It works great for programming microcontrollers such for , boarduino, Bareduino, , ESP8266, Mini minimOSD, and Atmel Xmega Xplained, mini pro, or any other can be programmed over serial After installing the driver,This TTL adapter will simulate a port on your computer/laptop. Through this simulated port, you can communicate or program with various hardware or MCUs, such for board, , ESP8266, router and so on. Main chip: FT232BL Pin Definition: ,,RXD,TXD,GND,VCC Output VCC: 3.3V or 5V USB interface: 2.0 With 500MA -recovery fuse reversed does protection The maximum speed: 921600bps List of supported systems Windows xp,7,8,10 Ubuntu 11.10, kernel 3.0.0-19 10.3 to 10.8 (32 &64 bit) 10.9 and above(64 bit) Instructions for :(Example MCU) GND: to GND RXD: to MCU.TX (Signal : MCU.TX Greater than Greater than FT232 Greater than Greater than PC.) TXD: to MCU. (Signal : MCU. Less than Less than FT232 Less than Less than PC.TX) 3V3/5V: Output 3.3V or 5V (module powered by USB, jumper cap :to 3.3V or 5V) : to MCU. (Signal Direction: MCU. Less than Less than FT232 Less than Less than PC.) : to MCU. (Signal : MCU. Greater than Greater than FT232 Greater than Greater than PC.) Type:Voltage Regulator Operating Temperature:-40-+85 Application:Computer Package:DIY KIT Functions:Electronic Module Range of application:Switch And Sensor For color:Black+gold Material:PCB + electronic accessories Package Contents: 1 x FT232BL Module 1 x Line(Random color, 't accept the specified color) Only the above package content, other products are not included. Note: Light reflection and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.