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M5AtomS3 Program Compilation and Flashing

1. Preparation

2. Download Mode

  • Press and hold the reset button (for about 2 seconds) until the internal green LED lights up, then release. At this point, the device has entered download mode, waiting for flashing.

M5AtomS3 / M5AtomS3 Lite

3. Port Selection

  1. Connect the device to the computer via a USB cable. After completing the driver installation, you can select the corresponding device port in the Arduino IDE.

4. Program Compilation & Flashing

  1. Open an example program from the driver library, click the upload button, and the program will automatically compile and flash.
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