產品說明5
※本產品原廠代理從國外進口,有些交期較長,下訂前請詢問!
Adafruit 12-Key Capacitive Touch Sensor Breakout
電容式觸摸傳感器突破 - MPR121 - STEMMA QT (ada1982)
Adafruit 12-Key Capacitive Touch Sensor Breakout 電容式觸摸傳感器突破 - MPR121 | Adafruit 12-Key Capacitive Touch Sensor Breakout - MPR121 - STEMMA QT |
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舊版本影片(2014/7/30):https://youtu.be/iQGsR595MeM
What is STEMMA QT 影片說明: https://youtu.be/6GXRRuFuFy0
TECHNICAL DETAILS
- Uses I2C 7-bit address 0x5A (can be set to 0x5B, 0x5C or 0x5D)
Revision History:修訂記錄
- As of Jan 21, 2021 - We've updated this sensor to our STEMMA QT standard for sensors. We have two STEMMA QT connectors on either side for quick connectivity. The physical size of the board and two mounting holes location have not changed. However, we did change the power/I2C breakout section pinout to match our standard pinout order!
自2021年1月21日起-我們已將該傳感器更新為STEMMA QT傳感器標準。兩側都有兩個STEMMA QT連接器,用於快速連接。電路板的物理尺寸和兩個安裝孔的位置均未更改。但是,我們確實更改了電源/ I2C中斷部分的引腳排列,以匹配我們的標準引腳排列順序!
Add lots of touch sensors to your next microcontroller project with this easy-to-use 12-channel capacitive touch sensor breakout board, starring the MPR121. This chip can handle up to 12 individual touchpads.
這款易於使用的12通道電容式觸摸傳感器分線板由MPR121為主,可以在您的下一個微控制器項目中添加很多觸摸傳感器。該芯片最多可以處理12個單獨的觸摸板。
The MPR121 has support for only I2C, which can be implemented with nearly any microcontroller. You can select one of 4 addresses with the ADDR pin, for a total of 48 capacitive touch pads on one I2C 2-wire bus. Using this chip is a lot easier than doing the capacitive sensing with analog inputs: it handles all the filtering for you and can be configured for more/less sensitivity.
MPR121僅支持I2C,幾乎可以用任何微控制器來實現。您可以使用ADDR引腳選擇4個地址之一,以便在一條I2C 2線總線上總共使用48個電容式觸摸板。使用該芯片比通過模擬輸入進行電容感測要容易得多:它可以為您處理所有濾波,並且可以配置為更高/更低的靈敏度。
This sensor comes as a tiny hard-to-solder chip so we put it onto a breakout board for you. Since it's a 3V-only chip, we added a 3V regulator and I2C level shifting so it's safe to use with any 3V or 5V microcontroller/processor like Arduino. We even added an LED onto the IRQ line so it will blink when touches are detected, making debugging by sight a bit easier on you. Comes with a fully assembled board, and a stick of 0.1" header so you can plug it into a breadboard. For contacts, we suggest using copper foil or pyralux, then solder a wire that connects from the foil pad to the breakout.
該傳感器是一個很小的難焊芯片,因此我們為您將其放在分線板上。由於它是僅3V的芯片,因此我們添加了3V穩壓器和I2C電平轉換,因此可以安全地與Arduino等3V或5V微控制器/處理器一起使用。我們甚至在IRQ線上添加了一個LED,以便在檢測到觸摸時它會閃爍,從而使目視調試變得更加容易。配備了一個完全組裝板和0.1“頭,所以你可以將它插入麵包板的棒。對於接觸,我們建議使用銅箔或的Pyralux,然後焊料從箔襯墊的突破所連接。電線
Getting started is a breeze with our Arduino library and tutorial. You'll be up and running in a few minutes, and if you are using another microcontroller, it's easy to port our code.
入門我們的Arduino庫和教程輕而易舉,幾分鐘後就可以啟動並運行,如果您使用的是其他微控制器,則可以輕鬆移植我們的代碼。
當然,我們不會給您數據表和“好運!” -我們編寫了詳細的教程,展示瞭如何連接傳感器,如何將其與Arduino或CircuitPython / Python一起使用以及示例代碼,這些示例代碼可以使傳感器記錄數據並檢測觸摸!
似乎還不夠,我們現在還 為I2C總線添加了 SparkFun qwiic 兼容的 STEMMA QT連接器,因此您甚至不需要焊接I2C和電源線。只需使用STEMMA QT適配器電纜將其連接到您喜歡的微型 麥克風即可。 Stemma QT連接器還意味著MPR121可以與我們的 各種相關附件一起使用。 QT電纜不包括在內,但我們的商店種類繁多。