Introduction - If you have any usage issues, please Google them yourself
Yellow network light (LED0) and green network lamp (LED1) Qi Liang initial state. UART up bit machine to send message After initialization: Initial Done! Press the KEY to continue ~ Press then press the key, the system starts. After starting the system will be in four states: State 1: the default, or press DOWN after startup. At this time only the information sent by the host computer is returned unchanged. LED0 together with LED1 off in this state. Status 2: Press LEFT start, then all information except ' a' ~ ' z' outside as return, ' a' ~ ' z' is converted to return after ' A' ~ ' Z' . LED1 lights that state. State 3: After pressing RIGHT start, then all of the information in addition to ' A' ~ ' Z' outside as it returns, ' A' ~ ' Z' is converted to return after ' a' ~ ' z' . LED0 bright that state. State 4: After pressing the UP starts, at which time the letters in lowercase characters converted to up