BOM-DAT/diode-dat/diode-dat.md
... ...
@@ -126,6 +126,12 @@ alternatives: SS14 / SS34 / SS54
126 126
127 127
128 128
129
+## other more diodes
130
+
131
+- High Power Switching and Attenuation Silicon PIN Diodes - The **MMP7060** - 69 Series of PIN diodes are fast switching, low series resistance, low capacitance PIN diode chips.
132
+
133
+
134
+
129 135
## ref
130 136
131 137
- [[BOM-dat]] - [[mosfet-dat]]
Chip-dat/Analog-device-dat/Analog-device-dat.md
... ...
@@ -9,6 +9,7 @@
9 9
10 10
- [[ds3231-dat]] - [[max30102-dat]] - [[max31865-dat]] - [[max98357-dat]] - [[LTC4054-dat]] - [[MAX6675-dat]] - [[MAX31855-dat]]
11 11
12
+- [[mixer-dat]] - [[timing-dat]]
12 13
13 14
- ad7190-dat
14 15
Tech-dat/cable-dat/ribbon-cable-dat/ribbon-cable-dat.md
... ...
@@ -25,4 +25,6 @@ common width
25 25
26 26
## ref
27 27
28
-- [[cable-dat]]
... ...
\ No newline at end of file
0
+- [[cable-dat]]
1
+
2
+- [[ribbon-cable]] - [[cable]]
... ...
\ No newline at end of file
Tech-dat/mixer-dat/mixer-dat.md
... ...
@@ -0,0 +1,8 @@
1
+
2
+# mixer-dat.md
3
+
4
+GaAs, MMIC, Fundamental Mixer, 3 GHz to 10 GHz
5
+
6
+The HMC787A is a general-purpose, double balanced mixer in a 12-terminal, RoHS compliant, ceramic leadless chip carrier (LCC) package that can be used as an upconverter or downconverter from 3 GHz to 10 GHz. This mixer is fabricated in a gallium arsenide (GaAs), metal semiconductor field effect transistor (MESFET) process and requires no external components or matching circuitry.
7
+
8
+- [[analog-device-dat]]
... ...
\ No newline at end of file
Tech-dat/timing-dat/timing-dat.md
... ...
@@ -0,0 +1,9 @@
1
+
2
+# timing-dat
3
+
4
+## DS1100
5
+
6
+
7
+The **DS1100** series delay lines have five equally spaced taps providing delays from 4ns to 500ns.
8
+
9
+5-Tap Economy Timing Element (Delay Line)
... ...
\ No newline at end of file
app-dat/PNP-machine-dat/nozzle-dat/nozzle-dat.md
... ...
@@ -5,9 +5,9 @@
5 5
6 6
| Nozzle | Application |
7 7
| ------ | ------------------------------------------------------------------ |
8
-| CN30 | 0201, 0402 and components of similar size |
9
-| CN40 | 0402, 0603 and components of similar size |
10
-| CN65 | 0603, 0805, SOT23 and components of similar size |
8
+| CN030 | 0201, 0402 and components of similar size |
9
+| CN040 | 0402, 0603 and components of similar size |
10
+| CN065 | 0603, 0805, SOT23 and components of similar size |
11 11
| CN100 | 0603, 0805, 1206, SOT23, SOP8 and components of similar size |
12 12
| CN140 | SOP8, SMA cap and components of similar size |
13 13
| CN220 | SOP8, SOP16, SMA CAP, QFP32 and components of similar size |
... ...
@@ -22,3 +22,4 @@
22 22
23 23
- [[PNP-machine-dat]]
24 24
25
+- [[nozzle]]
app-dat/RC-dat/FPV-dat/FPV-purpose-dat/FPV-purpose-dat.md
... ...
@@ -0,0 +1,60 @@
1
+
2
+# FPV-purpose-dat
3
+
4
+## Better Cinewhoop Options Than Mobula8
5
+
6
+If your goal is **cinematic FPV footage**, there are stronger options than the Mobula8.
