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LoraSA/src/main.cpp

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/**
RadioLib SX126x Spectrum Scan
This code perform a spectrum power scan using SX126x.
The output is in the form of scan lines, each line has 33 power bins.
First power bin corresponds to -11 dBm, the second to -15 dBm and so on.
Higher number of samples in a bin corresponds to more power received
at that level.
To show the results in a plot, run the Python script
RadioLib/extras/SX126x_Spectrum_Scan/SpectrumScan.py
WARNING: This functionality is experimental and requires a binary patch
to be uploaded to the SX126x device. There may be some undocumented
side effects!
For default module settings, see the wiki page
https://github.com/jgromes/RadioLib/wiki/Default-configuration#sx126x---lora-modem
For full API reference, see the GitHub Pages
https://jgromes.github.io/RadioLib/
*/
// #define HELTEC_NO_DISPLAY
#include "FS.h"
#include <Arduino.h>
#include <ArduinoJson.h>
#include <AsyncTCP.h>
#include <ESPAsyncWebServer.h>
#include <File.h>
#include <LittleFS.h>
#include <freertos/FreeRTOS.h>
#include <freertos/task.h>
#include "WIFI_SERVER.h"
#define FORMAT_LITTLEFS_IF_FAILED true
// #define OSD_ENABLED true
// #define WIFI_SCANNING_ENABLED true
// #define BT_SCANNING_ENABLED true
// Direct access to the low-level SPI communication between RadioLib and the radio module.
#define RADIOLIB_LOW_LEVEL (1)
// In this mode, all methods and member variables of all RadioLib classes will be made
// public and so will be exposed to the user. This allows direct manipulation of the
// library internals.
#define RADIOLIB_GODMODE (1)
#define RADIOLIB_CHECK_PARAMS (0)
#include <charts.h>
#include <comms.h>
#include <config.h>
#include <events.h>
#include <scan.h>
#include <stdlib.h>
#ifndef LILYGO
#include <heltec_unofficial.h>
// This file contains a binary patch for the SX1262
#include "modules/SX126x/patches/SX126x_patch_scan.h"
#endif // end ifndef LILYGO
#if defined(LILYGO)
// LiLyGO device does not support the auto download mode, you need to get into the
// download mode manually. To do so, press and hold the BOOT button and then press the
// RESET button once. After that release the BOOT button. Or OFF->ON together with BOOT
// Default LilyGO code
#include <LoRaBoards.h>
// #include "utilities.h"
// Our Code
#include "LiLyGo.h"
#endif // end LILYGO
#define BT_SCAN_DELAY 60 * 1 * 1000
#define WF_SCAN_DELAY 60 * 2 * 1000
long noDevicesMillis = 0, cycleCnt = 0;
bool present = false;
bool scanFinished = true;
// time to scan BT
#define BT_SCAN_TIME 10
uint64_t wf_start = 0;
uint64_t bt_start = 0;
#define MAX_POWER_LEVELS 33
#ifdef OSD_ENABLED
#include "DFRobot_OSD.h"
#define OSD_SIDE_BAR true
// SPI pins
#define OSD_CS 47
#define OSD_MISO 33
#define OSD_MOSI 34
#define OSD_SCK 26
#endif
#define OSD_WIDTH 30
#define OSD_HEIGHT 16
#define OSD_CHART_WIDTH 15
#define OSD_CHART_HEIGHT 5
#define OSD_X_START 1
#define OSD_Y_START 16
// TODO: Calculate dynamically:
// osd_steps = osd_mhz_in_bin / (FM range / LORA radio x Steps)
int osd_mhz_in_bin = 5;
int osd_steps = 12;
int global_counter = 0;
#ifdef OSD_ENABLED
DFRobot_OSD osd(OSD_CS);
#endif
#include "global_config.h"
#include "ui.h"
// -----------------------------------------------------------------
// CONFIGURATION OPTIONS
// -----------------------------------------------------------------
typedef enum
{
METHOD_RSSI = 0u,
METHOD_SPECTRAL
} TSCAN_METOD_ENUM;
// #define SCAN_METHOD METHOD_SPECTRAL
#define SCAN_METHOD
// #define METHOD_SPECTRAL // Spectral scan method
#define METHOD_RSSI // Uncomment this and comment METHOD_SPECTRAL fot RSSI
// Output Pixel Formula
// 1 = rssi / 4, 2 = (rssi / 2) - 22 or 20
// constexpr int RSSI_OUTPUT_FORMULA = 2;
// Feature to scan diapasones. Other frequency settings will be ignored.
// int SCAN_RANGES[] = {850890, 920950};
int SCAN_RANGES[] = {};
// MHZ per page
// to put everything into one page set RANGE_PER_PAGE = FREQ_END - 800
uint64_t RANGE_PER_PAGE; // FREQ_END - CONF_FREQ_BEGIN
uint64_t CONF_FREQ_END, CONF_FREQ_BEGIN; // To Enable Multi Screen scan
// uint64_t RANGE_PER_PAGE = 50;
// Default Range on Menu Button Switch
// multiplies STEPS * N to increase scan resolution.
#define SCAN_RBW_FACTOR 2
#ifdef USING_SX1280PA
#define SCAN_RBW_FACTOR 2
#endif
constexpr int OSD_PIXELS_PER_CHAR = (STEPS * SCAN_RBW_FACTOR) / OSD_CHART_WIDTH;
#define DEFAULT_RANGE_PER_PAGE 50
// Print spectrum values pixels at once or by line
bool ANIMATED_RELOAD = false;
// TODO: Ignore max power lines
#define UP_FILTER 5
// Trim low signals - nose level
#define START_LOW 6
#define FILTER_SAMPLES_MIN
constexpr bool DRAW_DETECTION_TICKS = true;
int16_t max_x_rssi[STEPS] = {999};
int16_t max_x_window[STEPS / 14] = {999};
int x_window = 0;
constexpr int WINDOW_SIZE = 15;
// Number of samples for each frequency scan. Fewer samples = better temporal resolution.
