is the process of sending data one bit at a time, sequentially, over a communication channel or computer bus.

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1answer
47 views

Arduino Serial Port via Raspberry Pi SSH [on hold]

I have just bought an Arduino Uno R3 and I would like to view the Serial Monitor using my Raspberry Pi via SSH. I have looked around on forum sites but cannot seem to find the proper software or ...
1
vote
1answer
48 views

RaspberryPi to Arduino(leonardo) avoiding latency

I'm using a Python script via (TKinter)on the raspberryPi to capture mouse movement and events. My goal is to send this data, in real time, to another connected Arduino device(Leonardo). My first ...
0
votes
1answer
29 views

Need to initialize serial connection with screen

My Problem: I've got an Arduino connected to my Pi via /dev/ttyUSB0 and I always have to initialize the connection via screen, otherwise I cannot send any values via Bash or Python. What I'm doing: ...
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0answers
32 views

RPI send/receive data with serialoport node.js

I have RS232 and want to send data to Rpi with node.js serialport. I want to show data in command line but it does not display. How can I improve my code to display a data in Rpi command line? This ...
0
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1answer
20 views

No input on FTDI / Serial on raspberry

I have one of these: http://www.amazon.com/gp/product/B00FEAMUOK/ref=oh_details_o02_s00_i00?ie=UTF8&psc=1 Hooked it up as described in in the last post here: Running Headless - checking Boot ...
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0answers
53 views

Receive data from uart! Raspberry Pi mono c#

I'm new and I wanted your help please... From today, after updating libraries Mono C# on my Raspberry Pi Rev 2 Type B (wheezy), the communication via serial no longer works, it seems to me very ...
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0answers
44 views

Set default baud rate on /dev/ttyAMA0 and keep after reboot

I have a ITead Studio GPS attached to my RasPi Model B 2.0's UART serial port and it's specifications require baud rate to be set at 38400. I am using gpsd on Raspbian, which attempts to use baud ...
0
votes
3answers
169 views

How do I display an image file (PNG) in a simple window?

I've got a prototype I need to show for an RFID project. I've got the RFID (Parallax USB) working, and the sample Python script (my first) is displaying the ID of the card just like it's supposed ...
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2answers
44 views

More control of serial?

I am trying to control some really old proprietary hardware. I hooked a scope up and could determine that I need to send it essentially 21 bits in a row. It is a clock. so the fist seven are hours, ...
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0answers
41 views

Problems reading data with usb to serial adapter

I made application in Java that receives requests over HTTP and forwards them to the serial port, and back. I am using RXTX Java library and usb to serial port adapter. From my windows machine where ...
1
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1answer
143 views

Raspberry Pi and the USB to TTL Serial Cable on Mac

I've logged all my progress here Raspberry Pi and the USB to TTL Serial Cable on Mac (unfinished). screen /dev/cu.PL2303-000013FA 115200 Here's the errors that I'm getting It just hangs with a ...
0
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0answers
60 views

Making Raspberry pi talk to MyRio

I have a project where I need to use a NI MyRIO from NationalInstruments and a Raspberry Pi. I need to be able to send some data from some sensors on the RPi to MyRio and from MyRio to the RPi. The ...
0
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1answer
75 views

How to connect rs232 board to PI

How to connect this rs232 board to the PI?
2
votes
1answer
49 views

making serial connection to my electronic dictionary?

I've recently found that there's 4 terminals on my old electronic dictionary, each labeled as "/RP TXD RXD GND". The dictionary is more than 5 years old, and runs on 1xAA battery. Is there any chance ...
1
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0answers
87 views

external port forwarding to serial port

I have connected a device with the raspberry pi on serial port. I can talk to the device from within the raspberry pi (works fine). I am using a dongle to connect raspberry pi to the internet. I can ...
0
votes
1answer
229 views

Reading from serial port [loop]

I would like to read from the USB serial port from time to time in a loop. I can open the port and read data with: import serial ser = serial.Serial('/dev/ttyACM0', 9600) while 1 : ...
2
votes
0answers
189 views

How to control digital potentiometer using the SPI interface

I'm trying to control a digital potentiometer using RPi's SPI interface but for some reason it is failing, and I can't figure out why. I have successfully controled the potentiometer by manually ...
0
votes
1answer
113 views

