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by ElEscalador
Fri Jul 05, 2019 1:56 pm
Forum: General discussion
Topic: Does the pi throttle for temperature regardless of OS?
Replies: 5
Views: 339

Re: Does the pi throttle for temperature regardless of OS?

Thanks. This made the most sense to me, but I have learned through years of troubleshooting devices that I had better not rely on anything being built or programmed in the manner that seems to make the most sense,
by ElEscalador
Thu Jul 04, 2019 9:18 pm
Forum: General discussion
Topic: Does the pi throttle for temperature regardless of OS?
Replies: 5
Views: 339

Does the pi throttle for temperature regardless of OS?

I just realized I have no idea if temp monitoring and throttling happens somewhere in firmware or if it's handled by Raspbian. Does it still throttle if running something else like lubuntu?
by ElEscalador
Wed Jul 03, 2019 2:48 pm
Forum: General discussion
Topic: Pi 5 needs only one upgrade, please
Replies: 1
Views: 201

Pi 5 needs only one upgrade, please

Fan pins. All these extras on the 3b+ and now the 4 and all I really wanted was an extra pair of pins (5v/gnd) to plug a doggone fan into without losing the ability to plug a standard 40 pin cable into my GPIO header.
[/rant]
by ElEscalador
Mon Jul 01, 2019 1:52 pm
Forum: Other projects
Topic: non programmer needs to build an all inclusive pool controller
Replies: 15
Views: 527

Re: non programmer needs to build an all inclusive pool controller

Start with identifying what parts you need to control. I'm going to guess...pump..maybe heater? No idea what else. Those would most commonly be turned on and off, rather than needing varying signals to control. This would most commonly be done with relays. So you need to learn how to control a relay...
by ElEscalador
Thu May 23, 2019 12:02 pm
Forum: Beginners
Topic: wifi remote access to usb Camera within c++ application
Replies: 1
Views: 64

Re: wifi remote access to usb Camera within c++ application

What does the program need to be able to do with the images? I know there are better, more elegant, more "correct" ways but the easiest thing I found was to use a system("command line command here") call to take a pic and then another to email the pic/video to myself and push it to dropbox and//or e...
by ElEscalador
Sun May 12, 2019 3:56 am
Forum: Advanced users
Topic: i am working on surveillance robot using Rpi 3 b+ need to good algorithm for self navigation
Replies: 5
Views: 397

Re: i am working on surveillance robot using Rpi 3 b+ need to good algorithm for self navigation

Look up A*? Or go with ROS and try gmapping or hector...not really enough info and likely gps alone will not be adequate. There is so much error in sensors that typically a bunch are used and the data fused and vetted. indoor? Outdoor?
by ElEscalador
Tue Apr 09, 2019 1:19 pm
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: Detecting AC current using DC transformer
Replies: 4
Views: 439

Re: Detecting AC current using DC transformer

The issue I would be wary of is you ac-dc converter may not (or may, I don't know anything about it) be filtered enough to prevent the pin from reading low 50 or 60 times/second. This could be handled with software debouncing... I also might wonder if that supply might start with a big voltage spike...
by ElEscalador
Fri Mar 01, 2019 10:37 pm
Forum: Automation, sensing and robotics
Topic: How to use accelerometer to monitor rotating machine health
Replies: 2
Views: 221

Re: How to use accelerometer to monitor rotating machine health

What are you looking to find? Changes in velocity? Wobble from perhaps bad bearings? Not sure what you need, but it sounds like you have more problems with the physics than the device usage? The units you read are in milliG's (from the couple that I've used), sometimes configurable to output meters ...
by ElEscalador
Fri Mar 01, 2019 10:30 pm
Forum: Beginners
Topic: Question about writing code on/for the Pi
Replies: 15
Views: 467

Re: Question about writing code on/for the Pi

I personally find it easiest to vnc into my pi and develop directly on it that way, but once in a while I'll work on my laptop and send the files over - in the past I've used dropbox, more and more I use gitlab.
by ElEscalador
Thu Feb 28, 2019 3:36 pm
Forum: General discussion
Topic: PiCam V1.3 works but not V2 with Octopi?
Replies: 1
Views: 149

Re: PiCam V1.3 works but not V2 with Octopi?

Baffled... I can't get this v2 camera to fail on any other pi I have - (zero, 2b, 3B) with variously-aged distros, but still no go on the octopi...which should just be a raspbian distro with the octo-stuff preloaded. Although.... ...The octo is on the only 3B+ I own (accidental purchase - speed bump...
by ElEscalador
Thu Feb 28, 2019 3:31 pm
Forum: General discussion
Topic: Any chance of the SD Copier util working on ubuntuMatePi?
Replies: 3
Views: 172

Re: Any chance of the SD Copier util working on ubuntuMatePi?

Anyone know if the copier util is actually a program called piclone? That's all I can find on github.
by ElEscalador
Thu Feb 28, 2019 1:49 am
Forum: General discussion
Topic: Any chance of the SD Copier util working on ubuntuMatePi?
Replies: 3
Views: 172

Any chance of the SD Copier util working on ubuntuMatePi?

Have a Pi running UbunutMate for ROS purposes and am a big fan of the GUI sd copier tool on Raspbian. Any chance of it working on Ubuntu Mate? And how might one go about installing it?
by ElEscalador
Thu Feb 28, 2019 1:44 am
Forum: General discussion
Topic: PiCam V1.3 works but not V2 with Octopi?
Replies: 1
Views: 149

PiCam V1.3 works but not V2 with Octopi?

