聲控感應器指令
Sound Sensor Block

這個指令是聲音的偵測器。依據所設定的聲音數值，使用資料線傳遞目前聲音的數值及邏輯符號(真/假)
This block is a sound detector. Using data wires, it can send out the current sound value and a logic signal (true/false) based on whether the current sound value falls above or below a trigger point.

觸發點是指一個讓某種情況發生的特定數值,例如,當機器人只有在音量超過60%前進,那麼觸發值就應該設為60.
A trigger point is the specific value in a range of numbers where a change in condition occurs. For example, you might program your robot to move forward only when the sound level rises above 60%. The trigger point would be 60.

使用滑桿或是鍵盤輸入觸發值,並須指定感應器的偵測範圍(觸發值以上或是以下).可用單選按鍵或是下拉式選單選擇,範圍內的數值會發送"真"值訊號,而真值範圍的滑桿為彩色,則偽值範圍的滑桿為灰色.
Specify the trigger point by using the slider or by typing a value into the input box. To specify the range (above or below the trigger point) that will generate the “true” signal, use the radio buttons or the pull-down menu. The “true” portion of the range will be in color; the “false” portion will be gray.

預設值為音量超過50%時會產生"真"值訊號,滑桿兩側的單選按鍵是觸發值以上或以下範圍(真值)的設定.
The default setting for the sound sensor block is for sound levels above 50% to generate a “true” signal. The radio button to the right of the range is selected and the slider is set at 50. To switch the “true” portions of the range (setting values below 50% as “true”), you would select the left radio button.

參數面板的回饋區顯示現在讀取到的音量數據(請先確定感應器連接到指定的輸入端並操作正常).
The feedback box in the configuration panel shows the current sound value. (To receive feedback, make sure that the sensor is connected to the chosen port and that communication has been established with the NXT.)

至少必須使用一條輸出資料線來傳遞數據到其他的指令.
You must drag at least one output data wire from this block’s data hub to another block for any information to be sent. (See the Data Hub section for more information.)

顯示設定
Display Settings

1. 顯示聲音感應器所連接的NXT輸入端,視需要更改.
   The number shows which of your NXT’s ports is connected to the sound sensor. You can change this number in the configuration panel if you need to.
2. 此圖樣顯示觸發值的音量,越多格數表示觸發值越高.
   This icon indicates at what level the trigger point is set. The more colored bars displayed, the higher the trigger point.
3. 當指令放在工作區時,資料集線器會自動打開.至少必須使用一條輸出資料線來傳遞數據到其他的指令.(參閱下方的資料集線器資訊)
   The block’s data hub will open automatically when the block is attached to a sequence beam. At least one data wire must be dragged from the block’s output plug to another block’s data hub. (See the Data Hub section below for more information.)

設定聲控感應器指令
Configuring the Sound Sensor Block

1. 選擇聲控感應器連接的輸入端.預設值為輸入端2,依需要改變.
   Choose the port where your touch sensor is plugged in. By default, the block will be set to port 2 for a sound sensor. You can change this selection if you need to.
2. 滑桿的功用在於設定觸發音量值或是直接輸入數字.如果點選滑桿右邊的單選按鈕,則會在超過觸發值時觸發指令,如果點選滑桿左邊的單選按鈕,則會在低於觸發值時觸發.也可以使用下拉式選單來設定"真"值區域.
   Use the slider to set the trigger value or type a value directly into the input box. Select the radio button to the right of the slider if you want the block to be triggered by sound levels higher than the trigger value; select the left radio button to trigger the block with sound levels lower than the trigger value. You can also use the pull-down menu to set the “true” portion of the slider.
3. 回饋區顯示當時偵測到的音量值(0-100%).可用來決定不同的觸發值.
   The feedback box displays the current sound reading (0-100%). You can use it to try out different trigger values.

設定聲音感應器指令的資料集線器
Configuring the Sound Sensor block’s Data Hub

用資料線可以任意地用來控制聲控感應器指令.(從其他指令的資料集線器到聲控感應器指令的資料集線器).
You can control the Sound Sensor block dynamically by connecting data wires (from other blocks’ data hubs) to the Sound Sensor block’s data hub.

把指令放在工作區上後,可以按圖示的左下角來打開資料集線器.
Open a block’s data hub by clicking the tab at the lower left edge of the block after it has been placed on the work area.

連接到集線器左邊連接埠的資料線是屬於負責傳遞資料進入指令中,而要從指令送出資料時,則須從集線器的右邊連接埠連接資料線.
Data wires carrying input information to a block are connected to the plugs on the left side of its data hub. Data wires carrying output information are connected to the plugs on the right side.

