RN41-I/RM

Serial Interfaces:	SPI, UART, USB
Package / Case:	35-SMD Module
Operating Temperature:	-40°C ~ 85°C
Mounting Type:	Surface Mount
Current - Transmitting:	65mA
Current - Receiving:	35mA
Voltage - Supply:	3 V ~ 3.6 V
Memory Size:	--
Utilized IC / Part:	--
Antenna Type:	Integrated, Chip
Series:	--
Sensitivity:	-80dBm
Power - Output:	16dBm
Data Rate:	300kbps
Frequency:	2.4GHz
Modulation:	FHSS, GFSK
Protocol:	Bluetooth v2.1 +EDR, Class 1
RF Family/Standard:	Bluetooth
Part Status:	Active
Packaging:	Tray

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Introduction

The RN41-I/RM is a low-power Class 1 Bluetooth module engineered to be embedded into commercial and industrial products. It is designed to provide reliable networked wireless connections between two devices with minimal energy consumption. This module offers a high degree of flexibility, including both Bluetooth Class 1 and Class 2 outputs, Bluetooth Low Energy (BLE) capability, low power options, and integrated device drivers for ease of integration. The RN41-I/RM operates on 2.4 GHz and is a RF transceiver module.

Applications

The RN41-I/RM provides multiple applications in various fields. It can be used in point-to-point communication links between two devices, and is ideal for remote data collection, monitoring, alerting, or location services. It can be deployed for asset tracking, smart home and building automation, home or industrial automation, smart energy control, and other Internet of Things applications. Additionally, it can be used for medical monitoring, military or security applications, transportation and logistics, white goods and industrial appliances, smartphones, tablets, wearables, and many more.

Working Principle

The RN41-I/RM uses carrier sensing multiple access (CSMA) in order to ensure an efficient usage of available media bandwidth. The module initiates and maintains a wireless link with another Bluetooth enabled device, or multiple Bluetooth enabled devices (not simultaneously). Communication between the Bluetooth enabled devices is done via the radio frequency (RF) protocol provided by the RN41-I/RM. The information exchanged between the devices is transmitted in the form of packets, which are sent and received by both devices in a single packet, thus ensuring efficient use of available media bandwidth. The RN41-I/RM RF link functions on an adaptive frequency hopping (AFH) scheme, which helps to minimize interference from other Bluetooth enabled devices, and shields against local sources of interference. The module can automatically migrate to the most reliable and interference-free channels. Additionally, the module can detect and adjust packet size (if required by application), to improve data rate, latency, and throughput.

Conclusion

The RN41-I/RM is a low-power RF transceiver module designed to be embedded into commercial and industrial products. It is an ideal solution for point-to-point communication links, remote data collection, and other Internet of Things applications. The RN41-I/RM uses a carrier sensing multiple access (CSMA) protocol for efficient media bandwidth utilization, and an adaptive frequency hopping (AFH) scheme for resilient communication. This module offers a high degree of flexibility as well as low power options and integrated device drivers, making it suitable for a wide range of applications.

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