User Manual
HF-LPB200 Low Power WiFi Module User Manual
Shanghai High-Flying Electronics Technology Co., Ltd
www.hi-flying.com
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Table 7 Power Consumption with Different Power Save Mode
WiFi Mode
Condition
Average Current
Peak Current
Deep Sleep
Wi-Fi/MCU Shutdown
< 100uA
< 100uA
Wi-Fi Wakeup
MCU Shundown
~10mA
< 200mA
Normal
(Active/Sleep)
WiFi ON - AP Associated
DTIM = 100ms, No Data
~21mA
< 250mA
Normal
(Active/Sleep)
WiFi ON - AP No-Assoiated
DTIM = 100ms, No Data
~27mA
< 250mA
Normal
(Active/Sleep)
WiFi ON – AP Connected
DTIM = 100ms, Date:1KB/s
~50mA
< 250mA
In addition, for Wi-Fi Wakeup/Deep Sleep mode, module provides three wakes up options, user can
select one or whole as the module wake up option. Refer to AT Instruction (Power Management
Instruction Set) for more detailed setting.
Pin (Sleep_RQ) Wake Up
Timeout Wake Up
Wi-Fi Wake Up
Pin Wake Up Option allows an external microcontroller to determine when HF-LPB200 should sleep
and when it should wake by controlling the “Sleep_RQ” and “Sleep_ON” pin. at the Wi-Fi wakeup
mode/Deep Sleep mode, user can de-assert this pin low “0”, after 1‟s assert to high ”1” to put the
module to wake up the module. If user doesn't use pin sleep function, can leave this pin open.
Timeout Wake Up Option allows the sleep timeout period to be configured through the use of AT
Instruction.In this option, the module will exit sleep based on the <Timeout> AT Instruction parameters
Wi-Fi Wake Up Option only applicatable for Wi-Fi Wakeup mode, which provide the flexibility for
network server or user to control and manage the Wi-Fi device to go into power save mode, but still
keep the Wi-Fi link associated, Refer to AT Instruction to know more about the WiFi wakeup command.
3.7. Parameters Configuration
HF-LPB200 module supports two methods to configuration parameters: Web Accessing and
AT+instruction set.
Web accessing means users can configure parameters through Web browser. When HF-LPB200
module connected to wireless network, parameters configuration is done on a PC connected to the
same wireless network.
AT+instruction set configuration means user configure parameters through serial interface command.
Refer to “AT+instruction set” chapter for more detail.
3.8. Firmware Update
HF-LPB200 module supports two on-line upgrade methods:
Webpage Wi-Fi Upgrade
Remote Upgrade