480 lines
13 KiB
Markdown
480 lines
13 KiB
Markdown
# Run Config Reference
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`run_config.json` is the stable runtime configuration consumed by the GUI,
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Python helpers, and C++ pipeline binaries. The active file is normally
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`run_config.json`; root-level `*.example.json` files are templates.
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JSON does not support comments. Keep notes in docs, not inside config files.
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## Top-Level Sections
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```json
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{
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"radar": {},
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"switches": {},
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"run": {},
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"preprocess": {},
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"gpr": {},
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"rings": {}
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}
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```
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## `radar`
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Selects the radar model and sweep settings.
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```json
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"radar": {
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"model": "compact_m_k209",
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"serial": "",
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"remote_host": "127.0.0.1",
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"remote_port": 50209,
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"driver_mode": "native",
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"mock_signal_hz": 5000000.0,
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"multi_device": {},
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"kamil_adc": {},
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"laser_control": {},
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"sweep": {}
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}
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```
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Fields:
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| Field | Meaning |
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| --- | --- |
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| `model` | `librevna`, `librevna_multi`, `compact_m_k209`, `sn9000`, or `kamil_adc`. |
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| `serial` | LibreVNA serial. Empty means first device for single LibreVNA. For `librevna_multi`, this is the master serial. Unused by `compact_m_k209` and `sn9000`. |
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| `remote_host` | SCPI server host. For `compact_m_k209` it is the K209 relay server host; for `sn9000` it is the SNVNA HiSLIP host. Ignored by LibreVNA modes. |
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| `remote_port` | SCPI server TCP port. Default `50209` for `compact_m_k209` (relay), `4880` for `sn9000` (SNVNA HiSLIP). |
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| `driver_mode` | `native` for hardware, `mock` for supported synthetic LibreVNA modes. K209, SN9000, and Kamil ADC require `native`. |
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| `mock_signal_hz` | Existing LibreVNA mock signal parameter used by C++ mock acquisition. |
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| `multi_device` | Extra settings for `librevna_multi`. |
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| `kamil_adc` | External collector process and TTY settings for `kamil_adc`. |
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| `laser_control` | Laser board settings applied before `kamil_adc` collection starts. |
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| `sweep` | Frequency, point count, IFBW, and power settings. |
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### `radar.sweep`
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```json
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"sweep": {
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"start_hz": 1000000.0,
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"stop_hz": 6000000000.0,
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"points": 201,
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"if_bandwidth_hz": 50000.0,
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"stimulus_power_dbm": -10.0
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}
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```
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Fields:
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| Field | Meaning |
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| --- | --- |
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| `start_hz` | Sweep start frequency in Hz. |
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| `stop_hz` | Sweep stop frequency in Hz. Must be `>= start_hz`. |
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| `points` | Number of frequency points. |
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| `if_bandwidth_hz` | IF bandwidth in Hz. |
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| `stimulus_power_dbm` | Output power in dBm. |
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K209 limits reported by the tested device:
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```text
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frequency_hz: 9000 .. 9000000000
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ifbw_hz: 1 .. 300000
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power_dbm: -55 .. +5
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points: 2 .. 500001
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```
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### `radar.multi_device`
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Used only when `radar.model == "librevna_multi"`.
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```json
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"multi_device": {
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"slave_serials": [
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"SLAVE_SERIAL_1",
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"SLAVE_SERIAL_2"
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],
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"force_external_reference": true,
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"recovery_attempts": 3
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}
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```
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Fields:
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| Field | Meaning |
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| --- | --- |
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| `slave_serials` | Exactly two slave LibreVNA serials. |
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| `force_external_reference` | Configure the synchronized external reference path. |
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| `recovery_attempts` | Reopen/retry attempts after native multi-device acquisition errors. |
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### `radar.kamil_adc`
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Used only when `radar.model == "kamil_adc"`.
