Wireless RF Modules and dongles for IoT | Coral RF

N537EP is a professional-grade, long-range USB radio dongle designed to provide an easy and powerful development and testing platform for Sub-1GHz wireless applications. Integrates the Texas Instruments CC1314R10 wireless microcontroller and CC1190 RF range extender, a programer LED, a programer buttom, high-stability TCXO, and a USB-to-UART bridge chip into a compact and robust enclosure.

Engineered for the 868 MHz, 915 MHz ISM bands, it delivers up to +27 dBm of output power and excellent -112 dBm receiver sensitivity.

Key Features & Benefits

Plug-and-Play Convenience: USB 2.0 interface.
High Performance & Range: +27 dBm output power and -112 dBm sensitivity.
Multi-Band Support: 868 MHz (EU), 915 MHz (USA).
Developer-Ready Design: Advanced secondary development, firmware debugging, and custom hardware integration.

Applications

Wireless Protocol Development & Testing: Ideal for developing and testing proprietary or standards-based (e.g., Wi-SUN, proprietary LPWAN) wireless stacks.
IoT Gateway & Data Logger: Acts as a simple PC-connected gateway for sensor networks or a data logging receiver.
Network Diagnostics & Range Testing: Perfect for evaluating link performance, network coverage, and system reliability in the field.
Educational & Research Projects: Provides a complete, ready-to-use platform for academic and scientific wireless communications projects.
Remote Monitoring & Control: Enables PC-based monitoring and control of long-distance wireless assets.

Technical Specifications

Category	Parameter	Specification
RF Core	Wireless MCU	Texas Instruments CC1314R10RGZ
	RF Front-End	Texas Instruments CC1190 (PA/LNA)
	Frequency Reference	High-Stability TCXO
RF Performance	Supported Frequency Bands	868 MHz, 915 MHz
	Max. Output Power	+27 dBm (500 mW)
	Receiver Sensitivity	-112 dBm @ 50 kbps
	Modulation	Programmable (G)FSK, OOK
	Data Symbol Rate	0.3 – 4000 kbps
	Typical Communication Distance	5000 m (LOS, 1.2 kbps, 3 dBi antenna)
Hardware & Interface	Host Interface	USB 2.0 (Virtual COM Port via integrated USB-UART bridge)
	Antenna Interface	Internal IPEX Connector & spring antenna
	Development Access	Full CC1314R10 pin-out accessible on internal PCB for advanced use.
	Overall Dimensions (Enclosure)	45.0 x 19.0 x 8.0 mm
	PCB Dimensions	37.0 x 17.0 x 7.0 mm
Electrical	Supply Voltage	+5.0 V (provided via USB port, 4.75V – 5.25V range)
	TX Current	~400 mA (peak @ +27 dBm)
	RX Current	25 mA
	Operating Temperature	-30°C to +75°C

Ordering Information

Ordering Code	Core ICs	Target Frequency Band	Output Power
N537EP-CC1314R10-868M	CC1314R10 + CC1190	860 – 880 MHz	+27 dBm
N537EP-CC1314R10-915M	CC1314R10 + CC1190	902 – 928 MHz	+27 dBm

Shell color options and bulk pricing are available upon request.

Development Support

Software: TI's SimpleLink™ CC13xx software development kit (SDK) and Code Composer Studio™.
Documentation: Schematics and basic programming guides are available.
Driver: Standard USB CDC/ACM drivers.

Why Choose the N537EP Dongle?

Accelerate Development: Go wireless in minutes..
Professional Performance: Get lab-grade RF performance in a portable, affordable tool.
Maximum Flexibility: Use as transceiver, bridge, or embedded core..
Global Ready: 2.4Ghz band.

Product Line

N537BP follows a different development paradigm from our full-stack dongle.

Model	Core MCU	On-Chip Flash	Freqe	Next Step
14dBm N534BP Dongle	CC1312R	352KB	433/868/915MHz	Learn More →
14dBm N534EP Dongle	CC1314R10	1 MB	433/868/915MHz	Learn More →
0.5 Watt N537BP Dongle	CC1312R	352KB	433/868/915MHz	Learn More →
0.5 Watt N537EP Dongle	CC1314R10	1 MB	433/868/915MHz	Learn More →

Simple Selection Guide:

Choose the N537 Series (N537BP/N537EP) if you are building a unique, proprietary protocol and have the resources for full-stack development.
Choose the N537EP if your project requires standard protocols (like Wi-SUN or Wireless M-Bus) or your primary goal is to larger development time, cost, and risk.