// if more than 100 it can freeze
#define SAMPLES 35 //(scan time = 1294)
uint64_t RANGE, range, iterations, median_frequency;
float SINGLE_STEP;
// #define DISABLE_PLOT_CHART false // unused
// Array to store the scan results
uint16_t result[RADIOLIB_SX126X_SPECTRAL_SCAN_RES_SIZE];
bool filtered_result[RADIOLIB_SX126X_SPECTRAL_SCAN_RES_SIZE];
int max_bins_array_value[MAX_POWER_LEVELS];
int max_step_range = 32;
bool detected_y[STEPS]; // 20 - ??? steps
// global variable
// Used as a Led Light and Buzzer/count trigger
bool first_run, new_pixel, detected_x = false;
// drone detection flag
bool detected = false;
uint64_t drone_detection_level = DEFAULT_DRONE_DETECTION_LEVEL;
#define TRIGGER_LEVEL -80.0
uint64_t drone_detected_frequency_start = 0;
uint64_t drone_detected_frequency_end = 0;
bool single_page_scan = false;
// #define PRINT_DEBUG
#define PRINT_PROFILE_TIME
#ifdef PRINT_PROFILE_TIME
uint64_t loop_start = 0;
uint64_t loop_time = 0;
uint64_t scan_time = 0;
uint64_t scan_start_time = 0;
#endif
// log data via serial console, JSON format:
// #define LOG_DATA_JSON true
// #define WEB_SERVER true
uint64_t x, y, range_item, w = WATERFALL_START, i = 0;
int osd_x = 1, osd_y = 2, col = 0, max_bin = 32;
uint64_t ranges_count = 0;
int rssi = 0;
int state = 0;
int CONF_SAMPLES;
#ifdef METHOD_SPECTRAL
int samples = SAMPLES;
#endif
#ifdef METHOD_RSSI
int samples = SAMPLES_RSSI;
#endif
uint8_t result_index = 0;
uint8_t button_pressed_counter = 0;
#ifndef LILYGO
// #define JOYSTICK_ENABLED
#endif
#include "joyStick.h"
// project components
#if (defined(WIFI_SCANNING_ENABLED) || defined(BT_SCANNING_ENABLED)) && \
defined(OSD_ENABLED)
#include "BT_WIFI_scan.h"
#endif
#if defined(WIFI_SCANNING_ENABLED) && defined(OSD_ENABLED)
scanWiFi(osd)
#endif
#if defined(BT_SCANNING_ENABLED) && defined(OSD_ENABLED)
scanBT(osd)
#endif
#ifdef OSD_ENABLED
unsigned short selectFreqChar(int bin, int start_level = 0)
{
if (bin >= start_level)
{
// level when we are starting show levels symbols
// you can override with your own character for example 0x100 = " " empty char
return power_level[33];
}
else if (bin >= 0 && bin < MAX_POWER_LEVELS)
return power_level[bin];
// when wrong bin number or noc har assigned we are showing "!" char
return 0x121;
}
void osdPrintSignalLevelChart(int col, int signal_value)
{
// Third line
if (signal_value <= 9 && signal_value <= drone_detection_level)
{
osd.displayChar(13, col + 2, 0x100);
osd.displayChar(14, col + 2, 0x100);
osd.displayChar(12, col + 2, selectFreqChar(signal_value, drone_detection_level));
}
// Second line
else if (signal_value < 19 && signal_value <= drone_detection_level)
{
osd.displayChar(12, col + 2, 0x100);
osd.displayChar(14, col + 2, 0x100);
osd.displayChar(13, col + 2, selectFreqChar(signal_value, drone_detection_level));
}
// First line
else
{
// Clean Up symbol
osd.displayChar(12, col + 2, 0x100);
osd.displayChar(13, col + 2, 0x100);
osd.displayChar(14, col + 2, selectFreqChar(signal_value, drone_detection_level));
}
}
void osdProcess()
{ // OSD enabled
// memset(max_step_range, 33, 30);
max_bin = 32;
osd.displayString(12, 1, String(CONF_FREQ_BEGIN));
osd.displayString(12, OSD_WIDTH - 8, String(CONF_FREQ_END));
// Finding biggest in result
// Skiping 0 and 32 31 to avoid overflow
for (int i = 1; i < MAX_POWER_LEVELS - 3; i++)
{
// filter
if (result[i] > 0
#if FILTER_SPECTRUM_RESULTS
&& ((result[i + 1] != 0 /*&& result[i + 2] != 0*/) || result[i - 1] != 0)
#endif
)
{
max_bin = i;
#ifdef PRINT_DEBUG
Serial.print("MAX in bin:" + String(max_bin));
Serial.println();
#endif
break;
}
}
// max_bin contains fist not 0 index of the bin
if (max_step_range > max_bin && max_bin != 0)
{
max_step_range = max_bin;
// Store RSSI value for RSSI Method
#ifdef METHOD_RSSI
max_bins_array_value[col] = result[max_bin];
#endif
}
// Going to the next OSD step
if (x % osd_steps == 0 && col < OSD_WIDTH)
{
// OSD SIDE BAR with frequency log
#ifdef OSD_SIDE_BAR
{
osd.displayString(col, OSD_WIDTH - 7,
String(CONF_FREQ_BEGIN + (col * osd_mhz_in_bin)) + "-" +
String(max_step_range) + " ");
}
#endif
// Test with Random Result...
