Nanotron Technologies swarm bee LE V2 DK+ User manual

Technical Description
swarm bee LE V2 DK+ User Guide
Version: 1.0 Author: MBO
swarm bee LE V2 DK+
User Guide
1.0
NA-19-0358-0014

Technical Description
swarm bee LE V2 DK+ User Guide
Version: 1.0 Author: MBO
Page 2 Doc ID NA-19-0358-0014 © 2019 All Rights Reserved
Document Information
Document Title:
swarm bee LE V2 DK+ User Guide
Document Version:
1.0
Current Date:
2019-07-04
Print Date:
Document ID:
NA-19-0358-0014
Document Author:
Nanotron
Disclaimer
Nanotron Technologies GmbH believes the information contained herein is correct and accurate at the time of release. Nanotron
Technologies GmbH reserves the right to make changes without further notice to the product to improve reliability, function or design.
Nanotron Technologies GmbH does not assume any liability or responsibility arising out of this product, as well as any application
or circuits described herein, neither does it convey any license under its patent rights.
As far as possible, significant changes to product specifications and functionality will be provided in product specific Errata sheets,
or in new versions of this document. Customers are encouraged to check the Nanotron website for the most recent updates on
products.
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This document and the information contained herein is the subject of copyright and intellectual property rights under international
convention. All rights reserved. No part of this document may be reproduced, stored in a retrieval system, or transmitted in any form
by any means, electronic, mechanical or optical, in whole or in part, without the prior written permission of Nanotron Technologies
GmbH.
Copyright © 2 Nanotron Technologies GmbH.

Technical Description
swarm bee LE V2 DK+ User Guide
Version: 1.0 Author: MBO
© 2019 All Rights Reserved Doc ID: NA-19-0358-0014 Page 3
Contents
General Function...................................................................................................................................4
Technical Data.......................................................................................................................................5
Block Diagram .......................................................................................................................................5
Connector Configuration........................................................................................................................6
4.1 Connector Description .....................................................................................................................7
4.1.1. Connector X1...............................................................................................................................7
4.1.2. Connectors X2, X3, X10 ..............................................................................................................7
4.1.3. Connector X4...............................................................................................................................8
4.1.4. Connector X5...............................................................................................................................9
4.1.5. Connector X7...............................................................................................................................9
4.1.6. Connector X8...............................................................................................................................9
4.1.7. Connector X9...............................................................................................................................9
4.1.8. Connector X11.............................................................................................................................9
4.1.9. Connector X12.............................................................................................................................9
4.1.10. Connector X13.........................................................................................................................10
4.1.11. Connector X14.........................................................................................................................10
Testpoints............................................................................................................................................11
5.1 Testpoint TP7 ................................................................................................................................11
Schematic............................................................................................................................................13
Tables
Table 4-1: Swarm bee LE DK+ Board connector configuration.....................................................................7
Table 4-2: X2 pin assignment.......................................................................................................................7
Table 4-3: X3 pin assignment.......................................................................................................................8
Table 4-4: X10 pin assignment .....................................................................................................................8
Table 4-5: X4 pin assignment.......................................................................................................................8
Table 4-6: X12 pin assignment .....................................................................................................................9
Table 5-1: Testpoints pin assignment.........................................................................................................11
Table 5-2: Description of operating modes shown in Figure 5-1.................................................................12
Figures
Figure 1-1: Swarm bee LE DK+ Board..........................................................................................................4
Figure 3-1: Block diagram of swarm bee LE DK+ Board...............................................................................5
Figure 5-1: Screenshot of a typical swarm bee LE module current profile..................................................11
Figure 5-2: Expanded detail of the current profile screenshot.....................................................................12
Figure 6-1: Swarm bee LE DK+ Board schematic ......................................................................................13

