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WIRELESS & SENSING PRODUCTS
SX1276 Development Kit
USER GUIDE
Revision 1 – January 2014 Page 2 of 53 www.semtech.com
©2014 Semtech Corporation
Table of Contents
Table of Contents .......................................................................................................................................... 2
Index of Figures ............................................................................................................................................ 3
1Preamble ................................................................................................................................................ 4
2Introduction ............................................................................................................................................ 4
3Getting Started ....................................................................................................................................... 5
3.1Evaluation Kit Contents ................................................................................................................. 5
3.2Ordering information ..................................................................................................................... 6
3.3Updating the firmware ................................................................................................................... 6
4Eiger Platform Presentation ................................................................................................................. 10
4.1Platform Description .................................................................................................................... 10
4.2SX1276 Module Hardware .......................................................................................................... 11
4.2.1SX1276RF1IAS ....................................................................................................................... 11
4.2.2SX1276RF1JAS ...................................................................................................................... 12
4.2.3SX1276RF1KAS...................................................................................................................... 13
4.2.4Module Antenna ...................................................................................................................... 14
5Eiger platform for PER Testing ............................................................................................................ 15
5.1Menu Description ........................................................................................................................ 15
5.2Using the Eiger platform .............................................................................................................. 15
5.2.1System Window....................................................................................................................... 16
5.2.2PER Demo Window ................................................................................................................ 19
5.2.3PER Rx Bar-graph .................................................................................................................. 28
6SX1276SKA Software Description ....................................................................................................... 29
6.1SX1276SKA Quick start Guide ................................................................................................... 29
6.2LoRa Mode .................................................................................................................................. 32
6.2.1LoRa Menu .............................................................................................................................. 32
6.2.2LoRa Common Window .......................................................................................................... 33
6.2.3LoRa Parameters Window ...................................................................................................... 34
6.3FSK Mode ...................................................................................................................... ............. 35
6.3.1FSK Menu ...................................................................................................................... ......... 35
6.3.2Common window ................................................................................................................. .... 36
6.3.3Transmitter window ................................................................................................................. 37
6.3.4Receiver window ..................................................................................................................... 38
6.3.5IRQ and Map window .............................................................................................................. 39
6.3.6Packet Handler window ........................................................................................................... 40
6.3.7Sequencer window .................................................................................................................. 41
6.3.8Temperature window ............................................................................................................... 42
7How to... ............................................................................................................................................... 43
7.1… perform a simple transmission / reception in LoRa ................................................................ 43
7.2… perform a simple transmission / reception in FSK .................................................................. 45
7.3… perform Continuous transmission and Reception in LoRa ..................................................... 49
7.4… Log the Transmitted or Received packets .............................................................................. 50
7.5… perform a CW or PN9 Tx test on the SX1276 ........................................................................ 51
7.6… check the frequency accuracy of the SX1276 module ........................................................... 51
8Troubleshooting ................................................................................................................................... 52
8.1The Eiger platform indicates very high PER even in short range ............................................... 52
8.2The communication range in Lora is very poor ........................................................................... 52