7
+Key things to look for in a cinewhoop:
8
+- Larger frame with ducts/guards → protects props, cleaner footage.
9
+- Stronger motors/ESCs → can carry payload (Insta360 GO, Naked GoPro, etc.).
10
+- HD video system (DJI O3, Walksnail, HDZero, or high-quality analog).
11
+- Stable flight time even with payload.
12
+
13
+---
14
+
15
+### Comparison: Mobula8 vs Alternatives
16
+
17
+| Model / Frame | Size | Battery | Payload Ability | Notes |
18
+|--------------------------|-------------|---------------|-----------------|-------|
19
+| [[Mobula8-dat]] | 85 mm, 2S | 450–650 mAh | Insta360 GO / Peanut | Best of Mobula line, but limited thrust for heavy cams. |
20
+| **Flylens 85** | 85 mm, 2" | 2S–3S | Light HD cam | Cinewhoop-focused frame with ducts. |
21
+| **Petrel85 Whoop** | 85 mm, 2" | 2S–3S | Light HD cam | Strong, good for micro cine builds. |
22
+| **SpeedyBee Flex25** | 2.5 inch | 3S–4S | Naked GoPro | Compact but powerful, indoor + outdoor cinewhoop. |
23
+| **TransTEC Beetle 2.5"**| 2.5 inch | 3S–4S | Naked GoPro | Supports DJI digital system. |
24
+| **GEPRC CL35 V2** | 3.5 inch | 4S–6S | Full GoPro | Heavier, great outdoors, stable footage. |
25
+| **iFlight Green Hornet**| 3 inch | 4S–6S | Naked/Full GoPro| Classic cinewhoop, strong ducts, proven design. |
26
+
27
+
28
+
29
+---
30
+
31
+### Product Suggestions
32
+
33
+#### 1. BETAFPV Meteor65 Pro (O4 / 1S)
34
+- Ultra-light 1S whoop with HD system.
35
+- Great for **tiny indoor cinematic flying**.
36
+- Cannot carry external action cam.
37
+
38
+#### 2. HGLRC Talon 2-inch 4S Cinewhoop
39
+- 2-inch cinewhoop, very stable.
40
+- Handles **Insta360 GO2 / Naked GoPro**.
41
+- Best balance of power and size.
42
+
43
+#### 3. Lumenier QAV-PRO Nano Whoop (2-inch)
44
+- Premium cinewhoop frame kit.
45
+- Great ducts, solid carbon design.
46
+- Designed for cinematic micro builds.
47
+
48
+#### 4. GEPRC CL35 V2 (3.5-inch)
49
+- Large cinewhoop, supports **full GoPro Hero**.
50
+- Best for outdoor cinematic work.
51
+- More thrust, less indoor-friendly.
52
+
53
+---
54
+
55
+### ✅ Recommendation
56
+- **Small indoor cinewhoop** → BETAFPV Meteor65 Pro (ultra-light)
57
+- **Balanced micro cinewhoop** → HGLRC Talon 2" or SpeedyBee Flex25
58
+- **Heavy-duty outdoor cinewhoop** → GEPRC CL35 V2 or iFlight Green Hornet
59
+
60
+👉 If you want something better than Mobula8 but still compact: **SpeedyBee Flex25** or **HGLRC Talon 2"** are the best choices.
app-dat/RC-dat/RC-configurator-dat/betaflight-dat/betaflight-dat.md
... ...
@@ -12,6 +12,20 @@
12 12
- [[indoor-fly-dat]]
13 13
14 14
15
+## betaflight supports
16
+
17
+| model | supported | from |
18
+| ----------------------- | --------- | ------------------ |
19
+| [[Mobula8-dat]] / 7 / 6 | yes | [[happymodel-dat]] |
20
+| [[aquila16-dat]] | no | [[betaFPV-dat]] |
21
+| [[Meteor65-Pro-dat]] | yes | [[betaFPV-dat]] |
22
+
23
+
24
+
25
+
26
+
27
+
28
+
15 29
## CLI
16 30
17 31
# version
app-dat/RC-dat/RC-supplier-dat/drone-maker-dat/betaFPV-dat/Meteor65-Pro-dat/Meteor65-Pro-dat.md
... ...
