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by mattmiller
Mon Apr 29, 2019 1:36 pm
Forum: Networking and servers
Topic: Not able to pump Broadcast traffic from Pi
Replies: 2
Views: 216

Re: Not able to pump Broadcast traffic from Pi

JFI Some routers/switches suppress TCP/IP broadcasts so that can bring such projects to a halt
by mattmiller
Thu Apr 25, 2019 3:12 pm
Forum: Beginners
Topic: is dead 3V3 a widespread issue?
Replies: 15
Views: 786

Re: is dead 3V3 a widespread issue?

There has been an minor issue with shorting 3v3 to 5v causing the PMIC to die. We've done all that we can to prevent this sort of user error from damaging the board.
Does that mean changes have been made to to the original Pi3B+ design to mitigate this issue?

Is so , what changes have been made?
by mattmiller
Thu Apr 18, 2019 9:10 pm
Forum: General programming discussion
Topic: School Project Help
Replies: 19
Views: 2294

Re: School Project Help

<> means not equal to

I don't program in Python 3 but try replacing with != and see if that works
by mattmiller
Thu Apr 18, 2019 8:52 pm
Forum: General programming discussion
Topic: School Project Help
Replies: 19
Views: 2294

Re: School Project Help

As @gordon77 points out - I used Python 2 - hopefully it's just the print's that need translating
by mattmiller
Mon Apr 15, 2019 9:30 pm
Forum: Beginners
Topic: PI top laptops- how usable?
Replies: 13
Views: 603

Re: PI top laptops- how usable?

I use all sorts of physical computing devices - Pi, Arduino, Microbit and Crumble - all the others need control from another computer so remoting into the Pi is intriguing enough :)
by mattmiller
Fri Apr 12, 2019 8:22 pm
Forum: Python
Topic: When A MAC Address conencts to wifi/bluetooth trigger a gpio
Replies: 3
Views: 230

Re: When A MAC Address conencts to wifi/bluetooth trigger a gpio

Google for Amazon Dash button projects as this is exactly what they do - listen out for a Dash button powering up
by mattmiller
Tue Apr 09, 2019 12:52 pm
Forum: Automation, sensing and robotics
Topic: Defining Gps Area
Replies: 5
Views: 381

Re: Defining Gps Area

If you can afford to use another Pi with a camera and you can mount it to look across the area, you can get it to decide whether your car is exceeding its area bounds and send it a signal (i recommend MQTT for this). The hard part is getting the car to be uniquely recognised - you can use colour for...
by mattmiller
Mon Apr 08, 2019 12:22 pm
Forum: Automation, sensing and robotics
Topic: How to control robot using RPI through computer
Replies: 2
Views: 314

Re: How to control robot using RPI through computer

I've used MQTT to send positional information of a robot to/from a laptop with a camera
Once you've got the hang of using MQTT, its easy to use for this sort of thing
by mattmiller
Sun Apr 07, 2019 9:26 pm
Forum: Troubleshooting
Topic: WLAN MAC address changes at every reboot?
Replies: 14
Views: 1422

Re: WLAN MAC address changes at every reboot?

JFI I just tried rebooting my Pi3B+ to see what happens and its kept its MAC address of b8:27:eb:7f:21:68 so it doesn't happen to them all
by mattmiller
Sun Apr 07, 2019 8:01 am
Forum: Beginners
Topic: PI Zero W USB Gadget WIFI NOOB alart
Replies: 4
Views: 497

Re: PI Zero W USB Gadget WIFI NOOB alart

Hi
Could you describe what is not working for you in more detail?

And what is your end goal in wanting both working at the same time?
by mattmiller
Sat Apr 06, 2019 10:07 am
Forum: Beginners
Topic: PI top laptops- how usable?
Replies: 13
Views: 603

Re: PI top laptops- how usable?

The best VFM way to use a Pi is to plug in a keyboard,mouse and screen. - fraction of the price of a Pi Top setup If your having to move your a class set around then an integrated solution is more convenient. If your Pi are staying within one school, I'd personally run them headless and VNC into the...
by mattmiller
Fri Apr 05, 2019 9:25 am
Forum: HATs and other add-ons
Topic: HAT blocks or weakens WIFI
Replies: 12
Views: 1030

Re: HAT blocks or weakens WIFI

Got it now ta - didn't know the metal thing with raspberry logo was the WiFi chip!
by mattmiller
Fri Apr 05, 2019 8:48 am
Forum: HATs and other add-ons
Topic: HAT blocks or weakens WIFI
Replies: 12
Views: 1030