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```json
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"kamil_adc": {
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"project_dir": "/home/europa/Documents/kamil_adc",
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"executable_path": "/home/europa/Documents/kamil_adc/kamil_adc_capture",
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"tty_path": "/tmp/ttyADC_data",
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"args": [
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"profile:phase",
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"clock:internal",
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"internal_ref_hz:2000000",
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"mode:diff",
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"channels:2",
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"ch1:2",
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"ch2:3",
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"do1_toggle_per_frame",
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"do1_pair_subtract_avg"
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],
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"env": {},
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"startup_timeout_s": 5.0,
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"sweep_timeout_s": 5.0,
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"stop_timeout_s": 2.0
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}
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```
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Fields:
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| Field | Meaning |
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| --- | --- |
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| `project_dir` | Working directory for the external ADC collector. Required. |
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| `executable_path` | Full path to the Raspberry Pi executable. Required; no filename is assumed. |
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| `tty_path` | TTY stream path, for example `/tmp/ttyADC_data`. The producer appends `tty:<tty_path>`. |
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| `args` | Explicit collector arguments, excluding any `tty:` argument. |
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| `env` | Extra environment variables for the collector process. |
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| `startup_timeout_s` | Time allowed for the collector to create a fresh TTY path. |
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| `sweep_timeout_s` | Time allowed to receive one full sweep packet. |
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| `stop_timeout_s` | Graceful stop timeout before killing the collector process. |
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The TTY frame format is strict: packet start is `0x000A 0xFFFF 0xFFFF 0xFFFF`,
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then each sweep point is `0x000A step data1 data2`. Steps must arrive as
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`1..N`; `N` is derived from the stream when the next packet start arrives.
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`radar.sweep.points` is not used by the Kamil ADC producer. `S21` is
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`data1 + j*data2`; `S11` is stored as explicit zeros.
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### `radar.laser_control`
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Used with `kamil_adc` when the laser board must be configured before ADC
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collection starts. `laser_control` and `kamil_adc` are one hardware
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configuration unit: changing either section requires restarting acquisition.
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```json
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"laser_control": {
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"enabled": true,
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"port": "/dev/ttyUSB0",
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"mode": "variation",
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"pi_coeff1_p": 2560,
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"pi_coeff1_i": 128,
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"pi_coeff2_p": 2560,
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"pi_coeff2_i": 128,
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"manual": {
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"temp1": 25.0,
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"temp2": 25.0,
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"current1": 30.0,
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"current2": 30.0
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},
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"variation": {
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"variation_type": "CHANGE_CURRENT_LD1",
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"static_temp1": 28.0,
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"static_temp2": 28.9,
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"static_current1": 33.0,
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"static_current2": 35.0,
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"min_value": 33.0,
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"max_value": 60.0,
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"step": 0.05,
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"time_step": 50,
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"delay_time": 10
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}
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}
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```
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`mode="manual"` uses `manual`. `mode="variation"` uses `variation`.
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`variation_type` is the enum name from `laser_control`, for example
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`CHANGE_CURRENT_LD1` or `CHANGE_TEMPERATURE_LD2`.
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## `switches`
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Two RF switch sections are used:
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```json
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"switches": {
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"port1": {},
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"port2": {}
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}
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```
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By convention in the C++ pipeline:
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```text
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port1 -> output switch
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port2 -> input switch
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```
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Switch fields:
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| Field | Meaning |
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| --- | --- |
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| `name` | Human-readable switch name. |
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| `driver_mode` | `native` for GPIO, `mock` to avoid GPIO access. |
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| `driver` | `h7992` or `hmc349a`. |
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| `radar_port` | Physical radar port mapping, must be unique and either `1` or `2`. |
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| `positions` | Number of switch positions. |
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| `default_position` | Position selected on open. Zero-based. |
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| `gpio_chip` | Linux GPIO chip path, usually `/dev/gpiochip0`. |
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| `pin_a` | First GPIO control pin. |
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| `pin_b` | Second GPIO control pin for `h7992`. |
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| `invert_logic` | Logic inversion for supported switch drivers. |
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Use mock switches on a laptop without GPIO:
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```json
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"driver_mode": "mock"
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```
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## `control_button`
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Optional physical GPIO push-button that triggers a runtime action on press.
