mirror of
https://github.com/MarekZegare4/MeshCore-Solo.git
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feat(ui-lvgl): Diagnostics > Noise tab for RF noise hunting
The LoRa noise floor with the board's parts off one at a time, sweeps of 850-930 MHz, the mesh channel and a 7.8 kHz zoom on its loudest point; a slow cycle of the same states for a second radio beside the device; and a spike hunt over 864-876 MHz listing the lines over the floor and their spacing (how the I2S MCLK comb was found). Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
This commit is contained in:
Jakub
Claude Opus 5.5
@@ -5,9 +5,13 @@
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//
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// Single-TU fragment: included by ui-lvgl/UITask.cpp after DeviceScreen.h.
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#if defined(SEEED_WIO_TRACKER_L2)
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extern RADIO_CLASS radio; // variants/wio-tracker-l2/target.cpp (the noise sweep retunes it)
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#endif
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namespace diagview {
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enum : uint8_t { TAB_LIVE, TAB_SYSTEM, TAB_FONT, TAB_COUNT };
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enum : uint8_t { TAB_LIVE, TAB_SYSTEM, TAB_FONT, TAB_NOISE, TAB_COUNT };
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static uint8_t s_tab = TAB_LIVE; // kept across visits
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static lv_obj_t* s_list = nullptr;
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static const int EXTRA = 4; // GPS, power, last reset, last crash (L2 only)
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@@ -116,8 +120,284 @@ static lv_obj_t* pairLine(lv_obj_t* card, const char* name, lv_obj_t** in, lv_ob
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return r;
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}
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// Noise tab: the LoRa noise floor measured with the board's parts turned off
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// one at a time -- which of them is the one raising it (the L2 read ~25 dB
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// above the L1). Blocking, ~90 s: the main loop doesn't run meanwhile, so the
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// screen isn't redrawn and only what runs by itself is measured.
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enum : uint8_t { N_BL = 1, N_TOUCH = 2, N_GNSS = 4, N_GROVE = 8, N_CPU = 16, N_LCD = 32, N_SD = 64, N_SLEEP = 128 };
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struct NoiseStep { const char* name; uint8_t off; };
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static const NoiseStep NOISE_STEPS[] = {
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{ "Everything on", 0 }, { "Backlight off", N_BL }, { "Touch asleep", N_TOUCH },
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{ "Panel asleep", N_LCD }, { "GPS off", N_GNSS }, { "Grove port off", N_GROVE },
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{ "CPU at 80 MHz", N_CPU },
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{ "All of these off", N_BL | N_TOUCH | N_GNSS | N_GROVE | N_CPU | N_LCD },
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};
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// Then two sweeps: 850-930 MHz 1 MHz apart, and the mesh's frequency +-1.1
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// MHz 25 kHz apart. Flat is broadband noise (a power supply, the front end);
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// a spike is some clock's harmonic landing there.
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struct Sweep { float f0, step; int n; int16_t v[96]; };
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static Sweep s_wide = { 850.0f, 1.0f, 81, {} };
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static Sweep s_near = { 0, 0.025f, 91, {} };
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// Then +-125 kHz around the loudest of those, 5 kHz apart with the receiver
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// narrowed to 7.8 kHz: where exactly the spike is, and how wide.
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static Sweep s_zoom = { 0, 0.005f, 51, {} };
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static const int NOISE_N = sizeof(NOISE_STEPS) / sizeof(NOISE_STEPS[0]);
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// For a second radio next to this one (its noise floor read by eye): each
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// state held 15 s. The L2 radiates the noise (an L1 beside it read -96 dBm
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// instead of -108 with the L2 off), and is quiet in its bootloader.
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static const NoiseStep DETECT_STEPS[] = {
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{ "Everything on", 0 }, { "Backlight off", N_BL }, { "Panel asleep", N_LCD },
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{ "Touch asleep", N_TOUCH }, { "GPS off", N_GNSS }, { "SD card off", N_SD },
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{ "Grove port off", N_GROVE }, { "CPU at 80 MHz", N_CPU }, { "CPU light sleep", N_SLEEP },
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{ "All but sleep off", N_BL | N_LCD | N_TOUCH | N_GNSS | N_SD | N_GROVE | N_CPU },
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{ "Everything on again", 0 },
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};
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static const int DETECT_N = sizeof(DETECT_STEPS) / sizeof(DETECT_STEPS[0]);
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static const uint32_t DETECT_HOLD_MS = 15000;
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static void onDetectRun(lv_event_t* e) { (void)e; s_ui->diagNoiseDetect(); }
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// Spike hunt: one clean line (869.633 MHz, 10 kHz wide) sits in the mesh's
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// channel, from the ESP32 while awake. One frequency doesn't name the clock;
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// the spacing of its neighbours does (a clock's harmonics are a comb). So
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// 864-876 MHz 5 kHz apart through a 7.8 kHz receiver, and the lines standing
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// out of the floor listed.
