Thonny raspberry pi pico download8/24/2023 ![]() Solution: try a different shorter USB cable (with data wires), try a different computer USB port or use a USB hub with an external power supply. Or not enough power provided by the computer USB port.Board with some defect (bad solder joints).It’s often related to one of the following issues: The “Brownout detector was triggered” error message or constant reboots means that there’s some sort of hardware problem. Or if the ESP keeps restarting and printing the ESP boot information: ets 00:22:57 If you press the “Stop” button multiple times or if you press the button very quickly, the ESP will not have enough time to restart properly and it’s very likely to crash Thonny IDE.Įrror #4: Problem restarting your ESP board, running a new script, or opening the serial port: Brownout detector was triggered The ESP needs time to restart and establish the serial communication with Thonny IDE. When you press the “Stop/Restart backend” button, you need to wait a few seconds. If it keeps crashing, we recommend restarting the Thonny IDE software.Įrror #3: Thonny IDE hangs when pressing “ Stop/Restart backend” button: When this happens, you can usually close that window and it will continue to work. Finally, restart Thonny IDE.Įrror #2: Thonny IDE fails to respond or gives an Internal Error: Then, unplug and plug back your ESP board. Double-check that you’ve closed all the programs that might be establishing a serial communication with your ESP board. These errors might also mean that you have your serial port being used in another program (like a serial terminal or in the Arduino IDE). ![]() You should now be able to upload a new script or re-run new code. Then, click the “ Stop/Restart backend” button to establish a serial communication. Then, double-check that you’ve selected the right serial port in the Tools > Options > Interpreter > Port. Make sure your device has suitable firmware and is not in bootloader mode! (On some occasions it helps to wait before trying again.) In case it doesn’t work for you, read these next common errors and discover how to solve them.Įrror #1: You get one of the following messages: = RESTART =Įrror: could not open port 'COM4': FileNotFoundError(2, 'The system cannot find the file specified.', None, 2)Ĭheck the configuration, select Run → Stop/Restart or press Ctrl+F2 to try again. ![]() Or press the Thonny IDE “ Stop/Restart backend” button and repeat your desired action. Usually restarting your ESP with the on-board EN/RST button fixes your problem. ![]() We’ve discovered some common problems and error messages that occur with Thonny IDE.
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