Questions tagged [communication]

for questions about communication between multiple devices.

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358 views

XBee series 1 or 2? [closed]

I'm looking to buy some components to my master thesis: I have to create a sort of lab where I'll create a Zigbee network and some tasks on it. I'm wondering if I should buy XBee series 1 or 2 and ...
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0answers
32 views

Two Raspberrys on one Arduino [closed]

I have Arduino Uno with ultrasonic sensor which I want to hook up on two Raspberrys so they can both receive signal from Arduino at the same time and begin with their part of job. How can i make that ...
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2answers
137 views

Router with arduino [closed]

Is it possible to send and receive data from a normal router using arduino? I need to create a little device that uses a router to communicate with a remote. It's a close circuit.
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0answers
389 views

Communication serial port with matlab

I am trying to communicate with a serial port trought matlab. This is my code: delete (instrfindall) clear all close all clc; s=serial('COM4'); set(s,'BaudRate',4800); set(s,'DataBits',8); set(s, '...
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0answers
191 views

Receiving and transmitting messages simultaneously

tldr; I am writing a mesh network software using arduinos. I need to wirelessly receive, process, and transmit data, all simultaneously. I am aware of protothreads library, and the other software ...
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0answers
2k views

Pelco D Library for Arduino

Does anyone know of any Pelco D libraries available for Arduino? I already have a PTZ joystick controlling 3 PTZ cameras, but I would like to add an Arduino 'intelligent' controller capable of ...
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0answers
435 views

Serial Monitor Just Stops Working

I am communicating with two Arduinos with serial. The program works great for a while but then the serial monitor stops showing values in the RX code and will not work again unless the code is ...
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0answers
590 views

Arduino Uno - Firmata/Serial Communication in Visual Studio C++

I need to pass std::vector <double> values from a C++ console program (written in Visual Studio 2015) running on a PC to Arduino in real-time using USB serial communication. Can anyone of you ...
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0answers
724 views

Chat between Xbee and Arduino

I'm very new with this devices so I'm a bit confused. I've got two Xbee modules series 1 and an Arduino UNO. I want to make like a chat between the two Xbee modules, one of them connected to the PC ...
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1answer
206 views

How can I configure Arduino after programming it (for post upload wifi configuration)?

I would like to make a device that can take a photo, and send it to a website over wifi. I'm using an Arduino Uno, a ArduCam OV2640 module, and ESP8266 Serial WIFI module. Eventually I'd like to take ...
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0answers
1k views

Arduino Due and BNO055

For a physical activity monitoring project, I am developing a prototype based on an Arduino Due and several IMUs (BNO055 from Bosch). I have to collect the data from the sensors simultaneously (3 for ...
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0answers
232 views

Programming Arduino for Mindflex

I am learning brain wave programming from Tinkernut tutorial. #include <IRremote.h> #include <IRremoteInt.h> #include <Brain.h> IRsend irsend; Brain brain(Serial); const int ledPin ...
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0answers
47 views

WLAN module compatible with ArduiMU V3+

Current I use my ArduiMU V3+ with a Bluetooth Mate (from Sparkfun) but I've got a lot of connection problems with it. I'm looking for a better solution involving WLAN and am wondering whether there ...
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0answers
42 views

Connect push button to ArduiMU

I've got an ArduiMU V3+ and would like to connect an ordinary push button to it. How would I connect it to it.
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0answers
1k views

Arduino code issue (using Bluetooth and Rfid technology)

I am building a device that communicates with my Android phone. I know that my App works but my Arduino code seems to have a problem. So I have made a smaller programm and everything works fine there. ...
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0answers
140 views

I2C with an arduino, a PI and an IO expander

im working on a project which requires alo i/o pins. For that reason i bought a pcf8574P 8bit I/O expander which uses the I2C protocol. The problem is how to combine the Rasp PI and the arduino. For ...
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0answers
221 views

Arduino based temperature sensing circuit

I've currently got a setup where I am using a 2 thermocouple setup using MAX31850 and the circuit looks exactly as mentioned here using the external power option. (https://learn.adafruit.com/adafruit-...
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0answers
1k views

Reading Arduino output from serial line

I'm attempting to read data from the serial line coming from the Arduino and return it as a string. I have found/modified the following code to do so: #include <sys/types.h> #...
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0answers
870 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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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 ...
1
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1answer
190 views

Evaluating delay for Xbee

I will explain my task in a simplified way. I'm communicating among 3 Xbee's. The attached code is for the sender Xbee. This Xbee actually sends multiple values of value1 (here for simplification I ...
0
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2answers
60 views

Serial Commmunication between two arduino

I want to send the voltage magnitude received on an analog pin of atmega328Pu to another arduino uno using Serial communication pins TX and RX and display the value on the receiver arduino's Serial ...
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1answer
781 views

Why is the IDE not able to find the board despite it being clearly seen and selected?

i'm having an odd problem where despite having the correct port selected 3 times i'm still getting an error as shown below: message: Arduino: 1.8.9 (Windows 10), Board: "Adafruit Feather M0, ...
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2answers
999 views

Arduino radio communications

I have an Arduino and I am building a space satellite, just for fun. I'm not going to launch it obviously. I have built all the sensors and everything works. I was looking into communication because ...
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2answers
231 views

Shift registers. What, how and why?