8.3The SX1276SKA do not detect the device through the USB ...................................................... 52
8.4The Eiger platform does not seem to work anymore .................................................................. 52
8.5The Eiger platform touch screen is not accurate ........................................................................ 52
WIRELESS & SENSING PRODUCTS
SX1276 Development Kit
USER GUIDE
Revision 1 – January 2014 Page 3 of 53 www.semtech.com
©2014 Semtech Corporation
Index of Figures
Figure 1: SX1276 Development Kit ............................................................................................................... 5
Figure 2: Eiger platform description ............................................................................................................ 10
Figure 3: SX1276RF1IAS Module Schematic ............................................................................................. 11
Figure 4: SX1276RF1JAS Module Schematic ............................................................................................ 12
Figure 5: SX1276RF1KAS Module Schematic ........................................................................................... 13
Figure 6: LF and HF Antenna Connection .................................................................................................. 14
Figure 7: Frequency Band Targeted Antenna............................................................................................. 14
Figure 8: Connect both USB ports to use the SX1276SKA ........................................................................ 29
Figure 9: SX1276 window organization ...................................................................................................... 30
Figure 10: Register table ............................................................................................................................. 31
Figure 11: SX1276SKA Boot-up windows .................................................................................................. 33
Figure 12: LoRa Radio parameters window ................................................................................................ 34
Figure 13: FSK window structure ................................................................................................................ 35
Figure 14: FSK Common window ............................................................................................................... 36
Figure 15: FSK Transmitter window ............................................................................................................ 37
Figure 16: FSK Receiver window ................................................................................................................ 38
Figure 17: FSK IRQ and Map window ........................................................................................................ 39
Figure 18: FSK Packet Handler window ..................................................................................................... 40
Figure 19: FSK Sequencer window ............................................................................................................ 41
Figure 20: FSK Temperature window ......................................................................................................... 42
WIRELESS & SENSING PRODUCTS
SX1276 Development Kit
USER GUIDE
Revision 1 – January 2014 Page 4 of 53 www.semtech.com
©2014 Semtech Corporation
1 Preamble
This document describes how to use the SX1276 Evaluation kit. This document describes especially the
SX1276 Eiger platform and the SX1276SKA User Interface. We strongly recommend for the user to read
thoroughly the datasheet of the SX1276 prior to start working on the device. Most of this document
assumes a general knowledge on the SX1276 and modern RF communications.
2 Introduction
The SX1276 is a single-chip integrated circuit ideally suited for today's high performance ISM band RF
applications. Added to the renowned, high-performance and low-cost, FSK / OOK RF transceiver modem,
the SX1276 is also equipped with the LoRa proprietary transceiver modem. This advanced feature set,
including a state of the art packet engine, greatly simplifies system design whilst the high level of
integration reduces the external BOM to a handful of passive decoupling and matching components. It is
intended for use as high-performance, long range, half-duplex bi-directional RF links, and where stable
and constant RF performances are re quired over the full operating range of the device down to 1.8V.
The SX1276 is intended for applications over a wide frequency range and it is covering all available sub-
1GHz frequency bands (168MHz, 434MHz, 470MHz, 868MHz and 902MHz). Coupled with a link budget
in excess of 135 dB in FSK in excess of 155 dB in LoRa, the SX1276 really offers the possibility of two
modems in one single package. The SX1276 complies with both ETSI and FCC regulatory requirements
and is available in a 5x5 mm QFN 28 lead free package.
The SX1276 Evaluation kit, based around the Eiger platform, allows the user to test every aspect of the
radio, both from the system and RF point of view.
On one hand, the Eiger platform is a touch screen portable device which has been design to enable quick
and easy testing of the PER performances of the SX1276. On the other hand, the SX1276SKA is a PC
based evaluation tool which allows in de pth testing of the radio.
This document is therefore divided in two parts: the first part present the SX1276 Eiger module and how
to perform PER test in LoRa and FSK; the second part of this document present the SX1276 SKA and
how it can be used to test every single aspect of the radio.
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WIRELESS & SENSING PRODUCTS
SX1276 Development Kit
USER GUIDE
Revision 1 – January 2014 Page 6 of 53 www.semtech.com
©2014 Semtech Corporation
3.2 Ordering information
Each of part of the SX1276 Evaluation kit can be ordered as a single entity or in a whole package. When
ordering, please refer to the following parts numbers:
SX1276DVK1IAS SX1276 Development Kit - 169/868MHz version with TCXO
SX1276DVK1JAS SX1276 Development Kit - 433/868MHz version with XTAL
SX1276DVK1KAS SX1276 Development Kit - 490/915MHz version with XTAL
SX1276RF1IAS SX1276 Evaluation Module - 169/868MHz versio n with TCXO + Antennas
SX1276RF1JAS SX1276 Evaluation Module - 433/868MHz versio n with XTAL + Antennas
SX1276RF1KAS SX1276 Evaluation Module - 490/915MHz versio n with XTAL + Antennas
For more information on each of the opti ons available, please, contact your local Semtech representative.
