HF-LPT170 Low Power Wi-Fi BLE Module User Manual

PU—InternalResistor Pull Up； 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 to download software tools for customer batch configuration and upgrade firmware during mass production.

2. After module is powered up, short press this button (0.2s<“Low” <1.5s) and loose to make the module go into SmartBLELinkconfig mode, waiting for APP to set routerSSIDandpassword, config module connect to router. Recommend to use SmartBleLink BLE method config, may use AT+SMARTCONFIG to choose other config mode(SmartLink V8 and SmartAPLink).
   See Appendix to download SmartBLELink, SmartLinkV8andSmartAPLinkAPP

3. After module is powered up, long press this button ( “Low” >4s ) and loose to make the module recover to factory setting.

High-Flying strongly suggest customer fan out this pin to connector or button for “Manufacture” upgrade or “SmartLink” application.

nReady Pin (LED) function(Low effective):

1. OS initial finished indicator. Only after this pin output low, can the UART function be used.

Used

1. At wireless firmware and config upgrade mode , this LED used to indicate configure and upgrade status.
2. At “SmartLink” config mode, this LED isused to indicate APP to finish setting.
3. At normal mode, it’s Wi-Fi link status indicator. Output Low when STA mode connect to router AP or other STA connect to it when in AP mode.

High-Flying strongly suggest customer fan out this pin to LED.

UART1 Debug ：

1. Is used for debug log or firmware program, baud rate 921600.

1.2.2. Electrical Characteristics

1.2.3. HF-LPT170Mechanical Size

HF-LPT170 modules physical size （Unit: mm） as follows:

1.2.4. PCB Antenna
HF modules support internal PCB antenna option. When customer select internal antenna, you shall comply with following antenna design rules and module location suggestions:

• For customer PCB, module antenna area can’t put componet or paste GND net;(See the following red arrow area)
• Antenna must away from metal or high components at least 10mm;
• Antenna can’t be shielded by any meal enclosure; All cover, include plastic, shall away from antenna at least 10mm;

High-Flying suggest 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.

1.2.5. Evaluation Kit
High-Flying provides the EVK to promote user to familiar the product and develop the detailed application. The evaluation kit shown as below, user can connect to module with the RS-232 UART, USB (Internal USB to UARTconvetor) or Wireless interface to configure the parameters, manage the module or do the some functional tests.

Notes: User need download USB to UART port driver from High-Flying web or contact with technical support people for more detail.

The external interface description for evaluation kit as follows:

1.2.6. Order Information
Base on customer detailed requirement, HF-LP170 modules provide different variants and physical type for detailed application.

1.2.7. Hardware Typical Application

Notes:
nReset- Module hardware reset signal. Input. Logics “0” effective.
There is pull-up resister internal and no external pull-up required. When module power up or some issue happened, MCU need assert nRST signal “0” at least 10ms, then set” 1” to keep module fully reset.

nLink- Module WIFI connection status indication. Output.

(This pin is recommend to connect to LED, indicate status when the module in wireless upgrade mode)
When module connects to AP (AP associated), this pin will output “0”. This signal used to judge if module already at WiFi connection status. Thers is pull-up resister internal and no external pull-up required. IfnLink function not required, can leave this pin open.

nReady- Module boot up ready signal. Output. Logics “0” effective.
The module will output “0” after normal boot up. This signal used to judge if module finish boot up and ready for application or working at normal mode. If nReady function not required, can leave this pin open.

nReload- Module restore to factory default configuration. Input. Logics “0” effective.
(This pin is recommend to connect to button, is used to enter wireless upgrade mode)
User can de-assert nReload signal “0” more than 4s through button or MCU pin, then release, module will restore to factory default configuration and re- start boot up process.. If nReload function not required, can leave this pin open.

UART0_TXD/RXD- UART port data transmit and receive signal.

APPENDIX D: CONTACT INFORMATION

Address: Room 1002,Building 1,No.3000,Longdong Avenue, Pudong New
Area,Shanghai,China,201203
Web: www.hi-flying.com
Service Online:400-189-3108/18616078755
Sales Contact: sales@hi-flying.com ———————————————————————————————————–
For more information about High-Flying modules, applications, and solutions, please visit our web site http://www.hi-flying.com/en/

© 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. Viewing of the master document electronically on electronic database ensures access to the current issue. Any other copies must be regarded as uncontrolled copies.

