Telit Wireless Solutions WL865E4-P User manual

WL865E4-P EVB
USER GUIDE
1VV0301594 Rev. 0 –2019-04-02

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SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE
NOTICE
While reasonable efforts have been made to assure the accuracy of this document, Telit
assumes no liability resulting from any inaccuracies or omissions in this document, or from use
of the information obtained herein. The information in this document has been carefully
checked and is believed to be reliable. However, no responsibility is assumed for inaccuracies
or omissions. Telit reserves the right to make changes to any products described herein and
reserves the right to revise this document and to make changes from time to time in content
hereof with no obligation to notify any person of revisions or changes. Telit does not assume
any liability arising out of the application or use of any product, software, or circuit described
herein; neither does it convey license under its patent rights or the rights of others.
It is possible that this publication may contain references to, or information about Telit products
(machines and programs), programming, or services that are not announced in your country.
Such references or information must not be construed to mean that Telit intends to announce
such Telit products, programming, or services in your country.
COPYRIGHTS
This instruction manual and the Telit products described in this instruction manual may be,
include or describe copyrighted Telit material, such as computer programs stored in
semiconductor memories or other media. Laws in the Italy and other countries preserve for
Telit and its licensors certain exclusive rights for copyrighted material, including the exclusive
right to copy, reproduce in any form, distribute and make derivative works of the copyrighted
material. Accordingly, any copyrighted material of Telit and its licensors contained herein or in
the Telit products described in this instruction manual may not be copied, reproduced,
distributed, merged or modified in any manner without the express written permission of Telit.
Furthermore, the purchase of Telit products shall not be deemed to grant either directly or by
implication, estoppel, or otherwise, any license under the copyrights, patents or patent
applications of Telit, as arises by operation of law in the sale of a product.
COMPUTER SOFTWARE COPYRIGHTS
The Telit and 3rd Party supplied Software (SW) products described in this instruction manual
may include copyrighted Telit and other 3rd Party supplied computer programs stored in
semiconductor memories or other media. Laws in the Italy and other countries preserve for
Telit and other 3rd Party supplied SW certain exclusive rights for copyrighted computer
programs, including the exclusive right to copy or reproduce in any form the copyrighted
computer program. Accordingly, any copyrighted Telit or other 3rd Party supplied SW
computer programs contained in the Telit products described in this instruction manual may
not be copied (reverse engineered) or reproduced in any manner without the express written
permission of Telit or the 3rd Party SW supplier. Furthermore, the purchase of Telit products
shall not be deemed to grant either directly or by implication, estoppel, or otherwise, any
license under the copyrights, patents or patent applications of Telit or other 3rd Party supplied
SW, except for the normal non-exclusive, royalty free license to use that arises by operation
of law in the sale of a product.