Technical Description
swarm bee LE V2 DK+ User Guide
Version: 1.0 Author: MBO
Page 4 Doc ID NA-19-0358-0014 © 2019 All Rights Reserved
General Function
The swarm bee LE DK+ Board serves as a development toolfor developing, testing and debugging software
for Nanotrons swarm bee LE module. Several test points and connectors help to measure certain hardware
parameters, such as RF output power or current consumption.
In the following document for the swarm bee LE DK+ Board sometimes in figures and tables the term “swarm
bee kit” is used.
Figure 1-1: Swarm bee LE DK+ Board

Technical Description
swarm bee LE V2 DK+ User Guide
Version: 1.0 Author: MBO
© 2019 All Rights Reserved Doc ID: NA-19-0358-0014 Page 5
Technical Data
User and debugging interface 1………………..….. ST microcontroller embedded USART, 500 bps…2 Mbps
User and debugging interface 2………………………..….. USB, converted to USART by FTDI chip, 115kbps
Supply voltage via host connector ……………………..…………..............................................+3.1 V…+5.5 V
Power consumption over host connector……………………………………..……………………….max. 135mA
Maximum supply voltage ripple when supplied via host connector ………………………….………….30 mVpp
Supply via USB …………………………………………….….………….................. standard USB power supply
Power consumption over USB.................…....……...........……………………………...…...…….. max. 115 mA
Operating temperature………………………………………………………………………………. -30°C…+85°C
Dimensions (L x W x H)........................................................................................ 80 mm x 100 mm x 22 mm
Weight………………………………………………………………………………………………………………45 g
Block Diagram
Figure 3-1: Block diagram of swarm bee LE DK+ Board

Technical Description
swarm bee LE V2 DK+ User Guide
Version: 1.0 Author: MBO
Page 6 Doc ID NA-19-0358-0014 © 2019 All Rights Reserved
Connector Configuration
Abbildung 4-1: Swarm bee LE DK+ Board, assembly and connector configuration

Technical Description
swarm bee LE V2 DK+ User Guide
Version: 1.0 Author: MBO
© 2019 All Rights Reserved Doc ID: NA-19-0358-0014 Page 7
Table 4-1: Swarm bee LE DK+ Board connector configuration
Connector No.
Description
Type
Default State
X1
RF port
SMA type, 50 Ohm impedance
assembled
X2
Swarm bee LE pins lead through
Pin connector, 16 pole
not assembled
X3
Swarm bee LE pins lead through
Pin connector, 16 pole
not assembled
X4
Host connector
Pin connector, 10 pole
assembled, open
X5
USB
Mini-B
assembled
X7
Enable autonomous mode
Pin connector, 2 pole, jumper
assembled, closed
X8
Enable swarm bee LE module
Pin connector, 2 pole, jumper
assembled, open
X9
Measurement of current profile
Pin connector, 2 pole, jumper
assembled, closed
X10
GPIO ports 0…3, swarm bee LE pins
lead through
Pin connector, 4 pole
assembled, open
X11
Voltage output of current profile
Pin connector, 2pole
not assembled
X12
USB to Serial
Pin connector, 2 x 5 pole
assembled, partially
closed
X13
ADC input for measuring supply voltage
Pin connector, 2 pole, jumper
assembled, closed
X14
Jumper station
Pin connector, 2 x 5 pole
fitted with 3 spare
jumper bridges
4.1 Connector Description
4.1.1. Connector X1
X1 is a SMA connector with 50 Ohm impedance. It is terminated directly to the swarm bee LE module RF
port.
4.1.2. Connectors X2, X3, X10
The pin connectors X2, X3 and X10 lead through pins of the swarm bee LE module. X2 and X3 are not
assembled by default, but it is possible to contact the pin holes by measuring probes. Independently from
other connections at the swarm bee LE DK+ Board all pins of swarm bee LE module except GND pins are
lead to X2 and X3.
A detailed pin description of the swarm bee LE module pins can be found in the swarm bee LE datasheet.
Table 4-2: X2 pin assignment
X2 Pin No.
Swarm bee LE module pin no.
1
GND - not connected to swarm bee LE
2
GND - not connected to swarm bee LE
3
37
4
38
5
39
6
40
7
7

