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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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1k views

tinygps abnormal behaviour with EM408 gps

I have an Arduino Duemilanove and em408. My code is this: #include <TinyGPS.h> #include <SoftwareSerial.h> #define GPS_RX_PIN 2 #define GPS_TX_PIN 3 TinyGPS gps; SoftwareSerial ss(...
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1answer
132 views

Software and Hardware serial same time [closed]

Im using Arduino MEGA and using Hardware serial 1 and one software serial interface for communicate two different devices Nextion HMI(hardware serial 1) and Modbus temperature controller(software ...
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1answer
341 views

Send Multiple Value from Arduino uno to nodeMCU using serial [closed]

I want to send 7 sensor data from Arduino uno to nodeMCU. But using serial I can send only one. How to send all 7 at the same time with time sync between the both devices.
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1answer
112 views

HC-05 modules with joystick driven platform [closed]

I am working to create a joystick controlled platform using bluetooth to communicate, but am having several problems. The platform https://www.dfrobot.com/wiki/index.php/Cherokey_4WD_Mobile_Platform_(...
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1answer
109 views

i uploaded the code but when i open the serial monitor, but the 'sendCommand' isn't working in serial monitor…plzz help

#include <SoftwareSerial.h> #define DEBUG true SoftwareSerial esp8266(2, 3); // RX, TX void setup() { // Open serial communications and wait for port to open: Serial.begin(9600); //for ...
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1answer
218 views

Serial communication with more than two Arduinos [duplicate]

Is my syntax "SoftwareSerial uno1(0,1); // RX, TX" is right to communicate with more than two Arduinos?. How can I communicate with three Unos via single Mega? #include <SoftwareSerial.h> ...
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2answers
1k views

GSM GPRS module not getting any output from Rx , Tx

I am using a SIM800 GSM/GPRS module. I connected it using 4 wires: Vcc 3.7 volt (2 amp supply), RX and TX and GND. Whenever I try to send a command it shows me nothing. Here is my code. //Serial ...
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1answer
570 views

Arduino Software serial not showing the received data

I get the data from a sensor which is in RS485. I am using RS485-RS232 Converter. Then its given to uart usb converter and I get the data in TTL. I am able to receive the data in uart (hyperterminal). ...
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2answers
47 views

Send serial data at custom voltage using PWM

The Raspberry Pi has 3.3 V logic level and the Arduino has a 5V logic level. It is warned against connecting the Arduino TX to the Pi RX: Pi is 3.3v and the Arduino is 5v. Connect the two and you ...
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1answer
573 views

GMS send SMS text messages many times

The GSM sends many SMS text messages and does not stop. How to send only one SMS? This is my code: #include <SoftwareSerial.h> SoftwareSerial mySerial(9, 10); char msg; int vibr_pin = 7; void ...
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1answer
1k views

Unable to convert string read from bluetooth to int [closed]

I am using a HC-06 and i want to read a number ending with f as a delimiter, the first three numbers as my servo position, however converting the string into int is giving an endless series of 0s. I ...
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1answer
339 views

Solution for two software serials

I've been working a while on a project using 3 Arduino Nanos, linked together using this tutorial Nick Gammon. As I am not experienced with Arduino programming, I was making it step by step. First I ...
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1answer
971 views

Arduino to ESP8266 (SoftwareSerial) communication, does not receive full data

I have an Arduino Uno and an ESP8266, connected over serial through ESP8266 pin GPIO_2 (which is set as RX over espsoftwareserial) and 11 on Uno (which is set as TX over SoftwareSerial). I am trying ...
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votes
1answer
740 views

Unable to read the Serial Port through Arduino the way Serial Port Monitor softwares read it

I have a device feeding Rx Tx data every minute. I connected it to the computer. I downloaded a Serial Port Monitor Software, and here is the data I captured using that software. Now when I try to ...
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2answers
3k views

GSM Modem Connection Directly to Rx and Tx

I am using Arduino Uno and using SIM800 GSM GPRS modem. I am connecting Arduino directly with SIM800 GSM/GPRS modem. I already read manually about GSM like how much power supply it needs and what ...
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votes
1answer
61 views

Strange binary number representation

I have a very simple sketch, something like this: int aFour = 4; softwareSerial.print(4,BIN); softwareSerial.print(aFour,BIN); Which gives the following output: 1001 0011 Why don't they print ...
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1answer
2k views

How to work with arduino softwareserial communication using HC-05?

This is my first project using bluetooth module HC-05.i am using two of this module.one is with arduino nano(slave) and another one is with arduino uno(master).I have paired them through AT commands . ...
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votes
1answer
54 views

Create an a message from two inputs[Programming Help] [closed]

I'm a bit new to this and I have the following function that I'm having trouble getting it to compile. The intent is to create a message to write out to a software serial port. Inputs are two int ...