354 lines
11 KiB
C++
354 lines
11 KiB
C++
/*******************************************************************************
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* Rtl WiFi Analyzer
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* For RTL872x only.
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*
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* Add realtek ameba core support to Arduino IDE:
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* https://github.com/ambiot/ambd_arduino
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*
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* Old patch realtek ameba core variant.cpp to RTL8720DN pinout:
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* https://github.com/mikey60/BW16-RTL8720DN-Module-Arduino
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*
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* Defalult pin list for non display dev kit:
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* RTL8720 BW16 old patch core : CS: 18, DC: 17, RST: 2, BL: 23
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* RTL8720_BW16 Official core : CS: 9, DC: 8, RST: 6, BL: 3
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* RTL8722 dev board : CS: 18, DC: 17, RST: 22, BL: 23
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* RTL8722_mini dev board : CS: 12, DC: 14, RST: 15, BL: 13
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******************************************************************************/
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#define SCAN_INTERVAL 3000
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#include <lwip_netconf.h>
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#include <wifi_conf.h>
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#include <wifi_constants.h>
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#include <wifi_structures.h>
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#include <wl_definitions.h>
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#include <wl_types.h>
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#include <Arduino_GFX_Library.h>
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#define GFX_BL DF_GFX_BL // default backlight pin, you may replace DF_GFX_BL to actual backlight pin
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Arduino_DataBus *bus = create_default_Arduino_DataBus();
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/* More display class: https://github.com/moononournation/Arduino_GFX/wiki/Display-Class */
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Arduino_GFX *gfx = new Arduino_ILI9341(bus, DF_GFX_RST, 3 /* rotation */, false /* IPS */);
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static int16_t w, h, text_size, banner_height, graph24_baseline, graph50_baseline, graph_baseline, graph_height, channel24_width, channel50_width, channel_width, signal_width;
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// RSSI RANGE
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#define RSSI_CEILING -40
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#define RSSI_FLOOR -100
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// Channel legend mapping
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static uint16_t channel_legend[] = {
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1, 2, 3, 4, 5, 6, 7, // 1, 2, 3, 4, 5, 6, 7,
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8, 9, 10, 11, 12, 13, 14, // 8, 9, 10, 11, 12, 13, 14,
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32, 0, 0, 0, 40, 0, 0, // 32, 34, 36, 38, 40, 42, 44,
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0, 48, 0, 0, 0, 56, 0, // 46, 48, 50, 52, 54, 56, 58,
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0, 0, 64, 0, 0, 0, // 60, 62, 64, 68,N/A, 96,
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100, 0, 0, 0, 108, 0, 0, //100,102,104,106,108,110,112,
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0, 116, 0, 0, 0, 124, 0, //114,116,118,120,122,124,126,
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0, 0, 132, 0, 0, 0, 140, //128,N/A,132,134,136,138,140,
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0, 0, 0, 149, 0, 0, 0, //142,144,N/A,149,151,153,155,
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157, 0, 0, 0, 165, 0, 0, //157,159,161,163,165,167,169,
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0, 173}; //171,173
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// Channel color mapping
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static uint16_t channel_color[] = {
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RED, ORANGE, YELLOW, GREEN, CYAN, BLUE, MAGENTA,
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RED, ORANGE, YELLOW, GREEN, CYAN, BLUE, MAGENTA,
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RED, ORANGE, YELLOW, GREEN, CYAN, BLUE, MAGENTA,
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RED, ORANGE, YELLOW, GREEN, CYAN, BLUE, MAGENTA,
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RED, ORANGE, YELLOW, GREEN, WHITE, MAGENTA,
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RED, ORANGE, YELLOW, GREEN, CYAN, BLUE, MAGENTA,
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RED, ORANGE, YELLOW, GREEN, CYAN, BLUE, MAGENTA,
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RED, ORANGE, YELLOW, GREEN, CYAN, BLUE, MAGENTA,
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RED, ORANGE, YELLOW, GREEN, CYAN, BLUE, MAGENTA,
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RED, ORANGE, YELLOW, GREEN, CYAN, BLUE, MAGENTA,
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RED, ORANGE};
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static uint16_t channelIdx(int channel)
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{
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if (channel <= 14) // 2.4 GHz, channel 1-14
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{
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return channel - 1;
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}
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if (channel <= 64) // 5 GHz, channel 32 - 64
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{
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return 14 + ((channel - 32) / 2);
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}
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if (channel == 68)
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{
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return 31;
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}
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if (channel == 96)
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{
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return 33;
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}
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if (channel <= 144) // channel 98 - 144
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{
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return 34 + ((channel - 100) / 2);
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}
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// channel 149 - 177
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return 58 + ((channel - 149) / 2);
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}
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static uint8_t _networkCount;
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static char _networkSsid[WL_NETWORKS_LIST_MAXNUM][WL_SSID_MAX_LENGTH];
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static int32_t _networkRssi[WL_NETWORKS_LIST_MAXNUM];
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static uint32_t _networkEncr[WL_NETWORKS_LIST_MAXNUM];
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static uint8_t _networkChannel[WL_NETWORKS_LIST_MAXNUM];
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static char _networkMac[WL_NETWORKS_LIST_MAXNUM][18];
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static rtw_result_t wifidrv_scan_result_handler(rtw_scan_handler_result_t *malloced_scan_result)
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{
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rtw_scan_result_t *record;
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if (malloced_scan_result->scan_complete != RTW_TRUE)
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{
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record = &malloced_scan_result->ap_details;
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record->SSID.val[record->SSID.len] = 0; /* Ensure the SSID is null terminated */
