Wahoo Fitness WF116 GEM 2 Radio Module User Manual

Wahoo Fitness LLC GEM 2 Radio Module

User Manual

GEM 2 Dual Band Bluetooth and ANT+ ModuleHardware Integration GuideVersion 0.1July 27, 16Wahoo Fitness90 W. Wieuca Road N.E. Suite 110Atlanta, GA 30342Telephone: 1‐877‐978‐1112Email: support@wahoofitness.comwww.wahoofitness.com
GEM 2 Module Hardware Integration Guide Version 0.1Wahoo Fitness 290 West Wieuca Road, Suite 110Atlanta, GA 30342www.wahoofitness.com1‐877‐978‐1112© Wahoo Fitness LLC 2015Revision HistoryVersion Revision Date Change History0.1 May 2, 2016 Initial Draft
GEM 2 Module Hardware Integration Guide Version 0.1Wahoo Fitness 390 West Wieuca Road, Suite 110Atlanta, GA 30342www.wahoofitness.com1‐877‐978‐1112ContentsREVISION HISTORY 2CONTENTS 3OVERVIEW AND KEY FEATURES 4FEATURES 4SPECIFICATION 5SPECIFICATION SUMMARY 5HARDWARE SPECIFICATIONS 6BLOCK DIAGRAMS AND PINOUT 6PIN DEFINITIONS 7ELECTRICAL SPECIFICATIONS 8DESIGN CONSIDERATIONS 8HARDWARE 8MODULE LAYOUT CONSIDERATIONS 10ANTENNA CHARACTERISTICS 11MECHANICAL INFORMATION 12DIMENSIONS (IN MM)12RECOMMENDED PAD LAYOUT 12TAPE AND REEL INFORMATION 13SOLDERING GUIDELINES 13REGULATORY & STANDARDS INFORMATION 13FCC & INDUSTRY CANADA 13FEDERAL COMMUNICATION COMMISSION (FCC) RADIATION EXPOSURE STATEMENT: 13FCC LABELING REQUIREMENTS 13FCC WARNING:14INDUSTRY CANADA (IC) WARNING:14CE 16BLUETOOTH QUALIFICATION 17ORDERING DETAILS 17FURTHER ASSISTANCE 17
GEM 2 Module Hardware Integration Guide Version 0.1Wahoo Fitness 490 West Wieuca Road, Suite 110Atlanta, GA 30342www.wahoofitness.com1‐877‐978‐1112Overview and Key FeaturesThe GEM module has been designed to allow OEMs to easily add Bluetooth and ANT+wireless connectivity in their product offering. The GEM 2 module incorporates WahooFitness software specifically designed to enable fitness machines such as treadmills,exercise bikes, ellipticals, rowers, stair climbers and step machines to wirelesslycommunicate exercise data with smart phone or tablets as well as leaderboard softwaresystems. For applications other than fitness machines, developer’s can use NordicSemiconductor’s SDK to create their own embedded application specific software.The GEM 2 module is based on Nordic Semicondutor’s nRF52832 multiprotocol Bluetoothand ANT+ chipset. The GEM 2 module offers a variety of peripheral interfaces includingUART, SPI, I2C, ADC, and GPIO, has a maximum transmit power of +4dBm, and a sensitivityof ‐96dBm. This manual is intended to assist hardware integration of the GEM2moduleinto a given design. Details on Wahoo’s GEMSAFE and GEMHCI software can be foundwww.wahoogy.com. For applications using Nordic Semiconductor SDK, please refer toNordic Semiconductor’s SDK available at developer.nordicsemi.com.Features• ‐96 dBm sensitivity• TX Power‐20 to +4dBm in 4dB steps•xxmlineofsightrange•5.3mApeakTX@0dB•5.4mApeakRX• 1dB dB RSSI resolution•ARM®CortexTMM4F 32 bit processor running at 64MHz• 512 kB embedded flash memory and 64 kB RAM• Onboard NFC for Out of Band pairing• Peripheral Interfaces: ADC, GPIO, SPI, I2C, UART, Low power comparator,Temperature sensor •AESHWencryption• FCC, CE, IC certified• Integrated Antenna• RoHS compliant• Bluetooth End Product Listed• Integrated Fitness Equipment Firmware and mobile application
