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 - 59
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module, need to pull-down WAKEUP pin, after sending finished, pull-up WAKEUP to lower the
power.
There must be a latency from WAKEUP pull-down to MCU sending data, the time is no less 拉低
than 2ms。
Stop Mode Wakeup：WAKEUP pull-down, AT command send out Stop command, when
system enter into STOP mode, can be wakeup through pull-up WAKEUP.
UART_TX/RX------UART data send/receive signal。
Manufacture（RELD）------restore factory setting via hardware method: keep high level at
least 5 second when power on or restore