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J. Nick Koston 2025-07-05 14:28:26 -05:00
parent a5ee047efb
commit 3d6a1811c5
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1 changed files with 15 additions and 13 deletions
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28
esphome/components/ld2450/ld2450.h
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@ -167,26 +167,28 @@ class LD2450Component : public Component, public uart::UARTDevice {
std::string mac_{}; std::string mac_{};
// Change detection - cache previous values to avoid redundant publishes // Change detection - cache previous values to avoid redundant publishes
// All values are initialized to sentinel values that are outside the valid sensor ranges
// to ensure the first real measurement is always published
struct CachedTargetData { struct CachedTargetData {
int16_t x = std::numeric_limits<int16_t>::min(); int16_t x = std::numeric_limits<int16_t>::min(); // -32768, outside range of -4860 to 4860
int16_t y = std::numeric_limits<int16_t>::min(); int16_t y = std::numeric_limits<int16_t>::min(); // -32768, outside range of 0 to 7560
int16_t speed = std::numeric_limits<int16_t>::min(); int16_t speed = std::numeric_limits<int16_t>::min(); // -32768, outside practical sensor range
uint16_t resolution = std::numeric_limits<uint16_t>::max(); uint16_t resolution = std::numeric_limits<uint16_t>::max(); // 65535, unlikely resolution value
uint16_t distance = std::numeric_limits<uint16_t>::max(); uint16_t distance = std::numeric_limits<uint16_t>::max(); // 65535, outside range of 0 to ~8990
float angle = NAN; float angle = NAN; // NAN, safe sentinel for floats
std::string direction = ""; std::string direction = ""; // Empty string, will differ from any real direction
} cached_target_data_[MAX_TARGETS]; } cached_target_data_[MAX_TARGETS];
struct CachedZoneData { struct CachedZoneData {
uint8_t still_count = std::numeric_limits<uint8_t>::max(); uint8_t still_count = std::numeric_limits<uint8_t>::max(); // 255, unlikely zone count
uint8_t moving_count = std::numeric_limits<uint8_t>::max(); uint8_t moving_count = std::numeric_limits<uint8_t>::max(); // 255, unlikely zone count
uint8_t total_count = std::numeric_limits<uint8_t>::max(); uint8_t total_count = std::numeric_limits<uint8_t>::max(); // 255, unlikely zone count
} cached_zone_data_[MAX_ZONES]; } cached_zone_data_[MAX_ZONES];
struct CachedGlobalData { struct CachedGlobalData {
uint8_t target_count = std::numeric_limits<uint8_t>::max(); uint8_t target_count = std::numeric_limits<uint8_t>::max(); // 255, max 3 targets possible
uint8_t still_count = std::numeric_limits<uint8_t>::max(); uint8_t still_count = std::numeric_limits<uint8_t>::max(); // 255, max 3 targets possible
uint8_t moving_count = std::numeric_limits<uint8_t>::max(); uint8_t moving_count = std::numeric_limits<uint8_t>::max(); // 255, max 3 targets possible
} cached_global_data_; } cached_global_data_;
#ifdef USE_NUMBER #ifdef USE_NUMBER