For anyone trying to talk to this from OS X, download the CP210x USB to UART Bridge VCP Driver
http://www.silabs.com/Support%20Documents/Software/Mac_OSX_VCP_Driver.zip
and use a terminal program like CoolTerm that can transmit hex strings.
For anyone trying to talk to this from OS X, download the CP210x USB to UART Bridge VCP Driver
http://www.silabs.com/Support%20Documents/Software/Mac_OSX_VCP_Driver.zip
and use a terminal program like CoolTerm that can transmit hex strings.