資料來源:https://www.sparkfun.com/products/12918
You’ve always wanted to output analog voltages from a microcontroller, the MCP4725 is the DAC that will let you do it! The MCP4725 is an I2C controlled Digital-to-Analog converter (DAC). A DAC allows you to send analog signal, such as a sine wave, from a digital source, such as the I2C interface on the Arduino microcontroller. Digital to analog converters are great for sound generation, musical instruments, and many other creative projects!
This version of the MCP4725 Breakout fixes a few issues with the board including the IC footprint, the I2C pinout, changes the overall board dimensions to better fit your projects, and a few more minor tweaks. This board breaks out each pin you will need to access and use the MCP4725 including GND and Signal OUT pins for connecting to an oscilloscope or any other device you need to hook up to the board. Also on board are SCL, SDA, VCC, and another GND for your basic I2C pinout. Additionally, if you are looking to have more than one MCP4725 on a bus, the pull-up resistors on this board can be disabled just check the Hookup Guide in the Documents section below for instructions and tips on doing this.
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你總是想從微控制器的輸出模擬電壓,MCP4725是,可以讓你做到這一點DAC! MCP4725是一個I 2 C控制的數字-模擬轉換器(DAC)。一個DAC允許你發送模擬信號,如正弦波,從數字信號源,如Arduino的微控制器的I 2 C接口。數模轉換器(DAC)是偉大的發聲,樂器等眾多創意項目!
這MCP4725中突圍的版本修復了一些問題與董事會包括IC封裝中,I 2 C引腳配置,改變了整個電路板的尺寸,以更好地滿足您的項目,還增加了一些小的調整。該板再起每個引腳,您將需要訪問和使用MCP4725包括GND和信號輸出引腳連接到示波器或者你需要掛接到船上的任何其它設備。車上還都是SCL,SDA,VCC和GND又為你的基本的I 2 C引腳。此外,如果你正在尋找有一個公共汽車上有多個MCP4725,該板的上拉電阻可以禁用只檢查聯播指南下面做此說明和提示的文檔部分。
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