trying to use both HC05 and esp8266 wifi module together with arduino nano, but observed that only one works at a time. Is there arduino limitation on using 2 SoftwareSerials together? any solution for this?
if BTserial.begin() is called after esp8266.begin(), then bluetooth send-receive works fine, but esp8266 functionality stops, and if i reverse their begin() function call sequence, then esp8266 works fine and bluetooth stops working.
#include <SoftwareSerial.h>
#include <Wire.h> // Library for I2C communication
#include <LiquidCrystal_I2C.h> // Library for LCD
SoftwareSerial BTserial(17, 16); // RX | TX
SoftwareSerial esp8266(3,2);
void setup() {
Serial.begin(9600);
BTserial.begin(38400);
esp8266.begin(115200);
}
void loop(){
String cmd = readBluetoothCommand();
if (cmd == "<toggle>"){
DoSomething();
}
}
String readBluetoothCommand(){
String s = "";
if (BTserial.available()){
s = BTserial.readStringUntil('\n');
}
s.trim();
return s;
}