User's Manual

HF-LPT220 Low Power WiFi Module User Manual
Shanghai High-Flying Electronics Technology Co., Ltd(www.hi-flying.com) - 14 -
<Notes>
When bootup, module PIN4/5/9 must be high.
I InputO Output
PUInternal 4.7K Resistor Pull UpPDInternal Pull Down I/O: Digital I/O Power
Power Supply
nReload Pin (Button) function
1. When this pin is set to “low” during module boot up, the module will enter wireless
firmware and config upgrade mode. This mode is used for customer manufacture.
(See Appendix C to download software tools for customer batch configuration and
upgrade firmware during mass production)
2. After module is powered up, short press this button ( “Low < 2s ) to make the
module go into “Smart Link config mode, waiting for APP to set password and
other information. (See Appendix C to download SmartLink APP)
3. After module is powered up, long press this button ( “Low >= 4s ) to make the
module recover to factory setting.
High-Flying strongly suggest customer fan out this pin to connector or button for
Manufacture” and “ Smart Link” application.
nLink Pin (LED) function
1. At wireless firmware and config upgrade mode , this LED used to indicate configure
and upgrade status.
2. At “Smart Link “ config mode, this LED used to indicate APP to finish setting.
3. At normal mode, it’s Wi-Fi link status indicator
High-Flying strongly suggest customer fan out this pin to LED.
1.2.2. Electrical Characteristics
Absolute Maximum Ratings:
Parameter Condition Min. Typ. Max. Unit
Storage temperature range -40 125 °C
Maximum soldering temperature IPC/JEDEC J-STD-020 260 °C
Supply voltage 0 3.6 V
Voltage on any I/O pin 0 3.6 V
ESD (Human Body Model HBM) TAMB=25°C 2.5 KV
ESD (MM) TAMB=25°C 0.25 KV
Power Supply & Power Consumption:
Parameter Condition Min. Typ. Max. Unit
Operating Supply voltage 2.95 3.3 3.6 V
Supply current, peak Continuous Tx 280 mA
Supply current, IEEE PS DTIM=100ms 30 mA