BOM-DAT/coil-dat/2025-10-07-17-45-56.png
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Binary files /dev/null and b/BOM-DAT/coil-dat/2025-10-07-17-45-56.png differ
BOM-DAT/coil-dat/coil-dat.md
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@@ -2,6 +2,17 @@
2 2
# coil-dat
3 3
4 4
5
+## coil wireless charge
6
+
7
+![](2025-10-07-17-45-56.png)
8
+
9
+47*32mm -- 12.6uH
10
+
11
+## coil magenetic
12
+
13
+- [[coilgun-dat]]
14
+
15
+
5 16
材质：铜漆包线
6 17
线径：0.49毫米
7 18
圈数：500圈
... ...
@@ -10,4 +21,11 @@
10 21
73克
11 22
12 23
13
-![](2025-10-02-16-08-53.png)
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\ No newline at end of file
0
+![](2025-10-02-16-08-53.png)
1
+
2
+
3
+
4
+
5
+## ref
6
+
7
+- [[coil]] - [[BOM]]
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\ No newline at end of file
Board-dat/Board-DAT.md
... ...
@@ -370,7 +370,7 @@ lora modules - https://www.electrodragon.com/product/sx1278-lora-wireless-transc
370 370
371 371
- [[NWL1116-dat]]
372 372
373
-
373
+[[NRF24L01-dat]] - [[NWL1010-dat]] - [[NWL1050-dat]]
374 374
375 375
### NWI
376 376
- [[NWI1050-DAT]] - [[NWI1053-dat]] - [[NWI1070-DAT]]
Board-dat/IOD/IOD1001-dat/IOD1001-dat.md
... ...
@@ -27,4 +27,6 @@
27 27
28 28
- [[IOD1001-dat]] - [[IOD1003-dat]]
29 29
30
-- [[I2C-dat]] - [[OLED-dat]]
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\ No newline at end of file
0
+- [[I2C-dat]] - [[OLED-dat]]
1
+
2
+- [[IOD1001]]
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\ No newline at end of file
Board-dat/OPM/OPM1168-dat/OPM1168-dat.md
... ...
@@ -1,5 +1,5 @@
1 1
2
-# OPM1168 dat
2
+# OPM1168-dat
3 3
4 4
5 5
BQ51050 supports 4.2V lithium battery up to 1A charge management.
... ...
@@ -12,23 +12,21 @@ BQ51050 supports 4.2V lithium battery up to 1A charge management.
12 12
- seconds two pads right = - negative GND
13 13
14 14
15
+## demo
15 16
16
-## charge current
17
+https://www.youtube.com/shorts/D4PBTednAjU
17 18
18
-Where
19
-- IBULK is the programmed battery charge current during fast charge mode. When referring to the application diagram shown in Figure 32,
20
-- RILIM is the sum of RFOD and R1 (the total resistance from the ILIM pin to PGND).
21 19
22
-https://www.ti.com/lit/ds/symlink/bq51050b.pdf
23 20
24 21
25 22
26
-## demo
27
-
28
-https://www.youtube.com/shorts/D4PBTednAjU
29
-
30 23
## ref
31 24
32 25
- [[wireless-charge-dat]] - [[TI-power-dat]]
33 26
34
-- [[OPM1168]]
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\ No newline at end of file
0
+- [[BQ51050-dat]]
1
+
2
+- [[coil-dat]]
3
+
4
+
5
+- [[OPM1168]] - [[OPN1168-fab]]
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\ No newline at end of file
Board-dat/OPM/OPM1175-dat/OPM1175-dat.md
... ...
@@ -28,4 +28,4 @@ MOQ 50pcs
28 28
29 29
- [[microne-dat]]
30 30
31
-
31
+- [[OPM1175]]
Board-dat/STH/STH1023-dat/STH1023-dat.md
... ...
@@ -125,7 +125,7 @@ A4 03 09 05 0001008B08 49
125 125
126 126
![](2025-07-24-13-14-49.png)
127 127
128
-- Use [GY_UVI.zip] for Windows.
128
+- Use [[GY_UVI.zip]] for Windows.
129 129
- Select the COM port connected to the module, baud rate, and ID (default 0xA4, or 0x00 if unknown).
130 130
- **Config reg:** This section corresponds to configurable registers. After changing any register, press Enter or click elsewhere to write the config to the module.
131 131
- **Read reg:** This section is for reading module registers. Set the start register and number of registers to read, then click "read" to send the command.
... ...
@@ -145,14 +145,14 @@ A4 03 09 05 0001008B08 49
145 145
146 146
## 6. Arduino Example
147 147
148
-- See [arduino_usart.ino] for sample code.
148
+- See [[arduino_usart.ino]] for sample code.
