User's Manual

HF-A21-SMT Embedded WiFi Module User Manual
Shanghai High-Flying Electronics Technology Co., Ltd
www.hi-flying.com
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1.2.4. Evaluation Kit
High-Flying provides the evaluation kit to promote user to familiar the product and develop the
detailed application. The evaluation kit shown as below, user can connect to HF-A21-SMT
module with the RS-232 UART port, 100M Eth port or Wireless port to configure the parameters,
manage the module or do the some functional tests.
Figure 6. HF-A21-SMT Evaluation Kit
Table 3 HF-A21-SMT Evaluation Kit Interface Description
Function
Name Description
External
Interface
DC-Jack
5V@1A Power input: DC-Jack
DC 5V 5V@1A Power input: 2-Pin
COM1 UART DB9, UART, Connect PC serial port
COM2 UART1 DB9, UART1, Connect PC serial port
RJ-45 100M Ethernet Interface
USB Host Seserved USB (Type A)
DIP-16 Extended 16-pin functional interface
LED
Power (Red) 3.3V Power Indicator
nLink nLink/GPIO-Pin 14 Indicator
nReady nReady/GPIO-Pin 16 Indicator
Button
Reset
Used to reset the module.
Reload Module restore to factory default configuration.