Questions tagged [serial]
Serial communication is the standard USB connection between the Arduino and a computer with a standard USB A to B cable or through the TX/RX pins using a USB to serial converter. It can also refer to the serial library.
2,169 questions
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Delphi-vel, hogy lehet? Vezérelni sorosporton arduinot [closed]
Az Arduino soros portját, hogy lehet elérni az ARDUINO IDE nélkül Win 10 ből
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USB Host Serial Port Emulator
I am trying to build a USB Host-side serial port emulator, similar to HyperTerminal or TeraTerm, to run on an Arduino platform. That is, to send and receive ASCII characters to and from a USB Serial ...
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1 answer
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Ultrasonic sensor showing random readings
I am using a HC-SR04 ultrasonic sensor to measure the distance using an Arduino Uno. When I run this code which is worked perfectly in the previous, it only shows just random readings in the serial ...
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How to instantiate a 2nd serial port on STM32 Nucleo-C092RC
I am trying to use two serial ports on the STM32 Nucleo-C092RC, but the 2nd serial port (i.e. USART1) is completely silent (USART2 is the default serial port used by STLink/VCP/USB on the C092RC). No ...
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1 vote
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Reading JSON from Arduino via Serial Missing Parts of Message
I have a project (Digital Dashboard for a Motorhome) in Pi that reads JSON data from an Arduino board and sends it via Serial. The Pi gets the JSON data, makes some adjustments and then sends it to an ...
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Arduino HardwareSerial flow control with handshake XON/XOFF
I am sending large texts from PC to Arduino over Serial and I cannot simply copy-paste it, as Arduino is not fast enough to process it on the fly. I need some flow control (probabely XON/XOFF) so ...
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2 votes
1 answer
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ESP32 and Fingerprint Sensor – Serial Monitor Shows Nothing
I'm trying to connect a fingerprint sensor (Adafruit type) to my ESP32 (DOIT ESP32 Devkit V1), but the Serial Monitor remains completely blank, even though I'm using Serial.begin(9600) and printing ...
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1 vote
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When I run my for loop the serial monitor is giving very strange results
This is unfinished code for driving a 4 digit 7 segment display. When I run my data function that should output the data to send to the shift register, I get a very weird output. 0 00111111 1 00111111 ...
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How do I read only the first character from serial monitor input and then the second up characters?
So I want to variably set the voltage going to one of RGB_LED's pins . The way I thought of doing it is to write the quantificator into the serial monitor with the first byte representing the variable ...
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2 votes
2 answers
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Problem sending serial data between Arduino and ATtiny back and forth
I am working on communication between a Arduino and ATtiny13, and I need to get this bare-bone communication to work. There is a Arduino Nano powered by USB cable from the PC, and there is ATtiny13 ...
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Looking for a library to operate LEDs using FastLED via serial communication from another device running Python
I have an LED display connected to a Teensy microcontroller using the FastLED library, which is connected to a Raspberry Pi Zero running Python via a USB hub. I am looking for an existing library that ...
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Using TX as gpio, while using RX as serial pin to read data from other uC - Arduino atmega8
I am having a circuit that I am using the RX pin to receive data (int) from other uC (ESP12E) as one way communication, and for the lack of pins I had to use the TX pin as GPIO for a digit of a seven ...
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1 answer
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Arduino IDE Serial Monitor is working, but not Putty - esp8266
I have an esp8266 that most often won't work with Putty, but always works with Serial Monitor in Arduino IDE. Baudrate is set to 115200. Putty fills the terminal window with odd characters and the ...
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Input/Output error upload with arduino-cli / avrdude
Unpacked my first Arduino today, an Uno. Went to try the instructions from the arduino-cli getting started tutorial. When I connect the unit with USB, I get three quick flashes, then slow continual ...
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2 votes
1 answer
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UART Transmission Incorrect on ATTiny826
I'm currently trying to test an extremely simple circuit where I use an ATTiny86 to output some arbitrary values via serial to an Arduino micro. The problem I am facing is that all of the values being ...