GEM 2 Module Hardware Integration Guide Version 0.1Wahoo Fitness 590 West Wieuca Road, Suite 110Atlanta, GA 30342www.wahoofitness.com1‐877‐978‐1112SpecificationSpecification SummaryCategory Feature ImplementationRF BluetoothANT+FrequencyMaximum Transmit PowerMinimum Transmit PowerReceive SensitivityRange4.1SingleModePeripheralBroadcast2.402‐2.480 GHz+4dBm‐20dBm‐96dBmup to TBDm line of sightPeripherals UART Host InterfaceGPIOTX, RX 115.2kbps n,8,1Link IndicatorPairing ButtonFW Upgrade Wahoo Firmware Over the airVia JTAG interfaceControl Protocol GEMSAFE or GEMHCI CSAFE Command Interfaceor GEM HCI binary commandinterfaceSupply Voltage MinMaxRecommended1.7V3.6V3.0VPower Consumption TBDPhysical TBD.mm x TBDmmEnvironmental ‐40 to +85CApprovals FCC, IC, CE, Bluetooth EPL
GEM 2 Module Hardware Integration Guide Version 0.1Wahoo Fitness 690 West Wieuca Road, Suite 110Atlanta, GA 30342www.wahoofitness.com1‐877‐978‐1112Hardware SpecificationsBlock Diagrams and PinoutHardware Block Diagram Software Diagram(P0 .0 1) 11(P0 .0 2) 12(P0 .0 8) 1418 (VCC)26 (G N D)17 (GND)(LED1) 10(P0 .0 7) 13(NF C1) 15(NF C 2) 16( P0.05) 8( P0.30) 6(P 0.27) 3(GND) 0( P0.31) 7(PAIR) 9(GND) 1( P0.26) 2( P0.28) 4( P0.29) 520 (P0.1 5)23 (SW DCLK)19 (P0.14)25 (P0.21/RST)24 (RESERVED)22 (SW DI O)21 (P0.1 6)Pinout Diagram
GEM 2 Module Hardware Integration Guide Version 0.1Wahoo Fitness 790 West Wieuca Road, Suite 110Atlanta, GA 30342www.wahoofitness.com1‐877‐978‐1112Pin DefinitionsPin number Pin Name Function Comment0GND ConnecttoGNDPlane1GND ConnecttoGNDPlane2SPIEnableSPImodeenable3 LED GPIO to trigger LED forpairing/connectionindicationActive High4 Programmable I/O ADC or GPIO5 Programmable I/O ADC or GPIO6 Programmable I/O ADC or GPIO7 Programmable I/O ADC or GPIO8NC9 NC RESERVED Reserved for 32kHzcrystal if a real timeclock is needed duringmodule sleep10 NC RESERVED Reserved for 32kHzcrystal if a real timeclock is needed duringmodule sleep11 NC12 PAIR GPIO to triggeradvertisingActive low13 UART TX/SPI MISO Host interface14 UART RX/SPI MOSI Host interface15 NFC1 NFC antenna input 116 NFC2 NFC antenna input 217 GND Module Power Ground18 VCC Module Power Supply19 UART CTS/SPI SlaveEventFlow control20 UART RTS/SPI SS Flow control21 GPIO/SPI SCLK GPIO or SPI Clock22 RESET/SWDIO Debug Interface23 SWCLK Debug Interface24 Wake Wakes module from sleep25 RESET Module Reset26 GND Connect to GND Plane
GEM 2 Module Hardware Integration Guide Version 0.1Wahoo Fitness 890 West Wieuca Road, Suite 110Atlanta, GA 30342www.wahoofitness.com1‐877‐978‐1112Electrical SpecificationsAbsolute Maximum ratingsMaximum and minimum ratings for digital and analog pins are listed below.Parameter Min MaxVCC Voltage ‐0.3V +3.9VVoltage at VIO ‐0.3V VCC+.3VStorage Temperature ‐40C +85CRecommended Operating ParametersParameter Min Typical MaxVCC 1.7V 3.0V 3.6VVCC maximum ripple 10mVVCC Rise time 60msOperating Temperature @ 3.3V ‐40C +85CDesign ConsiderationsThe GEM 2 module has been designed for easy integration into OEM applications requiringminimal additional componentry. The following section provides suggestions to ensuresuccessful design in of the GEM 2 