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GEM3NFC
Hardware Manual
Version 1.0
August 31, 2020
NORTH POLE ENGINEERING INTELLECTUAL PROPERTY
THIS DOCUMENT IS INTENDED FOR USE BY APPLICATION DEVELOPERS TO
CREATE APPLICATIONS COMPATIBLE WITH THE NORTH POLE ENGINEERING
GEM MODULE. USE OF THE TECHNICAL INFORMATION CONTAINED IN THIS
DOCUMENT TO CREATE COMPETING HARDWARE TO THE NORTH POLE
ENGINEERING GEM MODULE IS STRICTLY PROHIBITED.
North Pole Engineering
© North Pole Engineering Inc. 2020
221 N 1st St, Minneapolis, MN 55401
www.npe-inc.com
612.305.0440
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Summary of Contents for North Pole GEM3NFC
- Page 1 THIS DOCUMENT IS INTENDED FOR USE BY APPLICATION DEVELOPERS TO CREATE APPLICATIONS COMPATIBLE WITH THE NORTH POLE ENGINEERING GEM MODULE. USE OF THE TECHNICAL INFORMATION CONTAINED IN THIS DOCUMENT TO CREATE COMPETING HARDWARE TO THE NORTH POLE ENGINEERING GEM MODULE IS STRICTLY PROHIBITED. North Pole Engineering ©...
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Page 2: Revision History
Revision History Version Revision Date Change History October 2, 2019 Initial draft October 30, 2019 Added mechanical drawing April 13, 2020 Added UART connection note, added power consumption data for different modes August 31, 2020 Added current consumption information and I2C interface details... -
Page 3: Table Of Contents
GEM3NFC Considerations ......................... 12 Antenna Characteristics ..........................12 Mechanical Information ........................13 Dimensions (in mm) ............................13 Connecting GEM3NFC to Console MCU ..................13 GEM3NFC Host Protocol ........................14 NFC Reader T4T card mode operation ..................14 ISO/IEC 1444A card mode .......................... 14 ISO/IEC 14443B card mode ........................ -
Page 4: Overview And Key Features
GEM3NFC Hardware Manual Overview and Key Features The GEM3NFC module is been designed to allow OEMs to easily add Bluetooth, ANT+, Apple GymKit, Samsung Galaxy Active/Active 2 and NFC reader connectivity in their product offering. The GEM3NFC module is based on Nordic Semicondutor’s nRF52840 multi-protocol Bluetooth and ANT+ chipset and integrates NXP’s PN7150X NFC reader controller. - Page 5 • Integrated NFC tap to pair support for wearables including Apple Watch through GymKit and Samsung Galaxy Active/Active2 Watches. North Pole Engineering © North Pole Engineering Inc. 2020 221 N 1st St, Minneapolis, MN 55401 www.npe-inc.com 612.305.0440...
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Page 6: Specification
Card emulation mode NFC Forum T4T Peripherals Serial Host Interface TX, RX 115.2kbps n,8,1 I2C Interface I2C Master – 400Kbps FW Upgrade North Pole Engineering Over the air Firmware SWD interface UART Interface Control Protocol GEMHCI GEMHCI binary command interface... - Page 7 Software Diagram...
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Page 8: Gem3Nfc Overview
TTL level and operate at 115.2Kbps. NOTE: External connection to the UART TX and UART RX lines should be connected as shown below. Connect host MCU TX to pin 10 (TX) on GEM3NFC module and host MCU RX to pin 12 (RX) on GEM3NFC module. -
Page 9: Additional I/O
NFC Tag Board Connection The GEM3NFC module includes an additional connector to support connection of an NFC tag board using I2C communications. Pinout of the I2C interface is shown below: NFC TAG TAG_I2C_SCL TAG_FD TAG_I2C_SDA V3R3 4.7uF NFC Reader The GEM3NFC module incorporates an NFC reader chip allowing for decoding of compatible NFC tags for user identification for example. - Page 10 Power Consumption Power Mode Average (mA) Peak (mA) Standby 0.890 NFC Polling NFC Read & Connection Watch Connected BLE Only ANT+ Only North Pole Engineering © North Pole Engineering Inc. 2020 221 N 1st St, Minneapolis, MN 55401 www.npe-inc.com 612.305.0440...
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Page 11: Gem3Nfc Considerations
Mechanical items (especially metal) should be kept as far as possible from the module antenna in all directions, including above and below the board surface. If possible, move mechanical items out and away from a keepout area of 53mm x 20mm from the GEM3NFC module edge. -
Page 12: Mechanical Information
Connecting GEM3NFC to Console MCU The GEM3NFC is designed for connection to fitness equipment console MCUs through its Serial interface. The GEM3NFC serial interface has a TX line and RX line that are 3.3V tolerant and operate at 115.2Kpbs. North Pole Engineering ©... -
Page 13: Gem3Nfc Host Protocol
GEM3NFC board and the console MCU using the GEM3NFC module’s serial host connection. The GEMHCI protocol supports a port speed of 115.2Kbps. The GEMHCI protocol is a binary protocol and is used to configure the GEM3NFC operation as well as pass fitness equipment related data to the GEM3NFC for broadcasting to connection applications using its Bluetooth/ANT+ radio. -
Page 14: Iso/Iec 14443B Card Mode
FCC & Industry Canada The GEM3NFC module has modular approval for the United States and Canada. To ensure compliance when using the GEM3NFC module in a design, the OEM is required to adhere to the implementation considerations supplied in this hardware integration guide. -
Page 15: Fcc Labeling Requirements
The OEM should have their device tested by a qualified test house to verify compliance with FCC Part 15 Subpart B limits for unintentional radiators. Any modifications to the GEM3NFC module could void the OEM’s authority to operate the equipment. -
Page 16: Industry Canada (Ic) Warning
Canada authorization is no longer considered valid and the IC ID cannot be used on the final product. In these circumstances, North Pole Engineering © North Pole Engineering Inc. 2020 221 N 1st St, Minneapolis, MN 55401 www.npe-inc.com... - Page 17 être utilisé sur le produit final. Dans ces circonstances, l'intégrateur OEM sera chargé de réévaluer le produit final (y compris l'émetteur) et l'obtention d'une autorisation distincte au Canada. Le produit final doit être étiqueté dans un endroit visible avec l'inscription suivante: " GEM3NFC Module Contient des IC: 11922A-NPE109"...
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Page 18: Bluetooth Qualification
The GEM3NFC Module has been tested against the appropriate regulatory standards for European market. OEMs should consult a qualified test house to ensure their product meets all regulatory requirements. The GEM3NFC Module Declaration of Conformities is below. Test reports are available upon request. Health and Safety – EN60950-1: 2006+A11:2009+A1:2010+A12:2011 Electromagnetic compatibility –... -
Page 19: Ordering Details
Part Number Trays Shipping Weight MOQ Multiple GEMNFC0301 100 pieces Further Assistance Please contact North Pole Engineering at 1-612-305-0440 or via email at sales@npe- inc.com if additional help is needed. NORTH POLE ENGINEERING 221 North 1 Street, Suite 310 Minneapolis, MN 55401...
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