mirror of
https://github.com/Genaker/LoraSA.git
synced 2026-05-09 23:05:01 +02:00
Egor Shitikov
47 lines
1.1 KiB
C++
47 lines
1.1 KiB
C++
#include <cstdint>
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#include <stdlib.h>
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#ifndef LORASA_CORE_H
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#define LORASA_CORE_H
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#ifdef PRINT_DEBUG
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#define LOG(args...) Serial.printf(args...)
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#define LOG_IF(cond, args...) \
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if (cond) \
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LOG(args...)
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#elif !defined(LOG)
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#define LOG(args...)
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#define LOG_IF(cond, args...)
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#endif
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// Output Pixel Formula
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// 1 = rssi / 4, 2 = (rssi / 2) - 22 or 20
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constexpr int RSSI_OUTPUT_FORMULA = 2;
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// based on the formula for RSSI_OUTPUT_FORMULA == 2
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// -2 * (22 + RADIOLIB_SX126X_SPECTRAL_SCAN_RES_SIZE) < rssi =< -44
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// practice may require a better pair of thresholds
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constexpr float HI_RSSI_THRESHOLD = -44.0;
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constexpr float LO_RSSI_THRESHOLD = HI_RSSI_THRESHOLD - 66;
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// number of samples for RSSI method
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#define SAMPLES_RSSI 12 // 21 //
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struct Scan
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{
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Scan(int sz)
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: res_size(sz), scale((float)sz / (HI_RSSI_THRESHOLD - LO_RSSI_THRESHOLD + 0.1))
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{
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}
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virtual float getRSSI();
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uint16_t rssiMethod(uint16_t *result);
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int res_size;
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float scale;
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};
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#endif
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