// max_step_range = rand() % 32;
#ifdef METHOD_RSSI
// With THe RSSI method we can get real RSSI value not just a bin
#endif
// PRINT SIGNAL CHAR ROW, COL, VALUE
osdPrintSignalLevelChart(col, max_step_range);
#ifdef PRINT_DEBUG
Serial.println("MAX:" + String(max_step_range));
#endif
max_step_range = 32;
col++;
}
}
#endif
Config config;
struct RadioScan : Scan
{
float getRSSI() override;
};
float RadioScan::getRSSI()
{
#if defined(USING_SX1280PA)
// radio.startReceive();
// get instantaneous RSSI value
// When PR will be merged we can use radi.getRSSI(false);
uint8_t data[3] = {0, 0, 0}; // RssiInst, Status, RFU
radio.mod->SPIreadStream(RADIOLIB_SX128X_CMD_GET_RSSI_INST, data, 3);
return ((float)data[0] / (-2.0));
#elif defined(USING_LR1121)
// Try getRssiInst
float rssi;
radio.getRssiInst(&rssi);
// pass the replies
return rssi;
#else
return radio.getRSSI(false);
#endif
}
RadioScan r;
#define WATERFALL_SENSITIVITY 0.05
DecoratedBarChart *bar;
WaterfallChart *waterChart;
StackedChart stacked(display, 0, 0, 0, 0);
UptimeClock *uptime;
void init_radio()
{
// initialize SX1262 FSK modem at the initial frequency
both.println("Init radio");
#if defined(USING_SX1280PA)
state = radio.beginGFSK(CONF_FREQ_BEGIN);
#elif defined(USING_LR1121)
state = radio.beginGFSK(CONF_FREQ_BEGIN, 4.8F, 5.0F, 156.2F, 10, 16U, 1.7F);
#else
state = radio.beginFSK(CONF_FREQ_BEGIN);
#endif
if (state == RADIOLIB_ERR_NONE)
{
Serial.println(F("success!"));
}
else
{
display.println("Error:" + String(state));
Serial.print(F("failed, code "));
Serial.println(state);
while (true)
{
delay(5);
}
}
#ifdef METHOD_SPECTRAL
// upload a patch to the SX1262 to enable spectral scan
// NOTE: this patch is uploaded into volatile memory,
// and must be re-uploaded on every power up
both.println("Upload SX1262 patch");
// Upload binary patch into the SX126x device RAM. Patch is needed to e.g.,
// enable spectral scan and must be uploaded again on every power cycle.
RADIOLIB_OR_HALT(radio.uploadPatch(sx126x_patch_scan, sizeof(sx126x_patch_scan)));
// configure scan bandwidth and disable the data shaping
#endif
both.println("Setting up radio");
#ifdef USING_SX1280PA
// RADIOLIB_OR_HALT(radio.setBandwidth(RADIOLIB_SX128X_LORA_BW_406_25));
#elif USING_SX1276
// Receiver bandwidth in kHz. Allowed values
// are 2.6, 3.1, 3.9, 5.2, 6.3, 7.8, 10.4, 12.5, 15.6, 20.8, 25, 31.3, 41.7,
// 50, 62.5, 83.3, 100, 125, 166.7, 200 and 250 kHz.
RADIOLIB_OR_HALT(radio.setRxBandwidth(250));
#else
RADIOLIB_OR_HALT(radio.setRxBandwidth(BANDWIDTH));
#endif
// and disable the data shaping
state = radio.setDataShaping(RADIOLIB_SHAPING_NONE);
if (state != RADIOLIB_ERR_NONE)
{
Serial.println("Error:setDataShaping:" + String(state));
}
both.println("Starting scanning...");
// calibrate only once ,,, at startup
// TODO: check documentation (9.2.1) if we must calibrate in certain ranges
#ifdef USING_SX1280PA
state = radio.setFrequency(CONF_FREQ_BEGIN);
if (state != RADIOLIB_ERR_NONE)
{
Serial.println("Error:setFrequency:" + String(state));
}
state = radio.startReceive();
if (state != RADIOLIB_ERR_NONE)
{
Serial.println("Error:startReceive:" + String(state));
}
#elif USING_SX1276
// Sets carrier frequency. Allowed values range from 137.0 MHz to 1020.0 MHz.
radio.setFrequency(CONF_FREQ_BEGIN);
#else
radio.setFrequency(CONF_FREQ_BEGIN, true);
#endif
delay(50);
}
struct frequency_scan_result
{
uint64_t begin;
uint64_t end;
uint64_t last_epoch;
int16_t rssi; // deliberately not a float; floats can pin task to wrong core forever
ScanTaskResult dump;
size_t readings_sz;
} frequency_scan_result;
TaskHandle_t logToSerial = NULL;
TaskHandle_t dumpToComms = NULL;
void eventListenerForReport(void *arg, Event &e)
{
if (e.type == EventType::DETECTED)
{
if (e.epoch != frequency_scan_result.last_epoch)
{
frequency_scan_result.dump.sz = 0;
}
if (frequency_scan_result.dump.sz >= frequency_scan_result.readings_sz)
{
size_t old_sz = frequency_scan_result.readings_sz;
frequency_scan_result.readings_sz = frequency_scan_result.dump.sz + 1;
uint32_t *f = new uint32_t[frequency_scan_result.readings_sz];
int16_t *r = new int16_t[frequency_scan_result.readings_sz];
if (old_sz > 0)
{
memcpy(f, frequency_scan_result.dump.freqs_khz,
old_sz * sizeof(uint32_t));
memcpy(r, frequency_scan_result.dump.rssis, old_sz * sizeof(int16_t));
delete[] frequency_scan_result.dump.freqs_khz;
delete[] frequency_scan_result.dump.rssis;
}
frequency_scan_result.dump.freqs_khz = f;
frequency_scan_result.dump.rssis = r;
}
frequency_scan_result.dump.freqs_khz[frequency_scan_result.dump.sz] =
