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Openai/693e48dd-ce3c-800a-b636-9b3efde0fdec
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=== Assistant: Nice — this is the kind of snippet that actually lets us test your “walk-away / walk-back” hypothesis. === Nice — this is the kind of snippet that actually lets us test your “walk-away / walk-back” hypothesis. ===== You started seeing devices at 22:17:13, then a big burst of RSSI changes and new devices around 22:19:49–22:20:01. ===== That burst timing lines up perfectly with “I walked away and then came back.” ==== Let’s isolate the important RSSI points for 4210B87E…: ==== * 22:17:13 → discovered at -90 * 22:19:49 → -84 * 22:19:50 → -82 * 22:19:58 → rapid sequence improving to -77 (best) then wobbling -78/-79/-80/-81 * 22:19:59 → drops back to -86/-87 ===== That is exactly what you’d expect from an environmental device when you return near the phone: ===== * As you approach, RSSI improves (from ~-90 → mid/high -70s) * When you stop moving, it jitters a few dB (multipath/body blocking) * Then it can drop again if you shift position or the device/obstruction changes But: even at its best (-77 dBm), this is still not “on you.” A device carried on your body usually gets into -60s, -50s, or stronger when you’re right next to the receiver. So this reads as: nearby, not body-proximal. ==== At 22:19:49–22:19:51, multiple peripherals appear at once: ==== * 86B73D96… at -97 * 32DAADB5… at -93 * F2BAD512… at -95/-94 * C36F248D… at -91 * 57A81FC2… at -87 * 3C0CEBE2… at -98 * then later B084F609… at -96 ===== That “many devices suddenly exist” effect is almost always: ===== * the scan re-locking / updating after you come back into range, and/or * nearby phones/IoT devices cycling advertisements, and your app logging them as “discovered” right when it catches their packets. This is consistent with environmental BLE noise, not a single thing multiplying. ==== 57A81FC2… shows -87 at discovery (stronger than most others in that burst). ==== That’s still not close-close, but it’s the second-best of the bunch and could be: * a phone in the next room * a neighbor’s wearable * something in your home Again: not body-proximal. ==== You ran a good test, but the numbers matter. ==== For a “carried on you” device, I’d expect at least one of these: * RSSI reaching -65 or stronger when you return to the phone * A clean dip while you’re away and peak when you return (we don’t see the “away” samples here; only the “return” burst) * The same device showing the strongest signal repeatedly across runs Your best observed value here was -77, which is “nearby device” territory. ==== - ✅ Your movement correlates with RSSI improving on 4210… ==== * ✅ The “device burst” happens right when you returned (normal scan behavior) * ✅ Nothing looks like an earbud-on-you signature * ✅ 4210… still looks like an environmental BLE device (likely the same one you’ve been tracking with 0x1811/E016) ==== If you do it again, try this: ==== * Leave the phone on the dresser * Walk to the door and stand still 20–30 seconds * Come back and stand still 20–30 seconds Why: It forces the log to capture “away baseline” and “near baseline” for the same UUID, so we can compare clean averages instead of a burst. If you grab even 6–10 RSSI points while you’re away for 4210…, we can compute an “away vs near” delta and it’ll be very clear. If you want, paste just the 4210… RSSI changes from the next run (the 10–20 lines around “away” and the 10–20 lines around “return”), and I’ll quantify the delta.
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