1 Meter Long Brush Cable PL2303HX USB to COM USB to TTL Cable Download Cable Upgrade Small Board

Wire sequence definition red +5V, black GND, white RXD, green TXD

(The new design of this product has more 3.3v welding port, but you need to disassemble the USB shell welding)

Special Notes:

(A) This connection is only selling one brush line and one tool. We are not familiar with the use of the method, so we can not provide guidance on the operation. Because there are many models on the market, and each person's hands-on ability is very different, so we do not guarantee that you can succeed. What's more, don't give us a favorable or unfavorable review because you didn't succeed, then we will be more than sinuses still complain!

(B) we send out each one is tested, here to remind buyers please do not get directly after the operation, so as not to be considered a problem. First of all do a simple test, the method is very simple: if you plug the line in the computer, the computer prompts "find new hardware ...." If you plug the cable into the computer, the computer prompts "find new hardware ", with a multimeter black pen (GND), red pen to connect (RX) and (TX) can be measured voltage, it shows that the board must be good. Special note here, if the (GND) to the device has a voltage on the pins, power must burn, so the user must be accurately measured before wiring the device pins, so as not to cause unnecessary losses!

Some buyers accidentally burned the chip or do not know how to operate or the machine itself does not support upgrades, said that our board has a problem, etc., please such buyers bypass, thank you. Such cases do not give returns or refunds behavior, and do not receive comments and bad reviews.

Note: In setting the 3.3V and 5.0V output (this is the power supply to the microcontroller, upgrade the machine is not used), please pull out the board from the computer, in setting the jumper risk, do not operate with electricity, so as not to damage the device.

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Pin connection and description:

Before connecting, please be sure to find the pin definition, especially GND must not be connected to a voltage pin, and RX and TX terminal should not be connected to the VCC pin, (the actual measurement of some of the VCC pin voltage up to 14V.) Connected to the wrong must be burned to the adapter chip, be sure to pay attention to, do not take their own board to do the experiments, otherwise burned we are not responsible for any of the responsibility. Be sure to find a good pin definition in the connection.

Connection method: again, only 3 lines are needed to brush, generally only used to RX TX GND three signal lines, VCC do not have to connect. Above is 4, 5-pin friends, do not need to connect VCC and BT pin. When using, please connect the RXD to the target board TX, TXD to the target board RX, GND to GND, if not, the pair of RX and TX.

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Connection method:

RX to TX.

TX to RX;

Ground to ground (GND to GND)

USB to serial board function.

1 Simple serial communication.

2 Router or ADSL firmware upgrade.

3 GPS serial communication.

4 Hard disk firmware upgrade.

5 Easy to use, RX to the MCU's TX; TX to the MCU's RX. in the ground. And no need to use MAX232 conversion.

6 Terminal use; commonly used serial debugging tools.

7 Various satellite machine upgrade.

etc. ............... General-purpose USB to serial small board

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