e.detected.freq * 1000; // convert to kHz
frequency_scan_result.dump.rssis[frequency_scan_result.dump.sz] =
max(e.detected.rssi, -999.0f);
frequency_scan_result.dump.sz++;
if (e.epoch != frequency_scan_result.last_epoch ||
e.detected.rssi > frequency_scan_result.rssi)
{
frequency_scan_result.last_epoch = e.epoch;
frequency_scan_result.rssi = e.detected.rssi;
}
return;
}
if (e.type == EventType::SCAN_TASK_COMPLETE)
{
// notify async communication that the data is ready
if (logToSerial != NULL)
{
xTaskNotifyGive(logToSerial);
}
if (dumpToComms != NULL)
{
xTaskNotifyGive(dumpToComms);
}
return;
}
}
ScanTask report_scans = ScanTask{
count : 0, // 0 => report none; < 0 => report forever; > 0 => report that many
delay : 0 // 0 => as and when it happens; > 0 => at least once that many ms
};
void dumpToCommsTask(void *parameter)
{
uint64_t last_epoch = frequency_scan_result.last_epoch;
for (;;)
{
int64_t delay = report_scans.delay;
if (delay == 0)
{
delay = (1ull << 63) - 1;
}
ulTaskNotifyTake(true, pdMS_TO_TICKS(delay));
if (report_scans.count == 0 || frequency_scan_result.last_epoch == last_epoch)
{
continue;
}
if (report_scans.count > 0)
{
report_scans.count--;
}
Message m;
m.type = MessageType::SCAN_RESULT;
m.payload.dump = frequency_scan_result.dump;
Comms0->send(m);
}
}
void logToSerialTask(void *parameter)
{
JsonDocument doc;
char jsonOutput[200];
uint64_t last_epoch = frequency_scan_result.last_epoch;
frequency_scan_result.rssi = -999;
for (;;)
{
ulTaskNotifyTake(true, pdMS_TO_TICKS(config.log_data_json_interval));
if (frequency_scan_result.begin != frequency_scan_result.end ||
frequency_scan_result.last_epoch != last_epoch)
{
int16_t highest_value_scanned = frequency_scan_result.rssi;
frequency_scan_result.rssi = -999;
last_epoch = frequency_scan_result.last_epoch;
if (highest_value_scanned == -999)
{
continue;
}
doc["low_range_freq"] = frequency_scan_result.begin;
doc["high_range_freq"] = frequency_scan_result.end;
doc["value"] = String(highest_value_scanned);
serializeJson(doc, jsonOutput);
Serial.println(jsonOutput);
}
}
}
void drone_sound_alarm(void *arg, Event &e);
void readConfigFile()
{
// writeFile(LittleFS, "/text.txt", "{WIFI:{name:\"sdfsdf\", Password:\"sdfsdf\"}");
ssid = readParameterFromParameterFile(SSID);
Serial.println("SSID: " + ssid);
pass = readParameterFromParameterFile(PASS);
Serial.println("PASS: " + pass);
ip = readParameterFromParameterFile(IP);
Serial.println("PASS: " + ip);
gateway = readParameterFromParameterFile(GATEWAY);
Serial.println("GATEWAY: " + gateway);
fstart = readParameterFromParameterFile(FSTART);
Serial.println("FSTART: " + fstart);
fend = readParameterFromParameterFile(FEND);
Serial.println("FEND: " + fend);
smpls = readParameterFromParameterFile("samples");
Serial.println("SAMPLES: " + smpls);
CONF_SAMPLES = (smpls == "") ? samples : atoi(smpls.c_str());
samples = CONF_SAMPLES;
CONF_FREQ_BEGIN = (fstart == "") ? FREQ_BEGIN : atoi(fstart.c_str());
CONF_FREQ_END = (fend == "") ? FREQ_END : atoi(fend.c_str());
both.println("C FREQ BEGIN:" + String(CONF_FREQ_BEGIN));
both.println("C FREQ END:" + String(CONF_FREQ_END));
both.println("C SAMPLES:" + String(CONF_SAMPLES));
RANGE_PER_PAGE = CONF_FREQ_END - CONF_FREQ_BEGIN; // FREQ_END - CONF_FREQ_BEGIN
RANGE = (int)(CONF_FREQ_END - CONF_FREQ_BEGIN);
SINGLE_STEP = (float)(RANGE / (STEPS * SCAN_RBW_FACTOR));
range = (int)(CONF_FREQ_END - CONF_FREQ_BEGIN);
iterations = RANGE / RANGE_PER_PAGE;
// uint64_t range_frequency = FREQ_END - CONF_FREQ_BEGIN;
median_frequency = (CONF_FREQ_BEGIN + CONF_FREQ_END) / 2;
}
void setup(void)
{
#ifdef LILYGO
setupBoards(); // true for disable U8g2 display library
delay(500);
Serial.println("Setup LiLybeginSDCardGO board is done");
#endif
// LED brightness
heltec_led(25);
#ifdef OSD_ENABLED
osd.init(OSD_SCK, OSD_MISO, OSD_MOSI);
osd.clear();
/* Write the custom character to the OSD, replacing the original character*/
/* Expand 0xe0 to 0x0e0, the high 8 bits indicate page number and the low 8 bits
* indicate the inpage address.*/
osd.storeChar(0xe0, buf0);
// Display Satellite icon in the left bottom corner
osd.displayChar(14, 1, 0x10f);
/*display String*/
osd.displayString(14, 15, " Lora SA");
osd.displayString(2, 1, " Spectral RF Analyzer");
#endif
float vbat;
float resolution;
bt_start = millis();
wf_start = millis();
config = Config::init();
r.comms_initialized = Comms::initComms(config);
if (r.comms_initialized)
{
Serial.println("Comms initialized fine");
}
else
{
Serial.println("Comms did not initialize");
}
pinMode(LED, OUTPUT);
pinMode(BUZZER_PIN, OUTPUT);
pinMode(REB_PIN, OUTPUT);
