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Added support for Spreading Factors 5 and 6 on compatible radios (#10160)

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This commit is contained in:
Jennifer Sanchez
2026-04-14 20:11:36 +02:00
committed by Ben Meadors
parent a8a5315460
commit 5f836cdf3b
1 changed files with 7 additions and 2 deletions
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9
src/mesh/MeshRadio.h
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@@ -4,6 +4,7 @@
#include "MeshTypes.h"
#include "PointerQueue.h"
#include "configuration.h"
#include "detect/LoRaRadioType.h"
// Map from old region names to new region enums
struct RegionInfo {
@@ -25,7 +26,7 @@ extern const RegionInfo *myRegion;
extern void initRegion();
// Valid LoRa spread factor range and defaults
constexpr uint8_t LORA_SF_MIN = 7;
constexpr uint8_t LORA_SF_MIN = 5;
constexpr uint8_t LORA_SF_MAX = 12;
constexpr uint8_t LORA_SF_DEFAULT = 11; // LONG_FAST default
@@ -37,10 +38,14 @@ constexpr uint8_t LORA_CR_DEFAULT = 5; // LONG_FAST default
// Default bandwidth in kHz (LONG_FAST)
constexpr float LORA_BW_DEFAULT_KHZ = 250.0f;
/// Clamp spread factor to the valid LoRa range [7, 12].
/// Clamp spread factor to the valid LoRa range [5, 12].
/// Out-of-range values (including 0 from unset preset mode) return LORA_SF_DEFAULT.
static inline uint8_t clampSpreadFactor(uint8_t sf)
{
// We check for RF95 radios that are incompatible with Spreading Factors 5 and 6.
if (radioType == RF95_RADIO && (sf == 5 || sf == 6))
return LORA_SF_DEFAULT;
if (sf < LORA_SF_MIN || sf > LORA_SF_MAX)
return LORA_SF_DEFAULT;
return sf;