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Record SolarXiao Advanced build and host validation [skip ci]
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@@ -67,6 +67,10 @@ A remotely deployed node must first receive compatible firmware before these
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commands can be used. Deployment still requires its installed target and
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bootloader compatibility to be checked when it is reachable.
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See the [Advanced profile build/host validation](test-results/solarxiao_advanced_2026-10-21.md).
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This adds no measurements beyond existing self voltage/MCU temperature and has
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not been installed on the remote Advanced board.
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## MPPT carrier commands
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Start with:
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@@ -11,6 +11,7 @@ Completed validation reports, experiments, and test guides are collected here. O
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## Radio and RF
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- [SolarXiao Advanced carrier profile build/host validation, 2026-10-21](solarxiao_advanced_2026-10-21.md)
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- [SolarXiao native MPPT and battery controls, 2026-10-21](solarxiao_power_2026-10-21.md)
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- [SolarXiao INA260 battery telemetry and carrier I2C fix, 2026-10-21](solarxiao_ina260_2026-10-21.md)
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@@ -0,0 +1,105 @@
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# SolarXiao Advanced carrier profile, 2026-10-21
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The older SolarXiao 2W Advanced already supplies battery voltage and processor
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temperature through XIAO self telemetry on channel 1. This change adds no new
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physical measurements. It adds an explicit saved carrier selection, capability
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reporting, live self-reading CLI aliases and guidance to existing history.
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The published [Advanced Standard schematic](https://github.com/wehooper4/Meshtastic-Hardware/blob/main/XaioSeries/SolarXaio/Advanced/Standard/Schematic_SolarXaio_ADV_2025-10-23.pdf)
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uses a BQ24650 analog charger. It has no INA monitor or digital charger
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interface; status LEDs, charger NTC and analog setpoints are not connected to
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XIAO measurement/control inputs. Firmware cannot recover panel V/I, battery
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current/power, battery temperature or charger flags from that design.
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Both existing `solarxiao_33S_repeater` Full and Reduced packages built and
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passed package, capability and runtime memory checks. Native host fault tests
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passed under ASan/UBSan. These are build/host results, not hardware acceptance.
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No firmware was installed on SEA Sherwood, which the user confirmed is
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unreachable. Its exact installed target, bootloader and physical revision were
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not verified. The earlier Mercerwood MPPT bench report does not qualify this
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new image on physical hardware.
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See the [controls guide](../solarxiao_power.md) and
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[machine-readable validation record](solarxiao_advanced_2026-10-21.safe.json).
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## Qualified source and packages
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| Item | Result |
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| --- | --- |
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| Application source | [`de1bb0f2e6a37b02f1a9f0995ea539c818c3abe9`](https://github.com/mikecarper/MeshCore/commit/de1bb0f2e6a37b02f1a9f0995ea539c818c3abe9) |
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| Version | `v1.18.0.1-halo-keymind-cascade-dev-de1bb0f2` |
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| Target / hardware ID | `solarxiao_33S_repeater` / `solarxiao_33S`, unchanged |
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| EndF OTA target | `0x3caf966e`, unchanged |
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| Full application | 597,816 bytes; body hash `C5339ADF076AEC89` |
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| Reduced application | 567,756 bytes; body hash `68D86AA255060031` |
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| Full memory check | PASS: 150,584 internal bytes available; 76,960 required |
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| Reduced memory check | PASS: 152,232 internal bytes available; 76,960 required |
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| DFU ZIP, UF2, linked capabilities | PASS for both profiles |
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| Linked carrier commands and history | PASS for both profiles |
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| Source changes to RF/PA, bootloader, flash layout or battery protection | None |
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Both packaged applications retain the native MPPT marker and contain the
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Advanced selector, BQ24650 capability text, live XIAO-reading response, history
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guidance and unavailable-measurement explanation. Application body hashes and
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EndF identity fields were checked independently. The build's artifact manifest
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hashes matched every published local package, UF2 and capability file.
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These packages contain compiled LoRa/Bluetooth update support. No LoRa OTA,
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boot, radio forwarding, charging or electrical test was performed for this
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image. Future deployment requires checking the destination's installed target
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and matching board/storage-aware bootloader; no remote update was attempted.
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## Host coverage
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The following checks passed:
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- 11 new carrier test methods, including the actual adapter, checked atomic
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writer and filesystem presence boundary: explicit/default selection, restart,
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corrupt/wrong-size/unreadable records, metadata errors, short writes, failed
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rename, corrupt publication, ambiguous public readback and explicit recovery.
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- Every Advanced/unconfirmed native service, read, write, action, telemetry and
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voltage-history path produced zero native bus calls. Live XIAO ADC/MCU reads
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remained available. Switching back to MPPT reloaded retained charger overrides
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and restored native readings/telemetry.