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The watcher runs in both GUI and headless modes (it is attached to the main
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window, which both launch paths build). On press it reuses the existing
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"Capture Tmp Reference" flow: stop the pipeline, capture a fresh tmp S21
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reference with the current sweep settings, then restart the pipeline if it had
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been running.
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```json
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"control_button": {
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"enabled": true,
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"gpio_chip": "/dev/gpiochip0",
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"pin": 26,
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"active_low": true,
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"bias": "",
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"debounce_ms": 50,
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"action": "capture_tmp_reference"
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}
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```
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| Field | Meaning |
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| --- | --- |
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| `enabled` | Master switch. When `false` (default) no GPIO line is opened, so non-Pi hosts are unaffected. |
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| `gpio_chip` | Linux GPIO chip path, usually `/dev/gpiochip0`. |
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| `pin` | BCM line offset of the button. `26` is physical pin 37, with GND on physical pin 39. |
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| `active_low` | `true` for a button wired to GND with the internal pull-up: the line idles high and a press is detected on the falling edge. `false` mirrors this for a button wired to 3V3 with a pull-down (rising edge). |
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| `bias` | Internal bias override: `pull_up`, `pull_down`, or `disabled`. Empty (default) derives the bias from `active_low`. |
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| `debounce_ms` | Hardware debounce period applied by the kernel, in milliseconds. |
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| `action` | Action to run on press. Currently only `capture_tmp_reference`. |
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Occupied BCM lines (native switches) are `17`, `22`, `23`, `27`; pick a free
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line such as `16`, `20`, `21`, or `26` for the button. A failure to open the
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line (missing chip, line already in use) is logged as a warning and never
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aborts startup.
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## `run`
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Runtime behavior and combo selection.
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```json
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"run": {
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"settling_ms": 0,
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"idle_sleep_ms": 2,
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"continuous": true,
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"processing_live_config_path": "python_app/runtime/processing_live.json",
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"locator_server": {},
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"combos": [
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{"input": 0, "output": 0}
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]
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}
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```
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Fields:
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| Field | Meaning |
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| --- | --- |
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| `settling_ms` | Delay after switching before measuring. |
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| `idle_sleep_ms` | Sleep between continuous collections. |
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| `continuous` | `true` loops until stopped; `false` captures one collection and exits. |
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| `processing_live_config_path` | Runtime path used by processing live settings. |
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| `locator_server` | Embedded TCP server settings for publishing locator results. |
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| `combos` | Zero-based switch combinations to acquire. |
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`combos` entries use input/output switch positions:
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```json
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{"input": 2, "output": 1}
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```
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For `librevna_multi` and `sn9000`, the model constraints force the canonical
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virtual matrix:
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```text
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input: 0..3
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output: 0..1
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```
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## `run.locator_server`
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Settings for the embedded locator result TCP server.
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| Field | Meaning |
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| --- | --- |
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| `device_id` | Device identifier in locator payloads. |
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| `protocol_version` | Locator payload protocol version. |
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| `host` | Bind host, commonly `0.0.0.0`. |
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| `port` | TCP port, commonly `8888`. |
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| `max_payload_bytes` | Maximum result payload size. |
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| `client_queue_size` | Per-client queue size. |
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| `logger_name` | Logger name used by the service. |
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## `preprocess`
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Names or bundle paths for calibration/reference assets used by preprocessing.
