VanRayal USB 2.0 to TTL UART 6PIN CP2102 Module Serial Converter For STCDescription:Works fine for me with Win7 and Mac OS X.11, El Capitan, with multiple peripherals: Arduinos, ESP 8266, and Bluetooth modules. OS X needs a SiLabs driver for the CP2102 chip, which you may have already, since it's become a very popular. For OS X.11, I think v. 4.x (legacy) works better than v. 5 (also claimed to work for El Capitan) and it's included when you download the current driver from silabs.com.The RX/TX pins use 3.3 v, so you should use a level shifter for devices (most Arduinos) that have 5v at their TX pin -- i.e. level-shift Arduino's TX to this module's RX pin. No need to level shift this module's TX to Arduino's RX since 3.3v is seen as HIGH.The drivers for this chip:CP210x driver for Mac 10.11 from https://www.silabs.com/Support%20Documents/Software/Mac_OSX_VCP_Driver.zip The 3.3V output is available on one of the side holes on the board. The 5V output is available on one of the connection pins. The gnd connection pin is just what it says - it is the ground (or common) connection. You need to cut a track and solder to another track to get 3.3v levels.Package included:1 x VanRayal USB 2.0 To TTL UART 6PIN Module 1 x Cable(Random Color)
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