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static const float HUNT_F0 = 864.0f, HUNT_STEP = 0.005f;
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static const int HUNT_N = 2401;
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static const int HUNT_MAX = 16;
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struct Spike { float f; int16_t dbm; };
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static Spike s_spikes[HUNT_MAX];
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static int s_spike_n = -1; // -1: not run
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static int16_t s_hunt_floor = 0;
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static void onSpikeHunt(lv_event_t* e) { (void)e; s_ui->diagSpikeHunt(); }
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static int16_t s_noise_med[NOISE_N], s_noise_lo[NOISE_N];
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static bool s_noise_have = false;
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static bool s_noise_usb = false;
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static lv_obj_t* s_noise_status = nullptr;
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static void onNoiseRun(lv_event_t* e) { (void)e; s_ui->diagNoiseRun(); }
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// A sweep as bars from -130 dBm up (1.5 px a dB), the step nearest the mesh's
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// frequency in the accent colour, then its quietest / loudest / mesh values.
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static void plotSweep(lv_obj_t* list, const char* title, const Sweep& sw, float mesh_f) {
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sectionTitle(list, title);
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int lo = 0, hi = 0;
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for (int i = 1; i < sw.n; i++) {
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if (sw.v[i] < sw.v[lo]) lo = i;
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if (sw.v[i] > sw.v[hi]) hi = i;
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}
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lv_obj_t* plot = lv_obj_create(list);
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lv_obj_remove_style_all(plot);
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lv_obj_set_size(plot, sw.n * 3, 100);
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lv_obj_set_style_bg_color(plot, lv_color_hex(theme::SURFACE), 0);
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lv_obj_set_style_bg_opa(plot, LV_OPA_COVER, 0);
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lv_obj_remove_flag(plot, LV_OBJ_FLAG_SCROLLABLE);
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int mesh_i = (int)lroundf((mesh_f - sw.f0) / sw.step);
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for (int i = 0; i < sw.n; i++) {
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int h = (sw.v[i] + 130) * 3 / 2;
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h = h < 1 ? 1 : (h > 100 ? 100 : h);
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lv_obj_t* bar = lv_obj_create(plot);
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lv_obj_remove_style_all(bar);
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lv_obj_set_size(bar, 2, h);
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lv_obj_set_pos(bar, i * 3, 100 - h);
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lv_obj_set_style_bg_color(bar, lv_color_hex(i == mesh_i ? theme::ACCENT : theme::TEXT_MUTED), 0);
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lv_obj_set_style_bg_opa(bar, LV_OPA_COVER, 0);
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}
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lv_obj_t* card = infoCard(list);
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char v[40];
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const int prec = sw.step < 0.01f ? 4 : (sw.step < 1 ? 3 : 0);
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snprintf(v, sizeof(v), "%.*f MHz: %d dBm", prec, sw.f0 + sw.step * lo, sw.v[lo]);
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infoRow(card, "Quietest", v);
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snprintf(v, sizeof(v), "%.*f MHz: %d dBm", prec, sw.f0 + sw.step * hi, sw.v[hi]);
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infoRow(card, "Loudest", v);
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if (mesh_i >= 0 && mesh_i < sw.n) {
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snprintf(v, sizeof(v), "%.*f MHz: %d dBm", prec, sw.f0 + sw.step * mesh_i, sw.v[mesh_i]);
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infoRow(card, "Mesh frequency", v);
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}
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}
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#if defined(SEEED_WIO_TRACKER_L2)
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// Only what changes from `prev` is touched: GPS power back on means its
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// reset, touch wake a pulse on its line.
