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mLink 4x4 Matrix Keypad

mLink 4x4 Matrix Keypad - Main image
mLink 4x4 Matrix Keypad - View 2mLink 4x4 Matrix Keypad - View 3Pictured with Uno and cable (not included)mLink 4x4 Matrix Keypad - View 5mLink 4x4 Matrix Keypad - View 6
$4.53 $6.66 In stock

Category: 專案硬體

mLink 4x4 矩陣鍵盤是一款可面板安裝的序列（I2C/IIC）16 按鍵觸感鍵盤。鍵盤背面裝有 mLink 模組，會持續掃描鍵盤（具備自動防彈跳）以偵測任何按鍵動作。若有按鍵被按下，模組會將該按鍵儲存為 8 位元 ASCII 值，之後可從其序列介面讀取。它與其他 mLink 或標準 I2C 模組相容，讓您僅使用微控制器的兩個 I2C 腳位，就能將多種不同類型的模組串接在一起。

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Customer Reviews (4.2 / 5 · 5 reviews)

Eli P. ★★★★★

Finally, a matrix keypad that doesn't require a million GPIO pins—the built-in I2C interface makes wiring a breeze. The tactile feedback on each key is satisfyingly clicky, perfect for my embedded project.

Samuel I. ★★★★★

Plugged it in and the I2C address detection was instant, no fiddling around. The built-in debouncing in the firmware means every keypress registers cleanly without the chatter you'd get building your own. Exactly what I needed for a clean panel mount project.

Hazel R. ★★★★☆

Wiring this up over I2C saved me a bunch of GPIO pins compared to scanning a raw matrix myself. The tactile keys have a decent click, though the panel mount tabs needed a little filing to sit flush in my enclosure.