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by barbeker
Wed May 04, 2016 8:33 pm
Forum: Troubleshooting
Topic: DHCP - no internet connection
Replies: 2
Views: 630

DHCP - no internet connection

I log in to the Pie using SSL (ethernet cable to my laptop) but can't seem to get in internet connection. route -n Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface 0.0.0.0 0.0.0.0 255.255.255.255 UH 202 0 0 eth0 0.0.0.0 0.0.0.0 0.0.0.0 U 0 0 0 eth0 0.0.0.0 0.0.0.0 0.0.0...
by barbeker
Tue May 03, 2016 8:53 am
Forum: Beginners
Topic: Playing defected video files
Replies: 2
Views: 495

Playing defected video files

Hi. i've built an Optical wireless comuincation system using LEDs and a Photodiode which suppose to transmmit video files. so far i've managed to transsmit text files and small images at a rate of 1Mbps and 230kbps for a range of 5 meters(using the mini uart module). now, when i'm trying to send a v...
by barbeker
Mon Mar 14, 2016 10:21 am
Forum: Beginners
Topic: how to score higher baude rate with serial RPI2RPI
Replies: 4
Views: 695

Re: how to score higher baude rate with serial RPI2RPI

RaTTuS wrote:viewtopic.php?f=44&t=51633

though for high speed use the Ethernet
thank you for your replay i did reat that post but the thing is i need the RPIS to stand alone without any network involved
by barbeker
Mon Mar 14, 2016 9:29 am
Forum: Beginners
Topic: how to score higher baude rate with serial RPI2RPI
Replies: 4
Views: 695

how to score higher baude rate with serial RPI2RPI

I'm rather new to RPI and python and I could really use your help, so thanks in advance. So my project main goal is to transmit data (a jpeg file for instance) from one RPI 2 to another one asynchronously. Currently I'm using the UART pins and a simple python program, which its main modulus are: #in...
by barbeker
Tue Dec 29, 2015 12:56 pm
Forum: Beginners
Topic: convert a pic to bit stream and write it to gpio
Replies: 6
Views: 1035

Re: convert a pic to bit stream and write it to gpio

ghans wrote:Have a look into lrzsz :

Code: Select all

sudo apt-get install lrzsz
man sz

ghans

i will thanks. on the mean time any idea on how to write data to gpio in c?
by barbeker
Tue Dec 29, 2015 11:07 am
Forum: Beginners
Topic: convert a pic to bit stream and write it to gpio
Replies: 6
Views: 1035

Re: convert a pic to bit stream and write it to gpio

first of all, thank you very much.

acording to http://hackaday.com/2015/03/27/the-pi-2 ... ster-gpio/ toggling between zero and one could go up to 42MHZ using C and up to 70KHz using python. i need to get a transsmition rate larger then 1 Mbps, so using python isn't really un option.
by barbeker
Tue Dec 29, 2015 7:18 am
Forum: Beginners
Topic: convert a pic to bit stream and write it to gpio
Replies: 6
Views: 1035

convert a pic to bit stream and write it to gpio

hi guys, i'm new to RPI and i would appropriate it if you could help me to get started. i need to build a serial communication system, and the first stage is to be able to take a file (lets say a jpg pic) convert it into a stream of bits and write it to a gpio pin. since speed is a crucial requireme...
by barbeker
Sat Sep 19, 2015 12:49 pm
Forum: Beginners
Topic: Full HD streamer for a communication transmitter
Replies: 4
Views: 665

Re: Full HD streamer for a communication transmitter

i want to connect the Pi to a camera on one side and be able to transmit the data to another device which has a serial input. i tought i would use a USB-UART converter in order to support high data rates.
by barbeker
Sat Sep 19, 2015 8:11 am
Forum: Beginners
Topic: Full HD streamer for a communication transmitter
Replies: 4
Views: 665

Full HD streamer for a communication transmitter

as a part of a project i need to use the RPI as a full HD video streamer, which will be conected to a video camrea on one side and push the video throuh the USB port on the otherside at a rate of 4-10 Mbps (the format could could be anything at all). is it even possiable? if so any idea on how to st...
by barbeker
Mon Sep 14, 2015 3:45 pm
Forum: Beginners
Topic: handling a 10Mbps as a part of a communication system
Replies: 6
Views: 990

Re: handling a 10Mbps as a part of a communication system

Where is the data coming from? And what format is it?
the system is just a prototype so for now it could be anything stored on the Pi's memory. The format of encoding the data doesn't really matter , I just need to turn on and off a led at a 10 Mbps rate in correlation with the binary data.
by barbeker
Sun Sep 13, 2015 4:30 pm
Forum: Beginners
Topic: handling a 10Mbps as a part of a communication system
Replies: 6
Views: 990

Re: handling a 10Mbps as a part of a communication system

first of all thank you for your help. second, please forgive my english. I guess I need to be more specific. I'm a spouse to build a LED based communication system, and I need the raspberry pie to be able to transmit a data stream to a LED driver which receives either high voltage level (represents ...
by barbeker
Sun Sep 13, 2015 10:27 am
Forum: Beginners
Topic: handling a 10Mbps as a part of a communication system
Replies: 6
Views: 990

handling a 10Mbps as a part of a communication system

as a part of a progect, I need to build a communication system capable of handling a 10M bit per seconed data rate. is it posible to use the Raspberry pi to send and recive a stream of bit at that rate (and maybe even crate that stream)

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