Troubleshooting¶

Error during build: platform not installed¶

Error during build: platform not installed

arduino-cli core install esp8266:esp8266

The internal LED is dim and the console is blank when connected to a computer via USB¶

Fix: The Feather needs to be reset. Press the physical RESET button.

Count not open port [Errno 16] Device or resource busy¶

serial.serialutil.SerialException: [Errno 16] could not open port /dev/ttyUSB0: [Errno 16] Device or resource busy: '/dev/ttyUSB0'
Error during Upload: Failed uploading: uploading error: exit status 1

Fix: The serial port is open and reading the output of the Feather. Close the connection

Trouble installing Timezone_Generic library¶

Manually install by changing config of enable_unsafe_install to true

Download the latest release zip file.

arduino-cli lib install --zip-path v1.9.1.zip

Error during build: Missing FQBN (Fully Qualified Board Name)¶

Error during build: Missing FQBN (Fully Qualified Board Name)

Fix: Add the board (-b) parameter to compile or upload or add a sketch.json.

fatal error: secrets.h: No such file or directory¶

solar-battery-charger/solar-battery-charger.ino:20:10: fatal error: secrets.h: No such file or directory
   20 | #include "secrets.h"
      |          ^~~~~~~~~~~
compilation terminated.

Error during build: exit status 1

Fix: The secrets.h file needs to be generated. See secrets to how to generate it.

Won't connect to Wi-Fi¶

There currently is not a timeout for the wifi connection and so the Feather will continue to try to connect in and endless loop.

Internal LED continues to blink in intervals.

Connecting to SSID: MySSID
..............................

Fix: Ensure that the wifi credentials are correct. See secrets.

ModuleNoteFoundError: No module named 'serial'¶

Traceback (most recent call last):
  File "~/.arduino15/packages/esp32/tools/esptool_py/3.1.0/esptool.py", line 38, in <module>
    import serial
ModuleNotFoundError: No module named 'serial'

sudo apt install python3-serial