module.HardwareVCCEnsure the power source operating range and noise is within the specified limits for theGEM 2 module and filter capacitors are incorporated as needed. The GEM 2 moduleincludes decoupling capacitors for circuits within the module. External circuits sharing thesame power source should also be decoupled locally at connections to VCC andGND.Updating Module FirmwareThe GEM 2 module firmware can be updated over the air using the Wahoo utilityapplication. The Wahoo utility application can be downloaded here: www.xxxx.yyy.comThe GEM 2 module firmware can also be updated through the Serial Wire Debug interface.The following circuit example provides a reference for developers wantinganalternativetoprogramming the GEM 2 module over the air:
GEM 2 Module Hardware Integration Guide Version 0.1Wahoo Fitness 990 West Wieuca Road, Suite 110Atlanta, GA 30342www.wahoofitness.com1‐877‐978‐1112Example for Serial Wire Debug InterfaceUART HostTheUARTisrequiredforcommunicatingbetween the GEM 2 module and fitness machineconsole using the GEMSAFE or HCI command protocol. Pins 13 and 14 of the module havebeen configured as the UART interface. Pin 13 is the UART TX line and pin 14 is the UARTRX line.ResetThe GEM 2 module can be reset by holding PIN 25 low for 0.5us. The following is anexample reset circuit:Example Reset Circuit
GEM 2 Module Hardware Integration Guide Version 0.1Wahoo Fitness 1090 West Wieuca Road, Suite 110Atlanta, GA 30342www.wahoofitness.com1‐877‐978‐1112Module Layout Considerations1. Good: Place module antenna side as close as possible to the board edge. Better:Allow module antenna area to overhang the edge of the board by ~5.6mm.2. Good: Define a copper keepout area approx. 53mm x 20mm, 6mm in from moduleedge. Better: Increase the keepout area, starting at 6mm in from module edge.3. Mechanical items (especially metal) should be kept as far as possible from themodule antenna in all directions, including above and below the board surface. Ifpossible, move mechanical items out and away from the keepout area.4. Bottom layer ground plane under the module strongly recommended. Connect allground pins directly to ground plane.5. Top layer ground plane is good to have wherever practical, but avoid having copperdirectly under the module.6. Place Via stitching where both top and bottom layer ground planes are used,especially along the plane edges adjacent the module. Top‐side area directly under the module should be kept clear of copper, silkscreen andvias
GEM 2 Module Hardware Integration Guide Version 0.1Wahoo Fitness 1190 West Wieuca Road, Suite 110Atlanta, GA 30342www.wahoofitness.com1‐877‐978‐1112Antenna CharacteristicsThe GEM 2 module includes an integrated monopole chip antenna. Antenna performancewill depend on host PCB layout. The following plots show antenna radiation pattern of theGEM 2 antenna.2.4GHz 2.442GHz 2.484GHzAntenna Gain: 5.46dBi (Typ.)
GEM 2 Module Hardware Integration Guide Version 0.1Wahoo Fitness 1290 West Wieuca Road, Suite 110Atlanta, GA 30342www.wahoofitness.com1‐877‐978‐1112Mechanical InformationDimensions (in mm)Top View Side ViewRecommended Pad LayoutThe land pattern dimensions can be modified based on experience.