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```json
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"preprocess": {
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"s21": {
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"calibration": {"set_name": "", "bundle_path": ""},
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"reference": {"set_name": "", "bundle_path": ""}
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},
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"s11": {
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"calibration": {
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"open": {"set_name": "", "bundle_path": ""},
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"short": {"set_name": "", "bundle_path": ""},
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"load": {"set_name": "", "bundle_path": ""}
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},
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"reference": {"set_name": "", "bundle_path": ""}
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},
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"notch": {
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"enabled": true,
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"bands_hz": [],
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"taper_width_hz": 40000000.0,
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"taper_type": "cosine"
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}
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}
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```
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`set_name` selects a stored set for the active radar key. `bundle_path` can
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point to an exported bundle. Empty values mean no asset is selected.
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`notch.bands_hz` is a list of `[low_hz, high_hz]` ranges. `taper_type` is
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`cosine` or `hard`.
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## `gpr`
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GPR geometry and processing configuration.
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```json
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"gpr": {
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"relative_permittivity": 1.0,
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"tx_geometry": [
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{"output_pos": 0, "x_m": 0.905}
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],
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"rx_geometry": [
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{"input_pos": 0, "x_m": -0.18}
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]
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}
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```
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Fields:
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| Field | Meaning |
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| --- | --- |
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| `relative_permittivity` | Medium relative permittivity used for propagation speed. |
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| `tx_geometry` | Transmitter positions keyed by output switch position. |
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| `rx_geometry` | Receiver positions keyed by input switch position. |
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Geometry positions must match configured switch positions. For example, an
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`output_pos` of `1` requires the output switch to have at least 2 positions.
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## `rings`
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Shared-memory ring endpoints used by native processes.
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```json
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"rings": {
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"raw": {"name": "/radar_raw", "capacity": 50, "slot_size_bytes": 2097152},
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"raw_tap": {"name": "/radar_raw_tap", "capacity": 50, "slot_size_bytes": 2097152},
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"preprocessed": {"name": "/radar_preprocessed", "capacity": 50, "slot_size_bytes": 2097152},
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"preprocessed_tap": {"name": "/radar_preprocessed_tap", "capacity": 50, "slot_size_bytes": 2097152},
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"results": {"name": "/radar_results", "capacity": 50, "slot_size_bytes": 2097152}
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}
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```
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Fields:
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| Field | Meaning |
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| --- | --- |
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| `name` | POSIX shared-memory object name. |
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| `capacity` | Number of slots. |
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| `slot_size_bytes` | Maximum serialized payload size per slot. |
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Use unique ring names for parallel tests to avoid collisions with a running GUI
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session.
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## Minimal Model Examples
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Single LibreVNA:
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```json
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"radar": {
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"model": "librevna",
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"serial": "",
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"driver_mode": "native"
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}
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```
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Multi-device LibreVNA:
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```json
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"radar": {
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"model": "librevna_multi",
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"serial": "MASTER_SERIAL",
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"driver_mode": "native",
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"multi_device": {
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"slave_serials": ["SLAVE_1", "SLAVE_2"],
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"force_external_reference": true,
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"recovery_attempts": 3
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}
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}
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```
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Compact-M K209 via remote server:
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```json
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"radar": {
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"model": "compact_m_k209",
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"remote_host": "192.168.1.10",
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"remote_port": 50209,
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"driver_mode": "native"
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}
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```
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SN9000 (PLANAR Иридиум) via SNVNA HiSLIP:
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```json
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"radar": {
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"model": "sn9000",
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"remote_host": "192.168.1.10",
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"remote_port": 4880,
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"driver_mode": "native"
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}
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```
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Kamil ADC:
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```json
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"radar": {
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"model": "kamil_adc",
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"serial": "kamil_adc",
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"driver_mode": "native",
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"kamil_adc": {
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"project_dir": "/home/europa/Documents/kamil_adc",
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"executable_path": "/home/europa/Documents/kamil_adc/kamil_adc_capture",
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"tty_path": "/tmp/ttyADC_data"
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},
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"laser_control": {
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"enabled": true,
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"port": "/dev/ttyUSB0",
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"mode": "variation"
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}
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}
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```
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