Changes in 1810595: 52840

				CONN-DAT/CONN-power-dat/CONN-DC-barrel-jack-dat/2026-02-06-16-47-17.png
			
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				CONN-DAT/CONN-power-dat/CONN-DC-barrel-jack-dat/CONN-DC-barrel-jack-dat.md
			
          @@ -100,6 +100,10 @@ Positive negative and extra earth pin in center (white)

           ![](2025-11-28-15-29-58.png)

          +## 90-degree DC connector 

          +

          +![](2026-02-06-16-47-17.png)

          +

           ## ref 

           - [[power-jack]]

				Chip-dat/Nordic-dat/NRF5x-dat/NRF52840-dat/NRF52840-dat.md
			
          @@ -47,6 +47,13 @@

           - 4x 32-bit timers, RTC, watchdog, and more

          +The nRF52840 is quite generous with its I/O compared to many other Bluetooth SoCs. It features a total of 48 GPIO pins.

          +

          +These pins are organized into two separate "ports":

          +

          +- Port 0 (P0): Consists of 32 pins (P0.00 to P0.31).

          +- Port 1 (P1): Consists of 16 pins (P1.00 to P1.15).

          +

           ## SDK 

          @@ -128,11 +135,11 @@ Adafruit Feather nRF52840:

           - SDA: P0.25 (Physical Pin 25)

           - SCL: P0.26 (Physical Pin 26)

          -## solutions 

          +## solutions and apps

           - [[NRF52840+SX1262-dat]] - [[lora-dat]] - [[bluetooth-dat]]

          -

          +- [[head-track-dat]] - [[head-track]]

				Chip-dat/rockchip-dat/rockchip-dat.md
			
          @@ -11,7 +11,16 @@

           RK3328

          +## RK3588

          +

          +It uses the Rockchip RK3588 as the main chip, adopts an 8nm advanced process technology, and has a maximum clock speed of 2.4GHz. 

          +

          +It integrates an eight-core processor with four 64-bit Cortex-A76 cores and four 64-bit Cortex-A55 cores, as well as an ARM Mali-G610MC4 GPU. 

          +

          +It supports 8K video encoding and decoding and 8K display output, has super image processing capabilities, supports multiple camera inputs, and supports multi-screen display.

          +

          +

           ## ref 

          -- [[rocketchip]]

          \ No newline at end of file

          +- [[rockchip]]

          \ No newline at end of file

				Tech-dat/Sensor-dat/sensor-motion-dat/6-axis-dat/6-axis-dat.md
			
          @@ -38,6 +38,13 @@ Accelerometer + Gyroscope == Inertial Measurement Unit

          +The BMI160 integrates:

          +

          +- 16 bit digital, triaxial accelerometer  

          +- 16 bit digital, triaxial gyroscope

          +

          +

          +

           ## APP 

           - [[sensor-gesture-dat]]

				Tech-dat/Sensor-dat/sensor-motion-dat/9-axis-IMU-dat/9-axis-IMU-dat.md
			
          @@ -7,24 +7,28 @@

           ## info 

          +

           - [[6-axis-dat]] + - [[3-Axis-Magnetic-dat]]

          -MPU6500 6 axis, Gyrometer & Accelerometer + QMC588s 3 axis, Magnetometer - [[3-Axis-Magnetic-dat]]

          +combination options 

          +

          +- [[6-axis-dat]]

          -BMI270 6 axis, Gyrometer & Accelerometer + BMM150 3 axis, Magnetometer

          +- MPU6500 6 axis, Gyrometer & Accelerometer + QMC5883L 3 axis, Magnetometer - [[3-Axis-Magnetic-dat]]

          +- BMI270 6 axis, Gyrometer & Accelerometer + BMM150 3 axis, Magnetometer

          +single chip options

          +- LSM9DS1 - LSM9DS1 9 Axis, Gyrometer, Accelerometer and Magnetometer

          -LSM9DS1 9 Axis, Gyrometer, Accelerometer and Magnetometer

          +- [[BNO055-dat]] - [[ASHR-dat]]

          +

          +- [[MPU9255-dat]] - [[invensense-dat]] - [[MPU9250-dat]]

          -- BNO055

          -- [[MPU9255-dat]] - [[invensense-dat]]

          -- [[MPU9250-dat]]

