Questions tagged [softwareserial]

A library for emulating UART functionality in software on any available digital IO pins. Use this tag for questions regarding SoftwareSerial.

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105 views

How do I Continuity Test/Troubleshoot a Linksprite RS232 V2 Shield?

I have a Linksprite RS232 v2 adapter (which uses a MAX232 chip), as per this image. I have soldered on the headers and tested the pins to make sure there are no solder bridges. I have set the jumpers ...
2
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1answer
1k views

Laser emitter + receiver for Arduino (Arduino to Arduino communication)

I'm working on a project using 2 Arduinos connected to 2 computers to demo Serial to Serial communication. We're using Arduino Uno connected to the computer via Serial and software serial for inter-...
2
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1answer
121 views

Accelerometer (I2C) and Fona Shield (software serial) won't work together

I am using a Fona 808 shield with an Arduino Uno and the LSM303 accelerometer. The accelerometer is connected via I2C and the Fona uses software serial. My project requires the accelerometer to be ...
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0answers
1k views

Sending binary data to Matlab via serial

I would like to exchange data via Xbee. I've set up a communication based on strings between the Arduino and a Matlab software. Unfortunately this kind of communication isn't enough robust and ...
2
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0answers
795 views

Hiduino as a Serial-USB midi coverter

I have an Arduino Mega2560 configured to Hiduino, which makes the Arduino a driverless class-compliant MIDI interface. I am currently converting RS232 serial I/O data to midi data using the 'hairless ...
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2answers
382 views

Bluetooth Communication Not Working with DC Power But Works With USB Power?

I am running a HM-10 Bluetooth Low Energy (BLE) module to transmit serial data (using SoftwareSerial) from an analog sensor onboard my Arduino Uno to a serial terminal app on my Android phone. When I ...
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0answers
46 views

reference to 'File' is ambiguous. Why am I getting this error?

The program is supposed to take photo and store the picture into the SD card with the timestamp. My Program Code: #include <SdFat.h> #include <Adafruit_VC0706.h> #include <SPI.h> #...
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0answers
45 views

Serial Communication between arduino and nodeMCU

I am trying to connect a nodeMCU to arduino mega using serial communication so that i can read data from firebase. I have put the following code on the NODEMCU. #include<SoftwareSerial.h> //...
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0answers
115 views

RS485 Serial Communication not working with Arduino

I am trying to control 2 devices with my arduino using RS485 communication. Basically switch on device 1 for 5 seconds when I send 'g' to the master. And switch on device 2 for e3 seconds when I send ...
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1answer
67 views

Using Arduino as ISP and SoftwareSerial at the same time

I'm trying to use my Arduino Uno as an ISP to program an ATTiny85 and at the same time check my board by using the SoftwareSerial library to output the values I'm getting from my sensor. Is this ...
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2answers
110 views

Two serials can't work on the same speed

I have a device which sits on pins 10/11 of Arduino UNO. I am trying to send commands from my PC using Arduino to relay my commands to the device via Serial. The problem is that if I use speed 9600 ...
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0answers
1k views

Reading +IPD response from serial.read() using Arduino UNO and ESP8266

I have a python server running on my PC and I am using an Arduino Uno (wifi enabled by a ESP8266 chip) as the client. I can make the the server and client communicate using AT commands as shown below: ...
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0answers
262 views

Arduino hardwareSerial Bluetooth.println not sending string over 310 chars

Hey all I am wondering if my code below can be modified in order for the Arduino to send more than 300 chars to a HM-10 bluetooth 4.0 le module? #include <SoftwareSerial.h> #define ...
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0answers
233 views

Trouble in acquiring NEO6M GPS data through S-Function builder at Matlab simulink using Arduino libraries

I have connected a NEO6M GPS module to an Arduino Mega 2560 and programmed using TinyGPS++ library's "Device Example". I am getting proper data at serial port. NEO6MGPS to ArduinoMega2560 Vcc ...
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0answers
199 views

ESP8266 sometimes stuck on AT+CIPSEND with “busy s…”

I'm using an ESP8266-01S Wi-Fi module on an Arduino UNO. When I use AT+CIPSEND=4 and then type test it successfully sends that message to my laptop. However, sometimes the module returns a busy s... ...
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0answers
961 views

Arduino Mega 2560 SoftwareSerial Not Working

We have an xBee Pro S2C that is using this library (https://github.com/andrewrapp/xbee-arduino) very well on a Software Serial connection to ports 2 and 3 on an Arduino Uno. However, when we take the ...
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0answers
93 views

How can I use delimiter/split serial input in a loop function?

