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Questions tagged [arduino]

Arduino is an open-source electronics prototyping platform based on easy-to-use hardware and software. It's intended for anyone making interactive projects. Questions about programming on an Arduino are off topic and should be asked on http://stackoverflow.com.

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14 views

Lowering esp's baud-rate [on hold]

I Want to lower my esp's baudrate for SerialSoftware but i keep getting "ERROR" responses to commands below AT+CIOBAUD=9600, AT+UART_DEF=9600,8,1,0,3 I Tried AT and couple other commands they seems ...
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0answers
13 views

One Arduino board no longer recognized, but others are

Hio I've been playing around with an Adafruit Neotrellis M4 but Arduino IDE is no longer recognizing it as connected. I've tried using the reset button but it doesn't seem to be doing anything. The ...
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0answers
5 views

TMK Keyboard Media Keys

I am struggling to send Windows Media keys using TMK Keyboard code. I am referring to Host.h but can't seem to get the codes sent via "host_consumer_send" function. I suspect I need to be setting the ...
0
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0answers
17 views

App inventor bluetooth connection with arduino [on hold]

I'm having some trouble with the connection between an HC-05/Arduino to an app I created in MIT App inventor. I have been following various tutorials just trying to pass data back when a box is ...
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1answer
44 views

MQTT large delay between messages

I have a testing configuration which consists of a raspberry pi 3 b+ has a mqtt server, an esp32 with some led´s and a webpage to toogle them (webpage and esp32 are clients). For the esp32 i am using ...
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0answers
5 views

while uploading Esp-01 code in arduino i get this error how to resolve this? [migrated]

trying to connect flush start setting serial port timeouts to 1 ms setting serial port timeouts to 1000 ms flush complete espcomm_send_command: sending command header ...
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0answers
5 views

RN4678 Bluetooth doesn't respond [migrated]

I am facing very basic level issue with RN4678. I purchased a module from https://www.mikroe.com/rn4678-click I want to simply communicate with it through serial port. To do that I connected it to ...
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0answers
11 views

SoftwareSerial receives wrong characters

I have a problem with my Serial Communication Setup. I have an ESP8266 (from now on ESP) connected to an Arduino UNO (from now on UNO) with Serial. I've connected the serial port of the ESP, to pin 5 ...
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0answers
4 views

USB Communication between Arduino Nano and UHF Reader module [migrated]

I am working on a project that requires a UHF reader development kit that can communicate using either RS232 or by USB. Via USB and a Serial terminal, I have been able to send commands to the reader ...
-1
votes
1answer
20 views

Arduino with HM-10 doesn't always receive the complete message that was sent [closed]

I am a beginner trying to communicate between an iPhone and an Arduino Uno. I have an HM-10 BLE module device wired to my Arduino. I use it to send and receive messages from my iPhone. My Arduino runs ...
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0answers
13 views

Arduino IDE path for VS Code setup

Arduino IDE installed as an App (in Windows 10), so this path ("arduino.path": "C:\Program Files (x86)\Arduino",) doesn't exist, what is the correct one?
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1answer
34 views

Send Wake on Lan (WoL) request manually through the ethernet cable using an Arduino or Raspberry Pi

I'm trying to make a circuit that "intercepts" the ethernet cable before it enters the computer, allowing me to send a "Magic Packet" through the cable manually - by the press of a button for example. ...
1
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0answers
22 views

Serial communication doesn't work RPI--ARDUINO uart [closed]

i want to use serial communication to send data from an arduino nano to a raspberry zero w. I used this method of connecting the pi to the arduino I used this code import serial port = serial....
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0answers
25 views

Wake computer via Wake On Lan using Arduino/Raspberry Pi

Is it possible to use Wake On Lan (WOL) without going through the router? Using an Arduino or Raspberry Pi connected to the internet to manually (through the ethernet port) tell the computer to wake ...
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0answers
74 views

MacOS connecting to bluetooth module

I have lots of issues connecting Mac OS Mojave to my sparksfun Bluetooth module RN-42. I can pair my Bluetooth module to my Mac, but after several seconds, the connection goes away. However, for the ...
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0answers
17 views

Convert HEX code to text when using the arduino with radio transmission/reception [closed]

I am using Arduino Uno with a cheap radio transmitter and receiver. One of the example sketches obtained from the Web transmits the word "hello" and this is received and displayed on the serial ...
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0answers
39 views