The SX1276SKA evaluation software, the firmware, drivers and all SX1276 related materials are available
on the Semtech website: http://www.semtech.com/wireless-rf/rf-transceivers/
3.3 Updating the firmware
Updating the Eiger platform firmware is straight forward given that the user follows some simple steps.
The first step is to install the Eiger platform drivers on the PC used to update the firmware. These drivers,
called RLink USB drivers are located in the folder RLinkDrv given with every version of the firmware. To
install the driver, simply launch the file RLinkUSBInstall.exe.
Once the RLink drivers are installed, the firmware upgrade is done through the update.bat file which will
upload the correct version of the firmware depending on several options rel ated to the Eiger platform or
module being used. When launching the application, the following window opens:
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©2014 S
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When th
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1
– January
2
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mtech Corp
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Settings
PRODUC
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2
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In case o
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the touch
Once a b
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1
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2
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mtech Corp
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A
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W
IRELESS
&
Revision
©2014 S
e
5.2.1.3
5.2.1.4
&
SENSING
1
– January
2
e
mtech Corp
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Bootloa
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About
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2
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IRELESS
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5.2.2
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When en
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x
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– January
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mtech Corp
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P
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R Demo Wi
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W
IRELESS
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A
text in
Setting s
c
&
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2
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2
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S
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W
W
IRELESS
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Revision
©2014 S
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5.2.2.1
For a giv
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Set th
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– January
2
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mtech Corp
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IRELESS
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©2014 S
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5.2.2.2
In FSK m
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The prea
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2
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mtech Corp
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W
IRELESS
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©2014 S
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5.2.2.3
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1
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2
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mtech Corp
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IRELESS
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Revision
©2014 S
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5.2.2.4
In LoRa
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The prea
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&
SENSING
1
– January
2
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mtech Corp
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IRELESS
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©2014 S
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5.2.2.5
Once the
The TX
w
PER Tx
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– January
2
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mtech Corp
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W
IRELESS
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©2014 S
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5.2.2.6
PER Rx
w
In LoRa
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e
&
SENSING
1
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2
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mtech Corp
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W
IRELESS
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PER Rx
w
Reset
&
SENSING
1
– January
2
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mtech Corp
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w
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the PER co
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2
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W
IRELESS
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©2014 S
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5.2.3
P
In Rx mo
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mtech Corp
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W
IRELESS
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Revision
©2014 S
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6 S
X
The SX1
2
platforms
.
SX1276.
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mtech Corp
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2
014
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For refer
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6.2 L
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6.2.1
L
By defaul
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6.2.2
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6.2.3
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6.3 F
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The FSK
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6.3.2
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6.3.3
T
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6.3.4
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6.3.5 I
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The IRQ
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6.3.6
P
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smitted or di
t
ransmission
a
ge 40 of 53
Packet Han
d
w
s to control t
h
o
n or recepti
o
a
cket structu
r
e
fined, this vi
e
splay the pa
y
or reception.
d
ler windo w
h
e transmissi
o
n, this wind
o
r
e.
e
w allows th
e
y
load receive
d
4
SX127
6
w
on or recepti
o
o
w allow the
u
e
user that
a
d
.
6
Develop
m
USE
R
w
ww.semtec
h
o
n of packet
s
user to defin
e
a
ll each field
m
ent Kit
R
GUIDE
h
.com
s
once
e
d the
of the
W
W
IRELESS
&
Revision
©2014 S
e
6.3.7
S
The sequ
the devic
e
refer to th
&
SENSING
1
– January
2
e
mtech Corp
o
S
equence
r
encer wi ndo
w
e
will react f
o
e datasheet.