Raspberry Pi used as a cheap serial to wlan converter

I want to use my raspberry pi as a serial to tcp converter. The raspberry pi should be a tcp-server that accept one tcp-client (because more connections would end in a complete mess in the serial ...
0
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0answers
42 views

Boot messages available over serial, however no login prompt :/

I've connected to the pi using a serial programmer for my arduino. I've connected using screen and when i boot my pi it spits out all the normal kernel boot messages. However, at the end of the ...
0
votes
1answer
65 views

Debugging problem with GPIO serial pins

I've been trying to run a port of a small RTOS called ChibiOS on my Raspberry Pi, and am having trouble with the serial communications. Specifically, when I use a UART connected at 3.3V to the GPIO ...
9
votes
1answer
418 views

What are the usage of extra available holes in model B

Despite some research on the web, I cannot find the options available from these "opportunity" holes on the Rpi. I probably do not use the proper words to identify them. What is the name for this ...
6
votes
2answers
335 views

How to install PiTFT and use to the GPIO for other usage (like serial console)

I am about to install PiTFT on a RPi model B. However, doing so, I will lose the GPIOs for other usage (like a serial cable cable, for instance). Is it possible to install a PiTFT and still have a ...
1
vote
2answers
146 views

UART/Serial communication w/ mono

I have a diplay w/ touch functionality, that communicates via either I2C, SPI or Serial (datasheet). I want to use it in a mono-application. The display has sufficient power and is connected ...
0
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0answers
69 views

Rasberry pi as wifi to serial ttl bridge

I have a Texecom intruder alarm system which comes with software that uses 5v tll for serial communications.Is there a way I can use the pi to interface the ttl com port to wifi so that the com port ...
0
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0answers
29 views

Problems using usb connection between arduino and raspberry pi [duplicate]

I have an arduino connected over usb with a raspberry. A python program ist sending a value over usb, the arduino receives it and turns the led on. The arduino is sending a analogue value from A0 to ...
1
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2answers
141 views

Serial Input for the Pi

I am trying to log slow serial data (about 40 bytes per minute at 9600 baud) on the Pi. I have a rough program using wiringSerial which only provides unbuffered serialGetchar I could write a ...
1
vote
3answers
328 views

RF transceiver and XBee module, both need UART?

I'm working an a home automation project, using a Raspberry Pi. What I want to do is connect an RF 433 MHz transmitter to control RF-controlled light switches, and a ZigBee/XBee module to connect to ...
0
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0answers
176 views

Real Time Acquiring of ECG waveform and display on a web page for Raspberry Pi

Is it possible to display ECG waveform on a web page in real time for Raspberry Pi?? If so, please tell me how?? The ECG waveform will be acquired by MSP430 and will be sent via the serial port to ...
2
votes
1answer
139 views

Possible to program an attiny2313 from gpio

I'm looking at the possibility of using an attiny2313 as a very simple controller chip, and I've used avrdude before with a parallel port to program one of these. Now I don't have a parallel port, ...
0
votes
2answers
125 views

Use RPi as a LIN Master to control slave nodes

I am trying to use the RPi as a LIN Master to communicate with a number of slave nodes on the LIN bus. I can send the correct bytes, starting with the sync byte of 0x55, and then the node ID, the ...
1
vote
2answers
465 views

Data loss (and/or corrupted) over serial USB connection to arduino

I'm trying to connect an Arduino to my RaspberryPi using USB serial cable. The goal is to be able to control a robotic arm using Firmata. I'm using node.js Johnny-Five module which allows me to ...
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vote
0answers
124 views

How do I use the serial port on one RPi to talk to the serial port on a second RPi?

I have two RPis, identical model Bs, very recent. I want to communicate between them using their GPIO serial ports, /dev/ttyAMA0. I'm using a PiCobbler to TX to RX and RX to TX. I have: disabled ...
0
votes
0answers
182 views

raspberry pi serial communication

i think i have a strange problem??? when i try to communicate to PC (i used hyper terminal via uart to USB converter and logic level converter) there is no problem in sending and receiving data but ...
2
votes
3answers
10k views

Safest way to connect Raspberry Pi to Arduino Uno R3

I am working on a robot using an Arduino Uno R3 and I wanted to have the ability of controlling the Arduino wirelessly, like stopping the Arduino without having to pull the power-plug every time. I ...
0
votes
0answers
168 views