New to Octopi - and it's working fine with a v1.3 camera on a new 3B+ but I tried to swap a V2 with a fisheye lens in place of the 1.3, but it refuses to stream or light up or anything. Checked my cables...even went back and forth a couple times and v1.3 just works and v2 does not. Verified the V2 a...
by ElEscalador
Mon Feb 25, 2019 4:54 pm
Forum: Troubleshooting
Topic: LIDAR and rasp
Replies: 2
Views: 111

Re: LIDAR and rasp

Yes, I have but also yes - we need more information to be helpful. We need type of lidar (model and manufacturer), what language are you using? Are you getting any data at all or is the device just not connecting? How is your device powered and connected?
by ElEscalador
Fri Feb 22, 2019 1:38 pm
Forum: Automation, sensing and robotics
Topic: Ultrasound sensor alternatives?
Replies: 11
Views: 1231

Re: Ultrasound sensor alternatives?

VL5xxx all the way, buuut - I ordered a couple and was disappointed that the manufacturer wanted me to install 25+pages worth of api instead of providing a normal register map like every I2C device in the world. Went with a 360 degree lidar instead and haven't gotten around to messing with it, but I...
by ElEscalador
Tue Feb 12, 2019 1:09 pm
Forum: General discussion
Topic: Pi to Pi python communication
Replies: 10
Views: 426

Re: Pi to Pi python communication

Nice, saving that.
by ElEscalador
Tue Feb 12, 2019 12:36 pm
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: Using both UARTs to monitor/inject data
Replies: 2
Views: 194

Re: Using both UARTs to monitor/inject data

If I understand what you want to accomplish, you may not need two uarts - to me it sound like you can use just the rx pin to listen to the keyboard, and just the tx pin for sending to the Atari. Unless you need to read AND write to these devices, in which case... You could try bit-banging with pigpi...
by ElEscalador
Sat Feb 09, 2019 1:41 pm
Forum: General discussion
Topic: Pi to Pi python communication
Replies: 10
Views: 426

Re: Pi to Pi python communication

1. Allegedly MQTT..it's cool and probably easier with python - I had some hiccups with C++ but it's great once it works. 2. Little uart tx/rx wireless transceiver chips of all sorts out there pretty cheap now. Then you can just use uart comms like the PIs were just wired together. More parts, but so...
by ElEscalador
Wed Feb 06, 2019 12:29 pm
Forum: Troubleshooting
Topic: RPi GPIO Activates on Hard Shutdown/Power On
Replies: 8
Views: 348

Re: RPi GPIO Activates on Hard Shutdown/Power On

I use a pi for my garage and had a...simliarish problem. Not so much holding, but upon booting the relay for the garage door would chatter as the pi booted and gpio pins toggled, causing the door to open with every power hiccup. The quickest solution (and it's worked for years now and I've implement...
by ElEscalador
Wed Feb 06, 2019 12:17 pm
Forum: General discussion
Topic: Host name change on Pi with Ubuntu Mate, now cannot SSH
Replies: 14
Views: 483

Re: Host name change on Pi with Ubuntu Mate, now cannot SSH

Ahhh...after that bout of epic ignorance, I am now able to get in with the proper IP address. For some reason, I can get into my two other linux machines at home (old netbook and my garagePi) by host name, but this one requires the ip address. Now if I could just get realvnc into cloud service mode...
by ElEscalador
Tue Feb 05, 2019 9:02 pm
Forum: General discussion
Topic: Host name change on Pi with Ubuntu Mate, now cannot SSH
Replies: 14
Views: 483

Re: Host name change on Pi with Ubuntu Mate, now cannot SSH

Ohhhhh... Complete lack of understanding of IP addresses and such on my part - I thought local meant within my network. That makes more sense. Appreciate the handholding.
by ElEscalador
Tue Feb 05, 2019 8:44 pm
Forum: General discussion
Topic: Host name change on Pi with Ubuntu Mate, now cannot SSH
Replies: 14
Views: 483

Re: Host name change on Pi with Ubuntu Mate, now cannot SSH

I see...but I don't see. That is - I don't know what part of the ssh -v indicates it's connecting to itself.
by ElEscalador
Tue Feb 05, 2019 8:02 pm
Forum: General discussion
Topic: Host name change on Pi with Ubuntu Mate, now cannot SSH
Replies: 14
Views: 483

Re: Host name change on Pi with Ubuntu Mate, now cannot SSH

Update: I vnc's back into my garage pi and with ifconfig, it does seem that Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 inet6 addr: ::1/128 Scope:Host UP LOOPBACK RUNNING MTU:65536 Metric:1 RX packets:33286 errors:0 dropped:0 overruns:0 frame:0 TX packets:33286 errors:0 dropped:0 ov...
by ElEscalador
Tue Feb 05, 2019 7:55 pm
Forum: General discussion
Topic: Host name change on Pi with Ubuntu Mate, now cannot SSH
Replies: 14
Views: 483

Re: Host name change on Pi with Ubuntu Mate, now cannot SSH

That's crazy... I'll have to dig into the router and see what it thinks is happening. Interesting thought about the password...keyboards... I may burn a fresh image and start over too, but I'd really like to understand everything too. Drawing? Oh..like the machines on the network and their internal ...
by ElEscalador
Tue Feb 05, 2019 6:42 pm
Forum: General discussion
Topic: Host name change on Pi with Ubuntu Mate, now cannot SSH
Replies: 14
Views: 483

Re: Host name change on Pi with Ubuntu Mate, now cannot SSH

Something new while trynig to get you that output (Possibly becuase I vnc'd into another pi at home and used that from work to try and SSH into my ROS Pi?) I now got as far as a password screen. I am confident I am typing the correct password, but still getting permission denied. Something about a p...

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