heltec_setup();
#ifdef JOYSTICK_ENABLED
calibrate_joy();
pinMode(JOY_BTN_PIN, INPUT_PULLUP);
#endif
UI_Init(&display);
for (int i = 0; i < 200; i++)
{
button.update();
delay(10);
if (button.pressed())
{
r.sound_on = !r.sound_on;
tone(BUZZER_PIN, 205, 100);
delay(50);
tone(BUZZER_PIN, 205, 100);
break;
}
}
display.clear();
#ifdef WEB_SERVER
both.println("CLICK for WIFI settings.");
for (int i = 0; i < 200; i++)
{
both.print(".");
button.update();
delay(10);
if (button.pressedNow())
{
both.println("-----------");
both.println("Starting WIFI-SERVER...");
// Error here: E (15752) ledc: ledc_get_duty(745): LEDC is not initialized
tone(BUZZER_PIN, 205, 100);
delay(50);
tone(BUZZER_PIN, 205, 500);
tone(BUZZER_PIN, 205, 100);
delay(50);
serverStart();
both.println("Ready to Connect: 192.168.4.1");
delay(600);
break;
}
}
both.print("\n");
both.println("Init File System");
initLittleFS();
readConfigFile();
#endif
#ifndef WEB_SERVER
CONF_SAMPLES = samples;
CONF_FREQ_BEGIN = FREQ_BEGIN;
CONF_FREQ_END = FREQ_END;
both.println("FREQ BEGIN:" + String(CONF_FREQ_BEGIN));
both.println("FREQ END:" + String(CONF_FREQ_END));
both.println("SAMPLES:" + String(CONF_SAMPLES));
RANGE_PER_PAGE = CONF_FREQ_END - CONF_FREQ_BEGIN; // FREQ_END - CONF_FREQ_BEGIN
RANGE = (int)(CONF_FREQ_END - CONF_FREQ_BEGIN);
SINGLE_STEP = (float)(RANGE / (STEPS * SCAN_RBW_FACTOR));
range = (int)(CONF_FREQ_END - CONF_FREQ_BEGIN);
iterations = RANGE / RANGE_PER_PAGE;
median_frequency = (CONF_FREQ_BEGIN + CONF_FREQ_END) / 2;
#endif
init_radio();
#ifndef LILYGO
vbat = heltec_vbat();
both.printf("V battery: %.2fV (%d%%)\n", vbat, heltec_battery_percent(vbat));
delay(1000);
#endif // end not LILYGO
#ifdef WIFI_SCANNING_ENABLED
WiFi.mode(WIFI_STA);
WiFi.disconnect();
#endif
#ifdef BT_SCANNING_ENABLED
#endif
delay(400);
display.clear();
resolution = (float)RANGE / (STEPS * SCAN_RBW_FACTOR);
single_page_scan = (RANGE_PER_PAGE == range);
#ifdef DISABLED_CODE
// Adjust range if it is not even to RANGE_PER_PAGE
if (!single_page_scan && range % RANGE_PER_PAGE != 0)
{
range = range + range % RANGE_PER_PAGE;
}
#endif
if (single_page_scan)
{
both.println("Single Page Screen MODE");
both.println("Multi Screen View Press P - button");
both.println("Multi Screen Res: " + String(resolution) + "Mhz/tick");
both.println(
"Resolution: " + String((float)RANGE_PER_PAGE / (STEPS * SCAN_RBW_FACTOR)) +
"MHz/tick");
for (int i = 0; i < 500; i++)
{
button.update();
delay(5);
both.print(".");
if (button.pressed())
{
RANGE_PER_PAGE = DEFAULT_RANGE_PER_PAGE;
single_page_scan = false;
tone(BUZZER_PIN, 205, 100);
delay(50);
tone(BUZZER_PIN, 205, 100);
break;
}
}
}
else
{
both.println("Multi Page Screen MODE");
both.println("Single screen View Press P - button");
both.println("Single screen Resol: " + String(resolution) + "Mhz/tick");
both.println(
"Resolution: " + String((float)RANGE_PER_PAGE / (STEPS * SCAN_RBW_FACTOR)) +
"Mhz/tick");
for (int i = 0; i < 500; i++)
{
button.update();
delay(10);
both.print(".");
if (button.pressed())
{
RANGE_PER_PAGE = range;
single_page_scan = true;
tone(BUZZER_PIN, 205, 100);
break;
}
}
}
display.clear();
Serial.println();
#ifdef METHOD_RSSI
// TODO: try RADIOLIB_SX126X_RX_TIMEOUT_INF
#ifdef USING_SX1280PA
state = radio.startReceive(RADIOLIB_SX128X_RX_TIMEOUT_NONE);
#else
state = radio.startReceive(RADIOLIB_SX126X_RX_TIMEOUT_NONE);
#endif
if (state != RADIOLIB_ERR_NONE)
{
Serial.print(F("Failed to start receive mode, error code: "));
display.drawString(0, 64 - 10, "E:startReceive");
display.display();
delay(500);
Serial.println(state);
}
#endif
// waterfall start line y-axis
w = WATERFALL_START;
#ifdef OSD_ENABLED
osd.clear();
#endif
#ifdef LOG_DATA_JSON
xTaskCreate(logToSerialTask, "LOG_DATA_JSON", 2048, NULL, 1, &logToSerial);
#endif
xTaskCreate(dumpToCommsTask, "DUMP_RESPONSE_PROCESS", 2048, NULL, 1, &dumpToComms);
r.trigger_level = TRIGGER_LEVEL;
stacked.reset(0, 0, display.width(), display.height());
bar = new DecoratedBarChart(display, 0, 0, display.width(), 0, CONF_FREQ_BEGIN,
CONF_FREQ_END, LO_RSSI_THRESHOLD, HI_RSSI_THRESHOLD,
r.trigger_level);
size_t b = stacked.addChart(bar);
Chart *statusBar = new StatusBar(display, 0, 0, display.width(), r);
#if (WATERFALL_ENABLED == true)
size_t *multiples = new size_t[6]{5, 3, 4, 15, 4, 3};
WaterfallModel *model =
new WaterfallModel((size_t)display.width(), 1000, 6, multiples);
model->reset(millis(), display.width());
delete[] multiples;
waterChart = new WaterfallChart(display, 0, WATERFALL_START, display.width(), 0,
CONF_FREQ_BEGIN, CONF_FREQ_END, r.trigger_level,
