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

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I would like to use a STM32F105xx to build my own computer keyboard. That MCU has support to USB OTG (FS). So, I have 2 questions: Can I flash microcontroller with usb or I need a external programer? ...
Amparo's user avatar
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I've recently bought an Arduo Due to create some sort of a Midi controller together with the MIDIUSB library. I have create a simple a test program with 1 potentiometer (without the use of a class) ...
Willem Van der Veken's user avatar
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I have a piece of equipment that has a USB output, that a flash drive gets inserted into, to collect data as the equipment completes its cycles. I need to make a device that can replace the Flash ...
Steve Lewinsky's user avatar
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I am currently prototyping an HID USB device using Arduino Nano and V-USB library. The problem is that although I can read from the device I cannot write to it. Here is the schema: As for the ...
Pawlakov's user avatar
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I've got a Dotstar strip, a piano, and an UNO(w a usb host shield). I can get and properly translate data from the piano to the UNO, so I'm definitely getting the right information to the board. When ...
skapunk1806's user avatar
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I am trying to use a PS4 controller with my dynamixel setup using the OpenCR 1.0 board. The USB Host Shield 2.0 library is used to talk to the controller, but the current library does not support Open ...
Prasanna Natarajan's user avatar
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noob here So I managed to get my circuit to be a standalone circuit (as pictured below). I want to use this circuit as an input to a game on my computer. What I want to know is could this micro-usb ...
user19964's user avatar
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I have an Arduino MKRZero that I tried to load the following program into: #include <FastLED.h> #define NUM_LEDS 60 #define ledPin 4; AudioFrequencyMeter meter; CRGB leds[NUM_LEDS]; void ...
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I've been having some issues with my Arduino Mega Board. I built a PCB that would sense LM35 reading, low-pass filter it and send it to A0 into the Arduino. This is the input for a PID controller ...
shupper's user avatar
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I want to control a scientific instrument with an Arduino through GPIB. I have a USB-GPIB adapter, so I would want to do it through the USB. There are tutorials on the Internet on how to connect ...
Mr_Tusk's user avatar
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I have a project that I am working on that uses a PS3 controller to connect to an Arduino Mega 2560 ADK (built-in USB). I have been trying to test the controller/arduino connection and I cannot get ...
Chris Wren's user avatar
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I try to solve this a month..but still problem... I want to make below led-matrix spectrum. Thumbnail image https://youtu.be/X35HbE7k3DA ※Environment Device UML One Raspberry pi 3 : 2019-09-26-...
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I'd like to send a monitoring information (temperature) to a serial receiver periodically. The problem is I don't know if there is any monitoring service (serial receiver) and how fast it is reading. ...
firendlyQuestion's user avatar
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I've created a small project using an Uno. I usually mess around with ESP8266 chips, because they have WiFi and are relatively easy to work with. However, this time I've decided to go right back to ...
MortenMoulder's user avatar
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I have a USB mouse which I am using to measure distance travelled by my bot for a project. I followed this blog to get the optical sensor from the mouse from the arduino and interface it with the ...
RishiC's user avatar
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I have problem with Arduino MEGA, Arduino Deu etc... Those Development board are having separate MCU except main MCU... Why? For what purpose are they used for? as FTDI or bootloader chip or ...
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I am trying to connect Logitech F310 gamepad to Arduino Uno with ARDUINO USB HOST SHIELD https://store.arduino.cc/arduino-usb-host-shield using http://github.com/felis/USB_Host_Shield_2.0 library. ...
richard's user avatar
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Is it possible to program chips like the Arduino uno's Atmega328P directly with USB serial from your computer? Where can i find information on the protocols/standards to do such a thing? More ...
rrswa's user avatar
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I was trying to obtain image from ESP32-CAM (with ov2640 camera image sensor). I obtained the image through camera web server by connecting the ESP32-CAM and PC to same wifi network. A USB to TTL ...
Aban Varghese's user avatar
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I want to write a c++ program that does something with the data from one of the input analog pins as the program runs, but I want to know how to get the value from the arduino uno though the USB port (...
Coder Motor's user avatar
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I am using an Arduino (Elegoo) Mega with Motor shield to drive a digital train set. The Motor shield is powered from a 12v 1.1 amp dc power supply and I have the Arduino plugged into my laptop via USB....
kenjara's user avatar
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Last days I have been investigatin schematics of arduino due board. The purpose of proper understanding of schematics in crucial for me, beacuse I indend to build myself my own board with some minor ...
user6274417's user avatar
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How do I connect the cables in order to program the Arduino Pro Mini with the CP2102 usb interface? The TX, RX and GND is easy, but I am not sure about the RST, DTR, DST, etc. When I try cables like ...
adrianTNT's user avatar
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How would I safely connect an Arduino so that it can detect if a laptop is on or off? The Arduino would be powered separately by a normal USB charger, since it needs to be turned on even when the ...
Magnus's user avatar
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I've searched this and have only found solutions for receiving data FROM Arduino TO android, I need the opposite. I basically need to figure out how to press a button from my android phone that will ...