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USAGE AND DISCLOSURE RESTRICTIONS
I. License Agreements
The software described in this document is the property of Telit and its licensors. It is furnished
by express license agreement only and may be used only in accordance with the terms of such
an agreement.
II. Copyrighted Materials
Software and documentation are copyrighted materials. Making unauthorized copies is
prohibited by law. No part of the software or documentation may be reproduced, transmitted,
transcribed, stored in a retrieval system, ortranslated into anylanguage or computer language,
in any form or by any means, without prior written permission of Telit.
III. High Risk Materials
Components, units, or third-party products used in the product described herein are NOTfault-
tolerant and are NOT designed, manufactured, or intended for use as on-line control
equipment in the following hazardous environments requiring fail-safe controls: the operation
of Nuclear Facilities, Aircraft Navigation or Aircraft Communication Systems, Air Traffic
Control, Life Support, or Weapons Systems (High Risk Activities"). Telit and its supplier(s)
specifically disclaim any expressed or implied warranty of fitness for such High Risk Activities.
IV. Trademarks
TELIT and the Stylized T Logo are registered in Trademark Office. All other product or service
names are the property of their respective owners.
V. Third Party Rights
The software may include Third Party Right software. In this case you agree to comply with all
terms and conditions imposed on you in respect of such separate software. In addition to Third
Party Terms, the disclaimer of warranty and limitation of liability provisions in this License shall
apply to the Third Party Right software.
TELIT HEREBY DISCLAIMS ANY AND ALL WARRANTIES EXPRESS OR IMPLIED FROM
ANY THIRD PARTIES REGARDING ANY SEPARATE FILES, ANY THIRD PARTY
MATERIALS INCLUDED IN THE SOFTWARE, ANY THIRD PARTY MATERIALS FROM
WHICH THE SOFTWARE IS DERIVED (COLLECTIVELY “OTHER CODE”), AND THE USE
OF ANY OR ALL THE OTHER CODE IN CONNECTION WITH THE SOFTWARE,
INCLUDING (WITHOUT LIMITATION) ANY WARRANTIES OF SATISFACTORY QUALITY
OR FITNESS FOR A PARTICULAR PURPOSE.
NO THIRD PARTY LICENSORS OF OTHER CODE SHALL HAVE ANY LIABILITY FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED
ANDWHETHER MADE UNDER CONTRACT, TORT OR OTHER LEGAL THEORY, ARISING
IN ANY WAY OUT OF THE USE OR DISTRIBUTION OF THE OTHER CODE OR THE
EXERCISE OF ANY RIGHTS GRANTED UNDER EITHER OR BOTH THIS LICENSE AND
THE LEGAL TERMS APPLICABLE TO ANY SEPARATE FILES, EVEN IF ADVISED OF THE
POSSIBILITY OF SUCH DAMAGES.

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APPLICABILITY TABLE
PRODUCTS
WL865E4-P

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CONTENTS
NOTICE ..................................................................................................... 2
COPYRIGHTS................................................................................................ 2
COMPUTER SOFTWARE COPYRIGHTS...................................................... 2
USAGE AND DISCLOSURE RESTRICTIONS............................................... 3
APPLICABILITY TABLE................................................................................ 4
CONTENTS.................................................................................................... 5
1. INTRODUCTION.......................................................................... 6
Scope........................................................................................... 6
Audience....................................................................................... 6
Contact and Support Information .................................................. 6
Text Conventions.......................................................................... 7
Related Documents...................................................................... 7
2. OVERVIEW.................................................................................. 8
3. WL865E4-P INTERFACE DESCRIPTION.................................... 9
WL865E4-P Development Kit ....................................................... 9
Evaluation Board description ...................................................... 10
Top Side Item Description........................................................... 11
Bottom Side Item Description...................................................... 17
4. WL865E4-P BASIC OPERATIONS............................................ 19
General Information on Power Supply ........................................ 19
Program the WL865E4-P module ............................................... 19
Run the WL865E4-P Module ...................................................... 20
5. EVB PRELIMINARY VERSION.................................................. 23
6. SCHEMATICS............................................................................ 26

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1. INTRODUCTION
Scope
The aim of this document is the handling description of the EVB (EValuation Board) Interface
for the product WL865E4-P WIFI/BLE module.
Audience
This document is intended for Telit customers, especially system integrators, about to
implement their applications using Telit module.
Contact and Support Information
For general contact, technical support services, technical questions and report documentation
errors contact Telit Technical Support at:
•[e-mail]
Alternatively, use:
https://www.telit.com/contact-us/
For detailed information about where you can buy the Telit modules or for recommendations
on accessories and components visit:
https://www.telit.com/
Our aim is to make this guide as helpful as possible. Keep us informed of your comments and
suggestions for improvements.
Telit appreciates feedback from the users of our information.

