PCB-dat/EDA-dat/EDA-dat.md
... ...
@@ -12,6 +12,9 @@
12 12
- [[protel-dat]]
13 13
14 14
15
+
16
+
17
+
15 18
## EDA tools
16 19
17 20
- [[EDA-simulation-dat]] - [[EDA-dat]] - [[kicad-dat]] - [[eaglecad-dat]] - [[fritzing.org-dat]]
PCB-dat/EDA-dat/EDA-footprint-dat/2026-03-13-15-53-23.png
... ...
Binary files /dev/null and b/PCB-dat/EDA-dat/EDA-footprint-dat/2026-03-13-15-53-23.png differ
PCB-dat/EDA-dat/EDA-footprint-dat/EDA-footprint-dat.md
... ...
@@ -0,0 +1,14 @@
1
+
2
+
3
+# EDA-footprint-dat
4
+
5
+
6
+drill and diameter
7
+
8
+![](2026-03-13-15-53-23.png)
9
+
10
+
11
+
12
+## ref
13
+
14
+- [[eaglecad-dat]] - [[EDA-dat]] - [[EDA-footprint-dat]]
... ...
\ No newline at end of file
PCB-dat/EDA-dat/eaglecad-dat/eaglecad-dat.md
... ...
@@ -9,21 +9,9 @@
9 9
- https://github.com/Edragon/Eagle-CAD-dat
10 10
- ~~https://github.com/Edragon/CAD-Eagle-part~~
11 11
12
+- [[PCB-footprint-dat]] - [[EDA-dat]]
12 13
13
-## Tips
14
-
15
-### oval, or oblong shapes
16
-
17
-Unfortunately there is still no option for creating a plated slot in the library editor with the ease you can an SMD or PAD. However, you can do as @millingm suggested or the variation I prefer which is a PAD on each end of the slot and then draw each of the inner/outer layer pad areas with a polygon on each of the 16 routing layers. The also draw the slot as a line on the Milling layer. You end up with something like this in your library:
18
-
19
-![](2024-04-02-14-24-27.png)
20
-
21
-And when it is in the board you end up with:
22
-
23
-![](2024-04-02-14-24-54.png)
24
-
25
-https://forums.autodesk.com/t5/eagle-forum/slotted-pads/td-p/7487203
26
-
14
+- [[eaglecad-dat]] - [[EDA-dat]] - [[EDA-footprint-dat]]
27 15
28 16
29 17
... ...
@@ -96,6 +84,27 @@ scale 1 will be too big for this PCB size, size scale 0.1 looks good
96 84
97 85
finally copy paste to layer 21 tplace
98 86
87
+
88
+
89
+## Tips
90
+
91
+### oval, or oblong shapes
92
+
93
+Unfortunately there is still no option for creating a plated slot in the library editor with the ease you can an SMD or PAD. However, you can do as @millingm suggested or the variation I prefer which is a PAD on each end of the slot and then draw each of the inner/outer layer pad areas with a polygon on each of the 16 routing layers. The also draw the slot as a line on the Milling layer. You end up with something like this in your library:
94
+
95
+![](2024-04-02-14-24-27.png)
96
+
97
+And when it is in the board you end up with:
98
+
99
+![](2024-04-02-14-24-54.png)
100
+
101
+https://forums.autodesk.com/t5/eagle-forum/slotted-pads/td-p/7487203
102
+
103
+
104
+
105
+
106
+
107
+
99 108
## ref
100 109
101 110
- [[eagle-cad]]
battery-dat/battery-alkaline-dat/AA-battery-dat/AA-battery-dat.md
... ...
@@ -1,8 +0,0 @@
1
-
2
-# AA-battery-dat
3
-
4
-
5
-
6
-## ref
7
-
8
-- [[battery-leakage-dat]]
... ...
\ No newline at end of file
battery-dat/battery-alkaline-dat/AAA-battery-dat/AAA-battery-dat.md
... ...
@@ -1,3 +0,0 @@
1
-
2
-# AAA-battery-dat
3
-
battery-dat/battery-alkaline-dat/battery-AA-dat/battery-AA-dat.md
... ...