Couch Mango's user avatar
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I am fairly new to Arduinos and I recently bought a nodeMCU Amica esp2866 for this tutorial. I have my board connected to my MacBook Air (10.14.5 with Mojave) and only the "/dev/cu.Bluetooth-Incoming-...
zac5482's user avatar
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I'd like to get a word of advice regarding the subject. Basically there's a COM port based device which I need to connect to an Android tablet via USB. The tablet will be exchanging data packages with ...
Ivan's user avatar
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I'm working on a home project that centers around a non-Arduino Ubuntu IoT board but I'd like to add an ATmega32U4 chip for USB HID. I'm thinking about using an Arduino Micro. The signals to the ...
sscirrus's user avatar
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I am trying to drive a stepper motor using an Arduino Mega 2560. There will ideally be two RS232 signals being read into / written from the Arduino, each using male USB 3.0 connectors; one of these is ...
Jackalakalaka's user avatar
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I am running a simple blink/hello world program on Teensy 3.2. The code is compiling and running fine but I can't see the serial output. When I try to open the serial monitor it gives me "Board at /...
Hubert B's user avatar
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I am trying to send rotary encoder output from an UNO to seven Trinket M0s and a computer via a (powered) USB hub. Currently the UNO → Laptop bit works great, serial monitoring works via the hub for ...
laffan's user avatar
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I am having an issue using a MAX 3421 EE based Arduino USB Host shield and an SD card shield. From my understanding, they should both function as long as they are using different CS/SS pins and only ...
Abe Zukor's user avatar
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I have a very simple code for a controller I'm working on for a robot. void setup() { // put your setup code here, to run once: pinMode(3,INPUT); Serial.begin(9600); } void loop() { // put ...
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I am using an Arduino UNO which worked fine until today. My system: Ubuntu 18.04 Now, the IDE can no longer connect to it: Cannot do any sketch upload Cannot ask for board info No USB ports shown in ...
fi11222's user avatar
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I'm making an ESP32 development board and I'm thinking about putting an Arduino Leonardo chip between the USB port and the ESP32's USART pins to act as a USB/USART converter instead of the FTDI chip ...
Foxcat385's user avatar
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I am trying to determine the dev path of a USB keyboard running an Arduino Pro Micro on my Ubuntu 18.04 system. The files /dev/ttyACM0 and /dev/ttyUSB0 do not exist. When I run dmesg I get: [ 410....
Sterling's user avatar
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1 answer
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I've got a USB keyboard connected to my Arduino Uno with a USB Host Shield. I'm reading keystrokes using this example from the USB Host Shield library. I need to toggle the LEDs in the keyboard (that ...
Joe Malt's user avatar
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Is it possible to program a custom description so that my python program can know exactly what USB port to connect to for that specific programming? It should be able to find any board with that ...
Espen's user avatar
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I need to have several Nanos on one USB port. They will have separate power, so power constraints won't be a concern. I need them all to go through the same serial port. They will never get anything ...
SYGMAH's user avatar
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2 votes
2 answers
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I want to make a VB.NET program to communicate over serial with the board, but I need to be sure it knows which port. Instead of programming in more advanced methods of verification, for this project ...
SYGMAH's user avatar
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-1 votes
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So I understand the USB cable consists of VCC, GND and Data+, Data-. Is it possible to connect an MPU-6050 gyro to these 4 pins, especially data+/-, and still receive them normally through the SCL/SDA ...
Big_Chair's user avatar
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At the moment, I am engaged in a project in which I have to drive Epson LQ-310 printer with Arduino Mega ADK (USB Host). There is already a library USB_Host_Shield_2.0 on Github which includes usb ...
Vamsi Ch's user avatar
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In another words, is it possible to develop a custom bootloader so sketches can be uploaded via serial connection made using the RX/TX pins and not via the USB connector (I am using Pro Micro boards)? ...
Olivier's user avatar
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1 answer
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I've run into quite the problem with my 32u4, I can't get it to reconnect to the computer upon wakeup from a sleep mode! So I have an Arduino Pro Micro featuring the 32u4, and I'm also designing a ...
AJ_Smoothie's user avatar
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I have connected to my Arduino Uno outputs relay module. Relay module has 16 relays (5VDC) which are controlled by transoptors pins (HIGH from Arduino = specific relay is off). Link to relay module ...
kot's user avatar
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I have multiple Wemos d1 mini lying around, but can't seem to get them connected to my macbook, to they do not show up in my /dev/tty? I tried updating the driver, both using home-brew and installing ...
anita's user avatar
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What will happen if I connect a STM32F103C board to a USB as well as an external power supply? Will it work? Does the STM32 decide which power source to consider?
Sushant Rasalkar's user avatar
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The Keyboard API allows the Arduino boards such as the Micro or Leonardo to emit USB signals mimicking a physical keyboard. However, the signal seems to transmit key strokes and not characters which ...
Philipp's user avatar
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I have a NodeMCU where I connected a LED strip (WS2812b, which operates at 5V). NodeMCU is powered via USB 5V. The used power adapter can supply 2.5A max. I don't have a separate power supply for ...
casper's user avatar
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I am trying to upload my sketch to an Arduino Mini Pro. My programmer is the Arduino USB2Serial. I am running the Windows store app on a Windows 10 machine. I wired everything up according to the ...
Jeffrey's user avatar
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