feat(lora+gps): Add components for gps, sx126x lora radio. Add preliminary meshtastic component (ai-generated), and update bsps to start testing

[finger563]

Description

Motivation and Context

How has this been tested?

Screenshots (if appropriate, e.g. schematic, board, console logs, lab pictures):

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Documentation Update
• Hardware (schematic, board, system design) change
• Software change

Checklist:

• My change requires a change to the documentation.
• I have added / updated the documentation related to this change via either README or WIKI

Software

• I have added tests to cover my changes.
• I have updated the .github/workflows/build.yml file to add my new test to the automated cloud build github action.
• All new and existing tests passed.
• My code follows the code style of this project.

Hardware

• I have updated the design files (schematic, board, libraries).
• I have attached the PDFs of the SCH / BRD to this PR
• I have updated the design output (GERBER, BOM) files.

[github-actions]

⚡ Static analysis result ⚡

🔴 cppcheck found 6 issues! Click here to see details.

espp/components/meshtastic/src/meshtastic.cpp

Lines 58 to 63 in 1747d4a

	for (auto seen : seen_packets_) {
	if (seen == key) {
	return true;
	}
	}
	seen_packets_.push_back(key);

!Line: 58 - style: Consider using std::any_of algorithm instead of a raw loop. [useStlAlgorithm]

espp/components/meshtastic/src/meshtastic_protocol.cpp

Lines 60 to 65 in 1747d4a

	hash = ((hash << 5) + hash) + c; // hash * 33 + c
	}
	return hash;
	}
	uint8_t xor_hash(std::span<const uint8_t> data) {

!Line: 60 - style: Consider using std::accumulate algorithm instead of a raw loop. [useStlAlgorithm]

espp/components/meshtastic/src/meshtastic_protocol.cpp

Lines 68 to 73 in 1747d4a

	hash ^= b;
	}
	return hash;
	}
	uint8_t channel_hash(std::string_view channel_name, std::span<const uint8_t> psk) {

!Line: 68 - style: Consider using std::accumulate algorithm instead of a raw loop. [useStlAlgorithm]

espp/components/meshtastic/example/main/meshtastic_example.cpp

Lines 135 to 140 in 1747d4a

	int text_count = 0;
	auto last_nodeinfo = std::chrono::steady_clock::now();
	while (true) {
	#if CONFIG_EXAMPLE_TEXT_INTERVAL_S > 0
	std::this_thread::sleep_for(std::chrono::seconds(CONFIG_EXAMPLE_TEXT_INTERVAL_S));
	std::string message = "hello from " + std::string(CONFIG_EXAMPLE_SHORT_NAME) + " #" +

!Line: 135 - style: Variable 'text_count' is assigned a value that is never used. [unreadVariable]

espp/components/t-deck/example/main/t_deck_example.cpp

Lines 606 to 611 in 1747d4a

	out.push_back((b >= 0x20 && b < 0x7f) ? static_cast<char>(b) : '.');
	}
	return out;
	}
	static void play_click(espp::TDeck &tdeck) {

!Line: 606 - style: Consider using std::transform algorithm instead of a raw loop. [useStlAlgorithm]

espp/components/m5stack-cardputer/example/main/m5stack_cardputer_example.cpp

Lines 58 to 63 in 1747d4a

	out.push_back((b >= 0x20 && b < 0x7f) ? static_cast<char>(b) : '.');
	}
	return out;
	}
	// Synthesize a short fading sine beep and queue it on the speaker

!Line: 58 - style: Consider using std::transform algorithm instead of a raw loop. [useStlAlgorithm]

---

[Copilot]

Pull request overview

Adds a new “wireless” documentation section and introduces new gps, sx126x (LoRa radio), and preliminary meshtastic components, then wires LoRa/GPS support into the LilyGo T-Deck and M5Stack Cardputer-Adv BSPs and examples so they can be built/tested in CI.

Changes:

• Add new components: gps (UART NMEA GNSS), sx126x (SX1261/2/LLCC68 LoRa driver), meshtastic (radio-agnostic Meshtastic-compatible node + example).
• Update BSPs/examples (t-deck, m5stack-cardputer) to initialize and demonstrate LoRa + GPS (plus shared-bus handling on the Cardputer Cap).
• Update docs (new doc/en/wireless/*) and CI/component publishing lists to include the new components and examples.

Reviewed changes

Copilot reviewed 68 out of 68 changed files in this pull request and generated 9 comments.

