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by PiGraham
Sun Feb 18, 2018 9:08 pm
Forum: Automation, sensing and robotics
Topic: Long Range wifi for a moving vehicle
Replies: 10
Views: 315

Re: Long Range wifi for a moving vehicle

The usual way to connect data with a vehicle is to use GSM (for slow / small data) or 4G/LTE (mobile broadband for fast / big data) You can get in-car 4G to WiFi devices that take a SIM and enable any Wi-Fi device to connect to internet on the move. As with phones you have a choice of discounted dev...
by PiGraham
Sun Feb 18, 2018 6:32 pm
Forum: Wanted
Topic: If this is feasible - then I am going to need help
Replies: 7
Views: 276

Re: If this is feasible - then I am going to need help

Sun Feb 18, 2018 11:56 am But I'm curious. What USP do you think a Pi based device would have compared to Chromecast, Firestick, Smart TV's with the feature built in or any number of Android "TV sticks"? ............ Maybe I am missing the main point to begin with. I have been assuming the Pi set u...
by PiGraham
Sun Feb 18, 2018 6:06 pm
Forum: Graphics, sound and multimedia
Topic: pi player piano
Replies: 11
Views: 402

Re: pi player piano

You can also play notes in Scratch.
http://foxbotindustries.com/build-easy-floor-piano/
by PiGraham
Sun Feb 18, 2018 5:56 pm
Forum: Wanted
Topic: If this is feasible - then I am going to need help
Replies: 7
Views: 276

Re: If this is feasible - then I am going to need help

But I'm curious. What USP do you think a Pi based device would have compared to Chromecast, Firestick, Smart TV's with the feature built in or any number of Android "TV sticks"?
by PiGraham
Sun Feb 18, 2018 5:54 pm
Forum: Wanted
Topic: If this is feasible - then I am going to need help
Replies: 7
Views: 276

Re: If this is feasible - then I am going to need help

Sun Feb 18, 2018 11:41 am What do you want to 'cast' to where? Surely you need an internet connection to do it. ............ From a smart phone to a HD TV. As I understand it, the pi, using raspicast mirrors to the TV/RPi via SSH - no internet required. If someone does not have a "net" connection, ...
by PiGraham
Fri Feb 16, 2018 1:28 pm
Forum: Beginners
Topic: Distance sensor that penetrates glass
Replies: 25
Views: 766

Re: Distance sensor that penetrates glass

To sum up, there is no low cost option for measuring the distance between cars from inside the vehicle, right? No. There was this, which is cheap if you already have the phone, and demonstrates that it's possible to do well enough (not defined) with a single forward facing camera. Have a look on go...
by PiGraham
Fri Feb 16, 2018 8:04 am
Forum: Beginners
Topic: Replacing Arduino nanos with Raspi
Replies: 3
Views: 193

Re: Replacing Arduino nanos with Raspi

Hello, I am currently trying to replace a system run by Arduino nano to Raspberry pi. The individual systems are a with pump and an agitator. The pump and the agitator are individually connected to nanos and the nanos are connected to an Arduino UNO. The D0 to D7 pins on both the nanos are used and...
by PiGraham
Thu Feb 15, 2018 7:41 pm
Forum: Graphics, sound and multimedia
Topic: pi player piano
Replies: 11
Views: 402

Re: pi player piano

A printer mechanism feeding fanfold paper covered in dots under a row of photo sensors with blinking lights has some appeal, don't you think? With paper feed running it would even look like a player piano with paper naturally forming a cylindrical shape. You haven't said anything about plans for how...
by PiGraham
Thu Feb 15, 2018 7:33 pm
Forum: Networking and servers
Topic: Access Raspberry Pi without vpn or port forwarding
Replies: 10
Views: 381

Re: Access Raspberry Pi without vpn or port forwarding

How do you mean? I install VNC on the raspberry pi and on my webserver i call the raspberry pi using ssh? All my customers have multiple raspberry pi's so i need to address all of them individually. Will this be possible? Thanks If you setup the Pi to 'phone home', connecting to you publically acce...
by PiGraham
Thu Feb 15, 2018 3:58 pm
Forum: Networking and servers
Topic: Access Raspberry Pi without vpn or port forwarding
Replies: 10
Views: 381

Re: Access Raspberry Pi without vpn or port forwarding

How about reverse SSH and reverse VNC?
Make an outbound connection and receive commands back from the remote 'client'
by PiGraham
Thu Feb 15, 2018 3:37 pm
Forum: Troubleshooting
Topic: Epson Scanner...
Replies: 7
Views: 205

Re: Epson Scanner...

Maybe the source code is available. Maybe it can be built for Arm. Maybe it's not worth the effort.
by PiGraham
Thu Feb 15, 2018 3:14 pm
Forum: Troubleshooting
Topic: Epson Scanner...
Replies: 7
Views: 205

Re: Epson Scanner...

