Failed to connect to ESP32

[DaveTakesPictures]

I'm having trouble uploading the project. There is one warning early on, and though I just updated Python, it persists and I'm not sure if that's the cause anyway.

Second error, rather generic, I looked at the link, tried suggestions such as disconnecting everything and still can't upload. It's my first time using PIO and just guessing... shouldn't I have a USB connection? I see /dev/cu.Bluetooth-Incoming-Port but I'm not connected by bluetooth?? I'm on a mac running OS12.7 and VS 1.83.0

A fatal error occurred: Failed to connect to ESP32: No serial data received. For troubleshooting steps visit: https://docs.espressif.com/projects/esptool/en/latest/troubleshooting.html *** [upload] Error 2

Full terminal ouput below:

================================================== [FAILED] Took 92.01 seconds ==================================================

Environment Status Duration

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dfrobot_firebeetle2_esp32e FAILED 00:01:32.008 ============================================= 1 failed, 0 succeeded in 00:01:32.008 =============================================

• The terminal process "platformio 'run', '--target', 'upload'" terminated with exit code: 1.

• Terminal will be reused by tasks, press any key to close it.

• Executing task in folder platformio: platformio run --target upload

/Users/davepixmb12/.platformio/penv/lib/python3.9/site-packages/urllib3/init.py:34: NotOpenSSLWarning: urllib3 v2.0 only supports OpenSSL 1.1.1+, currently the 'ssl' module is compiled with 'LibreSSL 2.8.3'. See: https://github.com/urllib3/urllib3/issues/3020 warnings.warn( Processing dfrobot_firebeetle2_esp32e (board: dfrobot_firebeetle2_esp32e; platform: espressif32 @ 6.4.0; framework: arduino)

/Users/davepixmb12/.platformio/penv/lib/python3.9/site-packages/urllib3/init.py:34: NotOpenSSLWarning: urllib3 v2.0 only supports OpenSSL 1.1.1+, currently the 'ssl' module is compiled with 'LibreSSL 2.8.3'. See: https://github.com/urllib3/urllib3/issues/3020 warnings.warn( Verbose mode can be enabled via -v, --verbose option CONFIGURATION: https://docs.platformio.org/page/boards/espressif32/dfrobot_firebeetle2_esp32e.html PLATFORM: Espressif 32 (6.4.0) > DFRobot Firebeetle 2 ESP32-E HARDWARE: ESP32 80MHz, 320KB RAM, 4MB Flash DEBUG: Current (cmsis-dap) External (cmsis-dap, esp-bridge, esp-prog, iot-bus-jtag, jlink, minimodule, olimex-arm-usb-ocd, olimex-arm-usb-ocd-h, olimex-arm-usb-tiny-h, olimex-jtag-tiny, tumpa) PACKAGES:

• framework-arduinoespressif32 @ 3.20011.230801 (2.0.11)
• tool-esptoolpy @ 1.40501.0 (4.5.1)
• tool-mkfatfs @ 2.0.1
• tool-mklittlefs @ 1.203.210628 (2.3)
• tool-mkspiffs @ 2.230.0 (2.30)
• toolchain-xtensa-esp32 @ 8.4.0+2021r2-patch5 LDF: Library Dependency Finder -> https://bit.ly/configure-pio-ldf LDF Modes: Finder ~ chain, Compatibility ~ soft Found 40 compatible libraries Scanning dependencies... Dependency Graph |-- Adafruit BME280 Library @ 2.2.2 |-- Adafruit BusIO @ 1.14.4 |-- Adafruit Unified Sensor @ 1.1.13 |-- ArduinoJson @ 6.21.3 |-- GxEPD2 @ 1.5.2 |-- pollutant-concentration-to-aqi |-- HTTPClient @ 2.0.0 |-- SPI @ 2.0.0 |-- WiFi @ 2.0.0 |-- WiFiClientSecure @ 2.0.0 |-- Preferences @ 2.0.0 |-- Wire @ 2.0.0 Building in release mode Retrieving maximum program size .pio/build/dfrobot_firebeetle2_esp32e/firmware.elf Checking size .pio/build/dfrobot_firebeetle2_esp32e/firmware.elf Advanced Memory Usage is available via "PlatformIO Home > Project Inspect" RAM: [=== ] 31.0% (used 101744 bytes from 327680 bytes) Flash: [==== ] 44.5% (used 1401097 bytes from 3145728 bytes) Configuring upload protocol... AVAILABLE: cmsis-dap, esp-bridge, esp-prog, espota, esptool, iot-bus-jtag, jlink, minimodule, olimex-arm-usb-ocd, olimex-arm-usb-ocd-h, olimex-arm-usb-tiny-h, olimex-jtag-tiny, tumpa CURRENT: upload_protocol = esptool Looking for upload port... Auto-detected: /dev/cu.Bluetooth-Incoming-Port Uploading .pio/build/dfrobot_firebeetle2_esp32e/firmware.bin esptool.py v4.5.1 Serial port /dev/cu.Bluetooth-Incoming-Port Connecting......................................

A fatal error occurred: Failed to connect to ESP32: No serial data received. For troubleshooting steps visit: https://docs.espressif.com/projects/esptool/en/latest/troubleshooting.html *** [upload] Error 2 ================================================== [FAILED] Took 95.12 seconds ==================================================

Environment Status Duration

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dfrobot_firebeetle2_esp32e FAILED 00:01:35.118 ============================================= 1 failed, 0 succeeded in 00:01:35.118 =============================================

• The terminal process "platformio 'run', '--target', 'upload'" terminated with exit code: 1.
• Terminal will be reused by tasks, press any key to close it.

[lmarzen]

Try running ioreg -p IOUSB which will list USB devices. This way you can see if it is being detected by the OS.

[DaveTakesPictures]

Thanks Luke, I'll try and work on the Mac connection later, I wrangled a PC and was able to connect and upload successfully! Works like a charm! Thanks for the great project!

[lmarzen]

I'm glad to hear that you were able to work around the issue and that you enjoy the project!