Add RAK WisMesh Pod variant and fix Tag LPCOMP wake on user shutdown

[Ethan-chen1234-zy]

Summary

• Add [env:rak_wismesh_pod] for RAK WisMesh Pod (extends rak_wismeshtag, pin map shared).
• Pod has no user buttons: under WISMESH_POD, skip PIN_BUTTON* and set HAS_BUTTON 0.
• Fix Tag/Pod user shutdown / config reboot wake loop: port variant_enableBatteryLpcompWake() from #10918 so LPCOMP is enabled only for brownout-driven System OFF, not CLI/App shutdown.

Files changed

File	Change
rak_wismeshtag/platformio.ini	New env:rak_wismesh_pod + WISMESH_POD
rak_wismeshtag/variant.h	Disable buttons when WISMESH_POD
rak_wismeshtag/variant.cpp	LPCOMP wake only after low-VDD System OFF

Test plan

• pio run -e rak_wismeshtag
• pio run -e rak_wismesh_pod
• Tag: App/CLI config + battery ~3.4V — no reboot loop after save/shutdown
• Tag: low-VDD brownout still enters System OFF and can wake when battery recovers
• Pod: no button GPIO / no phantom button events
• Tag: button behavior unchanged

Summary by CodeRabbit

• New Features

  • Added support for the RAK WisMesh Pod board variant.
  • Updated board configuration to reflect that the WisMesh Pod does not include hardware buttons.
  • Added low-battery wake support after the device enters System OFF mode.

• Bug Fixes

  • Improved handling of low-voltage shutdown and wake behavior.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Path: .coderabbit.yaml

Review profile: CHILL

Plan: Pro Plus

Run ID: a8ccad23-21b6-4cbb-a37e-a378e3c21c34

📥 Commits

Reviewing files that changed from the base of the PR and between a3c8778 and 485579d.

📒 Files selected for processing (3)

• variants/nrf52840/rak_wismeshtag/platformio.ini
• variants/nrf52840/rak_wismeshtag/variant.cpp
• variants/nrf52840/rak_wismeshtag/variant.h

---

📝 Walkthrough

Walkthrough

Adds a WisMesh Pod PlatformIO environment, disables button definitions for that variant, and tracks low-VDD System OFF entry to control battery LPCOMP wake behavior.

Changes

WisMesh Pod support

Layer / File(s)	Summary
WisMesh Pod build and button configuration variants/nrf52840/rak_wismeshtag/platformio.ini, variants/nrf52840/rak_wismeshtag/variant.h	Adds the rak_wismesh_pod environment with the WISMESH_POD flag and defines the variant as having no buttons.
Low-VDD System OFF wake tracking variants/nrf52840/rak_wismeshtag/variant.cpp	Records when low VDD triggers System OFF and exposes that state through variant_enableBatteryLpcompWake().

Estimated code review effort: 2 (Simple) | ~10 minutes

Suggested reviewers: ndoo

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title clearly names the new RAK WisMesh Pod variant and the LPCOMP wake fix.
Description check	✅ Passed	The PR description covers the summary, file-level changes, and test plan, with only the template's attestations section omitted.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

---

Thanks for using CodeRabbit! It's free for OSS, and your support helps us grow. If you like it, consider giving us a shout-out.

❤️ Share

• X
• Mastodon
• Reddit
• LinkedIn

_{Comment @coderabbitai help to get the list of available commands.}

[github-actions]

⚡ Try this PR in the Web Flasher

Warning

This is an automated, unreviewed CI test build. Back up your device configuration
before flashing, and only flash devices you are able to recover.

Supported boards built by this PR (30)

	Device	Board	Platform
	Crowpanel Adv 3.5 TFT	elecrow-adv-35-tft	esp32-s3
	Heltec HT62	heltec-ht62-esp32c3-sx1262	esp32-c3
	Heltec Mesh Node 096	heltec-mesh-node-t096	nrf52840
	Heltec Mesh Node T1	heltec-mesh-node-t1	nrf52840
	Heltec Mesh Node T114	heltec-mesh-node-t114	nrf52840
	Heltec V3	heltec-v3	esp32-s3
	Heltec V4	heltec-v4	esp32-s3
	Meshnology W10	meshnology_w10	esp32-s3
	Raspberry Pi Pico	pico	rp2040
	Raspberry Pi Pico W	picow	rp2040
	RAK WisMesh Pocket V3	rak_wismesh_pocket	nrf52840
	RAK WisMesh Pod	rak_wismesh_pod	nrf52840
	RAK WisMesh Repeater Mini V2	rak_wismesh_repeater_mini	nrf52840
	RAK WisMesh Tag	rak_wismeshtag	nrf52840
	RAK WisBlock 11200	rak11200	esp32
	RAK WisBlock 11310	rak11310	rp2040
	RAK3312	rak3312	esp32-s3
	RAK WisBlock 4631	rak4631	nrf52840
	Seeed SenseCAP Mesh-Tracker-X1	seeed_mesh_tracker_X1	nrf52840
	Seeed Wio Tracker L1	seeed_wio_tracker_L1	nrf52840
	Seeed Xiao NRF52840 Kit	seeed_xiao_nrf52840_kit	nrf52840
	Seeed Xiao ESP32-S3	seeed-xiao-s3	esp32-s3
	Station G2	station-g2	esp32-s3
	Station G3	station-g3	esp32-s3
	LILYGO T-Deck	t-deck-tft	esp32-s3
	LILYGO T-Echo	t-echo	nrf52840
	LILYGO T-Echo Plus	t-echo-plus	nrf52840
	LILYGO T-Impulse Plus	t-impulse-plus	nrf52840
	LilyGo T3-C6	tlora-c6	esp32-c6
	Seeed SenseCAP T1000-E	tracker-t1000-e	nrf52840

Build artifacts expire on 2026-08-16. Updated for 588c8d3.

[thebentern]

@Ethan-chen1234-zy please run trunk fmt