Fake usb to emulate (be detected as) a cd / dvd disk

since Windows 7 it isn't possible anymore to create a autorun.inf file to run a program automatically from an usb: [Autorun] Open=ArduinoLync.exe Icon=ArduinoLync.exe, 0 Label=ArduinoLync But this ...
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1answer
21 views

Raspberry install Application on Windows PC at boot [closed]

I am not sure if this es even possible or if I just was searching for the wrong term. The Goal is that a Raspberry (or Arduino) controls some LEDs. Which of the LEDs is turned on will be sent by a C#...
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0answers
154 views

OpenVPN client to client with a Raspberry PI 2 client and Arduino Nano + esp8266

I am trying to setup a weather station with an Arduino Nano + esp8266 which hosts a simple HTML page. Also, I use my Pi 2 as an OpenVPN Client and I want every remote OpenVPN clients to have access to ...
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0answers
35 views

Write API in MATLAB

Write API in MATLAB I want to take reading from my Arduino (which I am already doing through MATLAB), and create an API of my readings. This is so I can make an app with Xcode in Swift that can ...
1
vote
1answer
178 views

Could overvolting the USB port on a laptop cause battery drain issues?

So yesterday I was working on a project with an Arduino Mega. The Arduino was being powered with a 9V battery plugged into the 5v and GND pins on the board. I needed to make some changes to the code, ...
3
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0answers
64 views

Create WiFi Network (WITHOUT TETHERING) using ESP8266 CP2102 Arduino? [closed]

Hi no idea if this is possible, but thought I would as some of you smart folk. So I have a holiday home WITHOUT WiFi, but I have a phone with unlimited 3G/4G connection and an Arduino WiFi module ...
0
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1answer
62 views

DHCP fixed client not working

I have been trying to set a static IP address through a router to an Arduino that uses DCHP connection, the thing is that I have tried this in multiple routers but it keeps changing the IP address ...
0
votes
1answer
56 views

Arduino IDE changes Com Port from 3 to 5 - why?

Have Arduino IDE 1.8.1 set up on Com Port 3. Works fine with Adafruit Uno board. Plug in another Adafruit Uno Arduino board, that does not work properly, and IDE changes Com Port 3 to Com Port 5. Why,...
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1answer
81 views

How to build Protobuf on Arduino target using Eclipse?

I am using SAM Board 32 bit ARM Cortex M3 platform in eclipse. I am follwing the protobuf example given on google protobuf website. I created the Arduino project and added the Addressbook.pb.cc, ...
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0answers
43 views

Converting an IR remote to use wifi

I bought a Sony Android TV recently, and am not very satisfied with the remote. IR being IR, there are delays between a button-press and the relevant action on the screen. On the other hand, the ...
0
votes
1answer
55 views

How do I have to send this HTTP request?

I'm trying to read some information from a Website (http://www.ths-pinneberg.de/vplan/index.php?klasse=Q1c). You will need a Password. I have the Password saved on my computer but my Arduino not. My ...
2
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0answers
2k views

avrdude: /dev/ttyACM0 issue with changing permissions

I was using Arduino IDE on my Arch Linux laptop without problems, after some time /months I'm not able to upload the sketch because of permissions: avrdude: ser_open(): can't open device "/dev/...
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2answers
2k views

Why do you have to use a voltage divider with HC-05 bluetooth module? (Arduino) [closed]

I am trying to connect my bluetooth module to my Arduino but it takes 3.3 volts (the bluetooth module HC-05, The Arduino mega takes 5v) and the tutorials online say to connect the RX pin to the Ground ...
2
votes
0answers
44 views

Arduino IDE app menus are gibberish

The menus of the Arduino IDE are full of gibberish on this system. This only affects the menus at the top and all context menus. When I manage to weasel my way through and open, for example, the ...
0
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1answer
396 views

Are amoled High Resolution displays compatible with arduino?

I was wondering if I can hook up a high resolution amoled display such as this one to an arduino microcontroller?
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0answers
28 views

Connecting a Sparkfun ESP32 Thing to Wifi over Bluetooth [duplicate]

I want to build an app that connects to my Sparkfun Thing over bluetooth. I then want to connect the Thing to Wifi over this bluetooth connection. Is this possible?
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1answer
83 views

Does a USB password key push the password?

I recently asked a question Can applications push themselves in Windows? where an appealing answer wrote that Pushing it simply creates an electrical connection. There is no program stored in ...
1
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2answers
2k views

Can my laptop USB port be damaged by 12.5 Volts?