PRODUC
T
2
014
o
ration
r
window
F
w
allows the
u
o
llowing an e
v
T
S
P
a
F
igure 19: F
S
u
ser to setup
v
ent. For mo
r
a
ge 41 of 53
S
K Sequenc
e
the internal
s
r
e informatio
n
e
r win dow
s
tate machin
e
n
on the FSK
SX127
6
w
e
of the devi
c
internal stat
e
6
Develop
m
USE
R
w
ww.semtec
h
c
e and contr
o
e
machine, p
l
m
ent Kit
R
GUIDE
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.com
o
l how
l
ease,
W
W
IRELESS
&
Revision
©2014 S
e
6.3.8
T
The SX1
2
SX1276
t
dialog bo
x
exceeds
t
&
SENSING
1
– January
2
e
mtech Corp
o
T
emperat
u
2
76 is fitted
w
t
emperature
s
x
. If auto cali
b
t
he threshol d
.
PRODUC
T
2
014
o
ration
u
re windo
w
Fi
g
w
ith an inte
r
s
ensor by cl
i
b
ration is set
,
.
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a
T
S
P
a
w
g
ure 20: FS
K
nal temperat
i
cking on th
e
,
a new calib
r
a
lue could b
e
a
ge 42 of 53
K
Temperatu
ure sensor.
N
e
Calibrate b
u
r
ation will be
e
set to 5, 10,
u
re window
N
ote that us
e
u
tton to acc
e
performed at
15 and 20°
C
SX127
6
w
e
r is prompt
e
e
ss the tem
p
every temp
e
C
.
6
Develop
m
USE
R
w
ww.semtec
h
e
d to calibra
t
p
erature cali
b
e
rature chang
m
ent Kit
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GUIDE
h
.com
t
e the
b
ration
e that
W
W
IRELESS
&
Revision
©2014 S
e
7 H
o
7.1 …
Performi
n
First, the
Second, t
It is impo
Operatin
g
&
SENSING
1
– January
2
e
mtech Corp
o
o
w to...
perform
n
g a simple T
r
u
ser needs t
o
he user nee
d
rtant to noti
c
g
mode is left
Click “St
a
PRODUC
T
2
014
o
ration
a simpl
e
r
ansmission
–
o
set the RF t
d
s to set the
L
c
e that the d
e
in “Standby”.
a
rt” to start T
r
T
S
P
a
e
transm
i
–
Reception i
n
ransmission
p
L
oRa modula
t
e
vice mode
o
r
ansmitting
a
ge 43 of 53
i
ssion / r
e
n
LoRa is fai
r
p
arameters:
t
ion paramet
e
o
f operation i
s
e
ception
r
ly straight fo
r
e
rs:
s
standby b
e
Set the Dev
i
SX127
6
w
in LoRa
r
ward.
e
tween pack
e
Set the fr
e
Set the Spr
e
Set the Co
d
Set the Ba
n
i
ce in Trans
m
Set the P
a
Optimize t
r
for Low D
a
(mandator
y
SF12 with
6
Develop
m
USE
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w
ww.semtec
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e
ts, this is w
h
e
quency
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ading Facto
d
ing Rate
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dwidth
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itter Mode
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yload
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ansmission
a
tarate OFF
y
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n
BW=125KH
z
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ent Kit
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r
n
d
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IRELESS
&
Revision
©2014 S
e
On the R
e
Then we
n
A
t this st
a
on the Ei
g
C
&
SENSING
1
– January
2
e
mtech Corp
o
e
ception side
n
eed to set t
h
a
ge, the tran
s
g
er platforms
.
lick “Start” to
PRODUC
T
2
014
o
ration
, the principl
e
h
e device in r
e
s
mission – re
c
.
start Receivi
n
T
S
P
a
e
is exactly th
e
e
ception afte
r
c
eption shoul
d
n
g
a
ge 44 of 53
e
same. We
f
r
setting the
L
d
be complet
Set t
h
f
irst need to
s
L
ora modulati
t
e and the us
e
h
e Device in
R
SX127
6
w
s
et the basic
r
i
on paramete
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r should se
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e
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S
Set the
C
Set the
B
Optimi
z
Low da
t
(manda
SF12)
Enable
t
check
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eceiver
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m
USE
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w
ww.semtec
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r
adio parame
rs.