149 149
150 150
---
151 151
152 152
## Related
153 153
154
-- [VEML6070-dat]
155
-- [sensor-UV-light-dat]
154
+- [[VEML6070-dat]]
155
+- [[sensor-UV-light-dat]]
156 156
d:每次查询，进行一次a步骤，即每次发送读寄存器指令帧；
157 157
158 158
Chip-cn-dat/microne-dat/ME2108-dat/ME2108-dat.md
... ...
@@ -3,6 +3,9 @@
3 3
4 4
- [[Nanjing-Micro-One-Elec-ME2108A33M3G.pdf]]
5 5
6
+DC/DC Step up Converter ME2108 Series
7
+
8
+
6 9
## Features:
7 10
8 11
- **Low ripple and low noise**
Chip-cn-dat/microne-dat/microne-dat.md
... ...
@@ -5,7 +5,9 @@
5 5
6 6
- [[OPM1175-dat]]
7 7
8
-- [[ME6208-dat]]
8
+- [[ME6208-dat]] == 150 mA, high input voltage LDO Linear Regulators ME6208 Series
9
+
10
+
9 11
- [[ME2108-dat]]
10 12
11 13
Chip-dat/TI-dat/TI-Power-dat/BQ51050-dat/2025-10-07-17-27-12.png
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Chip-dat/TI-dat/TI-Power-dat/BQ51050-dat/BQ51050-dat.md
... ...
@@ -0,0 +1,37 @@
1
+
2
+# BQ51050-dat
3
+
4
+- [[OPM1168-dat]]
5
+
6
+bq5105xB High-Efficiency Qi v1.2-Compliant Wireless Power Receiver and Battery Charger
7
+
8
+
9
+
10
+## SCH and function
11
+
12
+![](2025-10-07-17-27-12.png)
13
+
14
+- TERM 2.4K for 10% termination, so stop at 100M A
15
+
16
+- TS/CTRL: Temperature Sense (TS) and Control (CTRL) pin functionality
17
+
18
+## charge current Where
19
+
20
+- I_BULK is the programmed battery charge current during fast charge mode. When referring to the application diagram shown in Figure 32,
21
+
22
+- R_ILIM is the sum of RFOD and R1 (the total resistance from the ILIM pin to PGND).
23
+
24
+
25
+datasheet ==
26
+https://www.ti.com/lit/ds/symlink/bq51050b.pdf
27
+
28
+
29
+
30
+
31
+
32
+
33
+## ref
34
+
35
+- [[wireless-charge-dat]]
36
+
37
+- [[BQ51050]]
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app-dat/DSO-dat/DSO-dat.md
... ...
@@ -0,0 +1,6 @@
1
+
2
+# DSO-dat
3
+
4
+DSO is Digital Storage Oscilloscope, it is a very useful tool for electronics engineers and hobbyists. It can display and analyze electronic signals in real time.
5
+
6
+
app-dat/RC-apps-dat/FPV-dat/FPV-dat.md
... ...
@@ -409,6 +409,77 @@ In FPV drones, the **wheelbase** refers to the **diagonal distance between the c
409 409
410 410
- [[drone-maker-dat]]
411 411
412
+
413
+
414
+## FPV tech
415
+
416
+### Multi-Sensor Fusion
417
+- **IMU (Inertial Measurement Unit)**: Detects acceleration and angular velocity changes.
418
+- **GPS / GLONASS / Galileo**: Provides precise global positioning for drift correction.
419
+- **Barometer**: Measures altitude changes due to vertical wind.
420
+- **Vision Positioning System (VPS)**: Assists in holding position when GPS is weak or unavailable.
421
+
422
+All sensor data are fused together for real-time position and attitude correction.
423
+
424
+
425
+Drones estimate wind speed using GPS drift and IMU feedback.
426
+
427
+If it exceeds safe thresholds (e.g., >12 m/s), the system:
428
+
429
+- Limits tilt angles.
430
+- Warns the pilot.
431
+- Plans **energy-efficient return routes** considering wind direction.
432
+
433
+
434
+
435
+### 🧰 How to Improve Betaflight Wind Handling
436
+
437
+If you want DJI-like stability in a Betaflight-based drone, you can try:
438
+
439
+- **Use “Angle” or “Horizon” mode** — these self-level automatically.
440
+- **Tune PID properly** — higher D-term helps fight oscillations caused by gusts.
441
+- **Use a heavier frame** — more mass = less effect from wind.
442
+- **Add GPS + switch to iNav or Ardupilot** — they support position hold and altitude hold.
443
+- **Use high-quality ESCs and motors** for faster response.