OEM/Integrators Installation Manual

1. List of applicable FCC rules
This module has been tested and found to comply with part 15.247 requirements for Modular Approval.

2. Summarize the specific operational use conditions
This module can be used in IoT devices. The input voltage to the module should be nominally 3.3VDC and the ambient temperature of the module should not exceed 85℃. HF-LPT170 has one PCB antenna with max antenna gain 2.0dBi. If the antenna needs to be changed, the certification should be re-applied.

3. Limited module procedures
NA

4. NA

5. RF exposure considerations
This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment .This equipment should be installed and operated with minimum distance 20cm between the radiator& your body. If the device built into a host as a portable usage, the additional RF exposure evaluation may be required as specified by§ 2.1093.

6. Antennas

Antenna type: PCB antenna

2.4GHz band Peak Gain: 2.0dBi

7. Label and compliance information
When the module is installed in the host device, the FCC ID label must be visible through a window on the final device or it must be visible when an access panel, door or cover is easily re-moved. If not, a second label must be placed on the outside of the final device that contains the following text: “Contains FCC ID: 2ACSVHF-LPT170” The FCC ID can be used only when all FCC ID compliance requirements are met.

8. Information on test modes and additional testing requirements

a) The modular transmitter has been fully tested by the module grantee on the required number of channels, modulation types, and modes, it should not be necessary for the host installer to re-test all the available transmitter modes or settings. It is recommended that the host product manufacturer, installing the modular transmitter,perform some investigative measurements to confirm that the resulting composite system does not exceed the spurious emissions limits or band edge limits (e.g., where a different antenna may be causing additional emissions).

b) The testing should check for emissions that may occur due to the intermixing of emissions with the other transmitters, digital circuitry, or due to physical properties of the host product (enclosure). This investigation is especially important when integrating multiple modular transmitters where the certification is based on testing each of them in a stand-alone configuration. It is important to note that host product manufacturers should not assume that because the modular transmitter is certified that they do not
have any responsibility for final product compliance.

c) If the investigation indicates a compliance concern the host product manufacturer is obligated to mitigate the issue. Host products using a modular transmitter are subject to all the applicable individual technical rules as well as to the general conditions of operation in Sections 15.5, 15.15, and 15.29 to not cause interference. The operator of the host product will be obligated to stop operating the device until the interference have been corrected , WIFI and Bluetooth testing using QRCT in FTM mode.

9. Additional testing, Part 15 Subpart B disclaimer
The final host / module combination need to be evaluated against the FCC Part 15B criteria for unintentional radiators in order to be properly authorized for operation as a Part 15 digital device.
The host integrator installing this module into their product must ensure that the final composite product complies with the FCC requirements by a technical assessment or evaluation to the FCC rules, including the transmitter operation and should refer to guidance in KDB 996369.

For host products with certified modular transmitter, the frequency range of investigation of the composite system is specified by rule in Sections 15.33(a)(1) through (a)(3), or the range applicable to the digital device, as shown in Section 15.33(b)(1), whichever is the higher frequency range of investigation

When testing the host product, all the transmitters must be operating.The transmitters can be enabled by using publicly-available drivers and turned on, so the transmitters are active. In certain conditions it might be appropriate to use a technology-specific call box (test set) where accessory devices or drivers are not available. When testing for emissions from the unintentional radiator, the transmitter shall be placed in the receive mode or idle mode, if possible. If receive mode only is not possible then, the radio shall be passive (preferred) and/or active scanning. In these cases, this would need to enable activity on the communication BUS (i.e., PCIe, SDIO, USB) to ensure the unintentional radiator circuitry is enabled. Testing laboratories may need to add attenuation or filters depending on the signal strength of any active beacons (if applicable) from the enabled radio(s). See ANSI C63.4,

ANSI C63.10 and ANSI C63.26 for further general testing details.
The product under test is set into a link/association with a partnering WLAN device, as per the normal intended use of the product. To ease testing, the product under test is set to transmit at a high duty cycle, such as by sending a file or streaming some media content.

FCC Statement:
Any Changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment.

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,
(2) This device must accept any interference received, including interference that may cause undesired operation.

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