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update for unify translate
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samlcy1997 committed Dec 6, 2021
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2 changes: 1 addition & 1 deletion docs/Sensors_and_actuators/DHT11.md
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# DHT11
# Temperature and Humidity sensor (DHT11)

![pic_70](images/DHT11_0.jpg)
## Introduction
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4 changes: 2 additions & 2 deletions docs/Sensors_and_actuators/Motion_sensor.md
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# Motion Sensor
# PIR Motion Sensor

![pic_70](images/Motion_Sensor_0.jpg)
## Introduction
The Motion Sensor use a pyroelectric infrared sensor to detect any moving object at front.When the infrared signal have rapid change, the sensor will return high to user, otherwise, return low.
The PIR Motion Sensor use a pyroelectric infrared sensor to detect any moving object at front.When the infrared signal have rapid change, the sensor will return high to user, otherwise, return low.
<P>

## The principle
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3 changes: 1 addition & 2 deletions docs/Sensors_and_actuators/Ultrasonic_Distance_sensor.md
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# Ultrasonic Distance Sensor US-025A

# Ultrasonic Distance Sensor
![pic_70](images/Ultrasonic_Distance_Sensor_0.jpg)
## Introduction
The Distance sensor using two ultrasonic sensors to detect the distance between current position and object. In most situation, the availability of ultrasonic allow it provided quick and accurate result.
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14 changes: 7 additions & 7 deletions docs/Sensors_and_actuators/WS2812B.md
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# Multi-color LED WS2812B
# Multi-color LED (WS2812)

![pic_70](images/WS2812B_0.jpg)
## Introduction
Multi-color LED WS2812B is an integrated LED chip which can create different RGB color. Using programming, user can pick any one of color in 16 million color and showing it.
Multi-color LED (WS2812) is an integrated LED chip which can create different RGB color. Using programming, user can pick any one of color in 16 million color and showing it.
<P>


## The principle

The WS2812B have a small chip inside the module, which handle the incoming data and communicate with the next WS2812B in the serial.
The WS2812 have a small chip inside the module, which handle the incoming data and communicate with the next WS2812B in the serial.
WS2812B operation under digital, user need to follow the special logic representation to transmits the data. <P>
![pic_70](images/WS2812B_1.png)

WS2812B allow connect to other WS2812B and share the signal line, but benefit from the data transmission policy, it can use the single line to control all the light individually.<P>
WS2812 allow connect to other WS2812B and share the signal line, but benefit from the data transmission policy, it can use the single line to control all the light individually.<P>
![pic_70](images/WS2812B_2.png)

For each WS2812B, there are three 8bit color LED (Green, Red, Blue) inside, so each 2812B required total 24bit of data in once action.
For each WS2812, there are three 8bit color LED (Green, Red, Blue) inside, so each WS2812 required total 24bit of data in once action.
![auto_fit](images/WS2812B_3.png)

After the 24 bits data read by WS2812B, the remaining data bit will pass to next 2812B(if need), so the next 2812B is possible to read another set of data to produce different color.<BR>
After the 24 bits data read by WS2812, the remaining data bit will pass to next WS2812(if need), so the next WS2812 is possible to read another set of data to produce different color.<BR>
When all the data bit is sent, another 50us reset code is required to let chip understand the transmission is end and control the led to emit the light. <P>
![auto_fit](images/WS2812B_4.png)

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## Result

The WS2812B following the program to change the color
The WS2812 following the program to change the color
![pic_50](images/WS2812B_9.gif)


4 changes: 2 additions & 2 deletions docs/smartcity/1_Introduction.md
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Expand Up @@ -37,8 +37,8 @@ No | Component |Quantity|Remark
11|180° Servo|1|
12|Cardboard-wooden Model|1|
13|City Map|1|
14|Module Wire(3P\*8,4P\*1)|9|
15|Extension Wire(3P\*5,4P\*2,Servo\*1)|8|
14|Module Wire|9|3Pin\*8,4Pin\*1
15|Extension Wire|8|3Pin\*5,4Pin\*2,Servo\*1
16|Screw M2\*10mm|12|
17|Screw M3\*10mm|6|
18|Screw M4\*10mm|30|
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2 changes: 1 addition & 1 deletion docs/smartcity/2_IOTbit.md
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<H3>4-Pins Module Port</H3><BR>
![pic](images/2_IOT/iot_image12.png)
<P>On the IoT Bit, two ports are reserved for the 4 Pins Module. Each port can connect to some sensors or actuators which required use two I/O Pins at the same time, such Distance Sesnor and Motor. In total, there are 4 I/O Pins being used, they are P12, P13, P14, P15 respectively.
<P>On the IoT Bit, two ports are reserved for the 4 Pins Module. Each port can connect to some sensors or actuators which required use two I/O Pins at the same time, such Distance Sesnor. In total, there are 4 I/O Pins being used, they are P12, P13, P14, P15 respectively.

<H3>I2C Port</H3><BR>
![pic](images/2_IOT/iot_image15.png)
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