@@ -0,0 +1,19 @@
1
+
2
+# Meteor65-Pro-dat
3
+
4
+Yes — the BetaFPV Meteor65 Pro supports Betaflight.
5
+
6
+It comes with BetaFPV’s F4 1S AIO flight controller, which is fully compatible with Betaflight.
7
+
8
+Out of the box, it is usually pre-flashed with Betaflight firmware.
9
+
10
+You can connect it to Betaflight Configurator via USB-C to adjust PIDs, rates, filters, receiver setup, OSD, etc.
11
+
12
+Many people use Betaflight for Meteor65 Pro, but it also supports Bluejay ESC firmware (for 48/96 kHz PWM and bidirectional DShot).
13
+
14
+✅ So yes — you can set it up, tune, and fly it in Betaflight without issues.
15
+
16
+
17
+## ref
18
+
19
+- [[betaFPV-dat]]
... ...
\ No newline at end of file
app-dat/RC-dat/RC-supplier-dat/drone-maker-dat/betaFPV-dat/betaFPV-dat.md
... ...
@@ -1,4 +1,11 @@
1 1
2 2
# betaFPV-dat
3 3
4
-- [[lightradio-dat]]
... ...
\ No newline at end of file
0
+- [[lightradio-dat]]
1
+
2
+- [[aquila16-dat]] - [[meteor65-pro-dat]]
3
+
4
+## ref
5
+
6
+- [[betaFPV]]
7
+
fab-PCBA-dat/SMT-Reflow-Soldering-dat/SMT-Reflow-Soldering-dat.md
... ...
@@ -0,0 +1,38 @@
1
+
2
+# SMT-Reflow-Soldering-dat
3
+
4
+- [[pnp-machine-dat]]
5
+
6
+## Causes of Solder Splashes / Solder Balls After Reflow Soldering
7
+
8
+### 1. Solder Paste Issues
9
+- **Poor quality solder paste**: uneven particle size or wrong metal content.
10
+- **Expired or improperly stored paste**: absorbs moisture, leading to solder spatter.
11
+- **Excessive solder paste thickness**: too much solder causes overflow and splashes.
12
+
13
+### 2. PCB and Component Cleanliness
14
+- **Contaminated PCB surface**: dust, oil, or oxidation reduces flux activity.
15
+- **Oxidized component leads or pads**: poor wetting leads to solder residues.
16
+
17
+### 3. Reflow Process Parameters
18
+- **Ramp-up too fast**: flux or moisture evaporates explosively, causing solder balls.
19
+- **Insufficient preheat zone**: solvents not fully evaporated, bursting in reflow zone.
20
+- **Peak temperature too high / soak too long**: excessive solder fluidity, splashes out.
21
+
22
+### 4. Printing and Placement Process
23
+- **Stencil design issues**: oversized or wrong-shaped apertures release too much solder.
24
+- **Uneven printing**: paste smearing, stringing, or overflow.
25
+- **Component misplacement**: misaligned parts squeeze solder during reflow.
26
+
27
+---
28
+
29
+### ✅ Solutions
30
+1. Use high-quality solder paste, store under low temperature and dry conditions.
31
+2. Optimize stencil aperture design and control paste thickness.
32
+3. Adjust reflow oven profile:
33
+ - Sufficient preheat for solvent/moisture removal.
34
+ - Avoid temperature overshoot in peak zone.
35
+4. Keep PCB and components clean, reduce oxidation.
36
+5. Check placement machine accuracy to avoid component shift.
37
+
38
+