How can I use delimiter/split serial input in a loop function? I want to use each word from the input and check a database, to check availability. #include SoftwareSerial.h> #define ...
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0answers
742 views

'SoftwareSerial' does not name a type in Adafruit Feather M0 Bluefruit LE

I am trying to create a software serial connection between Arduino Uno & Adafruit Feather M0 Bluefruit LE. I am getting the following error in the M0 sketch: Arduino: 1.8.1 (Windows 10), Board: ...
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0answers
2k views

How to define SoftwareSerial pins on ESP8266

I'am new to arduino yun and ESP. In fact, i have an arduino yun which has a sim808 dfrobot shield on it which uploads GPS data online at a regular time interval. I want to connect the dfrobot sim808 ...
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0answers
264 views

GSM librarys Software Serial conflicts with I2C pins 2 and 3 for Arduino Micro

The GSM library apparently uses the Software Serial library to perform the communication. The Arduino Micro specified pins for the serial connection to the GSM is pin 2 and 3 (doc says, but see def of ...
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0answers
252 views

ESP-12f SoftwareSerial read fails

I am trying to use esp8266 version of SoftwareSerial, espsoftwareserial, on an esp-12f. If I initialize an object using: SoftwareSerial gpsSer(14,12, false, 256); or SoftwareSerial gpsSer(12,14,...
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0answers
65 views

Maplin Bluetooth Shield for Arduino - BAUD rate

I am currently using a Bluetooth shield which i bought from maplin, see: http://www.maplin.co.uk/p/bluetooth-shield-for-arduino-n97dg. I have got it to work perfectly on the default 38400 BAUD , but ...
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0answers
174 views

How to filter out “jumpy” readings sent using Bluetooth

I'm using App Inventor to continuously send orientation values (as strings) to my Arduino, which are read using Serial.parseInt(). Using simple IF statements (if value > threshold), I'm trying to turn ...
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0answers
526 views

Controlling dynamixel AX12 by Arduino

Actually, i would like to control 12 motors of AX-12 using Arduino .. I could control just 2 motors. However when i send a command to the 12 motors they don't move and one or 2 of them move randomly!...
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0answers
1k views

Sending GPS data between two Arduinos using Easy Transfer

I'm trying to get GPS data transmitted from one Arduino UNO to a second unit to eventually be displayed on an LCD and stored in an SD card. I am using Xbees S2C's on Xbee Shield's to do this. The ...
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0answers
112 views

Encoding clock signal into linear block codes

In the VirtualWire library, it is possible to encode the clock signal as the library is doing with 4b/6b coding. This is possible because VirtualWire uses convolutinal coding, where the information is ...
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0answers
193 views

Trying to pass a single char to a serial device

Good day, I have a serial device that when connected via hyper terminal gives me a status report when I press the letter 'd' no enter key or anything required just the letter d. Also Ctrl-t will give ...
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0answers
154 views

Why After instancing TinyGPS , serial stop working?

I have GSM shield (and Arduino UNO) works fine with this code : #include <GPRS_Shield_Arduino.h> #include <SoftwareSerial.h> #include <Wire.h> #include <Suli.h> #define ...
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0answers
649 views

Is replacing USB serial WITH ESP8266+ESP link feasible?

ESP8266 (01-512k,) Arduino Uno (clone), Arduino IDE, Python 2.7.6 on Macbook pro running OSX 10.10.4 64-bit. Hello! I'm using a motion sensor with the following setup: Arduino Uno+motion sensor >>>...
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0answers
37 views

Get the last piece of data received on a serial port

I'm using software serial to use multiple ports as serial in an arduino UNO and each of those is constantly receiving data. I want to know a way to get just the "newest" data each time I listen to one ...
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1answer
249 views

Cannot receive data from GPS SD Shield V2-B

I am attempting to receive GPS data from a GPS SD Shield V2-B purchased from maplin. I have attempted the very simple sketch they provide on their website linksprite.com. I have also tried following a ...
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0answers
1k views

Why the serial connection only work when Tx and Rx are shorted?

