mirror of
https://github.com/zjs81/meshcore-open.git
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e7a5b9e209
Open-source Flutter client for MeshCore LoRa mesh networking devices. Features: - BLE device scanning and connection - Nordic UART Service (NUS) integration - Material 3 design with system theme support - Provider-based state management - Placeholder screens for chat, contacts, and settings 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
107 lines
2.6 KiB
Dart
107 lines
2.6 KiB
Dart
enum LoRaBandwidth {
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bw7_8(7800, '7.8 kHz'),
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bw10_4(10400, '10.4 kHz'),
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bw15_6(15600, '15.6 kHz'),
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bw20_8(20800, '20.8 kHz'),
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bw31_25(31250, '31.25 kHz'),
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bw41_7(41700, '41.7 kHz'),
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bw62_5(62500, '62.5 kHz'),
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bw125(125000, '125 kHz'),
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bw250(250000, '250 kHz'),
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bw500(500000, '500 kHz');
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final int hz;
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final String label;
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const LoRaBandwidth(this.hz, this.label);
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}
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enum LoRaSpreadingFactor {
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sf5(5, 'SF5'),
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sf6(6, 'SF6'),
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sf7(7, 'SF7'),
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sf8(8, 'SF8'),
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sf9(9, 'SF9'),
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sf10(10, 'SF10'),
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sf11(11, 'SF11'),
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sf12(12, 'SF12');
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final int value;
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final String label;
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const LoRaSpreadingFactor(this.value, this.label);
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}
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enum LoRaCodingRate {
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cr4_5(5, '4/5'),
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cr4_6(6, '4/6'),
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cr4_7(7, '4/7'),
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cr4_8(8, '4/8');
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final int value;
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final String label;
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const LoRaCodingRate(this.value, this.label);
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}
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class RadioSettings {
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final double frequencyMHz;
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final LoRaBandwidth bandwidth;
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final LoRaSpreadingFactor spreadingFactor;
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final LoRaCodingRate codingRate;
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final int txPowerDbm;
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RadioSettings({
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required this.frequencyMHz,
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required this.bandwidth,
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required this.spreadingFactor,
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required this.codingRate,
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required this.txPowerDbm,
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});
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// Preset configurations
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static RadioSettings get preset915MHz => RadioSettings(
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frequencyMHz: 915.0,
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bandwidth: LoRaBandwidth.bw125,
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spreadingFactor: LoRaSpreadingFactor.sf7,
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codingRate: LoRaCodingRate.cr4_5,
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txPowerDbm: 20,
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);
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static RadioSettings get preset868MHz => RadioSettings(
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frequencyMHz: 868.0,
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bandwidth: LoRaBandwidth.bw125,
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spreadingFactor: LoRaSpreadingFactor.sf7,
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codingRate: LoRaCodingRate.cr4_5,
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txPowerDbm: 14,
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);
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static RadioSettings get preset433MHz => RadioSettings(
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frequencyMHz: 433.0,
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bandwidth: LoRaBandwidth.bw125,
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spreadingFactor: LoRaSpreadingFactor.sf7,
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codingRate: LoRaCodingRate.cr4_5,
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txPowerDbm: 20,
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);
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static RadioSettings get presetLongRange => RadioSettings(
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frequencyMHz: 915.0,
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bandwidth: LoRaBandwidth.bw125,
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spreadingFactor: LoRaSpreadingFactor.sf12,
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codingRate: LoRaCodingRate.cr4_8,
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txPowerDbm: 20,
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);
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static RadioSettings get presetFastSpeed => RadioSettings(
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frequencyMHz: 915.0,
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bandwidth: LoRaBandwidth.bw500,
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spreadingFactor: LoRaSpreadingFactor.sf7,
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codingRate: LoRaCodingRate.cr4_5,
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txPowerDbm: 20,
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);
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int get frequencyHz => (frequencyMHz * 1000).round();
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int get bandwidthHz => bandwidth.hz;
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int get sf => spreadingFactor.value;
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int get cr => codingRate.value;
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}
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