@@ -0,0 +1,19 @@
1
+
2
+# AA-battery-dat
3
+
4
+
5
+
6
+## discharge
7
+
8
+2x AA battery in series == 3V
9
+
10
+
11
+`Peak Current`: Approximately 2A to 3A.
12
+
13
+`Behavior`: At these high currents, the voltage will "`sag`" significantly (dropping well below $1.5\text{V}$ per cell), and the battery will heat up quickly. They are not designed for sustained high-current loads.
14
+
15
+
16
+
17
+## ref
18
+
19
+- [[battery-leakage-dat]]
... ...
\ No newline at end of file
battery-dat/battery-alkaline-dat/battery-AAA-dat/battery-AAA-dat.md
... ...
@@ -0,0 +1,3 @@
1
+
2
+# AAA-battery-dat
3
+
battery-dat/battery-holder-dat/18650-battery-holder-dat/18650-battery-holder-dat.md
... ...
@@ -2,10 +2,23 @@
2 2
# 18650-battery-holder-dat
3 3
4 4
5
+
6
+## 18650 battery holder
7
+
8
+![](2025-08-30-16-22-09.png)
9
+
10
+
11
+
12
+## metal clip battery holder
13
+
5 14
![](2024-03-29-16-01-14.png)
6 15
7 16
![](2024-03-29-16-01-28.png)
8 17
18
+
19
+
20
+
21
+
9 22
## Flexible Connection battery holder
10 23
11 24
![](2025-05-12-14-49-25.png)
... ...
@@ -22,6 +35,9 @@
22 35
23 36
- [[2S-lithium-battery-charger-dat]]
24 37
38
+
39
+
40
+
25 41
### 4S 18650 battery holder
26 42
27 43
== 4.2*4 = 16.8V
battery-dat/battery-holder-dat/18650-battery-holder-dat/2025-08-30-16-22-09.png
... ...
Binary files /dev/null and b/battery-dat/battery-holder-dat/18650-battery-holder-dat/2025-08-30-16-22-09.png differ
battery-dat/battery-holder-dat/2025-08-30-16-22-09.png
... ...
Binary files a/battery-dat/battery-holder-dat/2025-08-30-16-22-09.png and /dev/null differ
battery-dat/battery-holder-dat/AA-battery-holder-dat/AA-battery-holder-dat.md
... ...
@@ -1,6 +1,10 @@
1 1
2 2
# AA-battery-holder-dat
3 3
4
+
5
+- [[battery-AA-dat]] - [[battery-size-dat]]
6
+
7
+
4 8
- [[battery-holder-dat]] - [[18650-battery-holder-dat]] - [[AA-battery-holder-dat]]
5 9
6 10
- [[battery-pack-dat]] - [[battery-pack-kit-dat]]
battery-dat/battery-holder-dat/battery-holder-dat.md
... ...
@@ -13,9 +13,6 @@
13 13
- [[PPB1080-dat]]
14 14
15 15
16
-## 18650 battery holder
17
-
18
-![](2025-08-30-16-22-09.png)
19 16
20 17
21 18
battery-dat/battery-pack-dat/battery-pack-dat.md
... ...
@@ -28,6 +28,23 @@
28 28
- soldering by [[spot-welding-dat]]
29 29
30 30
31
+
32
+## how to choose correct battery pack
33
+
34
+- [[battery-packs-dat]] - [[battery-1s-dat]] - [[battery-2s-dat]] - [[battery-3s-dat]] - [[battery-4s-dat]] - [[battery-5s-dat]] - [[battery-6s-dat]] - [[battery-7s-dat]] - [[battery-10s-dat]] - [[battery-13s-dat]] - [[battery-14s-dat]]
35
+
36
+- [[battery-size-dat]] - [[battery-holder-dat]]
37
+
38
+If your device needs a peak of 40 Watts:
39
+
40
+- At 3.7V (1S): The battery must push \approx `10.8A`.
41
+- At 7.4V (2S): The batteries only need to push \approx `5.4A`.
42
+
43
+so for high current, always GOOD to use higher voltage pack
44
+
45
+
46
+
47
+
31 48
## battery pack examples
32 49
33 50
- 48V 15Ah == 703 RMB - - [[32125-dat]] [[li-battery-dat]]