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Questions tagged [usb]

Widely used standard for connecting computers to other devices, such as printers and keyboards.

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2answers
291 views

Why is Serial.print working when nobody receives the data?

I have a kind of theoretical question. Let's have an Arduino Uno connected through USB that does a lot of Serial.print-ing. Then I disconnect it and I don't see anything on the Serial monitor, but the ...
1
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0answers
322 views

Which components to built remapping keyboard via USB in + out (remapped)

I know that it's fairly easy to change the emulate keyboard and mouse by Arduino. But I'm quite specific about the goal I would like to achieve hence I would appreciate if you could advise me which ...
4
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2answers
2k views

What's the smallest (cheap) USB Host solution for Arduino?

I'm building a project that will connect to users' phones (Android at first, but iPhone too, if there's enough interest) via USB. Of course, this means that I need a USB host in the project. The total ...
2
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1answer
638 views

Unable to upload sketch after bootloader has been flashed on Arduino Micro

I have created my own custom Arduino Micro, but I am experiencing problems when I attempt to upload an sketch via USB in Arduino IDE. Here is how I program the Arduino Micro: avrdude -c ...
2
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3answers
2k views

Issue with usbserial for arduino clone

I have attached photo of the clone Uno board recently acquired, and I am working on a Mac OS X 10.7.5 I have sourced the solution from http://javacolors.blogspot.com/2014/08/dccduino-usb-drivers-...
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1answer
525 views

USB to TTL with switchable 5v and 3.3v in one

are there any USB to TTL with switchable 5v and 3.3v i need to use it for raspberry pi and arduino
3
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2answers
22k views

Connect Arduino via TX RX Pins to Computer's USB Port

I want to avoid using the big USB B connector to program my Arduino Mega. Since there are those RX TX Pins I thought, it would be possible, to connect my USB - Wires from my PC directly to those RX TX ...
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3answers
7k views

Arduino Raspberry Pi USB Communication [closed]

I am trying to connect an Arduino and Raspberry Pi over USB. I would like to send serial commands, just like the serial monitor in the Arduino IDE. I know how to do this on the Arduino end but I'm ...
0
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1answer
105 views

unable to install usbserial driver for GPRS shield with mac air vs. 10.9

Despite all my efforts and web crawling I can not install the necessary driver to connect my Arduino uno R3 to the GPRS shield from seeedstudio. I have attempted downloading the VCP driver from http://...
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0answers
44 views

One FTDI on Three Atmega

I'm doing a schematic for an arduino project-based and I can not proceed. I'm facing a problem which I have no idea how can I solve it so that's the reason I'm writing back to you. The thing is: I ...
0
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3answers
566 views

Arduino UNO does not get recognized by PC(no USB connecting sound), also TX and RX not blinking, neither are lit

I am trying to build a robot, which needs motors to roll around. So I was trying to control two DC motors with H-Bridge that comes with Arduino StarterKit(H-bridge motor driver [L293D]). I used Sketch ...
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1answer
91 views

connection issues with 3 arduinos any suggestions?

I have 3 arduinos that I want to program on, all of them with their own cable and I have tried to connect them to my laptop on several different usb ports, my usb ports work with mouses so that's ...
0
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1answer
558 views

How to send data from a smartphone to Arduino

My goal is to build an extremely low cost quadcopter, by using the sensors of my smartphone (it will be mounted on the quadcopter). The arduino will only control the speed of each motor, as received ...
1
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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> #...
2
votes
1answer
1k views

communicating with arduino over serial via terminal

I'm attempting to write data over a serial line to the arduino, however I don't want to use the arduino IDE but rather use the command line. In order to do this I have the following commands: $...
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0answers
190 views

Daisy Chaining USB Communication over Arduino Due

I have two Arduino Due boards. I would like to connect one to my computer through the programming port as USB Serial so that I can send it commands, but I would like it to also be able to communicate ...
1
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1answer
2k views

Why does Arduino use USB A-B plug, instead of A to micro USB plug?

I understand that A-B plug used to be common but they could have switched to micro without issues. My questions: Why does Arduino use USB A-B plug, instead of A to micro USB plug? What are the ...
2
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4answers
155 views

Can an Arduino Micro receive commands from another microcontroller when hardwired together?

I plan to build functioning reaction wheels, controlled by an Arduino Micro. Ideally, I'd like to have the reaction wheels, and the micro, be a single unit which would receive external commands from ...
2
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1answer
342 views

Get USB host controller serial number or ID using Teensy or other HID devices

I have a Teensy board and would like to know if there's a way to get a serial number (or any other kind of ID that is preferably unique) of the host controller that I plug my Teensy into. E.g. can I ...
0
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1answer
41 views

Is this set up appropriate?

Hello Internet Arduino enthusiasts! I'm totally new to Arduino and as my first project, I'd like to make a controller connected to computer A (the master) and computers B and C as 'slaves'. The ...
6
votes
3answers
2k views

How to stop Arduino from drawing power through USB

I'm working on an embedded project, where I use arduinos as a "sensor shield" for RaspberryPi (I have model B). The problem is, that the RaspberryPi's USB port is not powerfull enough to drive WiFi ...
0
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1answer
3k views

Mac won't detect Serial Port for Leonardo

EDIT: The problem was the cable I was using (see answer below). I have a MacBook Pro running OS X Yosemite (10.10.1). I connected my Arduino Leonardo to my computer for the first time today (using a ...
3
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1answer
1k views

USB mouse/keyboard passthrough feasible?

I'm looking to achieve the following: USB HID Mouse (or Keyboard) -> [ Arduino device ] -> PC | `-> Internet ...
1
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3answers
3k views

Arduino Leonardo is not recognized by usb cable in Windows 8

My Arduino Leonardo was working properly but for the last two hours when I connect it to a PC via a USB cable, it is reporting something like USB is not recognized and even in device manager it is not ...
15
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1answer
20k views

Arduino Nano no serial port for MacBook Air 2013

Problem I have an Arduino Nano connected via a USB cable (Type A to Mini Type B) to my MacBook Air (Mid 2013 Model). The PWR LED is on while the arduino is connected. Opening the Arduino software, ...
0
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2answers
2k 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 ...
0
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1answer
493 views

Arduino works bad when powered by 9V battery

At first I am sorry for my bad English. I am making robot which can do a lot of things... If I connect arduino on my robot with PC via USB, the robot works properly. If I use external power supply (...
3
votes
3answers
9k views

Can I simply unplug the Arduino usb if serial communication is active?

So, after the sketch is uploaded, and I want to turn the Arduino off while it is running a sketch, all I have to do is unplug it. Should be safe as long as nothing is uploading. But I wonder, if I use ...
1
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1answer
1k views

Get board.vid and board.pid value in code

I'm working on a custom Arduino core based on the teensy code and want to be able to get the board USB VID/PID from boards.txt, as in .board.vid and .board.pid From what I can tell, Arduino already ...
7
votes
4answers
10k views

ATtiny85. How do I burn a bootloader? What is the process?

I want to use all six I/O pins of an ATtiny85, that means also using the reset pin as an I/O pin, however, I found out that if I disable the RESET pin, I can no longer program the ATtiny using an ISP ...
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1answer
2k views

Using Arduino Nano as USB Host

I'm pretty new to microcontrollers and Arduino and since I can't find any satisfying information on my problem, I hope that you might answer them: My project is actually quite simple: I just want to ...