HF-A21 Embedded WiFi Module User Manual HF-A21 Embedded WiFi Module User Manual V1.0 Overview of Characteristic Support IEEE802.
HF-A21 Embedded WiFi Module User Manual TABLE OF CONTENTS 1. PRODUCT OVERVIEW ............................................................................................................... 6 1.1. General Specification ............................................................................................................. 6 1.2. Hardware Introduction ............................................................................................................ 7 1.2.1. Pins Definition ..................
HF-A21 Embedded WiFi Module User Manual LIST OF FIGURES Figure 1. Figure 2. Figure 3. Figure 4. Figure 5. Figure 6. Figure 7. Figure 8. Figure 9. HF-A21 Appearance .............................................................................................................. 7 HF-A21 Pins Map .................................................................................................................. 7 HF-A21 Mechanical Dimension ........................................................................
HF-A21 Embedded WiFi Module User Manual HISTORY Ed. V1.0 Created on 5-09-2016. Shanghai High-Flying Electronics Technology Co., Ltd www.hi-flying.
HF-A21 Embedded WiFi Module User Manual 1. PRODUCT OVERVIEW 1.1. General Specification Table 1 Class Wireless Parameters HF-A21 Module Technical Specifications Item Parameters Certification FCC/CE Wireless standard Frequency range 802.11 b/g/n 2.412GHz-2.462GHz 802.11b: +20 dBm (Max.) 802.11g: +18 dBm (Max.) 802.11n: +15 dBm (Max.
HF-A21 Embedded WiFi Module User Manual 1.2. Hardware Introduction Figure 1. 1.2.1. Pins Definition Figure 2. Table 2 Pin 1 2 3 HF-A21 Appearance HF-A21 Pins Map HF-A21 Pins Definition Description Ground VCC UART Data Transmit Name GND 3.
HF-A21 Embedded WiFi Module User Manual Indicate the module status of power on process GPIO Restore configuration GPIO nReady O GPIO35 nReload GPIO34 I/O I I/O 11 Ethernet Interface PHY_RX+ I 12 13 14 Ethernet Interface Ethernet Interface Ethernet Interface PHY_RXPHY_TX+ PHY_TX- I O O 9 10 “0” or “Palmodic Signal” - Finish module boot up process; “1” - Module boot up not finish. Can be configured as GPIO.
HF-A21 Embedded WiFi Module User Manual 1.2.2. Mechanical Size HF-A21 modules physical size as follows: Figure 3. HF-A21 Mechanical Dimension 1.2.3. On-board Chip Antenna HF-A11 module support internal ob-board chip antenna option.
HF-A21 Embedded WiFi Module User Manual High-Flying suggest HF-A11 module better locate in following region at customer board, which to reduce the effect to antenna and wireless signal, and better consult High-Flying technical people when you structure your module placement and PCB layout. Figure 5. Suggested Module Placement Region 1.2.4. External Antenna HF-A11 modules support internal antenna and external antenna option for user dedicated application.
HF-A21 Embedded WiFi Module User Manual Figure 6. HF-A21 Evaluation Kit The external interface description for evaluation kit as follows: Table 4 Function External Interface LED Button HF-A21 Evaluation Kit Interface Description Name DC jack Description 5~18V power input connector 3-Pin 3-Pin RS485 interface(Reserved) DB9 Male serial jack of 9-pin,and used to connect to PC RJ-45 Module Power (Red) TXD RXD Ready Link Reset Reload 100M Eth Interface 2x7 2mm DIP connector 3.
HF-A21 Embedded WiFi Module User Manual 1.2.6. Order Information Base on customer detailed requirement, HF-A21 series modules provide different variants and physical type for detailed application. Figure 7. HF-A21 Order Information 1.3. Hardware Reference Design 1.3.1. Hardware Typical Application Figure 8. HF-A11 Hardware Typical Application Notes: nRST- Module hardware reset signal. Input. Logics “0” effective. There is 100K Ohm pull-up resister internal.
HF-A21 Embedded WiFi Module User Manual nReady- Module boot up ready signal. Output. Logics “0” effective. There is 4.7K Ohm pull-up resister internal. The module will output “0” “or “Palmodic Signal” after normal boot up. This signal used to judge if module finish boot up and ready for application or working at normal mode. nLink- Module WIFI connection indication. Output. There is 4.7K Ohm pull-up resister internal.
HF-A21 Embedded WiFi Module User Manual 2. PACKAGE INFORMATION 5.1 Shipping Information TRAY Size: 370*270*40 mm BOX Size: 370*270*160 mm(inside) Figure 9. Shipping Information Note: 1 tray = 100pcs 1 box = 4 trays = 4 * 100 pcs = 400pcs Shanghai High-Flying Electronics Technology Co., Ltd www.hi-flying.
HF-A21 Embedded WiFi Module User Manual APPENDIX A: EVB REFERENCE DESIGN Shanghai High-Flying Electronics Technology Co., Ltd www.hi-flying.
HF-A21 Embedded WiFi Module User Manual APPENDIX B: CONTACT INFORMATION -----------------------------------------------------------------------------------------------------------Address: Room 1002,Building 1,No.3000,Longdong Avenue,Pudong New Area,Shanghai,China, 201203 Web: www.hi-flying.com Service Online: 400-189-3108 Mail Contact: sales@hi-flying.
HF-A21 Embedded WiFi Module User Manual FCC STATEMENT 1. This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) This device must accept any interference received, including interference that may cause undesired operation. Warning: Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.
HF-A21 Embedded WiFi Module User Manual FCC INFORMATION (additional) OEM INTEGRATION INSTRUCTIONS: This device is intended only for OEM integrators under the following conditions: The module must be installed in the host equipment such that 20 cm is maintained between the antenna and users, and the transmitter module may not be co-located with any other transmitter or antenna. The module shall be only used with the internal antenna(s) that has been originally tested and certified with this module.
HF-A21 Embedded WiFi Module User Manual END OF DOCUMENT © Copyright High-Flying, May, 2011 The information disclosed herein is proprietary to High-Flying and is not to be used by or disclosed to unauthorized persons without the written consent of High-Flying. The recipient of this document shall respect the security status of the information. The master of this document is stored on an electronic database and is “write-protected” and may be altered only by authorized persons at High-Flying.