when the servo is only needed for a few moments.
- Wed May 08, 2019 11:22 am
- Forum: Troubleshooting
- Topic: adafruit 16 channel servo driver will not let me make servo go limp
- Replies: 9
- Views: 726
adafruit 16 channel servo driver will not let me make servo go limp
from adafruit_servokit import ServoKit import time kit = ServoKit(channels=16) while True: kit.servo[15].angle = 180 time.sleep(1.2) kit.servo[14].angle = 180 time.sleep(1.2) kit.servo[15].angle = 0 time.sleep(1.2) kit.servo[14].angle = 0 time.sleep(1.2) kit.servo[14].angle = Null time.sleep(4) I ca...
- Tue May 09, 2017 4:15 am
- Forum: Troubleshooting
- Topic: realvnc and pi
- Replies: 12
- Views: 1554
Re: realvnc and pi
Ok, so it was not as horrible as it first seemed. I still have no idea what caused it to crash, but I booted in recovery mode afterwords. I reinstalled everything, and my original problem was solved! Thanks for you guy's help, and even though I still have no idea what I did.
- Tue May 09, 2017 12:18 am
- Forum: Troubleshooting
- Topic: realvnc and pi
- Replies: 12
- Views: 1554
Re: realvnc and pi
what do I do? was my pi just ruined? I did not do anything wrong, I just updated it!
- Mon May 08, 2017 10:35 pm
- Forum: Troubleshooting
- Topic: realvnc and pi
- Replies: 12
- Views: 1554
Re: realvnc and pi
ok wtf... I ran that command, the pi restarted really glitched out. There were no icons, then it crashed and now refuses to start. What the hell happened?
- Mon May 08, 2017 2:30 pm
- Forum: Troubleshooting
- Topic: realvnc and pi
- Replies: 12
- Views: 1554
Re: realvnc and pi
hey, sorry for the delay, I was in France for the last week. the output is what is shown in the previous comment. I think that perhaps I do not have the server running. What is the command to run realvnc from terminal? Thanks!
- Thu May 04, 2017 4:18 pm
- Forum: Troubleshooting
- Topic: realvnc and pi
- Replies: 12
- Views: 1554
Re: realvnc and pi
The option is gone from raspberry pi configuration menu, and the realvnc server is not anywhere. It should be in taskbar, but it is not.
- Thu May 04, 2017 3:33 am
- Forum: Troubleshooting
- Topic: realvnc and pi
- Replies: 12
- Views: 1554
realvnc and pi
My pi seems to be having a problem with realvnc. when I try to enable vnc, the option is gone. I do not mean greyed out, i mean GONE. Additionally, vnc server is not showing up if I install it. Any suggestions?
- Tue Apr 25, 2017 4:30 pm
- Forum: Automation, sensing and robotics
- Topic: L293d problems
- Replies: 4
- Views: 1046
Re: L293d problems
Ok, so 9 volts will not work? That is fine, I just need it to work with the pi GPIO pins, so I will find a way to use 5 volts. Where should the power pin be connected?
- Mon Apr 24, 2017 10:49 pm
- Forum: Automation, sensing and robotics
- Topic: L293d problems
- Replies: 4
- Views: 1046
L293d problems
I have been trying to get a motor driver working for some time now, and I am completely stumped. I have hooked up the components in the following fashion, yet the motor does not turn. I have quadruple checked the connections, and the motor and drive chip and battery and wires are all working when us...
- Sat Apr 15, 2017 4:19 pm
- Forum: General discussion
- Topic: Camera on screen
- Replies: 8
- Views: 1482
Re: Camera on screen
I meant vnc, sorry
- Fri Apr 14, 2017 8:09 pm
- Forum: General discussion
- Topic: Camera on screen
- Replies: 8
- Views: 1482
Re: Camera on screen
I use tightvncserver
- Fri Apr 14, 2017 3:54 pm
- Forum: General discussion
- Topic: Camera on screen
- Replies: 8
- Views: 1482
Re: Camera on screen
I tried cheese, and it worked great on the pi itself, but does not run over vpn. Running on terminal does not work either. I did the same with Camorama and Guview and tried others. Several work on the pi, but none work over vpn. I have like six different apps, and none work.
- Fri Apr 14, 2017 4:24 am
- Forum: General discussion
- Topic: Camera on screen
- Replies: 8
- Views: 1482
Camera on screen
Hey guys, this is my first post. I may have this in the wrong section, but if that is true, please forgive me. I wish to stream video from a usb webcam on my pi via vpn to my main computer, making a wireless cam. There are plenty of camera apps for the pi, but all of then do not work over vpn. I am ...