User's Manual

HF-BL100-CU Low Energy Bluetooh（BLE 4.0）Module User Manual
Shanghai High Flying Electronics Technology Co., Ltd www.hi-flying.com - 24
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Figure 8. ”AT:HELP” list All command
4.2.1. Command Format
AT： command based on ASCII code, format as below:
 Format description
 < >: mean the part must include
 [ ]: mean optional part
 Command message
AT：<CMD>[op][para-1,para-2,para-3,para-4…]<CR><LF>
 AT：：command message prefix
 CMD：command character string
 [op] ： command operate character, can be parameter setting or query
 “-” ： means parameter setting
 “？” ：means query
 [para-n] ： parameter setting code, if query, it is not required.
 <CR>：end ，ASCII code 0x0d；
 <LF>: return，ASCII code 0x0a
<descritpion>：