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有没有用过语音猫的朋友。 最近弄到一块语音猫，在语音猫的speaker、MIC插孔上插上我的耳机和麦克风，通过超级终端可以拨出电话号码，对方可以接听，我可以听到对方的讲话，但是对方听不到我的麦克风里的声音。

STM103V100-II是英蓓特公司新推出的一款基于ST意法半导体STM32系列处理器的全功能评估板。STM103V100-II评估板有USB，Motor Control ，CAN,SD卡，Smart 卡，UART，Speaker，LCD，LED，BNC，耳塞插孔等丰富的外设，有助于用户轻松开发STM32的强大功能。此为操作手册 ...

The SP486 and SP487 are low–power quad differential line drivers meeting RS-485 and RS-422 standards. The SP486 features a common driver enable control the SP487 provides independent driver enable controls for each pair of drivers. Both feature tri–state outputs and wide common–mode input range. ...

VoyagerGX display driver for Windows CE .NET 5.XX Silicon Motion, Inc. VoyagerGX Driver is architected from the beginning to support variety of features and extension of Windows CE .NET, such as DirectDraw feature, Dynamic Rotation feature, Multimon feature, SMI Multimon Emulation feature (using si ...

this is a digital intercom projects using ADC PWM and UART interrupt. you take the value from mic enter it to ADC and then send serially to the other microcontroller which receives the data and transform the digital data into analog data by PWM which is connected to speaker

USBHostSlave is a USB 1.1 host and Device IP core. – Supports full speed (12Mbps) and low speed (1.5Mbps) operation. – USB Device has four endpoints, each with their own independent FIFO. – Supports the four types of USB data transfer control, bulk, interrupt, and isochronous transfers. – Host ...

SPREAD SPECTRUM MODULATION TECHNIQUES -spread spectrum - those modulation methods that are producing a signal whose spectrum is more wider than of the data signal, the occupied frequency band being independent by the signal of data band. -The signals with spread spectrum of direct sequence type BPSK ...

The code performs a number (ITERS) of iterations of the Bailey s 6-step FFT algorithm (following the ideas in the CMU Task parallel suite). 1.- Generates an input signal vector (dgen) with size n=n1xn2 stored in row major order ...

Open source computer vision library in C/C++. &#1048709 Optimized and intended for real-time applications. &#1048709 OS/hardware/window-manager independent.

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