LOG 007 / LAUNCH / BEGINNER

First Project: Make a Light Blink

Blink is the cleanest first proof that the editor, compiler, USB cable, bootloader, selected port, selected board, and microcontroller can all cooperate. It is boring in exactly the way a trustworthy baseline should be.

LED

Use LED_BUILTIN instead of assuming pin 13setup() configures the LED as an outputloop() alternates HIGH and LOWThe ESP32-S2 may need RESET after upload

RESEARCH SIGNAL FLOWpinMode(LED_BUILTIN, OUTPUT) → HIGH → delay → LOW → repeat

MYCOTUNE USE CASES

◌ Prove the Feather accepts Arduino sketches

◌ Learn the compile-upload-reset cycle

◌ Create a known-good baseline before MycoTune hardware

◌ Reuse the LED as a visible acquisition or error indicator

NEXT BENCH STEPS

→ Connect the board with a known data-capable USB cable

→ Select the exact board and port

→ Open File → Examples → 01.Basics → Blink

→ Upload, press RESET if needed, and watch the red LED

PRIMARY RESEARCH SOURCE / Adafruit ESP32-S2 Feather Arduino guide ↗