User's Manual

HF-LPT120A Low Power WiFi Module User Manual
Shanghai High-Flying Electronics Technology Co., Ltd(www.hi-flying.com) -10-
1.2. Hardware Introduction
1.2.1. Pins Definition
Figure 1. HF-LPT120A Pins Map
Table 2 HF-LPT120A Pins Definition
Pin Description Net Name Signal
Type
Comments
1 Ground GND Power
2 +3.3V Power DVDD Power 3.3V@300m
A
3Restore
Configuration
nReload I/O,PU Can be configured a s GPIO_2
Detailed functions see <Notes>
4 Module Reset EXT_RESETn I,PU “Low” effective r eset input.
5 UART0 UART0_RX I GPIO_19
6 UART0 UART0_TX O,PU GPIO_20
7 GPIO_5 GPIO_5 I/O GPIO_5,UART1_TXD
UART1 Debug Output
8 GPIO_6 GPIO_6 I/O GPIO_6, UART1_RXD
UART1 Debug Input
9 GPIO_3 nReady I/O Can be configured as nReady,GPIO
10 GPIO_15 nLink I/O Can be configured as nLink,GPIO
Detailed functions see <Notes>
I—Input, O—Output,PU—Internal Pullup Resistor； I/O: Digital I/O；Power—Power
<Notes>
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.