e
the LEDs bl
e
quency
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preading Fa
c
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oding Rate
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andwidth
z
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t
arate OFF
tory for SF11
t
he payload
C
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ent Kit
R
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.com
ters:
inking
c
tor
o
n for
and
C
RC
W
W
IRELESS
&
Revision
©2014 S
e
7.2 …
First, you
In the tra
then we
s
&
SENSING
1
– January
2
e
mtech Corp
o
perform
need to set t
n
smitter, rec
e
s
imply need t
o
PRODUC
T
2
014
o
ration
a simpl
e
h
e RF param
e
iver and IR
Q
o
set our pac
k
T
S
P
a
e
transm
i
eters for the
t
Q
windows,
a
k
et structure.
a
ge 45 of 53
i
ssion / r
e
t
ransmission
:
a
ll the param
e
e
ception
:
eters can be
Set the fr
e
Set the bit
Set the Fr
e
Set the pr
Set the pr
e
Set the S
y
Set the S
y
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pa
Set the
pa
SX127
6
w
in FSK
left at their
d
e
quency: 915
rate: 19,200
b
eq
uenc
y
devi
r
eamble size:
e
amble polar
y
nc Word siz
e
y
nc Word: 0x
6
a
cket len
g
th:
v
ay
load: 0xA1-
0
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m
USE
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w
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default value
,000,000 Hz
b
ps
ation: 50,00
0
5
ity: 0x55
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: 4
6
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ariable
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ent Kit
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.com
s and
0
Hz
W
W
IRELESS
&
Revision
©2014 S
e
A
t this st
a
mode so
t
To start s
e
The devi
c
indicate t
h
&
SENSING
1
– January
2
e
mtech Corp
o
a
ge the radio
t
hat packets
a
e
nding pack
e
c
e is now se
n
h
at the devic
e
PRODUC
T
2
014
o
ration
is fully config
a
re ready to
b
e
ts, simply cli
c
n
ding packet
.
e
is currently
t
T
S
P
a
ured on the t
r
b
e sent from
t
c
k on the “St
a
.
You can al
s
t
ransmitting.
a
ge 46 of 53
r
ansmitter si
d
t
he device.
a
rt” button.
s
o see the Y
e
d
e. We can n
o
e
llow LED fl
a
Set th
e
A
sm
a
allowi
n
packe
to ‘0’
w
indefi
n
Tx Pa
c
packe
t
Press
Notic
e
a pac
Press
SX127
6
w
o
w set the d
e
a
shing on th
e
e
Device in T
r
a
ll control win
n
g the user t
o
ts to be sent.
w
ill make the
n
itely.
c
kets: Indicat
e
t
s sent
“Start” to st
a
e
the green L
ket is sent
“Stop” to sto
6
Develop
m
USE
R
w
ww.semtec
h
e
vice in Tran
s
e
Eiger mod
u
r
ansmitter M
o
dow appears
o
set the num
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v
device trans
m
e
s the numb
e
a
rt sending p
a
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g
p sending pa
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ent Kit
R
GUIDE
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.com
s
mitter
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les to
o
de
ber of
v
alue
m
itting
e
r of
a
ckets
g
when
ckets
W
W
IRELESS
&
Revision
©2014 S
e
We must
as done f
o
In the rec
e
&
SENSING
1
– January
2
e
mtech Corp
o
now configur
e
o
r the transm
e
iver, it is ne
c
PRODUC
T
2
014
o
ration
e
the receive
itter side. Th
e
c
essary to se
T
S
P
a
r side. Open
a
e
process is i
d
t some para
m
a
ge 47 of 53
a
new windo
w
d
entical:
m
eters to con
f
w
of the SX1
2
f
igure the re
c
Set the fr
e
Set the bi
t
Set the Fr
Set the R
x
Set the A
F
Set the A
F
Set the Fr
e
Set
A
GC
SX127
6
w
2
76SKA and
c
eiver.