I have a Arduino Pro Mini 3.3V connected to a sim800l chip using a serial connection of 9600bps. When I connect the Arduino to the device, it seems I don't receive anything on the Arduino Rx pin. I ...
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0answers
507 views

Teensy 2.0++ SDA SCL pins not accesible using ARDUINO software

Hi I was looking to interface Teensy++ 2.0 with MPU6050 for a simple IMU project. I have done this previously using Teensy 3.1 by trying the project of kriswiner however I also wanted to try it out on ...
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0answers
512 views

How to read all avaiable data from a Serial stream and then stop

I am trying to read data from the Serial port in my Arduino, store it in a buffer and when all the data has been read stop reading and then start using the data (the talkMIDI() function). The Arduino ...
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0answers
569 views

ATtiny85 + HC-05 + Oled = smart watch

I am using an ATtiny85 for making a smart watch. Bluetooth module HC-05 with ATtiny85 pins PB3->TX, PB4->RX and it works. Secondly I have connected a 0.96" OLED on PB0 (SDA) and PB2 (SCL) and this is ...
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0answers
92 views

SRF-02 UART, transmitting from one address to another

So I just starting playing around with UART and SoftwareSerial while playing with these SRF-02 Sensors - http://www.robot-electronics.co.uk/htm/srf02techSer.htm I need help getting one to read to the ...
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0answers
689 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 ...
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2answers
725 views

How will Arduino communicate wirelessly through XBee?

I am using one XBee S2 configured as coordinator API attached to my laptop and one XBee S2 attached to an Arduino Uno that is configured as a router AT. I want to generate an alarm on LabVIEW as I ...
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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. ...
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0answers
170 views

Using Parallax VPN1513 GPS Smart Module with External Antenna and Ruggeduino

I am using a Ruggeduino for a project involving an autonomous vehicle, and I need GPS capability in it. I am using the "VPN1513 GPS Smart Module with External Antenna" from Parallax (https://www....
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0answers
849 views

HC-05 and HC-06 Bluetooth not communicating well

I am trying to communicate between two Arduino UNO. One has a HC-05 which is configured as master, the other Arduino has HC-06 which is the slave. What I want to achieve is to be able to print a ...
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0answers
959 views

Multiple SoftwareSerial ports - how to handle the limitations

I am building an access control project which uses two SoftwareSerial ports. One will be used for communication with an RFID reader and another one to receive serial messages via an Xbee (e.g. remote ...
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0answers
285 views

How to do Serial monitor with Arduino Yun?

I'm trying to read some values from a TCS3200 colorsensor using Arduino Yun. I have some code, which you can see below, that I used when I tested on the Uno. With the Uno everything worked fine and I ...
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0answers
528 views

Arduino GSM Shield web server hangs

I use official Arduino GSM Shield with Uno R3. I uploaded web server examples from official GSM library. I use a simple python script to make TCP/IP connections to my GSM Shield web server. I send ...
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0answers
573 views

How to serial read from a TM-88 printer for status

I am working off of my own fork of the TM-88 printer library by signalwerk It can be found here ( https://github.com/docwisdom/thermalprinter ) With this I am trying to get a printer status before I ...
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1answer
1k views

Wrong characters received with Bluetooth Mate Gold using Software Serial

I have a Bluetooth device from Sparkfun which I would like to use with the Arduino Mega. If I connect the module via the hardware serial pin everything works fine but when I use other pins like 12 and ...
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0answers
29 views

ESP8266 crashing with blue LED always on and without the word “w_flash” on startup

When using Arduino SoftwareSerial with ESP8266, the blue led turns always on every time I reset the circuit by power. The only way to take the ESP working again is reflashing with the SDK 2.2.1, AT ...
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0answers
49 views

Send ECG data using buffer in real time to the server without using delay

I am trying to make a ECG monitoring system using Arduino, GSM and ECG sensor which data should be sent to the private server in real time. Those data are then collected via Matlab on the remote ...
0
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1answer
51 views

Sim800 FTP Arduino

I've been unable to FTP anything using an Arduino and SIM800L. I have reduced the code as far as possible: #include <SoftwareSerial.h> //Create software serial object to communicate with ...
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0answers
18 views

Arduino Nano and neoSWserial library

So I've been playing with neoSWserial library on Arduino Nano. I've been using the example interrupt code: #include <NeoSWSerial.h> NeoSWSerial ss( 4, 3 ); volatile uint32_t newlines = 0UL; ...