Changes in fc39bc8: usb

				BOM-DAT/CONN-DAT/USB-dat/USB-Hub-dat/2023-11-30-15-28-49.png
			
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				BOM-DAT/CONN-DAT/USB-dat/USB-Hub-dat/USB-Hub-dat.md
			
          @@ -1,11 +0,0 @@

          -

          -# USB-Hub-dat

          -

          -## FE1.1 

          -

          -![](2023-11-30-15-28-49.png)

          -

          -

          -## GL850

          -

          -- [[GL850-dat]]

          \ No newline at end of file

				BOM-DAT/CONN-DAT/USB-dat/USB-Switch-dat/2023-11-30-16-01-52.png
			
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				BOM-DAT/CONN-DAT/USB-dat/USB-Switch-dat/USB-Switch-dat.md
			
          @@ -1,9 +0,0 @@

          -

          -# USB-Switch-dat

          -

          -Low-Power, Two-Port, High-Speed, USB2.0 (480Mbps) UART Switch

          -

          -![](2023-11-30-16-01-52.png)

          -

          -- USBD0 - usb_hub

          -- USBB - typc_c

          \ No newline at end of file

				BOM-DAT/CONN-DAT/USB-dat/type-c-dat/2023-11-30-15-27-29.png
			
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				BOM-DAT/CONN-DAT/USB-dat/type-c-dat/type-c-dat.md
			
          @@ -1,6 +0,0 @@

          -

          -# type-c-dat

          -

          -

          -## wiring to CM4 

          -![](2023-11-30-15-27-29.png)

          \ No newline at end of file

				BOM-DAT/usb-dat/cable-usb-dat.md/USB_A-microUSB-dat/USB_A-microUSB-dat.md
			
          @@ -0,0 +1,6 @@

          +

          +# USB_A-microUSB-dat

          +

          +## ref 

          +

          +- [[cable-usb]]

          \ No newline at end of file

				BOM-DAT/usb-dat/conn-USB-dat/USB-Hub-dat/2023-11-30-15-28-49.png
			
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				BOM-DAT/usb-dat/conn-USB-dat/USB-Hub-dat/USB-Hub-dat.md
			
          @@ -0,0 +1,11 @@

          +

          +# USB-Hub-dat

          +

          +## FE1.1 

          +

          +![](2023-11-30-15-28-49.png)

          +

          +

          +## GL850

          +

          +- [[GL850-dat]]

          \ No newline at end of file

				BOM-DAT/usb-dat/conn-USB-dat/USB-Switch-dat/2023-11-30-16-01-52.png
			
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				BOM-DAT/usb-dat/conn-USB-dat/USB-Switch-dat/USB-Switch-dat.md
			
          @@ -0,0 +1,9 @@

          +

          +# USB-Switch-dat

          +

          +Low-Power, Two-Port, High-Speed, USB2.0 (480Mbps) UART Switch

          +

          +![](2023-11-30-16-01-52.png)

          +

          +- USBD0 - usb_hub

          +- USBB - typc_c

          \ No newline at end of file

				BOM-DAT/usb-dat/conn-USB-dat/type-c-dat/2023-11-30-15-27-29.png
			
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				BOM-DAT/usb-dat/conn-USB-dat/type-c-dat/type-c-dat.md
			
          @@ -0,0 +1,6 @@

          +

          +# type-c-dat

          +

          +

          +## wiring to CM4 

          +![](2023-11-30-15-27-29.png)

          \ No newline at end of file

				Tech-dat/power-dat/battery-dat/18650-dat/18650-dat.md
			
          @@ -5,4 +5,19 @@

           ![](2024-03-29-15-59-09.png)

          -- [[18650-battery-holder-dat]]

          \ No newline at end of file

          +- [[18650-battery-holder-dat]]

          +

          +

          +## safety concern 

          +

          +After 30 years of development, the preparation process of 18650 battery has been very mature. In addition to the great improvement in performance, its safety is also perfect. 

          +

          +To prevent the metal casing from exploding, the battery is now fitted with a safety valve at the top. The safety valve is now a standard part of every 18650 Li-ion battery and is the most important barrier. When the pressure inside the cell becomes too high, the top safety valve opens to vent and depressurize, preventing an explosion. 

