Serial Interfaces:	SPI, UART
Package / Case:	Module
Operating Temperature:	0°C ~ 70°C
Mounting Type:	Surface Mount
Current - Transmitting:	210mA
Current - Receiving:	40mA
Voltage - Supply:	3.3V
Memory Size:	8MB Flash, 2MB ROM, 128kB RAM
Utilized IC / Part:	--
Antenna Type:	Integrated, Chip + U.FL
Series:	--
Sensitivity:	-85dBm
Power - Output:	18dBm
Data Rate:	54Mbps
Frequency:	2.4GHz
Modulation:	CDK, DBPSK, DQPSK, DSSS, OFDM
Protocol:	802.11b/g
RF Family/Standard:	WiFi
Part Status:	Active
Packaging:	Tray

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RN131C/RM application field and working principle

Introduction

The RN131C/RM is a family of Radio Frequency (RF) Transceiver Modules that provide a low power, low cost way to connect devices to a short-range, wireless networks. They are low cost, easy to integrate and offer low power consumption while maintaining reliable performance. The modules are widely used in applications such as home automation, industrial automation, customer displays, wireless sensors, Internet of Things (IoT) sensors, and in wearables.

Specifications

The RN131C/RM modules are based on the 2.4GHz transceiver from Microchip, the MRF24J40MA. The module is available in both the RN131C and RN131RM variants. The RN131C module is a surface mount module, while the RM variant has an onboard antenna for better range performance. The module has an integrated TCXO, giving it a frequency stability of ±2ppm, and is powered with a voltage range between 2.1V to 3.6V. The RF power output is up to +8.1dbm and it has a bandwidth of 2MHz. It supports a variety of data communication modes including FSK, GFSK,OOK, MSK, and more for maximum flexibility.

Features

The RN131C/RM modules have several features that make them attractive for remote wireless applications. They have an integrated authentication engine, providing secure network access and authentication. The modules also have an adjustable duty cycle, allowing them to be programmed to go into sleep mode after a configurable amount of time, reducing power consumption when not in use. The modules also support auto wake-up, allowing them to wake up and receive packets from other devices. Additionally, the modules support several serial data interfaces, including UART, SPI, and I2C.

Application Field

The RN131C/RM is a versatile RF transceiver modules and is used in a variety of applications. They can be found in home automation systems, such as alarm systems and HVAC control systems. They can also be used to enable wireless sensors, enabling the modules to act as a bridge between the physical world and the digital world. In the industrial automation space, they can be used for process control, and in customer display systems. In the medical space, the modules can be used for wireless data telemetry and remote patient monitoring.

Working Principle

The RN131C/RM modules are based on the MRF24J40MA transceiver from Microchip. The transceiver is a fully integrated RF transceiver with an integrated baseband processor, enabling it to handle all of the signal processing required for data communication. The transceiver is configured using control registers, which are written to via the serial data interface. The transceiver is then used to transmit and receive data via the antenna, enabling wireless communication.

Conclusion

The RN131C/RM is a versatile family of Radio Frequency (RF) Transceiver Modules, suitable for a range of applications. They are low cost, easy to integrate, and offer excellent performance at low power levels. The modules have an integrated authentication engine, adjustable duty cycle, and support for several serial data interfaces. Additionally, the module is based on the MRF24J40MA transceiver from Microchip, providing a reliable platform for wireless data communication.

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