e
quency: 91
5
t
rate: 19,200
r
e
q
uenc
y
dev
x
Bandwidth:
F
C Auto: ON
F
C Auto clea
r
eq
uenc
y
dev
i
Auto: ON
6
Develop
m
USE
R
w
ww.semtec
h
configure th
e
5
,000,000 Hz
bps
iation: 50,00
0
100,000 Hz
r
: ON
i
ation: 50,00
0
m
ent Kit
R
GUIDE
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radio
0
Hz
0
Hz
W
W
IRELESS
&
Revision
©2014 S
e
To finish,
The r
e
&
SENSING
1
– January
2
e
mtech Corp
o
the user mu
s
e
ceived paylo
PRODUC
T
2
014
o
ration
s
t simply set t
ad is display
e
T
S
P
a
he packet ha
e
d here
a
ge 48 of 53
ndler param
e
Number of
pa
e
ters as in Tx
Set the De
v
Press “Sta
r
acket receiv
e
Set the pr
e
Set the pr
e
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yn
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yn
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p
a
c
SX127
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w
:
v
ice in Recei
v
r
t” to start re
c
e
d
e
amble size:
e
amble polari
t
n
c Word size
n
c Word: 0x6
c
ket len
g
th:
v
6
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m
USE
R
w
ww.semtec
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v
er Mode
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eivin
g
p
acke
t
5
t
y: 0x55
: 4
9- 0x81-…
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ariable
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ent Kit
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t
s
W
W
IRELESS
&
Revision
©2014 S
e
7.3 …
It is poss
modulati
o
in the RA
M
It is also
receiving
&
SENSING
1
– January
2
e
mtech Corp
o
perform
ible to set t
h
o
n. In this mo
d
M
.
possible to
s
the packet s
e
PRODUC
T
2
014
o
ration
Continu
h
e SX1276 i
n
d
e, the SX12
s
et the devi
c
e
nt from the t
r
T
S
P
a
ous tran
s
n
Continuous
76 will be go
i
c
e in Continu
r
ansmitter.
a
ge 49 of 53
s
missio
n
Tx mode to
i
ng through t
h
ous Rx mod
n
and Re
c
perform a
s
h
e FiFo and
s
e. In this m
o
SX127
6
w
c
eption i
n
s
pectral eval
u
s
end whatev
e
o
de, the dev
i
Set the
d
continu
o
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d
continu
o
6
Develop
m
USE
R
w
ww.semtec
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n
LoRa
u
ation of the
e
r data are p
r
i
ce is contin
u
d
evice in
o
us TX mode
d
evice in
o
us RX mode
m
ent Kit
R
GUIDE
h
.com
LoRa
r
esent
u
ously
W
W
IRELESS
&
Revision
©2014 S
e
7.4 …
The SX1
2
packet h
a
Dependin
&
SENSING
1
– January
2
e
mtech Corp
o
Log the
2
76SKA has
a
s been sent
o
g if you are i
n
S
PRODUC
T
2
014
o
ration
Transmi
t
a logging fa
c
o
r received a
n
n
FSK mode
o
S
tart the Log
g
T
S
P
a
t
ted or R
e
c
ility which
a
n
d with all th
e
o
r in LoRa m
o
g
ing of the tr
a
In FSK
limited
a
Then,
w
numbe
r
a
ge 50 of 53
e
ceived
p
a
llows the us
e
e
information
o
de, a differe
a
nsmitted or r
e
mode, the p
a
a
mount of pa
w
hen the pac
k
r
of desired p
a
In LoRa m
o
disabled.
O
packets wil
l
packet log
g
When ena
b
start a com
existing file
p
ackets
e
r to get the
related to thi
s
nt pop-up wi
n
e
ceived pac
k
a
cket logger
a
a
cket (indicat
e
k
ets are bein
g
a
ckets will b
e
o
de, the pack
e
O
nce enabled
,
l be logged i
n
g
er is disable
d
b
ling the pac
k
plete new lo
g
.