WATERFALL_SENSITIVITY, model);
size_t c = stacked.addChart(waterChart);
stacked.setHeight(c, stacked.height - WATERFALL_START - statusBar->height);
r.addEventListener(DETECTED, *waterChart);
#endif
size_t d = stacked.addChart(statusBar);
stacked.setHeight(b, stacked.height);
r.addEventListener(DETECTED, bar->bar);
r.addEventListener(DETECTED, drone_sound_alarm, &r);
r.addEventListener(SCAN_TASK_COMPLETE, stacked);
frequency_scan_result.readings_sz = 0;
frequency_scan_result.dump.sz = 0;
r.addEventListener(ALL_EVENTS, eventListenerForReport, NULL);
#ifdef UPTIME_CLOCK
uptime = new UptimeClock(display, millis());
#endif
}
// Formula to translate 33 bin to approximate RSSI value
int binToRSSI(int bin)
{
// the first the strongest RSSI in bin value is 0
return 11 + (bin * 4);
}
// is there an input using Hot Button or joystick
bool buttonInputRequested()
{
if (button.pressedFor(100)
#ifdef JOYSTICK_ENABLED
|| joy_btn_click()
#endif
)
{
button.update();
if (button.pressedNow()
#ifdef JOYSTICK_ENABLED
|| joy_btn_click()
#endif
)
{
return true;
}
}
return false;
}
enum ButtonEvent
{
NONE = 0,
LONG_PRESS,
SHORT_PRESS,
TOO_SHORT,
SUSPEND
};
ButtonEvent buttonPressEvent()
{
button_pressed_counter = 0;
// if long press stop
while (button.pressedNow()
#ifdef JOYSTICK_ENABLED
|| joy_btn_click()
#endif
)
{
delay(10);
button_pressed_counter++;
if (button_pressed_counter > 150)
{
digitalWrite(LED, HIGH);
delay(150);
digitalWrite(LED, LOW);
}
}
if (button_pressed_counter > 150)
{
return LONG_PRESS;
}
if (button_pressed_counter > 50)
{
if (!joy_btn_clicked)
{
return SUSPEND;
}
return SHORT_PRESS;
}
button.update();
return TOO_SHORT;
}
void drone_sound_alarm(void *arg, Event &e)
{
if (e.type != DETECTED)
{
return;
}
Scan &r = *((Scan *)arg);
if (!r.sound_on)
return;
int tone_freq_db = e.detected.detected_at * 2;
int drone_detection_level = r.drone_detection_level;
int detection_count = r.detection_count;
// If level is set to sensitive,
// start beeping every 10th frequency and shorter
// it improves performance less short beep delays...
if (drone_detection_level <= 25)
{
if (tone_freq_db != 205)
{
tone_freq_db = 285 - tone_freq_db;
}
if (r.detection_count == 1 && r.sound_on)
{
tone(BUZZER_PIN, tone_freq_db,
10); // same action ??? but first time
}
if (r.detection_count % 5 == 0 && r.sound_on)
{
tone(BUZZER_PIN, tone_freq_db,
10); // same action ??? but every 5th time
}
}
else
{
if (r.detection_count % 20 == 0 && r.sound_on)
{
tone(BUZZER_PIN, 205,
10); // same action ??? but every 20th detection
}
}
}
void joystickMoveCursor(int joy_x_pressed)
{
if (joy_x_pressed > 0)
{
cursor_x_position--;
display.drawString(cursor_x_position, 0, String((int)r.current_frequency));
display.drawLine(cursor_x_position, 1, cursor_x_position, 10);
display.display();
delay(10);
}
else if (joy_x_pressed < 0)
{
cursor_x_position++;
display.drawString(cursor_x_position, 0, String((int)r.current_frequency));
display.drawLine(cursor_x_position, 1, cursor_x_position, 10);
display.display();
delay(10);
}
if (cursor_x_position > DISPLAY_WIDTH || cursor_x_position < 0)
{
cursor_x_position = 0;
display.drawString(cursor_x_position, 0, String((int)r.current_frequency));
display.drawLine(cursor_x_position, 1, cursor_x_position, 10);
display.display();
delay(10);
}
}
bool is_new_x_pixel(int x)
{
if (x % SCAN_RBW_FACTOR == 0)
return true;
else
return false;
}
void check_ranges()
{
if (RANGE_PER_PAGE == range)
{
single_page_scan = true;
}
else
{
single_page_scan = false;
}
for (int range : SCAN_RANGES)
{
ranges_count++;
}
if (ranges_count > 0)
{
iterations = ranges_count;
single_page_scan = false;
}
}
void checkComms()
{
while (Comms0->available() > 0)
{
Message *m = Comms0->receive();
if (m == NULL)
continue;
switch (m->type)
{
case MessageType::SCAN:
report_scans = m->payload.scan;
break;
}
delete m;
}
}
// MAX Frequency RSSI BIN value of the samples
int max_rssi_x = 999;
void loop(void)
{
r.led_flag = false;
r.detection_count = 0;
drone_detected_frequency_start = 0;
ranges_count = 0;
checkComms();
// reset scan time
if (config.print_profile_time)
{
scan_time = 0;
loop_start = millis();
}
r.epoch++;
if (!ANIMATED_RELOAD || !single_page_scan)
{
// clear the scan plot rectangle
UI_clearPlotter();
UI_clearTopStatus();
}
// do the scan
range = CONF_FREQ_END - CONF_FREQ_BEGIN;
if (RANGE_PER_PAGE > range)
{
RANGE_PER_PAGE = range;
}
r.fr_begin = CONF_FREQ_BEGIN;
r.fr_end = r.fr_begin;
// 50 is a single-screen range
// TODO: Make 50 a variable with the option to show the full range
iterations = range / RANGE_PER_PAGE;
#if 0 // disabled code