          -- LSM9DS1

           - [[3-axis-gyroscope-dat]] - [[3-Axis-Magnetic-dat]] - [[3-axis-Accelerometer-dat]]

          @@ -59,7 +63,9 @@ While an Inertial Measurement Unit (IMU) only outputs raw data (acceleration/ang

           ## app 

          -- [[head-track]]

          +- [[head-track-dat]]

          +

          +- [[robot-dat]]

           ## ref

				Tech-dat/interactive-dat/LED-dat/led-driver-dat/led-driver-dat.md
			
          @@ -85,6 +85,10 @@ https://cdn.sparkfun.com/datasheets/Components/General/FQP30N06L.pdf

           - [[CN5711-dat]] - [[consonance-dat]]

          +

          +

          +

          +

           ### option 3 

           背光驱动

				Tech-dat/tech-dat.md
			
          @@ -264,7 +264,7 @@

           ## chips 

          -- [[chip-dat]] - [[TI-dat]] - [[analog-device-dat]] - [[silicon-labs-dat]] - [[onsemi-dat]] - [[maxlinear-dat]] - [[microchip-dat]] - [[nordic-dat]] - [[bosch-dat]]

          +- [[chip-dat]] - [[TI-dat]] - [[analog-device-dat]] - [[silicon-labs-dat]] - [[onsemi-dat]] - [[maxlinear-dat]] - [[microchip-dat]] - [[nordic-dat]] - [[bosch-dat]] - [[rockchip-dat]]

           - [[chip-cn-dat]]

				app-dat/robot-dat/robot-dat.md
			
          @@ -17,6 +17,11 @@

           - [[robot-dat]] - [[motor-driver-dat]]

          +ROS 

          +

          +In the context of the Robot Operating System (ROS), "Robot Control" usually refers to ros_control. This is a powerful software framework that acts as the "nervous system" of a robot, connecting the high-level brain (which plans movements) to the low-level muscles (the motors and actuators).

          +

          +

           ## APP 

           - [[rc-car-dat]] - [[robot-arm-dat]]

				mechanics-dat/mechanical-structure-dat/Shaft-dat/shaft-screw-system-dat/2026-02-06-16-44-52.png
			
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				mechanics-dat/mechanical-structure-dat/Shaft-dat/shaft-screw-system-dat/shaft-screw-system-dat.md
			
          @@ -0,0 +1,4 @@

          +

          +# shaft-screw-system-dat

          +

          +![](2026-02-06-16-44-52.png)

          \ No newline at end of file

				mechanics-dat/mechanical-structure-dat/Shaft-dat/tube-dat/tube-steel-square-dat/2026-02-06-16-48-36.png
			
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				mechanics-dat/mechanical-structure-dat/Shaft-dat/tube-dat/tube-steel-square-dat/tube-steel-square-dat.md
			
          @@ -1,4 +1,9 @@

           # tube-steel-square-dat

          -- [[construction-dat]] - [[rod-wood-dat]] - [[tube-steel-square-dat]]

          \ No newline at end of file

          +- [[construction-dat]] - [[rod-wood-dat]] - [[tube-steel-square-dat]]

          +

          +

          +metal tube connector 

          +

          +![](2026-02-06-16-48-36.png)

          \ No newline at end of file

				mechanics-dat/mechanism-dat/Gantry-System-dat/Gantry-System-dat.md
			
          @@ -0,0 +1,5 @@

          +

          +# Gantry-System-dat

          +

          +- 龙门架构

          +

				mechanics-dat/mechanism-dat/mechanism-dat.md
			
          @@ -17,6 +17,14 @@

           - [[gear-worm-dat]]

          +

          +## structure

          +

          +- [[gantry-system-dat]] - [[x-y-dat]]

          +

          +

          +

          +

           ## differential 

           A **differential** is an essential device in a vehicle’s drivetrain, usually located in the drive axle.

				mechanics-dat/mechanism-dat/x-y-dat/2026-02-06-16-56-25.png
			
          Binary files /dev/null and b/mechanics-dat/mechanism-dat/x-y-dat/2026-02-06-16-56-25.png differ

				mechanics-dat/mechanism-dat/x-y-dat/x-y-dat.md
			
          @@ -1,6 +1,15 @@

           # x-y-dat

          +## classic x-y structure

          +

          +

          +![](2026-02-06-16-56-25.png)

          +

          +

          +

          +## Cantilever

          +

           ![](2026-01-25-02-17-45.png)

