Questions tagged [communication]

for questions about communication between multiple devices.

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3answers
521 views

Arduino/C++ byte manipulation

Consider this scenario, I have a single byte of data; I have to use the 8 bits it is composed of to generate 4 extra bits from it. Now, my problem is that I have to store this data somewhere while I ...
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1answer
2k views

Can you connect an output pin from one Arduino to the input pin of another?

I have a system that uses two Arduino boards. One is used to control several different functions, and the other is dedicated to driving a 45 second countdown display (comprised of two large 7 segment ...
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6answers
23k views

Two Arduinos Send data via Analog Pin?

What I want to do is allow Arduino A to send some constant value to Arduino B. I sense something inherently wrong with my approach, but I cant figure out what it is. So in the diagram below you will ...
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2answers
1k views

Arduino Leonardo on Win 8.1 COM port disappeared

I've been using an Arduino Leonardo on my Windows machine for a few days now without too much trouble but today the COM port disappeared. I've been able to successfully send sketches to the arduino ...
0
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1answer
862 views

collecting & visualizing sensor data - best approach?

I'm working on a kite-related project where I'm using Arduino + accelerometer to track data while a kite is in the air. I am struggling a little with the best approach - help on the following ...
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1answer
190 views

About arduino serial communication

I've used the arduino uno with the python serial library months ago and some packets got lost in the way. I've been searching about serial communication for arduino and I've been thinking that I could ...
2
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1answer
2k views

control a jack/cylinder to open/close a window

I want to open the window to let the cat enter or go out, but the mecanism of the window may me think that the best way should be to use a jack/cylinder (I don't know what term is more appropriate in ...
1
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1answer
44 views

Checking connection/ communication

Can I ping or “hello world” an Arduino. Background: My son and I bought a 3-D printer kit. (EZ-3D) We are having some issues talking with it. (Well we can't talk at all.) So we thought to upload ...
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0answers
872 views

nRF905 communication with PC

I want to transmit data to my laptop from arduino with nrf905. I found examples with communicating two nrf905 devices but not an arduino and a PC. By the way, the tutorial is here; http://www....
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2answers
984 views

Arduino to Arduino Communication using HC05

I have been working on a project for work ( I'm a waiter :/ ) I was tasked to build a food wait time display that receives input from the kitchen and echoes the time via bluetooth to another display. ...
1
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0answers
176 views

Live video cam on arduino [closed]

I'm doing a project where i need a live video capture, not taking pictures. Is it possible on arduino? With this cam ? I want to send the stream to my PC over ethernet. Is it possible? Will it work? I ...
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2answers
3k views

How to connect Arduino Pro Mini with PC?

I'm about to buy Arduino Pro Mini (http://arduino.cc/en/Main/ArduinoBoardProMini). As far as I can see it requires FTDI or similar circuit to program it. Should FTDI be present for communication with ...
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1answer
876 views

Wireless Sensor (IMU) to Arduino

I was doing some research about this subject and I only have more questions than answers. I want a little IMU sensor (I don't know which hardware I should get) that sends data wirelessly to my ...

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