Raspberry Pi Stack Exchange
Raspberry Pi Stack Exchange

Questions tagged [communication]

Regarding communication between a Raspberry Pi and another device. Communication that is not specific to any particular medium.

For questions regarding communications in general between a Raspberry Pi and an external system or peripheral.

If your question is related to a particular communications medium or channel please use the tag or tags appropriate to that medium instead.
For example: , , or another relevant tag.

152 questions
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4 answers

How do I connect my raspberry pi to a landline phone to process calls?

I am working on a project and would like to connect an old fashioned landline phone to a raspberry pi. I then want to be able to dial some number on the phone and then have the raspberry pi play a prerecorded audio file based on the number dialed. I…
cwiegand
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7
votes
6 answers

Direct two-way communication between a PC Application and a Pi Application

I work for a medical company and we produce systems which typically are composed by a data-acquisition device connected via USB to a PC where some desktop application runs so that it can control the hardware and display the connected data in…
heltonbiker
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7
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3 answers

How to communicate between Raspberry Pis using WiFi?

How do I communicate between 2 Raspberry Pis with WiFi dongles? I have connected the 2 WiFi dongles to the router but I do not know the next step of how to get them to communicate. For in this case I'm using the network for 2 micro mouse to…
Vanessa Carlington
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6
votes
2 answers

Sending Commands from PC to Raspberry Pi via USB

I am currently doing a project with the Raspberry Pi as a controller connected to a PC via USB and using the Pi to send commands to other devices connected via GPIO pins. Simplified version: communication from PC to Pi to rest of system. I'm…
intensified
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6
votes
1 answer

Pi to Pi Communication over GPIO / USB

I have a Pi Zero that I would like to use to communicate with a B+. In theory I can connect an adaptor cable and a WiFi or Ethernet USB dongle to the Zero, and do the same on the B+. However, as an alternative, it is theoretically be possible to…
xirt
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6
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1 answer

Raspberry Pi as slave

I am using a Pi compute module and wish to make two of them to communicate to each other. I have hooked up some slave I2C devices to it (RTC, Temperature sensor). So I don't think making Pi as slave using on-board I2C is an option And I read…
Dennis
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5
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1 answer

Simple Custom 1-Wire GPIO Communication Protocol between Master PI and Slave PI

I have 2 Raspberry Pis in my system. One can be 'docked' to the other one and some time later it can become 'undocked'. While docked, the 2 Pis will have a connection between 2 GPIO pins ( 1 pin on each Pi ). So there will be 1 wire that connects…
PhilBot
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5
votes
2 answers

Cheap COTS transceivers that work with Raspberry Pi?

I'm looking for a way to get an app running on a laptop to communicate with an app running on a Raspberry Pi. This is a home/hobby project, so looking for inexpensive COTS hardware and open source software (drivers, etc.) every step of the…
zharvey
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4
votes
2 answers

How to send and read a string from Raspberry pi to Arduino via serial interface?

I was trying to send and receive data between Raspberry pi and Arduino UNO. I'm able to send and receive a string from Arduino to Pi using Serial.println. I spent hours searching a better tutorial or a solution. Couldn't find any. The code below…
smc
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4
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2 answers

What should I use for wireless communication between an Arduino and a Raspberry Pi

I have several devices like sensor, motor, etc which are connected to the Arduino. I want to transfer my sensor data from the Arduino to the Raspberry Pi wirelessly. Also, all the data from different sensors connected to the Arduino should be…
VINOD SUKHADEVE
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4
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2 answers

Verified 4G USB dongles

Is it possible that there are no verified 4G USB dongles for RPI, or the following link is out of date? If so, why is it? If not, where are they listed?
Yigal
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3
votes
0 answers

Raspberry Pi and LIN Bus

I want to implement a LIN Bus using a Raspberry Pi 3. The RPi will be the master controlling slaves on the LIN Bus. My idea is to use the Raspberry Pi UART, but I am not sure to what extent this idea could work since RPI UART works with bytes and…
A.Chaalane
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3
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1 answer

Set custom mouse button actions

How would I set custom mouse button actions on my Raspberry Pi? Here's the idea: I have a Pi with speakers with a mouse dongle connected. I want to dismantle a wireless mouse and use the already existing buttons (including right, left, DPI, etc)...…
StealthVice7
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3
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0 answers

Networking - Two Raspberry Pis communicating over wired connection

As a part of my research I need to have two Raspberry Pis and a Pixhawk all within the body of a UAV. I know I can get one Pi connected to the Pixhawk over mavlink, but how can I get the two Pis talking to each other. The three devices will all be…
Rob Thomas
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3
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1 answer

Connecting Pi to laptop (macbook)

Brief Question: I am working on a project that requires me to execute a C++ program on my laptop, and, the result of the program will determine the actions of the Raspberry Pi, which is triggered using some Python code. But, I need a way to connect…
Phorce
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