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

learn more… | top users | synonyms

0
votes
1answer
11 views

Where can I find a USB serial driver for Snow Leopard?

A while ago I followed this Adafruit tutorial on how to set up a serial connection with the Console Cable. Now I need to reinstall the driver (because I reinstalled Snow Leopard on my computer, erased ...
0
votes
0answers
16 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
33 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
384 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 ...
5
votes
2answers
92 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 ...
0
votes
2answers
37 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
votes
0answers
32 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
votes
0answers
28 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
vote
2answers
77 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
201 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
votes
0answers
110 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 ...
1
vote
1answer
71 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
0answers
54 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
207 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 ...
1
vote
0answers
97 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
142 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
5k 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
152 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
vote
0answers
49 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
356 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
82 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
108 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
361 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
340 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 ...
0
votes
1answer
669 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
794 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 ...
0
votes
1answer
408 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 ...
1
vote
0answers
543 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
403 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
593 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 ...
1
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 ...
0
votes
1answer
226 views

Disable DTR on ttyUSB0

I'm connecting from Pi to Arduino-clone board. The problem is, that I need to disable DTR line, in order to prevent Arduino from reseting on connect. I have read that on RPi is not possible to ...
1
vote
1answer
530 views

How do I program a serial EEPROM IC using a raspberry Pi?

I am trying to program the 25L12835F Serial EEPROM with the firmware of the Pineapple WiFi router. I have the u-boot.bin file from Alfa. I have tried a programmer from eBay, but the software is unable ...
1
vote
1answer
500 views

Raspberry Pi/“Arduino” communication

I'm looking to use a raspberry pi to speak to multiple "arduino" ATMEGA328p ICs (through a logic-level converter). I figure I can do this reasonably well over the GPIO RX/TX and use qualifiers to let ...
3
votes
1answer
256 views

Minicom missing 0x00 output from Xbee

I connected my Raspberry Pi to an Xbee module and used minicom to read data from it. All the data is read out fine except that it missing 0x00 strings. For example, if Xbee sends out data in HEX ...
2
votes
1answer
753 views

Can a Raspberry Pi be operated at more than 115200 baud rate i.e : 230400

I am now working on a project where I have to integrate a wireless module which supports baud rate of 230400 to Rasp Pi. I came to know that baud rate can be tweaked in Raspberry Pi. Is there any ...
1
vote
1answer
764 views

How to read values with pyserial?

I'm using a CMUCam4 connected to the usb port. So far I've tried this: import serial cam = serial.Serial("/dev/ttyUSB0",19200) cam.write("GV \r") #call get version result = cam.readline() The ...
1
vote
2answers
267 views

Reading values from XBee Pro S1 via Putty

Presently I was working on serial communication between Raspberry Pi and PC via XBee Pros. I was able to send serial data correctly from Raspberry Pi. I confirmed this by minicom program minicom -b ...
1
vote
0answers
98 views

Can I use the TX pin as a normal GPIO output alongside serial communications on the UART?

I'm using the raspberry pi's UART to interface with a third-party radio. At startup, the radio reads its RX pin (the pi's TX pin) to determine which baud rate should be used. I'm using Gordon's ...
1
vote
1answer
924 views

Problem with UART

I've a Raspberry Pi Model B. I want to connect its serial output to my PC and view the logs generated by it. My serial to USB converter board uses FTDI FT232RL and supports both 3.3V and 5V (using a ...
4
votes
1answer
216 views

PIC32 connected via USB-Serial to Raspberry Pi

Has anyone managed to get the PIC32MX695F512L microcontroller to connect via USB to the Raspberry Pi? The PIC32 doesn't show up in lsusb or dmesg, however it will happily connect to my laptop with ...
0
votes
1answer
562 views

Using a Console Cable, Error “Could not find PTY”, MAC

I'm trying to follow AdaFriuts tutorial on using a Pi over a serial cable on my Mac, link bellow, and I'm stuck with an error that reads "Could not find PTY" despite having all the right GPIO ...
2
votes
1answer
283 views

Other hardware for camera slots?

I think the raspberry should get more cool hardware like the camera that works with the slot onboard. I'd love to get a fast RS485 onto this slot because i need all my GPIOs for LEDs. Currently I use ...
1
vote
1answer
506 views

How can I ensure all data sent from an Arduino is received by a Raspberry Pi?

I am using an Arduino Uno to sample a signal. I then want to send those samples in a block to the Raspberry Pi. At the moment I am simply using (on the Arduino side) Within loop Serial.write(value) ...
1
vote
1answer
1k views

Pi + Parallax RFID reader + Python only reading one tag

Here are the three components that I have, in addition to Pi rev. A. Parallax RFID Reader: ...
0
votes
0answers
224 views

Mono C# TCP Socket Server Blocking UART Serial Port

I wanna get commands with clients (other devices like android devices) and control microcontroller with UART serial port. I wrote async TCP Socket server with mono C#. Like [this]. ...
2
votes
1answer
1k views

How to configure serial port settings of /dev/ttyAMA0?

I want to access the serial port by some BASH script files via /dev/ttyAMA0. How do I configure the serial port settings like speed, parity even/odd?
2
votes
0answers
630 views

How to use socat to transfer serial commands in a script over TCP/IP?

I have a web application that will constantly post some queries and get replies from a device through the serial port on Raspberry Pi. Like this: @cherrypy.expose def login (self, **data): ...