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Text Conventions
Danger –This information MUST be followed or catastrophic equipment
failure or bodily injury may occur.
Caution orWarning –Alerts the user to important points about integrating
the module, if these points are not followed, the module and end user
equipment may fail or malfunction.
Tip or Information –Provides advice and suggestions that may be useful
when integrating the module.
All dates are in ISO 8601 format, i.e. YYYY-MM-DD.
Related Documents
•Telit WL865E4-P User Guide 1VV0301580
•WL865E4-P AT Command Reference Guide

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2. OVERVIEW
The Telit EVB is arapid IoT Development Kit, in other words a systemthat reduces the duration
of IoT prototyping cycles from a matter of weeks or months to mere hours - all by capitalizing
on the combination of embedded IoT software and hardware. The system was designed to
provide a complete development environment to the user and intended to be used with Telit
WL865E4-P module and Arduino Uno Rev3 board.
NOTE:
The combination of the EVB and the Arduino Uno Rev3 shall be done
according to the configuration described in this manual.
The information presented in this document is believed to be accurate and reliable. However,
no responsibility is assumed by Telit Communication S.p.A. for its use. No license is granted
by implication or otherwise under any patent rights of Telit Communication S.p.A. other than
for circuitry embodied in Telit products. This document is subject to change without notice

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3. WL865E4-P INTERFACE DESCRIPTION
WL865E4-P Development Kit
In Figure 3-1 the WL865E4-P EVB is shown, while in Table 3-1 the WL865E4-P kitting parts
are listed.
Figure 3-1: WL865E4-P EVB
Description
Quantity
EVB Board
1
WIFI/BLE Antenna
2
Micro USB cable
1
Table 3-1: WL865E4-P kitting parts

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Evaluation Board description
In Figure 3-2 and Figure 3-3 the Top and Bottom side view of the EVB are shown. The items
indicated are described in Section 3.3 and 3.4 respectively for the top and the bottom side.
Figure 3-2 Top Side View
Figure 3-3 –Bottom Side View

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Top Side Item Description
1) WIFI Antenna connector:
Connect here the Wireless LAN Dual Band Antenna T-AT9552 to use the WIFI capabilities of
the WL865E4-P
2) BLE Antenna connector:
Connect here the Wireless LAN Dual Band Antenna T-AT9552 to use the BLE capabilities of
the WL865E4-P
3) WL654E4-P module:
This is the Telit WL865E4-P WIFI/BLE module.
4) PL602: Interrupts
The Jumper PL602 (Figure 3-4) allows to manage the sensor’s interrupts manually by means
of the proper jumper configuration.
Figure 3-4: PL602 with sensor interrupts
5) Sensors
The WL865E4-P interface is equipped with different kind of sensors as shown in Figure 3-5.
Figure 3-5: EVB Sensors

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The sensors are controlled by I2C either from the WIFI/BLE Module using AppZone or with
Arduino. The sensors are:
•3D Accelerometer and Gyroscope, LSM6DS3TR, Slave Write Address = 0xD4
•Humidity and Temperature, HDC2010, Slave Write Address = 0x80
•Pressure, LPS25HTR, Slave Write Address = 0xB8
•Ambient Light, MAX44009, Slave Write Address = 0x94
6) JTAG Connector
The JTAG comes out with a standard J-Link 20 pins connector (PL607) in our board, the
pin description is shown in Figure 3-6.
Figure 3-6: JTAG
7) Miscellaneous PL609
The PL609, named miscellaneous (Figure 3-7), gives you the possibility to manually handle
different signals, jumpering them to VIO or GND with a proper connection to the header or just
to monitoring them through a scope.
Figure 3-7: Header with miscellaneous signals

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8) Debug-Boot PL603
The SDIO2 and Debug Mode header can be used to force the WL865 in Debug or in Boot
mode by means of proper jumper configuration. The default jumper configuration is shown in
Figure 3-8.
Figure 3-8: Debug and Boot configuration Header
The jumper configuration of PL603 allows to use the WL865E4-P in different modes:
•BOOT MODE: (USB only) PL603 2-4, is used for firmware download, it should
be set in contemporary with Diagnostic Mode, PL603 1-3.
•DIAGNOSTIC MODE: (USB only) PL603 1-3, is used for RF tests and need a
different firmware. The BOOT mode should be disabled PL603 4-6 or
unplugged.
•APPLICATION MODE: (USB does not work) It is a USB to UART0. For running
the applicationsoftware, do not place any Jumperon PL603 or place it at PL603
3-5 and PL603 4-6.
In application mode the second USB to UART1 is also available.
9), 10), 11) Switches and PL606
The EVB has three SMD push buttons as shown in Figure 3-9.
Figure 3-9: EVB push buttons
PB1 is connected only to PL606-1 to be externally wired to any desired GPIO pin on any other
connector’s header.
PB2 is connected to PL606-2 and goes directly to the WL865E4-P RESET#, an active low HW
Reset pin, press and release it to unconditionally reset the module.
PB3 is connected to the PL606-3 and goes straight to the GPIO10 of the WL865E4-P module,
use it as an external input for GPIO10.