           ![](2026-01-25-02-20-23.png)

          @@ -18,6 +27,10 @@

           ![](2026-01-25-02-30-45.png)

          +

          +

          +

          +

           ## ref 

           - 十字滑台 / 龙门 / 直线滑台 / 丝杆

          \ No newline at end of file

...	...	@@ -100,6 +100,10 @@ Positive negative and extra earth pin in center (white)
100	100	![](2025-11-28-15-29-58.png)
101	101
102	102
	103	+## 90-degree DC connector
	104	+
	105	+![](2026-02-06-16-47-17.png)
	106	+
103	107	## ref
104	108
105	109	- [[power-jack]]

...	...	@@ -264,7 +264,7 @@
264	264
265	265	## chips
266	266
267		-- [[chip-dat]] - [[TI-dat]] - [[analog-device-dat]] - [[silicon-labs-dat]] - [[onsemi-dat]] - [[maxlinear-dat]] - [[microchip-dat]] - [[nordic-dat]] - [[bosch-dat]]
	267	+- [[chip-dat]] - [[TI-dat]] - [[analog-device-dat]] - [[silicon-labs-dat]] - [[onsemi-dat]] - [[maxlinear-dat]] - [[microchip-dat]] - [[nordic-dat]] - [[bosch-dat]] - [[rockchip-dat]]
268	268
269	269	- [[chip-cn-dat]]
270	270

...	...	@@ -47,6 +47,13 @@
47	47	- 4x 32-bit timers, RTC, watchdog, and more
48	48
49	49
	50	+The nRF52840 is quite generous with its I/O compared to many other Bluetooth SoCs. It features a total of 48 GPIO pins.
	51	+
	52	+These pins are organized into two separate "ports":
	53	+
	54	+- Port 0 (P0): Consists of 32 pins (P0.00 to P0.31).
	55	+- Port 1 (P1): Consists of 16 pins (P1.00 to P1.15).
	56	+
50	57
51	58	## SDK
52	59
...	...	@@ -128,11 +135,11 @@ Adafruit Feather nRF52840:
128	135	- SDA: P0.25 (Physical Pin 25)
129	136	- SCL: P0.26 (Physical Pin 26)
130	137
131		-## solutions
	138	+## solutions and apps
132	139
133	140	- [[NRF52840+SX1262-dat]] - [[lora-dat]] - [[bluetooth-dat]]
134	141
135		-
	142	+- [[head-track-dat]] - [[head-track]]
136	143
137	144
138	145

...	...	@@ -11,7 +11,16 @@
11	11
12	12	RK3328
13	13
	14	+## RK3588
	15	+
	16	+It uses the Rockchip RK3588 as the main chip, adopts an 8nm advanced process technology, and has a maximum clock speed of 2.4GHz.
	17	+
	18	+It integrates an eight-core processor with four 64-bit Cortex-A76 cores and four 64-bit Cortex-A55 cores, as well as an ARM Mali-G610MC4 GPU.
	19	+
	20	+It supports 8K video encoding and decoding and 8K display output, has super image processing capabilities, supports multiple camera inputs, and supports multi-screen display.
	21	+
	22	+
14	23
15	24	## ref
16	25
17		-- [[rocketchip]]
...	...	\ No newline at end of file
	0	+- [[rockchip]]
...	...	\ No newline at end of file

...	...	@@ -38,6 +38,13 @@ Accelerometer + Gyroscope == Inertial Measurement Unit
38	38
39	39
40	40
	41	+The BMI160 integrates:
	42	+
	43	+- 16 bit digital, triaxial accelerometer
	44	+- 16 bit digital, triaxial gyroscope
	45	+
	46	+
	47	+
41	48	## APP
42	49
43	50	- [[sensor-gesture-dat]]