444
+
445
+
446
+
447
+### DJI VS betaflight
448
+
449
+
450
+# DJI vs Betaflight Comparison Table
451
+
452
+| Feature / Capability | **DJI Drones** | **Betaflight (Typical FPV Quad)** | Explanation |
453
+|-----------------------|----------------|----------------------------------|--------------|
454
+| **Main Purpose** | Aerial photography, autonomous flight | FPV racing, freestyle acrobatics | DJI focuses on automation and stability, Betaflight on agility and control. |
455
+| **Flight Control Algorithm** | PID + MPC (Model Predictive Control) + Sensor Fusion | PID only | DJI uses predictive and adaptive control; Betaflight uses classic PID. |
456
+| **Sensor Fusion** | Yes (IMU + GPS + Barometer + Vision Sensors) | Limited (IMU only) | DJI fuses multiple sensors for precision control; Betaflight relies mainly on IMU. |
457
+| **GPS Position Hold** | ✅ Built-in | ⚠️ Requires external GPS + iNav/Ardupilot | Betaflight doesn’t handle position hold natively. |
458
+| **Vision Positioning (VPS)** | ✅ Yes | ❌ No | DJI uses downward cameras for indoor stability. |
459
+| **Altitude Hold** | ✅ Precise (barometer + GPS + VPS) | ⚠️ Basic (Angle mode only) | DJI maintains accurate height even in wind; Betaflight does not. |
460
+| **Wind Resistance / Compensation** | ✅ Automatic | ❌ Manual (pilot controlled) | DJI detects and corrects wind drift automatically. |
461
+| **Return to Home (RTH)** | ✅ Smart, automatic | ⚠️ Only with GPS add-ons | DJI calculates safe routes; Betaflight doesn’t. |
462
+| **Wind Estimation & Feedforward Control** | ✅ Yes | ❌ No | DJI predicts wind disturbance and adjusts preemptively. |
463
+| **IMU Attitude Stabilization** | ✅ Yes | ✅ Yes | Both can stabilize attitude, but DJI integrates more sensors. |
464
+| **Motor Control Response** | High-speed ESCs with adaptive algorithms | High-speed ESCs (pilot-driven) | DJI adjusts motor speeds automatically; Betaflight follows pilot commands. |
465
+| **User Control Focus** | Semi/fully autonomous | Fully manual | DJI reduces workload; Betaflight gives full manual control. |
466
+| **System Complexity** | High (proprietary flight controller, AI algorithms) | Moderate (open-source firmware) | DJI uses closed systems with advanced computation. |
467
+| **Tuning Requirement** | Minimal (auto-calibration) | Manual PID tuning needed | DJI tunes itself; Betaflight requires user tuning. |
468
+| **Firmware Platform** | Proprietary DJI Flight Controller | Open-source Betaflight | DJI closed system vs Betaflight open community. |
469
+| **Use Case Summary** | Stable, cinematic, automated | Fast, agile, pilot-skill-based | Different design goals and priorities. |
470
+
471
+---
472
+
473
+### 🧭 Summary
474
+
475
+- **DJI** = Stability, automation, wind resistance, and ease of use.
476
+- **Betaflight** = Agility, manual control, and racing performance.
477
+
478
+If you want DJI-like wind compensation on a custom drone, use **iNav** or **Ardupilot** instead of Betaflight — they support GPS position hold, altitude hold, and auto-leveling with similar logic to DJI.
479
+
480
+
481
+
482
+
412 483
## ref
413 484
414 485
- [[FPV]]
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\ No newline at end of file
app-dat/app-dat.md
... ...
@@ -91,6 +91,12 @@ tech based - [[camera-dat]] - [[audio-dat]]
91 91
92 92
93 93
94
+## Tools
95
+
96
+- [[DSO-dat]]
97
+
98
+
99
+
94 100
95 101
## ref
96 102
power-dat/battery-charger-dat/fast-charge-methods-dat/fast-charge-methods-dat.md
... ...
@@ -7,7 +7,7 @@
7 7
8 8
- [[FCP-dat]] - [[SCP-dat]] - [[VOOC-dat]] - [[PE-dat]] - [[AFC-dat]] - [[MTK-PE-dat]]
9 9
10
-
10
+- [[wireless-charge-dat]]
11 11
12 12
### ⚡ Most Common Fast Charging Methods (as of 2025)
13 13
power-dat/wireless-charge-dat/wireless-charge-dat.md
... ...
@@ -7,4 +7,15 @@
7 7
8 8
## standards
9 9
10
-- [[WPC-1.2-dat]]
... ...
\ No newline at end of file
0
+- [[WPC-1.2-dat]] - [[QI-wireless-charge-dat]]
1
+
2
+- [[fast-charge-methods-dat]]
3
+
4
+
5
+
6
+
7
+
8
+
9
+## ref
10
+
11
+- [[wireless-charge]]
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\ No newline at end of file