I'm making a project and I'm using multiple 1 digit 7 segment displays. I haven't plugged them all on my arduino because currently I'm just testing. The problem is on the I/O ports. Obviously I need ...
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3answers
1k views

Converting Random Binary Data to PWM Signal

I am using a Arduino Due. I am doing a project on Visible Light Communication. I need to convert a binary data into a PWM Signal. Can anyone suggest me a method of generating that PWM Signal based on ...
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1answer
1k views

Connecting an Arduino Nano to a Raspberry Pi Zero

I'm working with an Arduino Nano Every, and I'm trying to connect it to the Raspberry Pi Zero for data collection from I2C sensors and writing/program code from the Pi to the Arduino. Typically, I ...
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1answer
111 views

Getting issues while using SoftwareSerial

I am trying to read string send from esp8266 esp01 to Arduino mega. When I use normal Rx and Tx ports, it works properly but when i am initializing new serial port using SoftwareSerial then nothing is ...
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1answer
1k views

Preforming impedance termination for UART Communication (TX and RX) pins

I need two Arduino devices (Arduino Mega and Nano) to communicate with each other via UART. The two Arduino devices are long distance apart from each other. The distance is 1.5 meters. The Arduino 1 ...
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2answers
210 views

Use ATtiny85 to perform initial config on a Cisco router using its USB console port

We have 200+ brand new Cisco routers that have USB console ports (but not the old RJ45 serial console ports). This is quite frustrating because the routers didn't ship with console cables and Cisco ...
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1answer
864 views

Missing character when introducing delay in the code

I am using the following code for reading any incoming message, and doing something after decoding the incoming string. There is a delay of 10sec in the code. When this delay is not introduced in the ...
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2answers
85 views

Where can I find the complete list of Arduino Serial Command & Query Strings?

I am planning to use the Arduino as a replacement for a USB-Controlled Digital I/O device, which will be integrated into an existing C++ software package that I created. I understand that the Arduino ...
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1answer
824 views

Arduinos using I2C reading integers wrong

I have two Arduino unos, and I am using I2C to have them communicate with each other. The A4, A5, and GND of each Arduino is connected to the other. These are my functions: On the sending Arduino: ...
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2answers
65 views

Will the Arduino's low clock speed limit wireless transmission frequencies that are higher than the clock speed of the Arduino?

I've recently used 2.4GHz and 433MHz wireless communication modules, and I was wondering if the Arduino can only process at 16MHz(Arduino UNO's clock speed), then won't the communication modules also ...
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2answers
3k views

Multichannel communication with Arduino and HC-12 transmitter

The HC-12 module has 100 possible channels starting at 433 MHz. Can someone tell me how to program the Arduino to use multiple channels at the same time? My goal is to build an RC transmitter with ...
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2answers
6k views

Sending data from txt file over serial connection

I'm trying to send data saved on a txt file to arduino over serial connection. I wrote this simple sketch void setup(){ Serial.begin(9600); } void loop(){ while (Serial.available() > 0) { ...
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3answers
517 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 ...
0
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1answer
866 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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1answer
32 views

SIM7000E Waveshare can't do anything

Can someone help me? I'm using a sim7000e from Waveshare. One week ago it was working normally, but now it doesn't work at all; it even can't read the RX-TX communication. #include <SoftwareSerial....
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2answers
142 views

Communication between 2 arduino boards

I am not really 100% too sure how to do this but I am trying to make my arduino UNO communicate with my arduino MEGA. The reason why I needed to do this was because I was using the RFID module along ...
0
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1answer
87 views

Master Reader/Slave Sender with Distance Sensor

I am currently working on a project and want to transmit the information from a distance sensor from one arduino the another, but what i receive in the master board are not the correct measurements. ...
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1answer
104 views

How can I display text on OLED?

I'm trying to print the information, which is received from the other ESP32 by CAN transceiver, on an OLED. The CAN bus is working perfectly, as the 'HELLO WORLD' is already be received. But I can't ...
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2answers
168 views

Can I send data from one MKR1000 to another MKR1000

I want to simply send data from one MKR1000 to the other over wifi, both are connected to the same network, but sending the data is where I get stuck, I've looked through tuts everywhere but can't ...
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2answers
832 views

How to automatically reset the NRF24L01 module

For my home-automation project I'm using several arduino nano's with each a NRF24L01+ module. Each module is able to both receive and transmit with one another. Everything seemed to be flawless for a ...
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2answers
118 views

One Arduino collects data, several other Arduinos use the data. What is a simple way to do this?

I am looking for a way to exchange a few bytes of data from one Arduino to two or more additional Arduinos. It's a one way communication and speed is not a problem. 10Hz is fast enough. Data ...
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2answers
322 views

What could cause data to be printed correctly, then incorrectly and then repeated? CAN bus / general transmission

I am attempting to send data from an MPU6050 connected to an arduino uno to another uno via CAN bus, however i don't think this is a CAN bus specific issue. In short, i am sending two packets of 8 ...
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2answers
343 views

Serial Communication between 2 Arduinos for analogRead value

I have an optical sensor connected to A0 on Arduino #1 (Nano) giving me values from 200 to 1010. I need to receive these values in Arduino #2 (Nano) through serial communication. I have used a simple ...
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1answer
325 views

Unable to receive data when using multiple SoftSerial on Arduino Nano

I am trying to use several (four) software-based serial ports to talk to different peripheral hardware. However, I am unable to receive data through the SoftSerial when using more than one software ...
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3answers
3k views

How to automatically reset the nrf24l01+ with code?

I have two separate nrf24l01+ connected to two different Arduino UNOs, one as TX and the other as RX. The problem is the connection stops after a while between them. On the Arduino COM screen I have ...
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1answer
33 views

How to properly link an Arduino and its sensors [closed]

To finalize a prototype, I would like to have a proper structure containing the arduino (uno here), its shields and its sensors. I would like the sensors to be soldered to the arduino+shields block, ...

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