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static void noiseApply(uint8_t off, uint8_t prev, bool gnss_was_on, uint32_t cpu_mhz, uint8_t bright) {
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uint8_t ch = off ^ prev;
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if (ch & N_LCD) { // the controller's sleep: its oscillator and charge pumps stop
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if (off & N_LCD) display.lgfxDevice()->sleep();
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else { display.lgfxDevice()->wakeup(); delay(120); display.setBrightness(bright); }
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}
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if (ch & N_BL) { if (off & N_BL) display.lgfxDevice()->setBrightness(0); else display.setBrightness(bright); }
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if (ch & N_TOUCH) { if (off & N_TOUCH) board.touchSleep(); else board.touchWake(); }
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if ((ch & N_GNSS) && gnss_was_on) board.setGnssPower(!(off & N_GNSS));
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if (ch & N_GROVE) board.setGrovePower(!(off & N_GROVE));
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if (ch & N_CPU) setCpuFrequencyMhz((off & N_CPU) ? 80 : cpu_mhz);
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if (ch & N_SD) { // unmounted and unpowered; back on, mounted again
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if (off & N_SD) { SD_MMC.end(); board.setSdPower(false); }
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else { board.setSdPower(true); delay(50); SD_MMC.setPins(2, 3, 1); SD_MMC.begin("/sdcard", true); }
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}
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}
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// 250 instantaneous RSSI readings over 5 s: the median, and the 10th
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// percentile (a packet on air only lifts the top).
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static void noiseSample(int16_t& med, int16_t& lo) {
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static const int N = 250;
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float v[N];
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for (int i = 0; i < N; i++) { v[i] = radio_driver.getCurrentRSSI(); delay(20); }
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std::sort(v, v + N);
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med = (int16_t)lroundf(v[N / 2]);
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lo = (int16_t)lroundf(v[N / 10]);
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}
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// The radio retuned step by step (50 readings each, the median), then put
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// back on the mesh's settings and receiving again.
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static void noiseSweep(Sweep& sw, const NodePrefs* p, float bw_khz = 0) {
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static const int K = 50;
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float v[K];
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if (bw_khz > 0) { radio.standby(); radio.setBandwidth(bw_khz); }
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for (int i = 0; i < sw.n; i++) {
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radio.standby();
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radio.setFrequency(sw.f0 + sw.step * i);
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radio.startReceive();
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delay(10);
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for (int k = 0; k < K; k++) { v[k] = radio.getRSSI(false); delay(3); }
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std::sort(v, v + K);
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sw.v[i] = (int16_t)lroundf(v[K / 2]);
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}
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radio.standby();
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if (p) radio_driver.setParams(p->freq, p->bw, p->sf, p->cr);
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radio.startReceive();
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}
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#endif
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} // namespace diagview
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void UITask::diagNoiseRun() {
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using namespace diagview;
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#if defined(SEEED_WIO_TRACKER_L2)
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bool gnss_on = board.gnssPowered();
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uint32_t cpu = getCpuFrequencyMhz();
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uint8_t bright = _prefs ? _prefs->display_brightness : 3;
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s_noise_usb = board.isExternalPowered();
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for (int i = 0; i < NOISE_N; i++) {
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if (s_noise_status) {
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char t[48];
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snprintf(t, sizeof(t), "Measuring %d of %d: %s", i + 1, NOISE_N, NOISE_STEPS[i].name);
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lv_label_set_text(s_noise_status, t);
