Phase 1 — Hello flash¶

Prove the toolchain: build 01-hello, upload, see MAC and uptime on serial.

Firmware¶

firmware/01-hello — frozen snapshot.

1.1 Build¶

cd firmware/01-hello
pio run -e esp32-s3-n16r8

RAM:   [=         ]  13.5% (used 44360 bytes from 327680 bytes)
Flash: [=         ]  13.4% (used 875406 bytes from 6553600 bytes)
========================= [SUCCESS] Took 11.33 seconds =========================

1.2 Upload¶

pio run -e esp32-s3-n16r8 -t upload --upload-port /dev/ttyACM0

Connected to ESP32-S3 on /dev/ttyACM0:
…
Auto-detected flash size: 16MB
…
Hash of data verified.
Hard resetting via RTS pin...
========================= [SUCCESS] Took 19.60 seconds =========================

1.3 Serial¶

pio device monitor --port /dev/ttyACM0 --baud 115200

weather hello — phase 1
MAC=28:84:85:8C:D0:40
chip=ESP32-S3 flash=16MB psram=8388608 bytes
weather hello MAC=28:84:85:8C:D0:40 uptime_ms=601
weather hello MAC=28:84:85:8C:D0:40 uptime_ms=1612

Checkpoint¶

[x] Build and upload succeed
[x] Serial shows weather hello and a stable MAC
[x] Lab log

Next: Phase 2 — TFT power