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iothings:laboratoare:2025_code:lab7_1 [2025/11/05 18:55] dan.tudose created |
iothings:laboratoare:2025_code:lab7_1 [2025/11/05 19:16] (current) dan.tudose |
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| Line 104: | Line 104: | ||
| static int bootstrap_count = 0; | static int bootstrap_count = 0; | ||
| static bool model_ready = false; | static bool model_ready = false; | ||
| + | static bool stage_prompted[3] = {false, false, false}; | ||
| + | constexpr int BOOTSTRAP_STAGE_WINDOWS = 10; // ~20 s total per instruction phase | ||
| // ===== helpers ===== | // ===== helpers ===== | ||
| Line 118: | Line 120: | ||
| Serial.printf("feat: aMean=%.3f, aStd=%.3f, gMean=%.3f, gStd=%.3f\n", | Serial.printf("feat: aMean=%.3f, aStd=%.3f, gMean=%.3f, gStd=%.3f\n", | ||
| x.f[0], x.f[1], x.f[2], x.f[3]); | x.f[0], x.f[1], x.f[2], x.f[3]); | ||
| + | } | ||
| + | |||
| + | void prompt_bootstrap_stage() { | ||
| + | if (model_ready) { | ||
| + | return; | ||
| + | } | ||
| + | |||
| + | if (bootstrap_count < BOOTSTRAP_STAGE_WINDOWS && !stage_prompted[0]) { | ||
| + | Serial.println("Stage 1/3: move the board UP and DOWN for the first cluster."); | ||
| + | Serial.println("Collecting motion windows... keep moving!"); | ||
| + | stage_prompted[0] = true; | ||
| + | } else if (bootstrap_count >= BOOTSTRAP_STAGE_WINDOWS && | ||
| + | bootstrap_count < 2 * BOOTSTRAP_STAGE_WINDOWS && !stage_prompted[1]) { | ||
| + | Serial.println("Stage 2/3: move the board LEFT and RIGHT for the second cluster."); | ||
| + | Serial.println("Keep sweeping side-to-side until prompted again."); | ||
| + | stage_prompted[1] = true; | ||
| + | } else if (bootstrap_count >= 2 * BOOTSTRAP_STAGE_WINDOWS && | ||
| + | bootstrap_count < 3 * BOOTSTRAP_STAGE_WINDOWS && !stage_prompted[2]) { | ||
| + | Serial.println("Stage 3/3: hold the board STILL to capture the stationary cluster."); | ||
| + | Serial.println("Stay steady while we finish collecting samples."); | ||
| + | stage_prompted[2] = true; | ||
| + | } | ||
| } | } | ||
| Line 179: | Line 203: | ||
| Serial.println("IMU Activity Clustering (K-means, K=3)."); | Serial.println("IMU Activity Clustering (K-means, K=3)."); | ||
| - | Serial.println("Bootstrapping ~60 s of windows for unsupervised init..."); | + | Serial.println("Bootstrapping ~80 s of guided motion for unsupervised init..."); |
| + | prompt_bootstrap_stage(); | ||
| } | } | ||
| void loop() { | void loop() { | ||
| + | prompt_bootstrap_stage(); | ||
| + | |||
| Feature feat = compute_window_features(); | Feature feat = compute_window_features(); | ||
| print_feature(feat); | print_feature(feat); | ||