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lv_refr_now(NULL);
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}
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uint8_t off = NOISE_STEPS[i].off;
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noiseApply(off, 0, gnss_on, cpu, bright);
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delay(1500); // rails, clocks and the receiver's AGC settle
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noiseSample(s_noise_med[i], s_noise_lo[i]);
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noiseApply(0, off, gnss_on, cpu, bright);
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}
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if (s_noise_status) {
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lv_label_set_text(s_noise_status, "Sweeping 850-930 MHz");
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lv_refr_now(NULL);
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}
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noiseSweep(s_wide, _prefs);
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if (_prefs) {
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if (s_noise_status) {
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lv_label_set_text(s_noise_status, "Sweeping around the mesh frequency");
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lv_refr_now(NULL);
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}
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s_near.f0 = _prefs->freq - s_near.step * (s_near.n / 2);
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noiseSweep(s_near, _prefs);
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int hi = 0;
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for (int i = 1; i < s_near.n; i++) if (s_near.v[i] > s_near.v[hi]) hi = i;
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if (s_noise_status) {
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lv_label_set_text(s_noise_status, "Zooming in on the loudest");
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lv_refr_now(NULL);
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}
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s_zoom.f0 = s_near.f0 + s_near.step * hi - s_zoom.step * (s_zoom.n / 2);
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noiseSweep(s_zoom, _prefs, 7.8f);
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}
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s_noise_have = true;
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buildDiag();
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#else
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showToast("Only on the device");
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#endif
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}
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void UITask::diagNoiseDetect() {
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using namespace diagview;
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#if defined(SEEED_WIO_TRACKER_L2)
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auto show = [&](int i, int n, const char* name) { // shown before the state (dark ones hide it)
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if (!s_noise_status) return;
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char t[48];
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snprintf(t, sizeof(t), "%d/%d %s", i + 1, n, name);
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lv_label_set_text(s_noise_status, t);
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lv_refr_now(NULL);
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};
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bool gnss_on = board.gnssPowered();
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uint32_t cpu = getCpuFrequencyMhz();
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uint8_t bright = _prefs ? _prefs->display_brightness : 3;
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for (int i = 0; i < DETECT_N; i++) {
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uint8_t off = DETECT_STEPS[i].off;
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show(i, DETECT_N, DETECT_STEPS[i].name);
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if (off & N_SLEEP) {
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esp_sleep_enable_timer_wakeup((uint64_t)DETECT_HOLD_MS * 1000);
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if (esp_light_sleep_start() != ESP_OK) delay(DETECT_HOLD_MS); // refused (a radio busy): hold awake
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continue;
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}
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noiseApply(off, 0, gnss_on, cpu, bright);
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delay(DETECT_HOLD_MS);
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noiseApply(0, off, gnss_on, cpu, bright);
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}
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buildDiag();
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showToast("Cycle done");
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#else
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showToast("Only on the device");
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#endif
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}
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void UITask::diagSpikeHunt() {
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using namespace diagview;
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#if defined(SEEED_WIO_TRACKER_L2)