Technical Description
swarm bee LE V2 DK+ User Guide
Version: 1.0 Author: MBO
Page 8 Doc ID NA-19-0358-0014 © 2019 All Rights Reserved
X2 Pin No.
Swarm bee LE module pin no.
8
8
9
4
10
5
11
6
12
7
13
8
14
9
15
11
16
GND - not connected to swarm bee LE
Table 4-3: X3 pin assignment
X3 Pin No.
Swarm bee LE module pin no.
1
GND - not connected to swarm bee LE
2
36
3
35
4
34
5
33
6
32
7
31
8
30
9
29
10
28
11
27
12
26
13
25
14
24
15
23
16
GND - not connected to swarm bee LE
Table 4-4: X10 pin assignment
X10 Pin No.
Swarm bee LE module pin no.
1
34
2
27
3
26
4
25
4.1.3. Connector X4
The swarm bee LE module on the swarm be LE DK+ Board can be controlled from a host controller over the
connector X4 (USART / UART interface). Pins 4 …10 are connected directly to the swarm bee LE module.
A detailed pin description of these swarm bee LE module pins can be found in the swarm bee LE datasheet.
Table 4-5: X4 pin assignment
X4 Pin No.
Description
Type
Remarks
1
GND
Circuitry ground
2
VCC
External operating voltage 3.1 V … 5.5 V
3
GND
Circuitry ground
4
USART_RX
Serial port RX
seen from swarm bee LE controller
5
USART_TX
Serial port TX
seen from swarm bee LE controller
6
USART_CTS
Serial port clear to send
Not used for UART
7
USART_RTS
Serial port request to send
Not used for UART
8
USART_CK
Serial port clock
Not used for UART
9
A_MODE
Enable autonomous mode (set = off, open = on)
10
MOD_EN
Enable Module (set = disabled, open = enabled)

Technical Description
swarm bee LE V2 DK+ User Guide
Version: 1.0 Author: MBO
© 2019 All Rights Reserved Doc ID: NA-19-0358-0014 Page 9
4.1.4. Connector X5
X5 is a standard Mini-USB B connector for connecting and powering the swarm bee LE DK+ Board from a
host PC.
4.1.5. Connector X7
By bridging the Jumper X7 the autonomous mode for the swarm bee LE module can be disabled. With a
closed X7 the host mode is enabled. The manual settings of X7 are overwritten by a signal which comes
over X4/ pin9 from a host controller.
4.1.6. Connector X8
By bridging the Jumper X8 the swarm bee LE module can be disabled. With not bridged X8 the swarm bee
LE module is enabled. The manual settings of X8 are overwritten by a signal which comes over X4 / pin10
from a host controller.
4.1.7. Connector X9
X9 can be used for measuring the currents of the power down modes of the swarm bee LE module. The
default jumper bridge has to be replaced by current meter. If X9 is open, the swarm bee LE module is not
powered.
4.1.8. Connector X11
X11 is not a jumper but a measuring point for the supply current profile of the swarm bee LE module
translated into voltage. X11 is not assembled by default. More details about the function are shown in chapter
5.1.
4.1.9. Connector X12
X12 connects the signals of the USART bus of the swarm bee LE module to the USB to Serial converter
circuit. If X12 is set for USB operation, the connector X4 should not be connected to a host controller. In this
case X4 can only be used for measurements of the USART bus signals.
Table 4-6: X12 pin assignment
X12 Pin No.
Description
Type
Remarks
1
GND
Circuitry ground
2
USART_CLK
Serial port clock
For measuring the clock
3 - 4
USART_RTS
Serial port request to send
Jumper bridge, normally open
5 - 6
USART_CTS
Serial port clear to send
Jumper bridge, normally open
7 - 8
USART_TX
Serial port TX
Jumper bridge, normally closed
9 - 10
USART_RX
Serial port RX
Jumper bridge, normally closed