[A]輸入連接埠 [A] Input plug
[B]輸出連結部 [B] Output plug
[C]數字資料線(黃) [C] Number data wire (yellow)
[D]邏輯資料線(綠) [D]Logic data wire (green)
[E]文字資料線(橘) [E]Text data wire (orange)
[F]無效資料線(灰) [F]Broken data wire (gray)

資料由輸入端傳至傳出端
Passing from the input plug to the output plug

如果輸入連接埠有對應的輸出連接埠(請參閱 A 以上)時,那麼輸入的資料就會原封不動地傳遞到輸出連接埠.在這樣的情況下, 如果輸入連接埠連著資料線,那麼就只能使用輸出連結埠來做連結. 也就是說,當連結輸出連接線到這樣的輸出連接埠,而不透過相對應的輸入資料線時,就會讓該輸出連接線呈現無效的狀態.
If an input plug has a corresponding output plug (see A above), the input data will pass through from the input plug to the output plug without being changed. In this case, you can only use the output plug if the input plug is connected to an input data wire; connecting an output data wire to such an output plug without a connected input data wire will cause the output data wire to be “broken” (and colored gray).

特定的資料型態
Data wires carry specific types of data

每條資料線都負責傳送特定資料.例如,一條從邏輯連接埠拉出的資料線則只能連結到另一個同屬邏輯連接埠的集線器上.
Each data wire carries a specific type of data between blocks. For example, if a data wire is dragged from a logic plug on a block’s data hub, it can only be connected to a logic plug on another block’s data hub. The chart below shows what kind of data each plug can accept or send out.

資料線顏色
Data wire colors

資料線依照特定的顏色作識別:黃色資料線傳送數值資料、綠色資料線傳送邏輯資料(真/偽)及橘色資料線傳送文字資料
Data wires are identified with specific colors: wires carrying number data are colored yellow, wires carrying logic data are colored green, and wires carrying text data are colored orange.

無效的資料線
“Broken” data wires

如果資料線連結到錯誤資料型態的連接埠時,則該資料線會呈現斷線無效狀態並以灰色表示.而有無效的資料線存在就無法下載程式.
If you try to connect a data wire to a plug of the wrong data type, the data wire will be broken (and colored gray). You will not be able to download your program if a data wire is broken.

點選無效的資料線時,在工作區右下方的幫助視窗中會看到無效的原因.
If you click a broken wire you can read why it is broken in the small help window in the lower right corner of the work area.

資料必須在連接埠的限制範圍內
Data must bewithin the possible range of the plug

如果資料線傳輸該連接埠資料範圍之外的資料時,該指令不是忽略資料就是轉成合理範圍內的資料.對那些只能接收少量輸入值的連接埠來說(例如,0,1,或2),該連結埠就會忽略超出範圍的數值.
If an input data wire transmits a value outside the possible range of the plug it is connected to, the block will either ignore the value or change it to a value within its range. For plugs that allow just a few input values (example: just 0, 1, or 2), the plug will ignore the input if a value arrives outside its range.

而對那些可以接收大量範圍輸入值(例如: 0~100)的連接埠來說,該連接埠就會將數值轉成可接受的範圍. 例如, 移動指令的動力連接埠接收到150的輸入值時,那麼移動指令就會轉成100(也就是動力連接埠的範圍內).
For plugs that accept larger input ranges (example: 0 – 100), the plug will force any input outside its range to fit. For example, if a Move block’s Power plug receives an input value of 150, the block will change the input value to 100 (i.e., a number within the Power plug’s range).

下表列出本資料集線器中各連接埠的特性
This chart shows the different characteristics of the plugs on the Sound Sensor block’s data hub:

	連結埠 Plug	資料型態 Date Type	資料範圍 Possible Range	資料意義 What the Values Mean	連接埠例外說明 This Plug is Ignored When...
	輸入端 Port	數字 Number	1 - 4	1 = 輸入端1, 2 = 輸入端2, , 3 = 輸入端3, 4 = 輸入端4 1 = Port 1, 2 = Port 2, 3 = Port 3, 4 = Port 4
	觸發值 Trigger Point	數字 Number	0 - 100	用來比較的數值 Value to compare against
	大於 / 小於 Greater / Less	邏輯 Logic	真/偽 True/False	比較方式: 真 = 大於, 偽 = 小於 Logic used in comparison: True = Greater, False = Less
	A加權網路測量分貝 dBA	邏輯 Logic	真/偽 True/False	真 = A加權網路測量模式 偽 = 分貝模式 True = dBA mode False = dB mode
	是 / 否 Yes / No	邏輯 Logic	真/偽 True/False	比較結果 Result of comparison
	音量 Sound Level	數字 Number	0 - 100	感應器讀到的數值(已轉換) Scaled value read from sensor
	原始數據 Raw Value	數字 Number	0 - 1024	感應器讀到的原始數值(未轉換) Raw (unscaled) value read from sensor