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int16_t* v = psramBuf<int16_t>(HUNT_N);
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if (!v) { showToast("Out of memory"); return; }
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if (s_noise_status) {
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lv_label_set_text(s_noise_status, "Hunting spikes 864-876 MHz");
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lv_refr_now(NULL);
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}
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radio.standby();
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radio.setBandwidth(7.8f);
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float r[7];
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for (int i = 0; i < HUNT_N; i++) {
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radio.standby();
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radio.setFrequency(HUNT_F0 + HUNT_STEP * i);
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radio.startReceive();
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delay(12); // 4 ms read the register's floor (-127.5): no reading yet
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for (int k = 0; k < 7; k++) { r[k] = radio.getRSSI(false); delay(3); }
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std::sort(r, r + 7);
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v[i] = (int16_t)lroundf(r[3]);
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}
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radio.standby();
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if (_prefs) radio_driver.setParams(_prefs->freq, _prefs->bw, _prefs->sf, _prefs->cr);
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radio.startReceive();
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// The floor: the median. A line: 8 dB over it, the top within +-3 steps.
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int16_t* tmp = psramBuf<int16_t>(HUNT_N);
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if (tmp) { memcpy(tmp, v, HUNT_N * sizeof(int16_t)); std::sort(tmp, tmp + HUNT_N); s_hunt_floor = tmp[HUNT_N / 2]; free(tmp); }
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s_spike_n = 0;
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for (int i = 3; i < HUNT_N - 3; i++) {
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if (v[i] < s_hunt_floor + 8) continue;
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bool top = true;
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for (int d = -3; d <= 3 && top; d++) if (d && (v[i + d] > v[i] || (d < 0 && v[i + d] == v[i]))) top = false;
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if (!top) continue;
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Spike sp = { HUNT_F0 + HUNT_STEP * i, v[i] };
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if (s_spike_n < HUNT_MAX) s_spikes[s_spike_n++] = sp;
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else { // full: replace the weakest if this one is stronger
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int w = 0;
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for (int k = 1; k < HUNT_MAX; k++) if (s_spikes[k].dbm < s_spikes[w].dbm) w = k;
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if (sp.dbm > s_spikes[w].dbm) s_spikes[w] = sp;
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}
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}
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std::sort(s_spikes, s_spikes + s_spike_n, [](const Spike& a, const Spike& b) { return a.f < b.f; });
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free(v);
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buildDiag();
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#else
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showToast("Only on the device");
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#endif
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}
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static void onOpenDiag(lv_event_t* e) { (void)e; s_ui->showDiag(); }
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static void onDiagTab(lv_event_t* e) {
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s_ui->diagTab((int)lv_buttonmatrix_get_selected_button((lv_obj_t*)lv_event_get_target(e)));
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@@ -142,7 +422,7 @@ void UITask::buildDiag() {
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lv_obj_set_style_pad_row(body, 4, 0);
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if (s_tab == TAB_LIVE && _header) headerButton(_header, LV_SYMBOL_REFRESH " Reset", onDiagReset, 4, NULL);
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static const char* TABS[] = { "Live", "System", "Font", "" };
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static const char* TABS[] = { "Live", "System", "Font", "Noise", "" };
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lv_obj_t* tabs = segmented(body, TABS, s_tab, lv_pct(100), 34);
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lv_obj_set_style_bg_color(tabs, lv_color_hex(theme::SURFACE), LV_PART_ITEMS);
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lv_obj_add_event_cb(tabs, onDiagTab, LV_EVENT_VALUE_CHANGED, NULL);
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@@ -174,6 +454,90 @@ void UITask::buildDiag() {
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return;
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}
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s_noise_status = nullptr;