          +

          +However, when the safety valve is open, chemicals leaking from inside the battery can react with oxygen in the air at high temperatures and still cause a fire. 

          +

          +In addition, most 18650 batteries now also come with their own protection panel with overcharge and overdischarge and short circuit protection, which has high safety performance.

          +

          +- [[battery-protection-dat]]

          +

          +

				Tech-dat/protection-dat/battery-protection-dat/2024-09-13-16-56-57.png
			
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				Tech-dat/protection-dat/battery-protection-dat/battery-protection-dat.md
			
          @@ -0,0 +1,8 @@

          +

          +# battery-protection-dat

          +

          +

          +

          +## DW01 + FS8205 

          +

          +![](2024-09-13-16-56-57.png)

          \ No newline at end of file

...	...	@@ -1,11 +0,0 @@
1		-
2		-# USB-Hub-dat
3		-
4		-## FE1.1
5		-
6		-![](2023-11-30-15-28-49.png)
7		-
8		-
9		-## GL850
10		-
11		-- [[GL850-dat]]
...	...	\ No newline at end of file

...	...	@@ -1,9 +0,0 @@
1		-
2		-# USB-Switch-dat
3		-
4		-Low-Power, Two-Port, High-Speed, USB2.0 (480Mbps) UART Switch
5		-
6		-![](2023-11-30-16-01-52.png)
7		-
8		-- USBD0 - usb_hub
9		-- USBB - typc_c
...	...	\ No newline at end of file

...	...	@@ -1,6 +0,0 @@
1		-
2		-# type-c-dat
3		-
4		-
5		-## wiring to CM4
6		-![](2023-11-30-15-27-29.png)
...	...	\ No newline at end of file

...	...	@@ -0,0 +1,6 @@
	1	+
	2	+# USB_A-microUSB-dat
	3	+
	4	+## ref
	5	+
	6	+- [[cable-usb]]
...	...	\ No newline at end of file

...	...	@@ -0,0 +1,11 @@
	1	+
	2	+# USB-Hub-dat
	3	+
	4	+## FE1.1
	5	+
	6	+![](2023-11-30-15-28-49.png)
	7	+
	8	+
	9	+## GL850
	10	+
	11	+- [[GL850-dat]]
...	...	\ No newline at end of file

...	...	@@ -0,0 +1,9 @@
	1	+
	2	+# USB-Switch-dat
	3	+
	4	+Low-Power, Two-Port, High-Speed, USB2.0 (480Mbps) UART Switch
	5	+
	6	+![](2023-11-30-16-01-52.png)
	7	+
	8	+- USBD0 - usb_hub
	9	+- USBB - typc_c
...	...	\ No newline at end of file

...	...	@@ -0,0 +1,6 @@
	1	+
	2	+# type-c-dat
	3	+
	4	+
	5	+## wiring to CM4
	6	+![](2023-11-30-15-27-29.png)
...	...	\ No newline at end of file

...	...	@@ -5,4 +5,19 @@
5	5
6	6	![](2024-03-29-15-59-09.png)
7	7
8		-- [[18650-battery-holder-dat]]
...	...	\ No newline at end of file
	0	+- [[18650-battery-holder-dat]]
	1	+
	2	+
	3	+## safety concern
	4	+
	5	+After 30 years of development, the preparation process of 18650 battery has been very mature. In addition to the great improvement in performance, its safety is also perfect.
	6	+
	7	+To prevent the metal casing from exploding, the battery is now fitted with a safety valve at the top. The safety valve is now a standard part of every 18650 Li-ion battery and is the most important barrier. When the pressure inside the cell becomes too high, the top safety valve opens to vent and depressurize, preventing an explosion.
	8	+
	9	+However, when the safety valve is open, chemicals leaking from inside the battery can react with oxygen in the air at high temperatures and still cause a fire.
	10	+
	11	+In addition, most 18650 batteries now also come with their own protection panel with overcharge and overdischarge and short circuit protection, which has high safety performance.
	12	+
	13	+- [[battery-protection-dat]]
	14	+
	15	+

...	...	@@ -0,0 +1,8 @@
	1	+
	2	+# battery-protection-dat
	3	+
	4	+
	5	+
	6	+## DW01 + FS8205
	7	+
	8	+![](2024-09-13-16-56-57.png)
...	...	\ No newline at end of file