Technical Description
swarm bee LE V2 DK+ User Guide
Version: 1.0 Author: MBO
Page 10 Doc ID NA-19-0358-0014 © 2019 All Rights Reserved
4.1.10. Connector X13
The supply voltage can be measured by the swarm bee LE module with an internal AD-Converter. Therefore
a jumper bridge has to set over X13. With respect to the AD-converters internal supply voltage, the supply
voltage of the swarm bee LE module is divided by 2.2273 for measuring.
4.1.11. Connector X14
The “Jumper Station” X14 acts as parking place for not used jumper bridges.

Technical Description
swarm bee LE V2 DK+ User Guide
Version: 1.0 Author: MBO
© 2019 All Rights Reserved Doc ID: NA-19-0358-0014 Page 11
Testpoints
The swarm bee LE DK+ Board provides testpoints for measurements. The testpoints are suited for
connecting probes of oscillators or multimeters.
Table 5-1: Testpoints pin assignment
Testpoint
No.
Description
Function
Remarks
TP1
USART_TX
Serial port TX
Connected to swarm bee LE module, X4 and X12
TP2
USART_RX
Serial port RX
Connected to swarm bee LE module, X4 and X12
TP3
GND
Circuitry ground
TP4
GND
Circuitry ground
TP5
GND
Circuitry ground
TP6
GND
Circuitry ground
TP7
ICC/U
Supply current converted to voltage
Supply current is converted to a voltage, relation
is 1:10 (100mA →1V), see chap. 5.1
TP8
VCC*
Supply voltage
Supply voltage for swarm bee LE module
TP9
ICC
For measuring powerdown current
Same function as X9, see chap. 4.1.7
TP10
ICC
For measuring powerdown current
Same function as X9, see chap. 4.1.7
TP11
/TX_RX
Hardware TX indicator
TX = LOW, RX (2.8 V) = HIGH
TP12
GND
Circuitry ground
5.1 Testpoint TP7
On Testpoint TP7 the supply current of the swarm bee LE module is mapped to an equivalent voltage. The
relation between the supply current and the equivalent voltage is 100mA → 1V. On TP7 the user can
measure the currents of diverse operating states of the swarm bee LE module, i.e. TX current and RX
current. A current profile can be measured over the time, which allows the user to optimize the power
consumption of the module.
Figure 5-1: Screenshot of a typical swarm bee LE module current profile
Figure 5-1 shows the current consumption of several operating states of the swarm bee LE module.

Technical Description
swarm bee LE V2 DK+ User Guide
Version: 1.0 Author: MBO
Page 12 Doc ID NA-19-0358-0014 © 2019 All Rights Reserved
Table 5-2: Description of operating modes shown in Figure 5-1
Short term
Description
Init 1
Wakeup after deep sleep
Power on
Switching on the DC/DC converter for supplying the RF power amp and nanoLOC
Init 2
Initialisation of nanoLOC
Calibration
Frequency calibration of nanoLOC
MEMS sensor
Initialisation of the build in MEMS sensor
TX
Transmitting
RX
Receiving
Shut down
Shut down to deep sleep
Figure 5-2: Expanded detail of the current profile screenshot
Because the swarm bee LE module includes a DC/DC converter, the current profile shows a ripple generated
by the switching of this DC/DC converter. Depending on load and input voltage the ripple can rise up to
100mV.
This ripple does not represent the ripple of the internal supply voltage of the swarm bee LE module.

