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Chip-cn-dat/Espressif-dat/ESP32-dat/ESP32-modules-dat/ESP32-module-clone-dat/ESP32-module-clone-dat.md
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@@ -1,13 +1,19 @@
1 1
2 2
# ESP32-module-clone-dat
3 3
4
-- XXSR69
4
+all RSSI test run in 3 meters wifi connection distance, same environment.
5
+
6
+## XXSR69 series RSSI test
5 7
6 8
![](2025-10-23-14-02-44.png)
7 9
8
-- middle == ESP32-D0WD-V3 (revision v3.1)
10
+### middle == ESP32-D0WD-V3 (revision v3.1)
11
+
12
+![](2025-10-23-15-54-18.png)
9 13
10
-- right == ESP32-D0WD-V3 (revision v3.1)
14
+- 49 Dbm
15
+
16
+### right == ESP32-D0WD-V3 (revision v3.1)
11 17
12 18
```
13 19
Connected to ESP32 on COM31:
... ...
@@ -24,22 +30,60 @@ MAC: 20:e7:c8:9f:30:3c
24 30
Hard resetting via RTS pin...
25 31
```
26 32
27
-- left == unreadable ==
33
+![](2025-10-23-15-55-06.png)
34
+
35
+- 52 ~ 53 Dbm
36
+
37
+### left == unreadable == defective unit == can not upload code
38
+
28 39
```
29 40
Connected to ESP32 on COM31:
30 41
31 42
A fatal error occurred: Invalid head of packet (0x65): Possible serial noise or corruption.
32 43
```
33
-- [[esptool-dat]]
34 44
35
-- [[ESP32-chip-dat]]
45
+![](2025-10-23-15-53-29.png)
36 46
37 47
38
-## close look
48
+
49
+### close look
39 50
40 51
![](2025-10-23-15-10-36.png)
41 52
53
+## other more old versions
54
+
55
+X1
56
+
57
+![](2025-10-23-15-55-39.png)
58
+
59
+![](2025-10-23-15-55-51.png)
60
+
61
+- 58 Dbm
62
+
63
+![](2025-10-23-15-58-04.png)
64
+
65
+
66
+
67
+X2
68
+
69
+![](2025-10-23-15-56-16.png)
70
+
71
+![](2025-10-23-16-00-34.png)
72
+
73
+- 93 ~ 96 Dbm
74
+
75
+
42 76
43 77
## ref
44 78
45
-- [[NWI1100-dat]] - [[esp32-modules-dat]]
... ...
\ No newline at end of file
0
+- [[NWI1100-dat]] - [[esp32-modules-dat]]
1
+
2
+- [[signal-dat]]
3
+
4
+
5
+
6
+
7
+- [[esptool-dat]]
8
+
9
+- [[ESP32-chip-dat]]
10
+
Chip-cn-dat/chip-cn-dat.md
... ...
@@ -9,7 +9,7 @@
9 9
10 10
- [[beken-dat]]
11 11
12
-- [[Espressif-dat]] - [[ESP32-dat]] - [[ESP32-S3-dat]] - [[ESP32-C3-dat]] - [[ESP32-P4-dat]]
12
+- [[Espressif-dat]] - [[ESP32-dat]] - [[ESP32-S3-dat]] - [[ESP32-C3-dat]] - [[ESP32-P4-dat]] - [[esp32-modules-dat]]
13 13
14 14
- [[ESP8266-dat]] - [[esp8266-modules-dat]] - [[ESP8266-board-dat]]
15 15
Tech-dat/signal-dat/signal-strength-test-dat/signal-strength-test-dat.md
... ...
@@ -0,0 +1,101 @@
1
+# signal-strength-test-dat
2
+
3
+
4
+
5
+
6
+
7
+## WIFI
8
+
9
+## 🧭 1. Quick Method (Using Built-in Tools)
10
+
11
+### Windows
12
+
13
+1. Press `Win + R`, type `cmd`, and press Enter.
14
+2. Run:
15
+ ```bash
16
+ netsh wlan show interfaces
17
+ ```
18
+3. Look for Signal — shown as a percentage (e.g. Signal : 85%).
19
+
20
+| Signal % | Quality |
21
+|----------|-----------|
22
+| 100–80% | Excellent |
23
+| 80–60% | Good |
24
+| 60–40% | Fair |
25
+| <40% | Weak |
26
+
27
+---
28
+
29
+### macOS
30
+
31
+- Hold Option and click the Wi-Fi icon in the top bar.
32
+- Find RSSI (Received Signal Strength Indicator).
33
+
34
+| RSSI (dBm) | Quality |
35
+|------------|-----------|
36
+| −30 | Excellent |
37
+| −50 | Good |
38
+| −70 | Poor |
39
+| <−80 | Unusable |
40
+
41
+---
42
+
43
+### Android
44
+
45
+- Go to Settings → About Phone → Status → Wi-Fi Signal Strength,
46
+- Or use an app like WiFi Analyzer to see dBm and channel info.
47
+
48
+---
49
+
50
+### iPhone
51
+
52
+- Install Airport Utility.
53
+- Enable “Wi-Fi Scanner” in Settings → Airport Utility.
54
+- Open Airport Utility → Wi-Fi Scan → Start.
55
+- View the RSSI values in dBm.
56
+
57
+---
58
+
59
+## 🧪 2. Advanced Tools
60
+
61
+### Desktop Tools
62
+
63
+- inSSIDer
64
+- NetSpot
65
+- Acrylic Wi-Fi Home
66
+- WiFi Explorer
67
+
68
+### Mobile Apps
69
+
70
+- WiFi Analyzer (Android)
71
+- Fing
72
+- NetSpot
73
+- Network Analyzer
74
+
75
+> These display dBm, channel overlap, and throughput data.
76
+
77
+---
78
+
79
+## 📶 3. Physical Testing
80
+
81
+- Walk around your space with the analyzer open.
82
+- Observe how signal strength changes.
83
+- Use a Wi-Fi heatmap to visualize strong and weak areas — helpful for router or mesh placement optimization.
84
+
85
+---
86
+
87
+## 📊 Signal Strength Reference
88
+
89
+| Signal (dBm) | Quality Description | Expected Performance |
90
+|----------------|-------------------------|-------------------------------------|
91
+| −30 to −50 | Excellent | Maximum speed, stable connection |
92
+| −51 to −60 | Good | Fast, reliable |
93
+| −61 to −70 | Fair | Usable, may slow down |
94
+| −71 to −80 | Weak | Lag, frequent drops |
95
+| <−80 | Very Poor/Unusable | Likely to disconnect |
96
+
97
+
98
+
99
+## ref
100
+
101
+- [[signal-dat]] - [[network-dat]]
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\ No newline at end of file