...	...	@@ -7,24 +7,28 @@
7	7
8	8
9	9	## info
	10	+
10	11	- [[6-axis-dat]] + - [[3-Axis-Magnetic-dat]]
11	12
12	13
13		-MPU6500 6 axis, Gyrometer & Accelerometer + QMC588s 3 axis, Magnetometer - [[3-Axis-Magnetic-dat]]
	14	+combination options
	15	+
	16	+- [[6-axis-dat]]
14	17
15		-BMI270 6 axis, Gyrometer & Accelerometer + BMM150 3 axis, Magnetometer
	18	+- MPU6500 6 axis, Gyrometer & Accelerometer + QMC5883L 3 axis, Magnetometer - [[3-Axis-Magnetic-dat]]
	19	+- BMI270 6 axis, Gyrometer & Accelerometer + BMM150 3 axis, Magnetometer
16	20
	21	+single chip options
17	22
	23	+- LSM9DS1 - LSM9DS1 9 Axis, Gyrometer, Accelerometer and Magnetometer
18	24
19		-LSM9DS1 9 Axis, Gyrometer, Accelerometer and Magnetometer
	25	+- [[BNO055-dat]] - [[ASHR-dat]]
	26	+
	27	+- [[MPU9255-dat]] - [[invensense-dat]] - [[MPU9250-dat]]
20	28
21		-- BNO055
22	29
23		-- [[MPU9255-dat]] - [[invensense-dat]]
24	30
25		-- [[MPU9250-dat]]
26	31
27		-- LSM9DS1
28	32
29	33
30	34	- [[3-axis-gyroscope-dat]] - [[3-Axis-Magnetic-dat]] - [[3-axis-Accelerometer-dat]]
...	...	@@ -59,7 +63,9 @@ While an Inertial Measurement Unit (IMU) only outputs raw data (acceleration/ang
59	63
60	64	## app
61	65
62		-- [[head-track]]
	66	+- [[head-track-dat]]
	67	+
	68	+- [[robot-dat]]
63	69
64	70
65	71	## ref

...	...	@@ -85,6 +85,10 @@ https://cdn.sparkfun.com/datasheets/Components/General/FQP30N06L.pdf
85	85
86	86	- [[CN5711-dat]] - [[consonance-dat]]
87	87
	88	+
	89	+
	90	+
	91	+
88	92	### option 3
89	93
90	94	背光驱动

...	...	@@ -17,6 +17,11 @@
17	17	- [[robot-dat]] - [[motor-driver-dat]]
18	18
19	19
	20	+ROS
	21	+
	22	+In the context of the Robot Operating System (ROS), "Robot Control" usually refers to ros_control. This is a powerful software framework that acts as the "nervous system" of a robot, connecting the high-level brain (which plans movements) to the low-level muscles (the motors and actuators).
	23	+
	24	+
20	25	## APP
21	26
22	27	- [[rc-car-dat]] - [[robot-arm-dat]]

...	...	@@ -0,0 +1,4 @@
	1	+
	2	+# shaft-screw-system-dat
	3	+
	4	+![](2026-02-06-16-44-52.png)
...	...	\ No newline at end of file

...	...	@@ -1,4 +1,9 @@
1	1
2	2	# tube-steel-square-dat
3	3
4		-- [[construction-dat]] - [[rod-wood-dat]] - [[tube-steel-square-dat]]
...	...	\ No newline at end of file
	0	+- [[construction-dat]] - [[rod-wood-dat]] - [[tube-steel-square-dat]]
	1	+
	2	+
	3	+metal tube connector
	4	+
	5	+![](2026-02-06-16-48-36.png)
...	...	\ No newline at end of file

...	...	@@ -0,0 +1,5 @@
	1	+
	2	+# Gantry-System-dat
	3	+
	4	+- 龙门架构
	5	+

...	...	@@ -17,6 +17,14 @@
17	17
18	18	- [[gear-worm-dat]]
19	19
	20	+
	21	+## structure
	22	+
	23	+- [[gantry-system-dat]] - [[x-y-dat]]
	24	+
	25	+
	26	+
	27	+
20	28	## differential
21	29
22	30	A differential is an essential device in a vehicle’s drivetrain, usually located in the drive axle.

...	...	@@ -1,6 +1,15 @@
1	1
2	2	# x-y-dat
3	3
	4	+## classic x-y structure
	5	+
	6	+
	7	+![](2026-02-06-16-56-25.png)
	8	+
	9	+
	10	+
	11	+## Cantilever
	12	+
4	13	![](2026-01-25-02-17-45.png)
5	14
6	15	![](2026-01-25-02-20-23.png)
...	...	@@ -18,6 +27,10 @@
18	27
19	28	![](2026-01-25-02-30-45.png)
20	29
	30	+
	31	+
	32	+
	33	+
21	34	## ref
22	35
23	36	- 十字滑台 / 龙门 / 直线滑台 / 丝杆
...	...	\ No newline at end of file