I connected an Arduino to my laptop with the USB cable. An arduino is something like a Raspberry Pi, but then simpler. You can program it to run a robot for example. There was a big mistake in the ...
0
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1answer
766 views

libjli.so “No such file or directory” while trying to run Arduno IDE

I downloaded Arduino IDE and extracted it. When trying to run it: ./arduino It throws up an error: /opt/arduino-1.6.9/java/bin/java: error while loading shared libraries: libjli.so: cannot open ...
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1answer
88 views

YR8001 RFID reader

I am doing a project on passive RFID system using YR8001 RFID reader. I am beginner and don't know much about it. After reading various articles and blogs I got to know that most readers allow the ...
0
votes
1answer
443 views

Serial Port not found by MATLAB to communicate with Arduino

I'm just trying to know how to established serial communication between Arduino and MATLAB. From this tutorial I copied the code, but as for my PC use "Windows" I had to change my serial port name. ...
1
vote
1answer
186 views

Most universal sequence of keyboard presses to start an editor [closed]

I have a very compact Arduino with integrated USB connector, the CJMCU Beetle that can emulate a virtual USB keyboard. I would like to configure it to send keystrokes to any computer it is connected ...
2
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1answer
849 views

How do I reset corrupted pcDuino to its initial state?

I updated Lubuntu 12.04 in pcDuino v1, but it was my mistake, since it is not capable of running versions beyond 12.04. After that it crashed and I restarted pcDuino and it stopped here showing the ...
-1
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1answer
192 views

Device discovery and Distance measurement

The goal of my project is to discover devices with Wi-Fi or Bluetooth turned on (not connedcted anywhere) and measure the distance between those devices and my search devices. The search devices will ...
1
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0answers
90 views

How to read contents of ATSAM3X8E chip on Arduino Due Board in Mac OS X

I have two Arduino Due boards with some programming that has since been lost. I need to back up the contents before replacing the program. I’ve been playing around with another Arduino Due before I ...
1
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0answers
121 views

Uploading Arduino firmware automatically

I am on Windows 8.1. I have an Arduino Uno kit, that I program with the help of Arduino IDE. The IDE allows me to edit my files, compile them and burn them into the Arduino memory. However, I have ...
0
votes
1answer
468 views

arduino on windows 8 stuck open but can't find in task manager

I deleted a folder from within the arduino 'open folder' function in their program, and the mouseover window got stuck on my screen. So I tried taskkill /f /im dwm.exe and it worked to reset the ...
1
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0answers
709 views

How can I allow Windows RDP ports with socat?

192.168.0.21 is a Windows 8.1 PC running RDP. Using Linux I am running socat as below, but cannot connect on port 5900 to 3389. How do I make TCP and UDP traffic on 5900 go to 3389? socat TCP-LISTEN:...
0
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1answer
727 views

Is an Arduino microcontroller capable of detecting its own pins that are connected with each other?

I have a matrix and I want to connect it directly to Arduino without using IC. I want that whenever I connect two pins in Arduino microcontroller, example: pin1 and pin2, the microcontroller will ...
1
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1answer
996 views

Recover LOST password on Intel Edison

I've previously installed Yocto Linux Image on my edison and configured with login and pw. I have misplaced the pw, hwoever all the instructions I've read for re flashing the device require a login ...
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0answers
1k views

Arduino IDE won't launch in Windows 8.1

What I've tried 1 Installing Java SDK and runtime (JDK8 but when extracted it says jdk1.8.0_25) 2 add the %JAVA_HOME%\bin to Path environment variable 3 JAVA_HOME environment variable pointing to ...
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0answers
297 views

How do I go about geting synergy 100% operational with error in build process

During the install process I get the following snippet of an error When I get to the part about cryptopp: Scanning dependencies of target cryptopp [ 19%] Building CXX object ext/CMakeFiles/...
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2answers
3k views

Echo/Pipe command output to Serial line

I have a serial device running on 115200 baud at /dev/ttyUSB0. I need to Pipe the output of a command to it. I Need somthing like: command-that-gives-stdout | command-that-puts-stdin-to-serial --baud ...
0
votes
2answers
366 views

My Intel Edison project [closed]

I have recently bought an Intel Edison with the Arduino compatible breakout board. I am planning to use this for an universal translator project. Something like this: http://makezine.com/projects/...