CH340G USB to TTL Converter or Compatible with Pro Mini Bootloader

Can be used for serial interface software downloading, programming, etc.

Feathers:

• Three status LED, PWR, TX and RX.
• Note: Only 5V can be used to power external target device, 3V3 only used for TTL.
• High-quality high-grade yellow pin, and durable.
• 3.3V and 5V by a short circuit risk selection;
• Supporting WINDOWS 98/ME/2000/XP/Server 2003/VISTA / Server 2008/Win7/Win8 32 bits / 64

Instructions for use:

• 3.3V and 5V choice depending on the actual application environment using the system to select 3.3V 3.3V, 5V 5V system of choice;
• If the driver and wiring are right, the module can not communicate properly,you can swap RXD and TXD two lines to try;
• The simplest module testing methods: TXD and RXD short circuit modules, open the serial debugging tools, just send something, then the module as back haul module no problem.