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12), 13) UART0 and UART1 (preliminary EVBs could not have the micro USB
connector for UART1)
The WL865E4-P interface has two UART ports (Figure 3-10): one 4-wires high speed UART0
and one 2-wires UART1 port. Both ports have an independent FTDI chipset to translate the
USB to UART and interface with correct VDD_VIO levels
Figure 3-10: UART ports
For both ports, the UART signals go directly to the module, but they are also sent to PL601 on
the top side and PL404 on the bottom side, to make possible the communication between the
WL865E4-P and Arduino Uno.
As explained in point 8, the UART0 and UART1 are available only in application mode (no
jumpers plugged on PL603).
14), 15) 16) On/Off Switch, LEDS and Power Configuration Jumpers (PL301 and
PL302)
The slide switch located on the left side of Figure 3-11, allows to power up the module: in ON
position it enables all 3 VDD power sources of the module, VDD_WLAN, VDD_BLE and
VDD_IO, no matter its value. 3V3 is to be considered the default.
The WL865E4-P can have different VIO voltage value with respect to core. This is selected on
Jumper headers PL302 and PL301. If no jumpers are plugged into these headers the only ON
position of the switch is not enough to correctly powering the module.
Figure 3-11: Switch and Power Headers
The Jumper position and the description is detailed in Figure 3-12

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Figure 3-12: Jumper configuration for power settings
Basically, the jumper PL302, is used to separate the main power module’s supply from the rest
of the EVB to allow current consumption tests.
PL302 1-3 and 3-5, allows to choose the voltage for the module’s VIO port, 1V8 (1-3) or 3V3
(3-5).
PL302, 2-4 and 4-6, allow to supply other EVB components like voltage translators, MEMS
sensors and external memory, with the same voltage level selected in PL302 1-3 and 3-5.
If jumper PL302 if placed at 3-5, the second PL302 jumper should be place at 4-6, default
configuration.
The jumper on PL301 3-5 allow to send the VDD_BLE power supply to the VUSB pad of the
WL865E4-P while PL301 4-6 connects internally generated 3V3 to the Module RF and Core
power.
The PL301 can be used also as an insertion point to measure current consumption of the
module or for external power supply use.
The WL865E4-P EVB has three different LED’s on the left part shown in Figure 3-11, each
LED indicates a specific status:
LED Red ON–3V3 voltage ON.
LED Green ON–Bluetooth Active
LED Yellow ON–WIFI Active
17), 18) 19) Other Connectors
Other connectors that can be used to wire or monitoring other signals that could be needed
for development purposes are:
PL601 –UART connector (Figure 3-13): pins 8 and 10 correspond to UART1 while pins 3, 7,
9 and 11 to UART0.

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Figure 3-13: UART header
As shown in Figure 3-14, the PL601 has been routed to fit the FTDI TTL-232 cable.
Figure 3-14: FTDI TTL-232 cable.
Do NOT use it when Arduino is Plugged
PL604 - SDIO connector. Please, see Figure 3-15 for pin assignment.
Figure 3-15: SDIO header

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PL605 –I2C, I2S and SPI Master connector. Please, see Figure 3-16 for pin assignment.
Figure 3-16: I2C, I2S and SPI header
Bottom Side Item Description
20), 21) Battery Holder and Battery connector
On the bottom side (Figure 3-17) a battery holder that can be manually mounted, suitable to fit
2xAA 1V5 batteries and an SMD connector that powers up the whole EVB by battery were
placed.
Without the battery holder the board can be supplied by means of a standard lithium battery
3.6V plugged into the SMD connector.
Figure 3-17: EVB Bottom side view
23) Arduino Uno Rev 3 Connector
The other connectors on the bottom are intended to plug Arduino Uno Rev 3 to create a Kit
suitable for IoT development. The WL865E4-P EVB can be used as Arduino Shield as shown
in Figure 3-18.