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if (_networkCount < WL_NETWORKS_LIST_MAXNUM)
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{
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strcpy(_networkSsid[_networkCount], (char *)record->SSID.val);
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_networkRssi[_networkCount] = record->signal_strength;
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_networkEncr[_networkCount] = record->security;
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_networkChannel[_networkCount] = record->channel;
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sprintf(_networkMac[_networkCount], "%02X:%02X:%02X:%02X:%02X:%02X",
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record->BSSID.octet[0], record->BSSID.octet[1], record->BSSID.octet[2],
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record->BSSID.octet[3], record->BSSID.octet[4], record->BSSID.octet[5]);
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_networkCount++;
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}
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}
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return RTW_SUCCESS;
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}
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static int8_t scanNetworks()
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{
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uint8_t attempts = 10;
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_networkCount = 0;
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if (wifi_scan_networks(wifidrv_scan_result_handler, NULL) != RTW_SUCCESS)
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{
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return WL_FAILURE;
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}
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do
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{
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delay(SCAN_INTERVAL);
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} while ((_networkCount == 0) && (--attempts > 0));
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return _networkCount;
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}
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void setup()
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{
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Serial.begin(115200);
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// Serial.setDebugOutput(true);
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// while(!Serial);
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Serial.println("Arduino_GFX RTL WiFi Analyzer example");
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LwIP_Init();
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wifi_on(RTW_MODE_STA);
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#ifdef GFX_EXTRA_PRE_INIT
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GFX_EXTRA_PRE_INIT();
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#endif
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#if defined(LCD_PWR_PIN)
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pinMode(LCD_PWR_PIN, OUTPUT); // sets the pin as output
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digitalWrite(LCD_PWR_PIN, HIGH); // power on
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#endif
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#ifdef GFX_BL
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pinMode(GFX_BL, OUTPUT);
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digitalWrite(GFX_BL, HIGH);
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#endif
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// Init Display
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if (!gfx->begin())
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{
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Serial.println("gfx->begin() failed!");
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}
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w = gfx->width();
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h = gfx->height();
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text_size = (h < 200) ? 1 : 2;
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banner_height = (text_size * 8) + 4;
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graph_height = ((gfx->height() - banner_height) / 2) - 30;
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graph24_baseline = banner_height + graph_height + 10;
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graph50_baseline = graph24_baseline + graph_height + 30;
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channel24_width = w / 17;
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channel50_width = w / 62;
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// direct draw banner to output display
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gfx->setTextSize(text_size);
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gfx->fillScreen(BLACK);
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gfx->setTextColor(GREEN);
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gfx->setCursor(2, 2);
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gfx->print("RTL");
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gfx->setTextColor(WHITE);
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gfx->print(" WiFi Analyzer");
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}
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void loop()
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{
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uint8_t ap_count_list[] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
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int32_t peak_list[] = {RSSI_FLOOR, RSSI_FLOOR, RSSI_FLOOR, RSSI_FLOOR, RSSI_FLOOR, RSSI_FLOOR, RSSI_FLOOR, RSSI_FLOOR, RSSI_FLOOR, RSSI_FLOOR, RSSI_FLOOR, RSSI_FLOOR, RSSI_FLOOR, RSSI_FLOOR, RSSI_FLOOR, RSSI_FLOOR, RSSI_FLOOR, RSSI_FLOOR, RSSI_FLOOR, RSSI_FLOOR, RSSI_FLOOR, RSSI_FLOOR, RSSI_FLOOR, RSSI_FLOOR, RSSI_FLOOR, RSSI_FLOOR, RSSI_FLOOR, RSSI_FLOOR, RSSI_FLOOR, RSSI_FLOOR, RSSI_FLOOR, RSSI_FLOOR, RSSI_FLOOR, RSSI_FLOOR, RSSI_FLOOR, RSSI_FLOOR, RSSI_FLOOR, RSSI_FLOOR, RSSI_FLOOR, RSSI_FLOOR, RSSI_FLOOR, RSSI_FLOOR, RSSI_FLOOR, RSSI_FLOOR, RSSI_FLOOR, RSSI_FLOOR, RSSI_FLOOR, RSSI_FLOOR, RSSI_FLOOR, RSSI_FLOOR, RSSI_FLOOR, RSSI_FLOOR, RSSI_FLOOR, RSSI_FLOOR, RSSI_FLOOR, RSSI_FLOOR, RSSI_FLOOR, RSSI_FLOOR, RSSI_FLOOR, RSSI_FLOOR, RSSI_FLOOR, RSSI_FLOOR, RSSI_FLOOR, RSSI_FLOOR, RSSI_FLOOR, RSSI_FLOOR, RSSI_FLOOR, RSSI_FLOOR, RSSI_FLOOR, RSSI_FLOOR, RSSI_FLOOR};
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int16_t peak_id_list[] = {-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1};
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int32_t channel;
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uint16_t idx;
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int32_t rssi;
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String ssid;
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uint16_t color;
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int16_t height, offset, text_width;
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int n = scanNetworks();
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// clear old graph
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gfx->fillRect(0, banner_height, w, h - banner_height, BLACK);
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gfx->setTextSize(1);
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if (n == 0)
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{
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gfx->setTextColor(WHITE);
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gfx->setCursor(0, banner_height);
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gfx->println("No networks found");
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}
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else
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{
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for (int i = 0; i < n; i++)
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{
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channel = _networkChannel[i];
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idx = channelIdx(channel);
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rssi = _networkRssi[i];
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// channel peak stat
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if (peak_list[idx] < rssi)
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{
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peak_list[idx] = rssi;
