monitor_rts/dtr not working with ESP32 with auto-upload wiring

[winnieXY]

What kind of issue is this?

• [x] Feature Request. Start by telling us what problem you’re trying to solve. Often a solution already exists! Don’t send pull requests to implement new features without first getting our support. Sometimes we leave features out on purpose to keep the project small.

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Configuration

Operating system:

PlatformIO Version (platformio --version): PlatformIO Core, version 6.1.0

Description of problem

I've designed a PCB with a ESP32 as controller with an automatic upload functionality using the RTS/DTR linked to the EN/IO0 of the ESP32. The upload works flawlessly and the microcontroller itself is working fine, too - however getting verbose information back via Serial communication is tricky as the monitor will use the RTS/DTR lines, too - which effectively resets the microcontroller and preventing it from running. I'm perfectly aware of monitor_rts/dtr = 0 and this doesn't work (I guess due to timing issues). Disabling RTS and DTR manually within the montiro using STRG-T D and hen STRG-T R does the job however.

Is there any option available to influence the timing of these monitor_rts/dtr settings? Ideal would be a way to start with both set to "1" and then set first DTR to "0" and afterwards RTS to "0".

See: https://community.platformio.org/t/upload-and-monitor-task-problem-with-dtr-and-rts/15947/3 for other users with the same issue.

Steps to Reproduce

1. Design PCB with auto upload functionality and ESP32

2. Upload sample code (see below)

3. Attach monitor

Actual Results

The esp is set to programming mode instead of attaching the serial

Expected Results

The monitor is attached to the serial of the esp and you'll get serial communication back.

If problems with PlatformIO Build System:

The content of platformio.ini:

[env:esp32dev]
platform = espressif32
board = esp32dev
monitor_speed = 115200
monitor_rts = 0
monitor_dtr = 0
framework = arduino

Source file to reproduce issue:

#include <arduino.h>
 void setup() {Serial.begin(115200); Serial.println("Test");  }
 void loop() { }

Additional info

[ivankravets]

Do you mean behavior similar to https://github.com/platformio/platformio-core/blob/develop/platformio/test/runners/readers/serial.py#L52?

[ivankravets]

Please reopen if you still need help

[winnieXY]

Do you mean behavior similar to https://github.com/platformio/platformio-core/blob/develop/platformio/test/runners/readers/serial.py#L52?

Yes, exactly something like this. Sorry for the delay - it's vacation time. :-)

[winnieXY]

I'm not able to reopen the issue - but it would be nice if you could reopen it - the issue persists.

[winnieXY]

Any news on this? There is a manual work around, however it would be cool to do this automatically