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Figure 3-18 : WL865E4-P EVB used as Arduino Uno Shield

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4. WL865E4-P BASIC OPERATIONS
General Information on Power Supply
This EVB is mainly designed for SW development,
The board can be power supplied in different ways:
1) Direct USB supply by means of a USB cable (5V, 500mA) on UART0 SMD USB
connector;
2) By means of a 2xAA 1V5 batteries on the bottom side by using the battery holder
provided with the packaging, or by means of a standard lithium 3.6V battery plugged
into the SMD battery connector on the bottom side (the WL865E4-P does not embed a
battery charger),
3) By plugging Arduino on the bottom side, if you supply Arduino Uno-Rev3 board with its
own supply source (Arduino Shield)
4) By means of external power supply sources directly connected to proper header of
PL302 and PL301
The WL865E4-P is not able to supply the Arduino board.
The power sources 1-3 activate a DC/DC and an LDO that create the 3V3 and 1V8 necessary
to the board operation. The DC/DC 3V3 power is noisy. Consider at least 1dBm of better
performance in RX sensitivity and EVB TX margin if powered from 3V3 bench power supply
4). Program the WL865E4-P module
To follow this procedure, you need the programming tool WL865E4 Loader and the binaries.
In order to program or update the firmware in the WL865E4-P module, please follow these
steps:
1) Plug the micro-USB cable on UART0 USB port(Item 13 in Figure 3-2) ontheWL865E4-
P EVB and plug the other end into a USB port on your computer or laptop.
2) Ensure that 3V3_INT switch (Item 14 in Figure 3-2) is in OFF position, the jumpers on
PL301 and PL302 for power configuration should be as shown in the Figure 3-12 and
PL603 jumpers (item 8 in Figure 3-2), are in 1-3 (DEBUG ON) and 2-4 (BOOT ON)
position.
3) Open the WL865E4 Loader and follow the steps indicated in Figure 4-1
Figure 4-1: WL865E4-P EVB programming –STEP 3

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4) Put the 3V3_INT switch (item 14 in Figure 3-2) to ON position
5) Click the “Program” button to program the EVB. Programming status will be displayed
on the WL865E4 loader
(a)
(b)
Figure 4-2: WL865E4-P EVB programming- STEP 5
6) If the programming is successful “Flash Success” is displayed, otherwise “Flash
Failed! Please, reset the board” will be displayed.
Run the WL865E4-P Module
The WL865E4-P EVB can be put in APPLICATION mode byclosing pins 4 and 6 (BOOT OFF)
and pins 3 and 5 (DEBUG OFF) of the PL603 header (item 8 in Figure 3-2) or by leaving them
unplugged.
The following use cases describe the wireless operations of the WL865E4-P module using
Telit-Command Style or Legacy Gainspan Command Style.
The WL865E4-P module supports two modes of operations:
•Station Mode
•Limited AP Mode
As first step, you should choose whether work in Telit-Command Style or in legacy Gainspan
Style, type:
AT+YLC=0 for Telit Command Style
AT+YLC=1 for Legacy Gainspan Command Style
Activate Echo and Verbose mode typing:
ATE1
ATV1
Use Case 1: Configure WL865E4-P node using Telit-Command Style Commands
•Station Mode:
Following commands (Figure 4-3) are used to configure the WL865E4-P node in station
mode. Associate the node to an access point, for example, AE_Hardik.
AT+WNI=0
AT+WNCN=1,"AE_Hardik"