Serial port reading, misses data

I have connected a device which sends data over a serial port, through UART and a usb connector. On my laptop running ubuntu, I have written a C++ program to read this data and store it. It sends 5 ...
1
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0answers
64 views

When connecting with GNU Screen (patched version) RPi reprompts for password in kind of loop

I have a raspberry pi (running raspian) and want to connect to it with the Console Cable. I succeeded - and I tried twice, because it had worked before, but malfunctioned the second time (this is a ...
4
votes
2answers
614 views

Connecting a Pi to a Projector via RS232

I have recently purchased a projector, and on the back, there is a Round RS232 port. After a quick google, I found this document which seems to describe a protocol that MIGHT (I'll need to do more ...
0
votes
1answer
96 views

Using pyserial to transfer data via XRF

I have a small python program that writes a 4 digit number to the serial port every second, using pyserial. I have connected an XRF module (from CISECO) to the sending pi and another XRF to another ...
0
votes
0answers
138 views

How much data throughput can I get through an ADC using SPI and python?

I would like to implement a project using a raspberry pi to do fft cross-correlation calculations in scipy from up to four different microphones using an ADC (like the MCP3208) on SPI. The functional ...
1
vote
1answer
509 views

Mono C# SPI interface

Is there any way that I can interface with an SPI pin extender from a Mono C# application running in Arch Linux on the RPi? EDIT: I want to use the hardware SPI interface like can be done with ...
3
votes
2answers
455 views

Virtual UART ports

I want to use a Rpi to interface with 3 atmega ics in an embedded system but the pi seems to only have one uart port. I know arduino can emulate a serial connection over two io pins, will this be ...
1
vote
1answer
766 views

Will this LCD touch panel work with RPi

I am come across this nice looking affordable touch screen lcd panel http://za.rs-online.com/web/p/lcd-colour-displays/7812992 and was wondering if it would be compatible with the RPi. It seems as if ...
0
votes
0answers
887 views

GSM Modem using USB to RS232 - Sending SMS doesn't work after reboot (web browser)

I'm attempting to setup a Siemens TC35i GSM Modem with my Raspberry PI using an USB to RS232 adaptor. http://www.abcproducts.com/abc-products-rs-232-usb-to-9-pin-db9-serial-adaptor-cable and create a ...
1
vote
1answer
526 views

Problems connecting over PPP with Ubuntu 13.04

I am currently attempting to set up PPP between my Pi and my Ubuntu 13.04 Toshiba Satellite A105 via the Serial Cable, as per this site: http://elinux.org/RPi_Serial_Connection. I successfully (I ...
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vote
0answers
577 views

How to establish network connection between Mac and Pi using serial cable?

I have managed to establish a connection from my Mac (OS X 10.9) to Raspberry Pi (Raspbian 3.6.11) using a serial USB to TTL cable by following these instructions. I can successfully establish a ...
1
vote
1answer
461 views

How to connect Raspberry Pi to the serial interface (TTL) of a Cubieboard?

Can I use a Raspberry Pi as an adapter for connecting to Cubieboard TTL? I don't have USB-Serial adapter but need to read it.
0
votes
1answer
788 views

using serial interface /dev/ttyAMA0 crashes Raspberry Pi

I've disabled console on the GPIO serial interface, lowered the speed to 9600 and had some communications observed with minicom and a simple cat /dev/ttyAMA0 talking to an arduino all ok. Now for ...
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vote
2answers
2k views

connecting a USB to Serial TTL PL2303HX to Raspberry Pi

I have a USB to Serial TTL PL2303HX (Prolific chipset) that I would like to connect to my Pi. My Pi model is 2011.12. The USB to Serial adapter has 5 PINs labeled as follows: 3V3 TXD RXD GND +5V ...
2
votes
1answer
2k views

cannot see RS232 serial data on Raspberry Pi

I have a Model B Raspberry Pi and an Serial Pi RS232 Interface. I am running Raspbian Wheezy on my RPi. I configured the RPi using a Serial Guide, with particular attention to the section titled ...
4
votes
3answers
1k views

Analog input to the PI

I have a bit of a specialized question for you. Recently I got my Pi up and running, and am amazed at what it can pull off. But I want more. I want to be able to record the output from an ...