点读笔芯片资料，集成mp3解码、隐形二维码识别，丰富的接口包括：USB、NANDFLASH、T卡、GPIO、12BIT ADC等-Point reading pen chip data integrated mp3 decoder, invisible two-dimensional code recognition, rich interfaces including: USB, NANDFLASH, T card, GPIO, 12BIT ADC, etc.

MT402是一种单声道USB麦克风方案，内置sigma-delta ADC、麦克风前置增益放大器、 锁相环、音量增益调节器和USB收发器。它是非常适合USB电脑麦克风录音的应用。即插即用，无需安装驱动程序。-MT402 is a mono USB microphone solutions built sigma-delta ADC, microphone pre-amplifier gain, PLL, volume gain regulator and USB transceiver.

USB转储 LCD显示 电能计量 ADC配置 看门狗驱动 中断定时器-LPC1752 drive ADE7753 and flash drive and EEPROM drive and ADC drive