if (range % RANGE_PER_PAGE != 0)
{
// add more scan
//++;
}
#endif
check_ranges();
// Iterating by small ranges by 50 Mhz each pixel is 0.4 Mhz
for (range_item = 0; range_item < iterations; range_item++)
{
range = RANGE_PER_PAGE;
if (ranges_count == 0)
{
r.fr_begin = (range_item == 0) ? r.fr_begin : r.fr_begin + range;
r.fr_end = r.fr_begin + RANGE_PER_PAGE;
}
else
{
r.fr_begin = SCAN_RANGES[range_item] / 1000;
r.fr_end = SCAN_RANGES[range_item] % 1000;
range = r.fr_end - r.fr_begin;
}
#ifdef DISABLED_CODE
if (!ANIMATED_RELOAD || !single_page_scan)
{
// clear the scan plot rectangle
UI_clearPlotter();
}
#endif
drone_detected_frequency_start = 0;
display.setTextAlignment(TEXT_ALIGN_RIGHT);
for (int i = 0; i < MAX_POWER_LEVELS; i++)
{
max_bins_array_value[i] = 0;
}
// horizontal (x axis) Frequency loop
osd_x = 1, osd_y = 2, col = 0, max_bin = 0;
// x loop
for (x = 0; x < STEPS * SCAN_RBW_FACTOR; x++)
{
new_pixel = is_new_x_pixel(x);
if (ANIMATED_RELOAD && SCAN_RBW_FACTOR == 1)
{
UI_drawCursor(x);
}
if (new_pixel && ANIMATED_RELOAD && SCAN_RBW_FACTOR > 1)
{
UI_drawCursor((int)(x / SCAN_RBW_FACTOR));
}
#ifdef PRINT_PROFILE_TIME
scan_start_time = millis();
#endif
// Real display pixel x - axis.
// Because of the SCAN_RBW_FACTOR x is not a display coordinate anymore
// x > STEPS on SCAN_RBW_FACTOR
int display_x = x / SCAN_RBW_FACTOR;
float step = (range * ((float)x / (STEPS * SCAN_RBW_FACTOR)));
r.current_frequency = r.fr_begin + step;
LOG("setFrequency:%f\n", r.current_frequency);
#ifdef USING_SX1280PA
state =
radio.setFrequency(r.current_frequency); // 1280 doesn't have calibration
radio.startReceive(RADIOLIB_SX128X_RX_TIMEOUT_INF);
#elif USING_SX1276
state = radio.setFrequency(freq);
#else
state = radio.setFrequency(r.current_frequency,
true); // true = no calibration need here
#endif
int radio_error_count = 0;
if (state != RADIOLIB_ERR_NONE)
{
display.drawString(0, 64 - 10,
"E(" + String(state) +
"):setFrequency:" + String(r.current_frequency));
Serial.println("E(" + String(state) +
"):setFrequency:" + String(r.current_frequency));
display.display();
delay(2);
radio_error_count++;
if (radio_error_count > 10)
continue;
}
LOG("Step:%d Freq: %f\n", x, r.current_frequency);
// SpectralScan Method
#ifdef METHOD_SPECTRAL
{
// start spectral scan third parameter is a sleep interval
radio.spectralScanStart(SAMPLES, 1);
// wait for spectral scan to finish
radio_error_count = 0;
while (radio.spectralScanGetStatus() != RADIOLIB_ERR_NONE)
{
Serial.println("radio.spectralScanGetStatus ERROR: ");
Serial.println(radio.spectralScanGetStatus());
display.drawString(0, 64 - 20,
"E:specScSta:" +
String(radio.spectralScanGetStatus()));
display.display();
heltec_delay(ONE_MILLISEC * 2);
radio_error_count++;
if (radio_error_count > 10)
continue;
}
// read the results Array to which the results will be saved
state = radio.spectralScanGetResult(result);
display.drawString(0, 64 - 10, "scanGetResult:" + String(state));
}
#endif
#ifdef METHOD_RSSI
// Spectrum analyzer using getRSSI
{
LOG("METHOD RSSI");
uint16_t max_rssi = r.rssiMethod(CONF_SAMPLES, result,
RADIOLIB_SX126X_SPECTRAL_SCAN_RES_SIZE);
if (max_x_rssi[display_x] > max_rssi)
{
max_x_rssi[display_x] = max_rssi;
}
}
#endif // SCAN_METHOD == METHOD_RSSI
// if this code is not executed LORA radio doesn't work
// basically SX1262 requires delay
// osd.displayString(12, 1, String(CONF_FREQ_BEGIN));
// osd.displayString(12, 30 - 8, String(FREQ_END));
// delay(2);
#ifdef OSD_ENABLED
osdProcess();
#endif
#ifdef JOYSTICK_ENABLED
if (display_x == cursor_x_position)
{
display.setColor(BLACK);
display.fillRect(display_x - 20, 3, 36, 11);
display.setColor(WHITE);
}
#endif
Event event = r.detect(result, filtered_result,
RADIOLIB_SX126X_SPECTRAL_SCAN_RES_SIZE, samples);
event.time_ms = millis();
size_t detected_at = event.detected.detected_at;
if (max_rssi_x > detected_at)
{
// MAx bin Value not RSSI
max_rssi_x = detected_at;
}
detected = event.detected.detected;
detected_y[display_x] = false;
float rr = event.detected.rssi;
r.drone_detection_level = drone_detection_level;
if (event.detected.trigger)
{
// check if we should alarm about a drone presence
if (detected_y[display_x] == false) // detection threshold match
{
// Set LED to ON (filtered in UI component)
r.led_flag = true;
if (drone_detected_frequency_start == 0)
{
// mark freq start
drone_detected_frequency_start = r.current_frequency;
}
// mark freq end ... will shift right to last detected range
drone_detected_frequency_end = r.current_frequency;
#ifdef LOG_DATA_JSON