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if (s_tab == TAB_NOISE) {
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lv_obj_t* t = label(s_list, "LoRa noise floor with parts of the board off, one at a time (about 90 s; "
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"the screen goes dark for a moment). Lower is better; ~-115 dBm is a quiet receiver.",
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THEME_FONT_SMALL, theme::TEXT_MUTED);
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lv_label_set_long_mode(t, LV_LABEL_LONG_WRAP);
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lv_obj_set_width(t, LV_PCT(100));
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lv_obj_t* b = lv_button_create(s_list);
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lv_obj_set_size(b, LV_PCT(100), 40);
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lv_obj_set_style_shadow_width(b, 0, 0);
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lv_obj_set_style_radius(b, theme::RADIUS, 0);
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lv_obj_set_style_bg_color(b, lv_color_hex(theme::ACCENT_DIM), 0);
|
||||
lv_obj_add_event_cb(b, onNoiseRun, LV_EVENT_CLICKED, NULL);
|
||||
s_noise_status = label(b, LV_SYMBOL_PLAY " Run test", THEME_FONT_BODY, theme::TEXT);
|
||||
lv_obj_center(s_noise_status);
|
||||
lv_obj_t* t2 = label(s_list, "Second radio: an L1 beside this one shows the noise this device sends out. "
|
||||
"Each state is held 15 s (under 3 min), its name shown first; read the L1's noise floor.",
|
||||
THEME_FONT_SMALL, theme::TEXT_MUTED);
|
||||
lv_label_set_long_mode(t2, LV_LABEL_LONG_WRAP);
|
||||
lv_obj_set_width(t2, LV_PCT(100));
|
||||
lv_obj_t* b2 = lv_button_create(s_list);
|
||||
lv_obj_set_size(b2, LV_PCT(100), 40);
|
||||
lv_obj_set_style_shadow_width(b2, 0, 0);
|
||||
lv_obj_set_style_radius(b2, theme::RADIUS, 0);
|
||||
lv_obj_set_style_bg_color(b2, lv_color_hex(theme::SURFACE), 0);
|
||||
lv_obj_add_event_cb(b2, onDetectRun, LV_EVENT_CLICKED, NULL);
|
||||
lv_obj_t* l2 = label(b2, LV_SYMBOL_LOOP " Slow cycle for a second radio", THEME_FONT_BODY, theme::TEXT);
|
||||
lv_obj_center(l2);
|
||||
lv_obj_t* b3 = lv_button_create(s_list);
|
||||
lv_obj_set_size(b3, LV_PCT(100), 40);
|
||||
lv_obj_set_style_shadow_width(b3, 0, 0);
|
||||
lv_obj_set_style_radius(b3, theme::RADIUS, 0);
|
||||
lv_obj_set_style_bg_color(b3, lv_color_hex(theme::SURFACE), 0);
|
||||
lv_obj_add_event_cb(b3, onSpikeHunt, LV_EVENT_CLICKED, NULL);
|
||||
lv_obj_t* l3 = label(b3, LV_SYMBOL_EYE_OPEN " Spike hunt 864-876 MHz (~2.5 min)", THEME_FONT_BODY, theme::TEXT);
|
||||
lv_obj_center(l3);
|
||||
if (s_spike_n >= 0) {
|
||||
char t[48];
|
||||
snprintf(t, sizeof(t), "SPIKES (floor %d dBm)", s_hunt_floor);
|
||||
sectionTitle(s_list, t);
|
||||
lv_obj_t* card = infoCard(s_list);
|
||||
if (s_hunt_floor <= -127) infoRow(card, "Invalid", "readings at the register's floor");
|
||||
else if (!s_spike_n) infoRow(card, "None", "nothing 8 dB over the floor");
|
||||
for (int i = 0; i < s_spike_n; i++) {
|
||||
char k[24], v[32];
|
||||
snprintf(k, sizeof(k), "%.3f MHz", s_spikes[i].f);
|
||||
if (i) snprintf(v, sizeof(v), "%d dBm +%.0f kHz", s_spikes[i].dbm, (s_spikes[i].f - s_spikes[i - 1].f) * 1000);
|
||||
else snprintf(v, sizeof(v), "%d dBm", s_spikes[i].dbm);
|
||||
infoRow(card, k, v);
|
||||
}
|
||||
}
|
||||
if (s_noise_have) {
|
||||
lv_obj_t* card = infoCard(s_list);
|
||||
char v[40];
|
||||
for (int i = 0; i < NOISE_N; i++) {
|
||||
int d = s_noise_med[i] - s_noise_med[0];
|
||||
if (i == 0) snprintf(v, sizeof(v), "%d dBm (low %d)", s_noise_med[i], s_noise_lo[i]);
|
||||
else snprintf(v, sizeof(v), "%d dBm (%+d)", s_noise_med[i], d);
|
||||
infoRow(card, NOISE_STEPS[i].name, v, i && d <= -3 ? theme::OK : theme::TEXT);
|
||||
}
|
||||
infoRow(card, "Powered from", s_noise_usb ? "USB" : "battery");
|
||||
float mesh_f = _prefs ? _prefs->freq : 0;
|
||||
plotSweep(s_list, "850 - 930 MHz", s_wide, mesh_f);
|
||||
if (s_near.f0 > 0) {
|
||||
char t[40];
|
||||
snprintf(t, sizeof(t), "%.3f MHz +- 1.1", mesh_f);
|
||||
plotSweep(s_list, t, s_near, mesh_f);
|
||||
}
|
||||
if (s_zoom.f0 > 0) {
|
||||
char t[48];
|
||||
float c = s_zoom.f0 + s_zoom.step * (s_zoom.n / 2);
|
||||
snprintf(t, sizeof(t), "%.3f MHz +- 125 kHz (7.8 kHz wide)", c);
|
||||
plotSweep(s_list, t, s_zoom, mesh_f);
|
||||
int hi = 0, wide = 0;
|
||||
for (int i = 1; i < s_zoom.n; i++) if (s_zoom.v[i] > s_zoom.v[hi]) hi = i;
|
||||
for (int i = 0; i < s_zoom.n; i++) if (s_zoom.v[i] >= s_zoom.v[hi] - 6) wide++;
|
||||
lv_obj_t* card = infoCard(s_list);
|
||||
char v2[40];
|
||||
snprintf(v2, sizeof(v2), "%d kHz (within 6 dB of the top)", wide * 5);
|
||||
infoRow(card, "Spike width", v2);
|
||||
}
|
||||
}
|
||||
return;
|
||||
}
|
||||
lv_obj_t* card = infoCard(s_list);
|
||||
if (s_tab == TAB_FONT) { // "Latin ABCabc": the script, then its sample
|
||||
diag::Line lines[diag::MAX_LINES];
|
||||
|
||||
@@ -265,6 +265,9 @@ public:
|
||||
void diagTab(int tab);
|
||||
void diagResetPopup();
|
||||
void diagReset();
|
||||
void diagNoiseRun();
|
||||
void diagNoiseDetect();
|
||||
void diagSpikeHunt();
|
||||
void showCompass();
|
||||
void favTap(int slot);
|
||||
void favHold(int slot);
|
||||
|
||||
@@ -68,6 +68,8 @@ public:
|
||||
expWritePin(EXP_PIN_GNSS_EN, LOW);
|
||||
}
|
||||
}
|
||||
// microSD rail (unmount first)
|
||||
void setSdPower(bool on) { expWritePin(EXP_PIN_TF_EN, on); }
|
||||
// Grove expansion port rail (nothing on-board depends on it)
|
||||
void setGrovePower(bool on) { expWritePin(EXP_PIN_GROVE_EN, on); }
|
||||
|
||||
|
||||
Reference in New Issue
Block a user