Show a summary per file

File	Description
doc/en/wireless/index.rst	Introduces the “Wireless & Radio APIs” doc section and links new wireless component pages.
doc/en/wireless/sx126x.rst	Adds SX126x component documentation entry and API include hooks.
doc/en/wireless/gps.rst	Adds GPS component documentation entry and API include hooks.
doc/en/wireless/meshtastic.rst	Adds Meshtastic component documentation entry and API include hooks.
doc/en/index.rst	Adds the wireless docs section to the top-level docs index.
doc/Doxyfile	Adds new components’ headers/examples to Doxygen inputs/example paths.
components/sx126x/CMakeLists.txt	Registers the sx126x component build.
components/sx126x/include/sx126x.hpp	Defines the public SX126x driver API/types/config.
components/sx126x/src/sx126x.cpp	Implements the SX126x driver (SPI command layer + LoRa modem support).
components/sx126x/README.md	Adds SX126x component overview and feature list.
components/sx126x/idf_component.yml	Adds SX126x component manager metadata (deps/tags/docs link).
components/sx126x/example/CMakeLists.txt	Adds SX126x example project configuration.
components/sx126x/example/sdkconfig.defaults	Adds SX126x example default sdkconfig.
components/sx126x/example/README.md	Adds SX126x example usage documentation.
components/sx126x/example/main/CMakeLists.txt	Registers the SX126x example “main” component.
components/sx126x/example/main/Kconfig.projbuild	Adds SX126x example menuconfig options (hardware/pins/frequency/etc.).
components/sx126x/example/main/sx126x_example.cpp	Adds SX126x example app (bring-up + RX + periodic TX ping).
components/gps/CMakeLists.txt	Registers the gps component build.
components/gps/include/gps.hpp	Defines the UART-attached GPS driver public API.
components/gps/include/nmea_parser.hpp	Defines the platform-independent NMEA parser API.
components/gps/include/gps_fix.hpp	Defines the parsed fix struct and timestamp conversion helper.
components/gps/src/gps.cpp	Implements the UART driver + background read/parsing task.
components/gps/src/nmea_parser.cpp	Implements NMEA parsing/checksum and fix extraction.
components/gps/README.md	Adds GPS component overview and capabilities.
components/gps/idf_component.yml	Adds GPS component manager metadata (deps/tags/docs link).
components/gps/example/CMakeLists.txt	Adds GPS example project configuration.
components/gps/example/sdkconfig.defaults	Adds GPS example default sdkconfig.
components/gps/example/README.md	Adds GPS example usage documentation.
components/gps/example/main/CMakeLists.txt	Registers the GPS example “main” component.
components/gps/example/main/Kconfig.projbuild	Adds GPS example menuconfig options (hardware/pins/baud).
components/gps/example/main/gps_example.cpp	Adds GPS example app (print fixes).
components/meshtastic/CMakeLists.txt	Registers the meshtastic component build.
components/meshtastic/include/meshtastic.hpp	Defines MeshtasticNode public API/config/callbacks.
components/meshtastic/include/meshtastic_types.hpp	Adds protocol constants and message structs.
components/meshtastic/include/meshtastic_protocol.hpp	Declares channel hashing/modem config/header pack/unpack helpers.
components/meshtastic/include/meshtastic_crypto.hpp	Declares PSK expansion and AES-CTR payload crypt helpers.
components/meshtastic/include/meshtastic_protobuf.hpp	Declares minimal protobuf encode/decode helpers for used messages.
components/meshtastic/src/meshtastic.cpp	Implements node behavior (send/receive/dedup/rebroadcast).
components/meshtastic/src/meshtastic_protocol.cpp	Implements region/preset-based modem config + header pack/unpack + hashes.
components/meshtastic/src/meshtastic_crypto.cpp	Implements PSK expansion and AES-CTR crypt via mbedtls.
components/meshtastic/src/meshtastic_protobuf.cpp	Implements minimal protobuf wire-format encode/decode for required messages.
components/meshtastic/README.md	Adds Meshtastic component overview/scope/licensing notes.
components/meshtastic/idf_component.yml	Adds Meshtastic component manager metadata (deps/tags/docs link).
components/meshtastic/example/CMakeLists.txt	Adds Meshtastic example project configuration.
components/meshtastic/example/sdkconfig.defaults	Adds Meshtastic example default sdkconfig.
components/meshtastic/example/README.md	Adds Meshtastic example usage documentation.
components/meshtastic/example/main/CMakeLists.txt	Registers the Meshtastic example “main” component.
components/meshtastic/example/main/Kconfig.projbuild	Adds Meshtastic example menuconfig options (hardware/region/intervals/etc.).
components/meshtastic/example/main/meshtastic_example.cpp	Adds Meshtastic node example using BSP-provided SX1262 radio.
components/t-deck/CMakeLists.txt	Adds gps/sx126x to T-Deck component requirements.
components/t-deck/idf_component.yml	Adds gps/sx126x dependencies to the T-Deck component manifest.
components/t-deck/include/t-deck.hpp	Adds LoRa + GPS APIs/pins/state to the T-Deck BSP.
components/t-deck/src/lora.cpp	Implements T-Deck LoRa + GPS initialization.
components/t-deck/example/README.md	Updates T-Deck example docs to include LoRa demo behavior.
components/t-deck/example/main/t_deck_example.cpp	Adds LoRa tab/demo wiring and non-blocking TX dispatch via main loop.
components/t-deck/example/main/gui.hpp	Extends T-Deck example GUI API to support a LoRa tab and logging.
components/t-deck/example/main/gui.cpp	Implements the new LoRa tab UI and thread-safe message/status updates.
components/m5stack-cardputer/CMakeLists.txt	Adds gps/sx126x to Cardputer component requirements.
components/m5stack-cardputer/idf_component.yml	Adds gps/sx126x dependencies to the Cardputer component manifest.
components/m5stack-cardputer/include/m5stack-cardputer.hpp	Adds LoRa+GPS Cap APIs/pins/state and new helper methods.
components/m5stack-cardputer/src/lora_gps_cap.cpp	Implements LoRa+GPS Cap SPI-bus bring-up and LoRa/GPS initialization.
components/m5stack-cardputer/src/sdcard.cpp	Adjusts SD init to reuse the shared expansion SPI bus when LoRa is present.
components/m5stack-cardputer/example/README.md	Updates Cardputer example docs for new tabbed UI + LoRa/GPS features.
components/m5stack-cardputer/example/main/m5stack_cardputer_example.cpp	Wires LoRa+GPS demos into the example and updates tab/shortcut behavior.
components/m5stack-cardputer/example/main/gui.hpp	Refactors Cardputer GUI into tabbed layout with LoRa/GPS/Sys tabs.
components/m5stack-cardputer/example/main/gui.cpp	Implements tabbed UI, LoRa log/status rendering, and new per-tab helpers.
.github/workflows/build.yml	Adds gps/meshtastic/sx126x examples to CI build matrix.
.github/workflows/upload_components.yml	Adds gps/meshtastic/sx126x to component upload list.