官方授權台灣代理分銷
DTMF（雙音多頻）盾
原名
DTMF(Dual Tone Multi Frequency) Shield
貨號
107990009
分類
Shields
特價
1,002
商品停售
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資料來源：https://www.seeedstudio.com/DTMF%28Dual-Tone-Multi-Frequency%29-Shield-p-1839.html
Description
The DTMF Shield for Arduino converts DTMF or Touch Tone signals into a format that microcontrollers (uC) or Arduino boards can understand. DTMF tones are analog signals that Arduino and most uC cannot read directly. This module converts those signals into a digital format that uC can easily read.
Here is the functional diagram of the DTMF Shield.
The DTMF Module is specifically designed to plug right into the Arduino boards, but it can also be used with a variety of microcontrollers.
Demo of DTMF Shield for Arduino
See other demo videos here.
Note: some these videos show an earlier board version with no Arduino headers. The formal version of sale has headers to right into an Arduino board
Features
- Operating Voltage: 5v, Current draw: 3mA
- Input signal range: 27.5 to 869mVrms (-29 to 1dBm )
- Trim pot for easy gain adjustment.
- 3.5mm stereo audio jack (TRS) and 0.1″ standard interface headers
- LED to indicate tone decoded
Specification
- Dimension: 0.79″ x 2.16″, 20mm x 55mm
Documents
- DTMF Shield User Manual
- Library and Sample Sketch: download
- DTMF Module Schematics
- Datasheet for Holtek HT9170B DTMF decoder IC
- Demo videos
Technical Details
| Dimensions | 100mm x 80mm x 16mm |
| Weight | G.W 10g |
| Battery | Exclude |
描述
該DTMF盾Arduino的轉換DTMF或按鍵音信號轉換成微控制器（UC）或電路板的Arduino可以理解的格式。 DTMF音調是阿爾杜伊諾和多數的uC不能直接讀取的模擬信號。這個模塊將那些信號轉換成的uC可以很容易地讀出的數字格式。
這裡是DTMF盾的功能框圖。
該DTMF模塊是專為堵塞右進Arduino的板，但它也可以與多種微控制器使用。
DTMF盾的Arduino的演示
請參閱其他演示視頻在這裡 。
注意：這些視頻表明，沒有頭的Arduino早期版本板。銷售的正式版本有頭向右到Arduino板
特徵
- 工作電壓：5V，電流消耗：3毫安
- 輸入信號範圍：27.5到869mVrms（-29至1dBm的）
- 修剪，便於增益調節鍋。
- 3.5mm立體聲音頻插孔（TRS）和0.1“標準接口頭
- LED指示音解碼
規範
- 尺寸：0.79“×2.16”，20毫米毫米x 55毫米
文件
- DTMF盾用戶手冊
- 庫和示例素描： 下載
- DTMF模塊示意圖
- 數據手冊盛群HT9170B DTMF解碼器IC
- 演示視頻