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- CLI parser boundaries, reply canaries for capacities 1..157, nonfinite/missing
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readings and history-included/omitted builds. The role passes its actual
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compiled history capability to the adapter.
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- Three existing MPPT test methods, covering eight core scenarios, real
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transport/atomic settings boundaries and telemetry permissions/channel order.
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- Six existing XIAO battery/startup/GPIO safety checks, including negative
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controls for unsafe historical GPIO sequences.
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Reproduction:
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```sh
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python3 -m unittest discover -s test -p 'test_solarxiao*.py' -v
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python3 -m unittest discover -s test -p test_xiao_battery_safety.py -v
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bash build.sh build-firmware solarxiao_33S_repeater \
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--firmware-version v1.18.0.1-halo-keymind-cascade-dev \
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--radio-preset usa-cascadia --profile cascade
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```
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PlatformIO ran once at a time; the build entry point produced Full and Reduced
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sequentially. Local packages and logs are retained under
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`/home/mesh/hwtest/solarxiao-advanced-20261021/`.
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## Using the profile after a compatible update
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```text
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set solar.board advanced
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get solar.board
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get solar capabilities
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get solar readings
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get solar history
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```
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The operator selects the board. A missing/unpowered I2C device never identifies
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Advanced automatically. The absent-record default remains MPPT for existing
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installations; a failed presence query must yield a complete valid record or
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block native access. The separately stored selection does not alter existing
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charger overrides. Selecting MPPT again re-enables and reloads those overrides.
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Channel-1 voltage and MCU temperature are unchanged. Voltage/temperature history
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remains the existing 30-minute, seven-day RAM history and resets on reboot.
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The MCU temperature is not battery temperature, and a voltage trend does not
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measure charge current, solar power or charger state.
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@@ -0,0 +1,74 @@
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{
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"passed": true,
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"scope": "host and build validation only; no device deployment or new hardware measurements",
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"source_commit": "de1bb0f2e6a37b02f1a9f0995ea539c818c3abe9",
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"target": "solarxiao_33S_repeater",
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"version": "v1.18.0.1-halo-keymind-cascade-dev-de1bb0f2",
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"new_physical_measurements": [],
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"installed_on_sea_sherwood": false,
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"tests": {
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"solarxiao_carrier": 11,
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"solarxiao_power": 3,
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"xiao_battery_safety": 6,
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"native_sanitizers": [
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"ASan",
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"UBSan"
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]
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},
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"builds": {
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"full": {
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"package": "solarxiao_33S_repeater-full-ota-v1.18.0.1-halo-keymind-cascade-dev-de1bb0f2.zip",
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"package_sha256": "90cf046d798897623fbc29edca8b401f4821fd1ef8678fedc675ffb50b387277",
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"application_bytes": 597816,
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"application_sha256": "7267fe420457c75cc4089f2709bc05683a2f73300275f8b086d8d061a5576f9a",
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"body_bytes": 597760,
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"body_hash": "C5339ADF076AEC89",
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"ota_target": "0x3caf966e",
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"hardware_id": "solarxiao_33S",
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"firmware_markers": {
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"native_power": true,
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"explicit_carrier_selector": true,
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"advanced_analog_charger": true,
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"live_self_readings": true,
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"history_guidance": true,
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"unsupported_measurements": true
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},
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"memory_passed": true,
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"available_internal_bytes": 150584,
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"required_heap_bytes": 76960,
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"capabilities_verified": true,
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"update_methods": [
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"bluetooth",
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"lora"
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],
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"uf2_sha256": "f9579f2baa72bed4e01cb452946a8c80e3cf75e48b83ab3e4f2b5dff0874137e"
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},
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"reduced": {
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"package": "solarxiao_33S_repeater-reduced-ota-v1.18.0.1-halo-keymind-cascade-dev-de1bb0f2.zip",
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"package_sha256": "9eafcb7f88bd9683b064fe6bd79a6fe7ac75430b9ec06209743c2f2b66c99af6",
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"application_bytes": 567756,
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"application_sha256": "b314bf2a940f0dbe9dde23fcaacc44b20470cd10ffe98de0e5a9fc24dad7d709",
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"body_bytes": 567700,
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"body_hash": "68D86AA255060031",
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"ota_target": "0x3caf966e",
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"hardware_id": "solarxiao_33S",
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"firmware_markers": {
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"native_power": true,
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"explicit_carrier_selector": true,
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"advanced_analog_charger": true,
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"live_self_readings": true,
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"history_guidance": true,
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"unsupported_measurements": true
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},
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"memory_passed": true,
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"available_internal_bytes": 152232,
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"required_heap_bytes": 76960,
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"capabilities_verified": true,
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"update_methods": [
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"bluetooth",
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"lora"
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],
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"uf2_sha256": "282f87c85935030ad03432d17f4201ed903d54d310dfd14981df9fb0ac35be00"
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}
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}
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}
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