Technical Description
swarm bee LE V2 DK+ User Guide
Version: 1.0 Author: MBO
© 2019 All Rights Reserved Doc ID: NA-19-0358-0014 Page 13
Schematic
Figure 6-1: Swarm bee LE DK+ Board schematic

Technical Description
swarm bee LE V2 DK+ User Guide
Version: 1.0 Author: MBO
Page 14 Doc ID NA-19-0358-0014 © 2019 All Rights Reserved
Release History
Date
Authors
Version
Description
2019-07-04
nanotron
1.0
Initial version

Technical Description
swarm bee LE V2 DK+ User Guide
Version: 1.0 Author: MBO
Life Support Policy
These products are not designed for use in life support appli-
ances, devices, or systems where malfunction of these products
can reasonably be expected to result in personal injury. Nano-
tron Technologies GmbH customers using or selling these prod-
ucts for use in such applications do so at their own risk and
agree to fully indemnify Nanotron Technologies GmbH for any
damages resulting from such improper use or sale.
Electromagnetic Interference / Compatibility
Nearly every electronic device is susceptible to electromagnetic
interference (EMI) if inadequately shielded, designed, or other-
wise configured for electromagnetic compatibility. To avoid
electromagnetic interference and/or compatibility conflicts, do
not use this device in any facility where posted notices instruct
you to do so. In aircraft, use of any radio frequency devices must
be in accordance with applicable regulations. Hospitals or
health care facilities may be using equipment that is sensitive to
external RF energy.
With medical devices, maintain a minimum separation of 15 cm
(6 inches) between pacemakers and wireless devices and some
wireless radios may interfere with some hearing aids. If other
personal medical devices are being used in the vicinity of wire-
less devices, ensure that the device has been adequately
shielded from RF energy. In a domestic environment this prod-
uct may cause radio interference in which case the user may be
required to take adequate measures.
CAUTION - Electrostatic Sensitive Device! Precaution should
be used when handling the device in order to prevent perma-
nent damage.
FCC User Information
Statement according to FCC part 15.19:
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 un-
desired operation.
Statement according to FCC part 15.21:
Modifications not expressly approved by this company could
void the user's authority to operate the equipment.
RF exposure:
The internal / external antennas used for this mobile transmitter
must provide a separation distance of at least 20 cm from all
persons and must not be co-located or operating in conjunction
with any other antenna or transmitter.
Statement according to FCC part 15.105:
This equipment has been tested and found to comply with the
limits for a Class A and Class B digital device, pursuant to Part
15 of the FCC Rules. These limits are designed to provide rea-
sonable protection against harmful interference in a residential
installation and against harmful interference when the equip-
ment is operated in a commercial environment.
This equipment generates, uses, and can radiate radio fre-
quency energy and, if not installed and used in accordance with
the instructions as provided in the user manual, may cause
harmful interference to radio communications. However, there
is no guarantee that interference will not occur in a particular
installation. Operation of this equipment in a residential area is
likely to cause harmful interference in which case the user will
be required to correct the interference at his or her own ex-
pense.
If this equipment does cause harmful interference to radio or
television reception, which can be determined by turning the
equipment off and on, the user is encouraged to try to correct
the interference by one or more of the following measures: (1)
reorient or relocate the receiving antenna, (2) increase the sep-
aration between the equipment and receiver, (3) connect the
equipment into an outlet on a circuit different from that to the
connected equipment, and (4) consult the dealer or an experi-
enced technician for help.
About Nanotron Technologies GmbH
Today nanotron’s embedded location platform delivers location-
awareness for safety and productivity solutions across industrial
and consumer markets. The platform consists of chips, modules
and software that enable pre-cise real-time positioning and
concurrent wireless com-munication. The ubiquitous
proliferation of interoperable location platforms is creating the
location-aware Internet of Things
Headquartered in Berlin, Germany, Nanotron Technologies
GmbH was founded in 1991 and is an active member of IEEE.
Further Information
For more information about products from Nanotron Technolo-
gies GmbH, contact a sales representative at the following ad-
dress:
Nanotron Technologies GmbH
Alt-Moabit 60
10555 Berlin, Germany
Phone: [phone]
Fax: [phone]
Email: [e-mail]
Internet: www.nanotron.com