GEM 2 Module Hardware Integration Guide Version 0.1Wahoo Fitness 1390 West Wieuca Road, Suite 110Atlanta, GA 30342www.wahoofitness.com1‐877‐978‐1112Tape and Reel InformationTBDSoldering GuidelinesSee the Stencil pattern above for solder paste application. Recommended Stencil thicknessis 120um.Regulatory & Standards InformationFCC & Industry CanadaThe GEM 2 module has modular approval for the United States and Canada. To ensurecompliance when using the GEM 2 module in a design, the OEM is required to adhere to theimplementation considerations supplied in this hardware integration guide.Federal Communication Commission (FCC) Radiation Exposure Statement:This device is in compliance with SAR for general population/uncontrolledexposurelimitsin ANSI/IEEE C95.1‐1999 and had been tested in accordance with the measurementmethods and procedures specified in OET Bulletin 65 Supplement C.This transceiver must not be co‐located or operating in conjunction with any other antenna,transmitter, or external amplifiers. Further testing / evaluation of the end product will berequired if the OEM’s device violates any of these requirements.The GEM 2 Module is fully approved for mobile and portable applications.FCC Labeling RequirementsWARNING: The OEM must ensure that FCC labeling requirements are met. This includes aclearly visible label on the outside of the OEM enclosure specifying the appropriate FCCidentifier is visible.Contains FCC ID: PADWF116IC: 10563A‐WF116If OEM device is larger than 8x10cm, the following FCC part 15.19 statement has to bevisible on outside of device:The enclosed device complies with Part 15 of the FCC Rules. Operation is subject to thefollowing two conditions: (1) This device may not cause harmful interference, and (2) Thisdevice must accept any interference received, including interference that may cause undesiredoperation.
GEM 2 Module Hardware Integration Guide Version 0.1Wahoo Fitness 1490 West Wieuca Road, Suite 110Atlanta, GA 30342www.wahoofitness.com1‐877‐978‐1112Label and text information type should be large enough to be legible and consistent with thedimensions of the equipment and the label. The type size is not required to belargerthaneight points.CommentsThe OEM should have their device tested by a qualified test house to verify compliance withFCC Part 15 Subpart B limits for unintentional radiators.Any modifications to the GEM 2 module could void the OEM’s authority to operate theequipment.This equipment has been tested and found to comply with the limits for a ClassBdigitaldevice, pursuant to Part 15 of the FCC Rules. These limits are designed to providereasonable protection against harmful interference in a residential installation. Thisequipment generates, uses, and can radiate radio frequency energy and, if not installed andused in accordance with the instructions, may cause harmful interference to radiocommunications. However, there is no guarantee that interference will notoccurinaparticular installation. If this equipment does not cause harmful interference to radio ortelevision reception, which can be determined by turning the equipment offandon,theuseris encouraged to correct the interference by one or more of the following measures:Re‐orient or relocate the receiving antennaIncrease the separation between the equipment and the receiverConnect the equipment to an outlet on a circuit that is different from that towhichthe receiver is connected.Consult the dealer or an experienced radio/TV technician for help.FCC Warning:“THIS DEVICE COMPLIES WITH PART 15 OF THE FCC RULES AND INDUSTRY CANADALICENSE‐EXEMPT RSS STANDARD(S). OPERATION IS SUBJECT TO THE FOLLOWING TWOCONDITIONS: (1) THIS DEVICE MAY NOT CAUSE HARMFUL INTERFERENCE, AND (2) THISDEVICE MUST ACCEPT ANY INTERFERENCE RECEIVED, INCLUDING INTERFERENCE THATMAY CAUSE UNDESIRED OPERATION.Industry Canada (IC) Warning:This device complies with Industry Canada license‐exempt RSS standard(s). Operation issubject to the following two conditions: (1) this device may not cause interference, and (2)this device must accept any interference, including interference that may cause undesiredoperation of the device.French equivalent:Le présent appareil est conforme aux CNR d'Industrie Canada applicable auxappareilsradioexempts de licence. L'exploitation est autorisée aux deux conditions suivantes : (1)l'appareil ne doit pas produire de brouillage, et (2) l'utilisateur de l'appareil doit accepter