Just wondering, has anyone been successful in getting an Epson scanner (in my case a V500) to work with their Pi? From what I was reading, the drivers from Epson don't work with ARM processors, correct? Is there any workaround for this, or is this just not feasible? Epsom Perfection V500 Photo unsu...
by PiGraham
Thu Feb 15, 2018 2:30 pm
Forum: Python
Topic: Timer Interrupt with Python 3
Replies: 4
Views: 187

Re: Timer Interrupt with Python 3

I am not familiar with the code but a quick read suggested to me that the callback or interrupt function would have to restart the timer if you want it to be periodic, otherwise it will fire once and stop. But that is just my interpretation. Your variable a is actually two variables in different sco...
by PiGraham
Thu Feb 15, 2018 12:57 pm
Forum: Graphics, sound and multimedia
Topic: pi player piano
Replies: 11
Views: 402

Re: pi player piano

Are you teaching music or technology? How will the students make the holes? How will the punched sheets be fed? I fear that doing it by hand will distract from the musical aspects. A card punch that can make regular holes in registered positions would help a lot but that's a significant project in i...
by PiGraham
Wed Feb 14, 2018 3:28 pm
Forum: General discussion
Topic: Can I desolder the micro USB port in the pi zero and replace with usb c
Replies: 10
Views: 364

Re: Can I desolder the micro USB port in the pi zero and replace with usb c

Easiest solution is to use an plug adapter. https://www.amazon.com/Fheaven-Adapter-Connector-Connect-Samsung/dp/B01N5Q90XB/ That would be easiest, by far. The existence of the adaptor demonstrates that soundness of the basic concept. If you can make a connector wired as the adaptor it should work a...
by PiGraham
Wed Feb 14, 2018 3:26 pm
Forum: General discussion
Topic: Can I desolder the micro USB port in the pi zero and replace with usb c
Replies: 10
Views: 364

Re: Can I desolder the micro USB port in the pi zero and replace with usb c

Without the extra connections, the OP would lose the ability to plug in his cable without regard to orientation...a major selling point of USB-C. So while it may be physically possible to make the change, it is in some ways counterproductive. Orientation independence is achieved simply by placement...
by PiGraham
Wed Feb 14, 2018 2:37 pm
Forum: General discussion
Topic: Can I desolder the micro USB port in the pi zero and replace with usb c
Replies: 10
Views: 364

Re: Can I desolder the micro USB port in the pi zero and replace with usb c

This is not possible. USB-C ports have far more pins than the USB-2 ports used on the Raspberry Pi. Yes, but four of those pins are the same thing as a USB2.0 port. VBUS GND D+ D- The OP is about putting the Pi USB2.0 on a USB C connector, not giving a Pi a USB C port. If you could find a connector...
by PiGraham
Wed Feb 14, 2018 2:02 pm
Forum: Beginners
Topic: Detecting and identifying musical notes with the Raspberry
Replies: 2
Views: 127

Re: Detecting and identifying musical notes with the Raspberry

So get from sound wave to notes you'll need some software. https://www.google.co.uk/search?q=sound+to+notes&ie=&oe= Note Trainer - Real-Time Musical Note Detection with Raspberry Pi and Python https://www.youtube.com/watch?v=wkZW9Hgrnao If you wanted to try doing that yourself you could start with a...
by PiGraham
Wed Feb 14, 2018 11:40 am
Forum: Gaming
Topic: I just made the easiest way to make a raspberry pi into a handheld retro game console
Replies: 14
Views: 525

Re: I just made the easiest way to make a raspberry pi into a handheld retro game console

Looking at the Kickstarter video at 1:05 the way it is being held to use the joypad looks very awkward. It just doesn't look nice to hold.
by PiGraham
Wed Feb 14, 2018 11:03 am
Forum: Gaming
Topic: I just made the easiest way to make a raspberry pi into a handheld retro game console
Replies: 14
Views: 525

Re: I just made the easiest way to make a raspberry pi into a handheld retro game console

The eight sided shape (or ten sided solid if you prefer) doesn't look very ergonomic. It looks like it needs some curves and grippy materials.
by PiGraham
Wed Feb 14, 2018 10:57 am
Forum: Beginners
Topic: Distance sensor that penetrates glass
Replies: 25
Views: 766

Re: Distance sensor that penetrates glass

Have a look on google play store for "iOnRoad". There are other similar apps too. It seems to do a similar thing to your aims just using the phone's camera and gps. Using the camera might keep your costs down. That is interesting. I wonder how accurate their distance measurement is from a single ca...
by PiGraham
Wed Feb 14, 2018 10:11 am
Forum: Raspbian
Topic: Can Raspberry Pi3 install Windows XP With Bochs
Replies: 12
Views: 485

Re: Can Raspberry Pi3 install Windows XP With Bochs

It means the video is a lie and the guy filming it was not using a Raspberry Pi. https://i.imgur.com/yjqMcz8.png That, is a TinkerOS taskbar. You can see it at the very start of the video, 10 seconds in. Ah, OK. No surprise that there are fake videos out there. I did note there was nothing in that ...
by PiGraham
Wed Feb 14, 2018 10:02 am
Forum: Raspbian
Topic: Can Raspberry Pi3 install Windows XP With Bochs
Replies: 12
Views: 485

Re: Can Raspberry Pi3 install Windows XP With Bochs

?

First thing I see is an out of date ("doesn't work on Jessie", 2015) how to install Bochs on Raspberry Pi.
https://www.youtube.com/watch?v=xPsBJjrW_a4

What has TinkerOS got to do with anything?

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