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BREW编程 brew you can hear sound tone
brew you can hear sound tone
*行业应用 hi.. this will send a 1kHz sinewave tone to ouput with led on for 10sec.
hi.. this will send a 1kHz sinewave tone to ouput with led on for 10sec.
单片机编程 多音频讯号的量测及分析系统--DAQ Card的应用
量测/测试所面临之问题
此测试验证上，要使用NI公司之LAB VIEW及DAQ CARD来取代AUDIO PRECISION及其所附软体ATS。首先需克服硬体解析度上的差异，再来是FFT（FAST FOURIER TRANSFORM,快速传立业转换）演算未予的撰写，这将会影响MULTI-TONE讯号上PEAK值的侦测。另外，以RS-232为I/O介面，并呼叫客户所提供之DLL档来与DUT内 ...
无线通信 数字卫星设备控制兼容的天线供电系统设计
Abstract: This application note discusses a design for a phantom antenna power-supply system compatible with theDigital Satellite Equipment Control (DiSEqC) communication standard, using the MAX16948 automotive dual, highvoltageLDO/switch. The presented application circuit provides a remote antenn ...
视频教程 Arduino 328控制板制作音乐
   要生产音频脉冲，只要算出某一音频的周期(1/频率)，可以利用定时器计时的方式得到此频率的脉冲。而Arduino平台“封装”了新的数字输出函数tone()。更简易的实现喇叭和蜂鸣器唱歌。
tone(pin, frequency)，Arduino会向指定pin发送制定频率的方波，执行noTone()函数来停止。
tone(pin, frequenc ...
源码 TMS320VC5416-DSK-example
A simple example of audio signal processing on TMS320VC5416 USB DSK board. Main source is contained in tone.c file, memory configuration - tonecfg.cmd. Folder docs/ contains useful docmentation on board, its components and libraries. The example's configuration is based on example "tone" from Code C ...
技术资料 MT2625 datasheet v1.2
MT2625 DatasheetVersion: 1.2Release date: 31 January 2018NB-IoT transceiver• Compliant with 3GPP R13/R14 NB-IoT standard• Supports DL 200kHz bandwidth/UL single tone and multi-tone• Supported RF bands: B1/B2/B3/B5/B8/B11/B12/B13/B17/B18/B19/B20/B21/B25/B26/B28/B31/B66/B70/B71• Supports PSM and e ...