SX127
6
w
exact time
s
s
packet.
n
dow will ap
p
k
ets
a
llows to the
u
e
d by the val
u
g
transmitted
e
logged in th
e
et logger is e
,
all transmitt
e
n
the selecte
d
d
.
k
et logger, it i
s
g
in a new file
6
Develop
m
USE
R
w
ww.semtec
h
s
tamps at w
h
p
ear:
u
ser to only l
o
u
e “Max Sam
p
or received,
e
file selecte
d
nabled or
e
d or receive
d
d
file until the
s
possible to
or to appen
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ent Kit
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ich a
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the
d
.
d
d
an
WIRELESS & SENSING PRODUCTS
SX1276 Development Kit
USER GUIDE
Revision 1 – January 2014 Page 51 of 53 www.semtech.com
©2014 Semtech Corporation
7.5 … perform a CW or PN9 Tx test on the SX1276
The SX1276 does not have a dedicated CW or PN9 Tx test mode implemented. However, it is possible to
perform this test manually by setting the device in Tx continuous mode, and feed PN9/15 data stream to
the DATA pin (DIO2/DATA), from a signal generator.
7.6 … check the frequency accuracy of the SX1276 module
There is a very simple way to get the frequency error of the sx1276 modules. The core idea is to set the
device in FSK and to set the frequency deviation to 0. In this case, the device will only emit a signal at the
center frequency. The difference between the measured value and the set value gives you the frequency
error.
WIRELESS & SENSING PRODUCTS
SX1276 Development Kit
USER GUIDE
Revision 1 – January 2014 Page 52 of 53 www.semtech.com
©2014 Semtech Corporation
8 Troubleshooting
Each Eiger platform, radio module or software kit has been thoroughly tested before to be released for
customer evaluation. The section below highlights some of the common issues faced by users and how it
can be fixed.
8.1 The Eiger platform indicates very high PER even in short range
There are several reasons which can have a dramatic influence over the performance of the platform.
One of the common reasons is that the frequency selected is in the GSM or in another already used
frequency band. If the frequency you have selected is already used by another RF system, the
communication will obviously be affected. We therefore recommend to the user to check the RF band
usage in his location before to start any PER testing.
8.2 The communication range in Lora is very poor
There are two aspects which can limit the LoRa performances: the emission power and the antenna.
Please, make sure that we are using enough power to reach the distance you want to achieve. The Eiger
platform can output up to 20dBm signals. The other aspect is the a ntenna, ple ase, make sure the
antenna you are using is designed to operate at the frequency region you are transmitting in.
8.3 The SX1276SKA do not detect the device through the USB
This issue is usually caused by a wrong connection of the USB
The step below should fix the issue.
1- Make sure the Eiger Platform is powered down (Battery switch set to 0) and is not connected to
the PC through the USB.
2- Reconnect the side USB to the PC, the red LED on the left side should light up
3- Connect the bottom USB to the PC.
4- Power the device up (Battery switch set to 1)
5- Press the five-way central push button until the screen light up.
6- Launch the SX1276SKA on the PC
8.4 The Eiger platform does not seem to work anymore
The battery is probably empty and you should connect the device through the side USB to a computer for
a few hours, time for the battery to charge.
8.5 The Eiger platform touch screen is not accurate
This is probably due to a miss-calibration of the touch screen. In this situation, the user should reset the
touch screen calibration an d perform an accurate calibration using the stylus provided.
WIRELESS & SENSING PRODUCTS
SX1276 Development Kit
USER GUIDE
Revision 1 – January 2014 Page 53 of 53 www.semtech.com
©2014 Semtech Corporation
Contact Information
© Semtech 2014
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or intellectual property rights. Semtech assumes no responsibility or liability whatsoever for any failure or
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physical or electrical stress including, but not limited to, exposure to parameters beyond the specified maximum
ratings or operation outside the specifi ed range.
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