GEM 2 Module Hardware Integration Guide Version 0.1Wahoo Fitness 1590 West Wieuca Road, Suite 110Atlanta, GA 30342www.wahoofitness.com1‐877‐978‐1112tout brouillage radioélectrique subi, même si le brouillage est susceptible d'encompromettre le fonctionnement.IC Radiation Exposure StatementThis device is in compliance with SAR for general population/uncontrolledexposurelimitsin IC RSS‐102 and had been tested in accordance with the measurement methodsandprocedures specified in IEEE 1528.REMARQUE IMPORTANTEDéclaration IC d'exposition aux radiations Ce EUT est conforme avec SAR pour lapopulation générale / limites d'exposition non contrôlée à IC RSS‐102 et a été testé enconformité avec les méthodes de mesure et procédures spécifiées dans la norme IEEE 1528.Modular ApprovalOEM is still responsible for testing their product for any additional compliancerequirements required with this module installed (for example, digital device emissions, PCperipheral requirements, etc.).Approbation modulaireOEM intégrateur est toujours responsable de tester leur produit final pour les exigences deconformité supplémentaires nécessaires à ce module installé (par exemple, les émissions depériphériques numériques, les exigences de périphériques PC, etc.)IMPORTANT NOTE:In the event that these conditions cannot be met (for example certain laptop configurationsor co‐location with another transmitter), then the Canada authorization is no longerconsidered valid and the IC ID cannot be used on the final product. In these circumstances,the OEM integrator will be responsible for re‐evaluating the end product (including thetransmitter) and obtaining a separate Canadian authorization.NOTE IMPORTANTE:Dans le cas où ces conditions ne peuvent être satisfaites (par exemple pour certainesconfigurations d'ordinateur portable ou de certaines co‐localisation avec un autreémetteur), l'autorisation du Canada n'est plus considéré comme valide et l'ID IC ne peut pasêtre utilisé sur le produit final. Dans ces circonstances, l'intégrateur OEM sera chargé deréévaluer le produit final (y compris l'émetteur) et l'obtention d'une autorisation distincteau Canada.Le produit final doit être étiqueté dans un endroit visible avec l'inscription suivante: " GEM2 Module Contient des IC: TBD"
GEM 2 Module Hardware Integration Guide Version 0.1Wahoo Fitness 1690 West Wieuca Road, Suite 110Atlanta, GA 30342www.wahoofitness.com1‐877‐978‐1112CEThe GEM 2 Module has been tested against the appropriate regulatory standards forEuropean market. OEMs should consult a qualified test house to ensure theirproductmeetsall regulatory requirements.The GEM Module Declaration of Conformities is below. Test reports are available uponrequest.Health and Safety – EN60950‐1: 2006+A11:2009+A1:2010+A12:2011Electromagnetic compatibility – EN301489‐17 Vx.x.x in accordance with EN 301 489‐1V1.8.1Radio Frequency Radiated Emissions: EN300 328 V1.8.1Wahoo Fitness declares under our sole responsibility that the essential radio tests havebeen carried out and that the GEM Module to which this declaration relates isinconformitywith all applicable essential requirements of Article 3 of the EU Directive 1999/5/EC whenused for its intended purpose.Place of Issue: Wahoo Fitness LLC90 W. Wieuca Road Suite 110Atlanta, GA 30342+1(877) 978‐1112Date: April, 2016Authorized Person: James HalterSignature:
GEM 2 Module Hardware Integration Guide Version 0.1Wahoo Fitness 1790 West Wieuca Road, Suite 110Atlanta, GA 30342www.wahoofitness.com1‐877‐978‐1112Bluetooth QualificationThe GEM 2 module has been listed with the Bluetooth Special Interest Group (SIG) as aqualified an End Product. The Wahoo Fitness Declaration ID is: TBDThe Bluetooth SIG requires every product implementing Bluetooth technology to have aDeclaration ID even though the end product references a Bluetooth design with its ownDeclaration ID.An over of the Bluetooth SIG Qualification Process is as follows:1. Register as a member of the Bluetooth SIG – www.bluetooth.org2. Go to product listing page https://www.bluetooth.org/en‐us/test‐qualification/qualification‐overview3. Go to Create a Listing: https://www.bluetooth.org/tpg/QLI_SDoc.cfm4. In the area“Reference a Qualified Design, Enter End Product ID: xxxxxxxx5. Select your Declaration ID or Purchase a Declaration ID. Fees for Declaration IDsvary based on Bluetooth SIG membership level.6. Once you have completed your listing and paid your declaration fee, your design willbe listed on the Blueooth SIG website.You can find more details on the Bluetooth SIG listing process at the following webpage:https://www.bluetooth.org/en‐us/test‐qualification/qualification‐overviewOrdering DetailsPart Number Reel Size Shipping Weight MOQ MultipleGEMSRB02 500 pieces TBD 500 500Further AssistancePlease contact Wahoo Fitness at 1‐877‐978‐1112 or via email at info@wahoofitness.com ifadditional help is needed.

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