產品說明4
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Adafruit MCP2221A Breakout - General Purpose USB to GPIO ADC I2C - Stemma QT / Qwiic (ada4471)
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影片:https://youtu.be/u4DSzp77xwk
What is STEMMA QT 影片說明: https://youtu.be/6GXRRuFuFy0
Wouldn't it be cool to drive a tiny OLED display, read a color sensor, or even just flash some LEDs directly from your computer? Sure you can program an Arduino or Trinket to talk to these devices and your computer, but why can't your computer just talk to those devices and sensors itself? Well, now your computer can talk to devices using the Adafruit MCP2221A breakout board!/驅動一個微型 OLED 顯示器、讀取顏色傳感器,甚至直接從計算機上閃爍一些 LED 不是很酷嗎? 當然,您可以編寫一個 Arduino 或 Trinket 來與這些設備和您的計算機對話,但為什麼您的計算機不能只與這些設備和傳感器本身對話呢? 好了,現在您的計算機可以使用 Adafruit MCP2221A 分線板與設備通信了!
What can the MCP2221 chip do? This chip from Microchip is similar to a USB to serial converter chips but adds a GPIO and I2C interface as well. The analog/digital GPIO pins can act as 10-bit analog inputs (ADC) and there's even a 5-bit DAC output. The I2C interface is great for talking to OLEDs, sensors, PWM drivers, its the most popular interface for small devices. You can use the GPIO to do things like flash LEDs, read switches or buttons, and more. The MCP2221A breakout is like adding a little swiss army knife for serial protocols to your computer!/MCP2221芯片能做什麼? Microchip 的這款芯片類似於 USB 到串行轉換器芯片,但也增加了 GPIO 和 I2C 接口。 模擬/數字 GPIO 引腳可以用作 10 位模擬輸入 (ADC),甚至還有 5 位 DAC 輸出。 I2C 接口非常適合與 OLED、傳感器、PWM 驅動器通信,它是小型設備最流行的接口。 您可以使用 GPIO 來執行閃爍 LED、讀取開關或按鈕等操作。 MCP2221A 突破就像為您的計算機添加了一把用於串行協議的瑞士軍刀!
This chip is powerful and useful to have when you want to use Python (for example) to quickly iterate and test a device that uses I2C or general purpose digital and analog I/O. There's no firmware to deal with, so you don't have to deal with how to "send data to and from an Arduino which is then sent to and from" an electronic sensor or display or part./當您想使用 Python(例如)快速迭代和測試使用 I2C 或通用數字和模擬 I/O 的設備時,該芯片功能強大且非常有用。 無需處理固件,因此您不必處理如何“向 Arduino 發送數據和從 Arduino 發送數據,然後從 Arduino 發送數據”,然後從電子傳感器或顯示器或部件發送數據。
此分線板具有 MCP2221A 芯片、USB C 連接器、板載 3V 穩壓器和 4 針 JST SH 端口,用於 I2C 連接,具有 3V 電源和邏輯。 此端口與 Stemma QT / Qwiic 兼容,可與任何具有匹配端口的傳感器或芯片一起使用 - 您甚至可以使用適配器電纜連接 Grove I2C 設備,無需焊接! 有關 Stemma QT 的更多信息,請參閱本指南
在此處查看您可以使用的所有 Stemma QT 傳感器、電纜和設備。 在 Python 中使用此板非常簡單 - 查看我們的教程,了解如何開始使用我們的 Python 代碼通過 Mac/Win/Linux 控制 MCP2221A,並訪問我們的數百個 CircuitPython 庫和教程。
https://cdn-shop.adafruit.com/product-videos/1200x900/4471-04.mp4
相關文件
A simple way to get I2C, GPIO, ADC, and DAC support on any PC with USB.
Interact with sensors in real-time with Interactive Jupyter Notebooks and CircuitPython Libraries
Log sensor data from your PC to a Google Docs Sheet.