frequency_scan_result.begin = drone_detected_frequency_start;
frequency_scan_result.end = drone_detected_frequency_end;
#endif
if (DRAW_DETECTION_TICKS == true)
{
// draw vertical line on top of display for "drone detected"
// frequencies
#ifdef METHOD_SPECTRAL
if (!detected_y[display_x])
{
display.drawLine(display_x, 1, display_x, 4);
detected_y[display_x] = true;
}
#endif
}
}
}
r.fireEvent(event);
#ifdef JOYSTICK_ENABLED
// Draw joystick cursor and Frequency RSSI value
if (display_x == cursor_x_position)
{
display.drawString(display_x - 1, 0, String((int)r.current_frequency));
display.drawLine(display_x, 1, display_x, 12);
// if method scan RSSI we can get exact RSSI value
display.drawString(display_x + 17, 0, "-" + String((int)max_rssi_x * 4));
}
#endif
#ifdef PRINT_PROFILE_TIME
scan_time += (millis() - scan_start_time);
#endif
#ifdef PRINT_DEBUG
Serial.println("....\n");
#endif
if (r.animated)
{
display.display();
}
if (buttonInputRequested())
{
display.setTextAlignment(TEXT_ALIGN_CENTER);
display.drawString(display.width() / 2, 0, String(r.current_frequency));
display.display();
ButtonEvent e = buttonPressEvent();
if (e == LONG_PRESS)
{
// Remove Curent Frequency Text
display.setTextAlignment(TEXT_ALIGN_CENTER);
display.setColor(BLACK);
display.drawString(display.width() / 2, 0,
String(r.current_frequency));
display.setColor(WHITE);
display.display();
break;
}
if (e == SUSPEND)
{
// Visually confirm it's off so user releases button
display.displayOff();
// Deep sleep (has wait for release so we don't wake up
// immediately)
heltec_deep_sleep();
break;
}
if (e == SHORT_PRESS)
break;
if (e == TOO_SHORT)
{
String v = String(r.trigger_level) + " dB";
uint16_t w = display.getStringWidth(v);
display.setTextAlignment(TEXT_ALIGN_RIGHT);
// erase old drone detection level value
display.setColor(BLACK);
display.fillRect(display.width() - w, 0, 13, w);
display.setColor(WHITE);
// dt is roughly single-pixel increment
float dt =
bar->bar.height == 0
? 0.0
: (LO_RSSI_THRESHOLD - HI_RSSI_THRESHOLD) / bar->bar.height;
r.trigger_level += dt;
if (r.trigger_level <= LO_RSSI_THRESHOLD)
{
r.trigger_level = HI_RSSI_THRESHOLD;
}
// print new value
display.drawString(display.width(), 0, v);
tone(BUZZER_PIN, 104, 150);
bar->bar.redraw_all = true;
}
}
// wait a little bit before the next scan,
// otherwise the SX1262 hangs
// Add more logic before instead of long delay...
int delay_cnt = 1;
#ifdef METHOD_SPECTRAL
if (false && state != RADIOLIB_ERR_NONE)
{
if (delay_cnt == 1)
{
Serial.println("E:getResult");
display.drawString(0, 64 - 10, "E:getResult");
// trying to use display as delay..
display.display();
}
else
{
heltec_delay(ONE_MILLISEC * 2);
Serial.println("E:getStatus");
display.drawString(0, 64 - 10, "E:getResult");
// trying to use display as delay..
display.display();
}
Serial.println("spectralScanGetStatus ERROR(" +
String(radio.spectralScanGetStatus()) +
") hard delay(2) - " + String(delay_cnt));
// if error than speed is slow animating chart
ANIMATED_RELOAD = true;
delay(50);
delay_cnt++;
}
#endif
// TODO: move osd logic here as a daley ;)
// Loop is needed if heltec_delay(1) not used
heltec_loop();
// Move joystick
#ifdef JOYSTICK_ENABLED
int joy_x_pressed = get_joy_x(true);
joystickMoveCursor(joy_x_pressed);
#endif
}
w++;
if (w > ROW_STATUS_TEXT + 1)
{
w = WATERFALL_START;
}
{
Event event(r, SCAN_TASK_COMPLETE, millis());
r.fireEvent(event);
}
// Render display data here
#ifdef UPTIME_CLOCK
uptime->draw(millis());
#endif
display.display();
#ifdef OSD_ENABLED
// Sometimes OSD prints entire screen with the digits.
// We need clean the screen to fix it.
// We can do it every time but to optimise doing every N times
if (global_counter != 0 && global_counter % 10 == 0)
{
#if !defined(BT_SCANNING_ENABLED) && !defined(WIFI_SCANNING_ENABLED)
osd.clear();
osd.displayChar(14, 1, 0x10f);
global_counter = 0;
#endif
}
ANIMATED_RELOAD = false;
global_counter++;
#endif
}
#ifdef PRINT_DEBUG
// Serial.println("----");
#endif
joy_btn_clicked = false;
if (config.print_profile_time)
{
#ifdef PRINT_PROFILE_TIME
loop_time = millis() - loop_start;
Serial.printf("LOOP: %lld ms; SCAN: %lld ms;\n ", loop_time, scan_time);
#endif
}
// No WiFi and BT Scan Without OSD
#ifdef OSD_ENABLED
#ifdef WIFI_SCANNING_ENABLED
if ((millis() - wf_start) > WF_SCAN_DELAY)
{
scanWiFi();
wf_start = millis();
// prevent BT scanning after scanning WF
bt_start = millis();
}
#endif
#ifdef BT_SCANNING_ENABLED
if ((millis() - bt_start) > BT_SCAN_DELAY)
{
scanBT();
bt_start = millis();
}
#endif
#endif
}
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