WRTnode connection TTL to USB devices

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WRTnode PIN
Ttl1.png

USB to TTL
Ttl2.png

WRTnode connection USB to TTL devices
Ttl5.png

Red is VCC, not connected.
RX ——》 Receive
TX ——》 Transmit
GND——》GND
Drive:
Downloadand install the usb to ttl drive
In WIN8 need to disable the driver installed under automatic updates.
As shown, if there is an exclamation point, indicating that the driver installation fails
Ttl9.png

Uninstalling this driver
Ttl10.png

Disable automatic update drivers
Open the Control Panel -> Devices and Printers, find your own computer name in the device, the right to enter the installation settings, as shown below:
Ttl11.png

Save the changes.
Install a already downloaded the driver

Download serial debugging software PuTTY
Baidu search and download Putty or directly click download PuTTY
Open the computer's Device Manager to view the corresponding port number.
Ttl6.png

Start PuTTY
Ttl7.png

After setting the TTL unable to enter into the serial, press the map settings.
Ttl8.png