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peak_id_list[idx] = i;
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}
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ap_count_list[idx]++;
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}
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// plot found WiFi info
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for (int i = 0; i < n; i++)
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{
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channel = _networkChannel[i];
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idx = channelIdx(channel);
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rssi = _networkRssi[i];
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color = channel_color[idx];
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height = constrain(map(rssi, RSSI_FLOOR, RSSI_CEILING, 1, graph_height), 1, graph_height);
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if (idx < 14)
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{
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graph_baseline = graph24_baseline;
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channel_width = channel24_width;
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signal_width = channel24_width * 2;
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offset = (idx + 2) * channel24_width;
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}
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else
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{
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graph_baseline = graph50_baseline;
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channel_width = channel50_width;
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signal_width = channel50_width * 2;
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offset = (idx - 14 + 2) * channel50_width;
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}
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// trim rssi with RSSI_FLOOR
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if (rssi < RSSI_FLOOR)
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{
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rssi = RSSI_FLOOR;
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}
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// plot chart
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gfx->startWrite();
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gfx->writeEllipseHelper(offset, graph_baseline + 1, signal_width, height, 0b0011, color);
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gfx->endWrite();
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if (i == peak_id_list[idx])
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{
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// Print SSID, signal strengh and if not encrypted
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String ssid = _networkSsid[i];
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if (ssid.length() == 0)
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{
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ssid = _networkMac[i];
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}
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text_width = (ssid.length() + 6) * 6;
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if (text_width > w)
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{
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offset = 0;
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}
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else
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{
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offset -= signal_width;
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if ((offset + text_width) > w)
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{
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offset = w - text_width;
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}
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}
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gfx->setTextColor(color);
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gfx->setCursor(offset, graph_baseline - 10 - height);
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gfx->print(ssid);
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gfx->print('(');
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gfx->print(rssi);
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gfx->print(')');
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if (_networkEncr[i] == RTW_SECURITY_OPEN)
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{
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gfx->print('*');
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}
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}
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}
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}
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// print WiFi found
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gfx->setTextColor(WHITE);
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gfx->setCursor(2, banner_height);
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gfx->print(n);
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gfx->print(" networks");
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// draw 2.4 GHz graph base axle
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gfx->drawFastHLine(0, graph24_baseline, 320, WHITE);
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for (idx = 0; idx < 14; idx++)
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{
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channel = channel_legend[idx];
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offset = (idx + 2) * channel24_width;
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if (channel > 0)
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{
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gfx->setTextColor(channel_color[idx]);
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gfx->setCursor(offset - ((channel < 10) ? 3 : 6), graph24_baseline + 2);
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gfx->print(channel);
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}
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if (ap_count_list[idx] > 0)
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{
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gfx->setTextColor(LIGHTGREY);
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gfx->setCursor(offset - ((ap_count_list[idx] < 10) ? 3 : 6), graph24_baseline + 8 + 2);
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gfx->print(ap_count_list[idx]);
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}
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}
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// draw 5 GHz graph base axle
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gfx->drawFastHLine(0, graph50_baseline, 320, WHITE);
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for (idx = 14; idx < 71; idx++)
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{
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channel = channel_legend[idx];
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offset = (idx - 14 + 2) * channel50_width;
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if (channel > 0)
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{
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gfx->setTextColor(channel_color[idx]);
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gfx->setCursor(offset - ((channel < 100) ? 6 : 9), graph50_baseline + 2);
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gfx->print(channel);
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}
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if (ap_count_list[idx] > 0)
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{
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gfx->setTextColor(DARKGREY);
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gfx->setCursor(offset - ((ap_count_list[idx] < 10) ? 3 : 6), graph50_baseline + 8 + 2);
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gfx->print(ap_count_list[idx]);
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}
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}
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// Wait a bit before scanning again
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delay(SCAN_INTERVAL);
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}
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