SparkFun Qwiic Keypad – 12 Button 按鍵模組 鍵盤模組 IIC 通訊


SparkFun Qwiic Keypad – 12 Button 按鍵模組 鍵盤模組 IIC 通訊

NT$460 NT$390 (未稅)

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SparkFun Qwiic Keypad – 12 Button 按鍵模組 鍵盤模組  IIC 通訊

SparkFun Qwiic Keypad – 12 Button 按鍵模組 是非常方便的輸入設備,但是誰想綁紮七個GPIO引腳,連接幾個上拉電阻並編寫固件,卻浪費了寶貴的處理時間來掃描輸入的鍵?SparkFun Qwiic鍵盤完全組裝好,使添加12按鈕鍵盤的開發過程變得容易。無需電壓轉換或確定I 2 C引腳是SDA還是SCL,只需即插即用!利用我們方便的Qwiic系統,無需焊接即可將其連接到系統的其餘部分。但是,如果您更喜歡使用麵包板,我們仍然會斷開0.1英寸間距的插針。

鍵盤的12個按鈕中的每個按鈕均已標記為1、2、3、4、5、6、7、8、9、0,*和#,並已格式化為與電話鍵盤相同的佈局,且每個按鍵都有電阻範圍在10到150歐姆之間。Qwiic鍵盤讀取並存儲了最後15次按下的按鈕,並保存在先進先出(FIFO)堆棧中,因此您無需不斷從微控制器輪詢鍵盤。然後,可以通過Qwiic界面訪問此信息。SparkFun Qwiic鍵盤甚至具有軟件可配置的I 2 C地址,因此您可以在同一總線上具有多個I 2 C設備。

注意: Qwiic鍵盤的I 2 C地址為0x4B,並且可以通過跳線選擇為0x4A(可通過軟件配置為任何地址)。需要一個多路復用器/ Mux與一條總線上的多個Qwiic鍵盤傳感器進行通信。如果您需要使用多個Qwiic鍵盤傳感器,請考慮使用Qwiic Mux Breakout


  • 軟件可選從站地址
  • 低功耗ATtiny85控制器
  • 帶時間戳的按鈕
  • 默認的I 2 C地址:0x4B
  • 2個Qwiic連接器


Keypads are very handy input devices, but who wants to tie up seven GPIO pins, wire up a handful of pull-up resistors, and write firmware that wastes valuable processing time scanning the keys for inputs? The SparkFun Qwiic Keypad comes fully assembled and makes the development process for adding a 12 button keypad easy. No voltage translation or figuring out which I2C pin is SDA or SCL, just plug and go! Utilizing our handy Qwiic system, no soldering is required to connect it to the rest of your system. However, we still have broken out 0.1″-spaced pins in case you prefer to use a breadboard.

Each of the keypad’s 12 buttons has been labeled 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, *, and # and has been formatted to into the same layout as a telephone keypad with each keypress resistance ranging between 10 and 150 Ohms. The Qwiic Keypad reads and stores the last 15 button presses in a First-In, First-Out (FIFO) stack, so you don’t need to constantly poll the keypad from your microcontroller. This information, then, is accessible through the Qwiic interface. The SparkFun Qwiic Keypad even has a software configurable I2C address so you can have multiple I2C devices on the same bus.


  • Software Selectable Slave Address
  • Low Power ATtiny85 controller
  • Button Presses w/ Time Stamp
  • Default I2C Address: 0x4B
  • 2x Qwiic Connector



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