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USB to serial module CP2102 module USB to TTL STC

CD0117121902

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Seller Name : 3D World
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CP2102 module USB TO TTL USB to serial module UART STC Downloader

Tips?Very ant?:
TXD: Send side, generally expressed as their own sender, normal communication must be connected to another device RXD.
RXD: the receiver, generally designated himself on the receiving end, normal communication TXD must be connected to another device.
When normal communication itself TXD RXD always connected device!
Since the resumption of spontaneous: RXD when normal communication TXD connected to other devices, so if you want to receive data sent by itself as the name suggests, is to receive the data they transmit their own, that is directly connected to its own TXD RXD, used and receive test itself It is normal, is the quickest and easiest way to test when there is a blem to do the first test to determine whether a duct failure. Also known as the loopback test.

Level logic:
TTL level: usually binary data representation, visions equivalent to + 5V logic 1,0V equivalent to a logic 0, called TTL signal system, is positive logic
RS232 level: the use of -12V to -3V, equivalent to a logic 0, + 3V to + 12V logic level equivalent to logic 1, negative logic

duct manual:
1, the main chip CP2102, generate a virtual serial port after installing the driver
2, USB to take power, leads to the interface includes 3.3V ?40mA?, 5V, GND, TX, RX, pin signal level is 3.3V, positive logic
3, on-board status indicators, the transceiver lights, right after installing the driver status indicator lit, send and receive indicator flashes when the communication baud rate, the higher the lower the brightness
4, support the baud rate between 300bps ~ 1Mbps
5, the communication format support: 1?5,6,7,8 data bits; 2?Support 1.5, 2 stop bits; 3?odd, even, mark, space, none parity
6, supported operating systems: windows vista / xp / server 2003/200, Mac OS-X / OS-9, Linux
7, USB head is male, can be connected directly to the computer USB port
8, SMD components for the SMT duction cess, and stability
9, does not have USB head volume:?mm)



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SKU CD0117121902
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