Questions tagged [communication]
for questions about communication between multiple devices.
402
questions
1
vote
1answer
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 ...
1
vote
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 ...
1
vote
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.
1
vote
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, '...
1
vote
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 ...
1
vote
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 ...
1
vote
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 ...
1
vote
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 ...
1
vote
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 ...
1
vote
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 ...
1
vote
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 ...
1
vote
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 ...
1
vote
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 ...
1
vote
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.
1
vote
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.
...
1
vote
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 ...
1
vote
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-...
1
vote
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>
#...
1
vote
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....
1
vote
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
vote
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
votes
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 ...
0
votes
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, ...
0
votes
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 ...
0
votes
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 ...
0
votes
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 ...
0
votes
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 ...
0
votes
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 ...
0
votes
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 ...
0
votes
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 ...
0
votes
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 ...
0
votes
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 ...
0
votes
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:
...
0
votes
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 ...
0
votes
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 ...
0
votes
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) {
...
0
votes
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
votes
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 ...
0
votes
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....
0
votes
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
votes
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.
...
0
votes
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 ...
0
votes
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 ...
0
votes
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 ...
0
votes
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 ...
0
votes
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 ...
0
votes
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 ...
0
votes
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 ...
0
votes
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 ...
0
votes
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, ...
