Serial2 Don't compile

ardisd

I have recently changed to using https://dl.espressif.com/dl/package_esp32_index.json in the boards manager now any application using serial2 wont comple. I get an error Error compiling for board M5Stack-Core-ESP32.

Thanks

David Ardis

ajb2k3

@ardisd Can you post a screenshot of the error ouput from arduino?

ardisd

Enclosed screen shot as requested

I get the same error when compiling Serial2.ino and my own code

ajb2k3

Are you running arduino 1.8.7?
Thats not all the error.

ardisd

Upgraded to 1.8.7 was on 1.8.5

This is the error now

ajb2k3

I first thought is to tell you to Backup and delete the SD folders in dropbox and
C:\programfiles(x86)\Arduino\Librarys\SD
and then try again.

Can I see your source code?

ardisd

Just the standard serial2 sketch

#include <M5Stack.h>

HardwareSerial Serial2(2);

void setup() {

M5.begin();

Serial.begin(115200);

// Serial2.begin(unsigned long baud, uint32_t config, int8_t rxPin, int8_t txPin, bool invert)
Serial2.begin(115200, SERIAL_8N1, 16, 17);
}

void loop() {

if(Serial.available()) {
int ch = Serial.read();
Serial2.write(ch);
}

if(Serial2.available()) {
int ch = Serial2.read();
Serial.write(ch);
}
}

nnn

I got the same problem.
I changed the rename of Serial2 and fixed it.

HardwareSerial Serial2(2);
→HardwareSerial Serial2_(2);

ardisd

@nnn 在 Serial2 Don't compile 中说：

HardwareSerial Serial2_(2)

Thanks

That worked for me

David Ardis