Re: HAT blocks or weakens WIFI

#LOL
I looked for a triangle shape but couldn't find it it (eyesight genuinely not good any more) - what big thing is it near ? :)
by mattmiller
Fri Apr 05, 2019 8:21 am
Forum: HATs and other add-ons
Topic: HAT blocks or weakens WIFI
Replies: 12
Views: 1030

Re: HAT blocks or weakens WIFI

JAAMOI Where is the wi-fi antenna on a Pi3B+ ?
by mattmiller
Fri Apr 05, 2019 8:02 am
Forum: General discussion
Topic: Raspberry PI3B+ is unusable as everyday computer "SOLVED"
Replies: 82
Views: 5871

Re: Raspberry Pi is unusable as everyday computer

Are you suggesting that instead of rattling on ad-infinitum (as is normal) that people should move on?

#Radical

:)
by mattmiller
Thu Apr 04, 2019 7:12 am
Forum: General discussion
Topic: eXeLearning
Replies: 3
Views: 270

Re: eXeLearning

Just had a quick look at it - I don't think it will run well at all on a Pi - looks very resource hungry

So I wouldn't go to the trouble of trying to compile it myself
by mattmiller
Thu Apr 04, 2019 7:05 am
Forum: General discussion
Topic: Raspberry PI3B+ is unusable as everyday computer "SOLVED"
Replies: 82
Views: 5871

Re: Raspberry Pi is unusable as everyday computer

I don't use any of my Pi as day-day machines - I use them for programming and gpio type stuff I've seen a few of these threads about is it suitable/is it not suitable as desktop machine so I decided to try it out just now (Pi3B+) Launched Chromium - loaded in gmail - all OK Loaded up BBC news websit...
by mattmiller
Thu Apr 04, 2019 6:22 am
Forum: General programming discussion
Topic: School Project Help
Replies: 19
Views: 2294

Re: School Project Help

I played with midi a while ago - this thread might give you some pointers to getting started

viewtopic.php?p=1275176
by mattmiller
Sat Mar 30, 2019 9:56 am
Forum: Troubleshooting
Topic: Sensehat unreliability, anyone else?
Replies: 11
Views: 413

Re: Sensehat unreliability, anyone else?

I've got two sensehats and not noticed any unreliability and I suspect its not a common issue You really have to test things like this out with a known reliable power supply. I have one official Raspberry PSU that I use for this (I use other ones for real-world projects) Until you've tried it out on...
by mattmiller
Fri Mar 29, 2019 9:09 am
Forum: Troubleshooting
Topic: VNC Interface won't stay enabled
Replies: 15
Views: 1107

Re: VNC Interface won't stay enabled

For some strange reason, no-one at RPi seems to have noticed that this issue keeps on being raised
by mattmiller
Sun Mar 24, 2019 9:42 pm
Forum: Python
Topic: Looking for a small hardware device to trigger a python script on my RPi
Replies: 15
Views: 1177

Re: Looking for a small hardware device to trigger a python script on my RPi

The amazon dash technique is just a program running that detects a device joining a LAN- it just waits for a specific MAC address to appear. You can use something like a WEMOS D1 mini and use its reset button to make it disconnect and reconnect to your LAN and then detect it rejoining Alternatively,...
by mattmiller
Thu Mar 21, 2019 3:57 pm
Forum: Beginners
Topic: Raspberry Pi, Ultrasonic Sensor and mini Breadboard
Replies: 5
Views: 385

Re: Raspberry Pi, Ultrasonic Sensor and mini Breadboard

JFI - You can now get Pi friendly ultrasonics that don't need resistors and work from 3.3V supply

I highly recommend using them instead of the old 5V ones

example of a 3.3V one
(note no metal can in-between the sensors)

https://www.ebay.com/c/564102643
by mattmiller
Tue Mar 19, 2019 9:27 pm
Forum: General discussion
Topic: SSH fails at a certain Windows PC
Replies: 11
Views: 582

Re: SSH fails at a certain Windows PC

My experience is that Win 10 networking is still not working consistently between Windows machines, so I would not be optimistic about diagnosing and fixing inconsistencies between Windows machines and Pis. :( I only have one Win machine on my house net so I'm probably just lucky that its working (...
by mattmiller
Tue Mar 19, 2019 7:24 am
Forum: General discussion
Topic: SSH fails at a certain Windows PC
Replies: 11
Views: 582

Re: SSH fails at a certain Windows PC

JFI Alternative info for Win 10 machines The need to install Bonjour is no longer required. Win 10 has mDNS built-in. ( I "proved" this when our school computers were replaced with Win 10 machines - they connected to my raspberry pi without Bonjour being installed) Having said that, for most of 2018...

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