Raspberry Pi Forums

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tufty, When I said: "As for the argument that doubling the RAM is going to encourage sloppy Windows like programming," I did go on to talk about the intended audience. That is youngsters and others that are new to programming or new to interfacing to their robots and other gadgets in the real world....

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Good grief, what is it with all the whiney brats complaining that they got what they orderd? There might be a case to complain that what you ordered took a log time to be delivered but anyone who was paying attention would realize what an amazing phenomena has unfolded with the raspi in recent month...

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Traditionally developers of embedded systems using Linux and file systems on large FLASH devices have disabled swap and logging and anything else that regulary writes to the files system. The reason being that those FLASH devices wear out after a limited number of writes. If you have an embedded sys...

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Let's just say it's from the guy who put together Turbo Pascal. He was smart enough to get MS to pay for the development effort:)

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Ahhhgg..I was getting all ready to hate TypeScript. It's from Microsoft... but it has an open source licence... It's hosted on an MS site... but it can be installed via npm...it has already been forked elsewhere 5 times. It's MS trying to "embrace and extend" JavaScript.. but it's adopting things al...

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Tiger54, After this week, I can say that raspberry is a pre alpha project and only linux-gurus can create something on this board.... ...get a better board, where I can show up some images... I think you being unnecessarily harsh on the Pi. Qt5 is still under development. It is not an official stabl...

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Have you tried the node.js instructions from botdream discussed on the other node.js thread here?
You can find them here: https://github.com/nneves/Raspberrypi_NodeJS He covers both Raspian and regular Debian. Worked fine for me for node.js v0.8.2 and I hace serial_port working as well.

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No reason not to do that. Then you can control your GPIO from anywhere on the net.
You will need a web server for that. Just happens you can use node.js as web server as well as a web socket server. However I am now trying to use nginx for the seb server.

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MrBunsy, You cannot access things like the GPIO from JavaScript in your browser. Browsers are built to be secure and so don't allow for direct interaction on your machine like that. The usual way to this would be to have a web server running on your Pi which can access the GPIO from scripts written ...

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Well, we are here on the Raspian section of the Raspberry Pi forums. There is a neighbouring thread for regular Debian. Raspian is specially rebuilt version of Debian using the harware foating point support of the Raspberry Pi. I belive the Debian is "armel" and the Raspian is "armhf". So my suggest...

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Darkstar, It is lighter and more stable than say Python. I'm curious. In what way is Python not stable? It has worked in flawlessly in production code for a long time now. I have to say though, that Lua is a wonderful thing. It can be used on systems much smaller than the Pi and much smaller than wh...

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I think the approach to figuring out f you have an ADA compiler bug or a port to Raspian bug is to get yourself a regular Debian setup on the Pi and try to build the same things with the same versions there. If it all goes well then you know it is an issue with the Raspian port. Of course if it fail...

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But does that easyfpgui stuff run on Raspian? That was the issue here.

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Wow, That TU100 digital life course is £2500 in Enland, or Finland where I happen to be now. Only £810 for those lucky people in Wales and such. Has anyone done this course? How was it? I was glued to the Open University broadcasts on TV in the 70s as a teenager and ever since have pondered taking a...

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One RasPi, two RasPies.

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One way to use C/C++ from node.js is to use the foreign function interface (ffi). That allows you to call functions in C existing libraries. Looks very simple to use but it did not work for me yet. It is potentially quite slow. https://github.com/rbranson/node-ffi Another way to do it is to build yo...

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I'm not following you. We can create such an app, GPIO to net, alreay in Node.js. In fact that is pretty much what I want to do, GPIO to web socket server (node.js) to browser, as a first experiment. Use google-chrome in app mode and you a have what looks like a dedicated application for managing yo...

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I think we should assume any file I/O can block. And so that gpio module is right to use callbacks. But you can access the GPIO registers directly, given enough permisions, in which case no blocking would happen and you would not need call backs. That would require a little bit of C code to do the j...

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You can set up your node.js as a web server itself. Then get your PHP on the other server to make http requests to it which carry the commands. You could set up node.js as a web socket server using the socket.io module, allowing continuous data exchange between users web page and the web socket serv...

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botdream, You have a broken link on your Raspiberrypi_GPIO page, should be: https://github.com/JamesBarwell/rpi-gpio.js Thing is the link looks right but does not work when I click on it for some reason. On the rpi-gpio page it says: All of the functions relating to the pins within this module are a...

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Thanks again for the info botdream, I had not realized that waf was out and gyp was in.

I'm going to very happy to get serial data from my attached Propeller chip served up to a browser via web sockets (socket.io). node.js makes this so easy.

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botdream, Thanks for the update. Those instructions worked like a charm. Should we be worried about all those errors in make test? That last one, where it stops, looks like a python exception in the test harness rather than a JS error but there are some of those as it runs. I had a little issue with...

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This WIFI still not reliable.

I have a test script that has been downloading a file repeatedly from the Pi over the wlan.
With HDMI unplugged things run a lot longer, 7 Hours transferring 31GB of data.
But then the wlan interface stops running.

Any suggestions are welcome.

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Just now I'm suspecting I have power supply issues as I have yanked out my HDMI cable and the wlan connection has been working hard for one hour without a hiccup. 4.5GB of data transferred.

What to do?

I am using a 1.2 amp Nokia phone charger. I'll look into getting something else to try.

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Mr.Dave and robalm,

Thanks for the suggestions. I won't be able to try them out till Monday.

However I would expect a misconfiguration to cause wireless not to work and I would not expect it to bring down my OS.

As it is the wlan did work, after a fashion, before everything died.

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