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MICROCHIP RN4870U-V/RM118 BLUETOOTH MODULE, BLE 4.2
The MICROCHIP RN4870U-V/RM118 is a compact Bluetooth Low Energy 4.2 module engineered for wireless IoT applications, wearables, and embedded systems requiring ultra-low power consumption. Professional electronics engineers, IoT developers, and embedded systems designers rely on this module to establish reliable short-range wireless connectivity in battery-powered applications. This module solves the critical challenge of integrating certified Bluetooth 4.2 functionality into compact form factors while maintaining exceptional power efficiency and reducing time-to-market for connected device development.
Product Overview
The RN4870U-V/RM118 is a fully integrated Bluetooth Low Energy 4.2 module that combines a high-performance RF transceiver, baseband processor, and complete protocol stack in a single 24-pin surface-mount package. The module operates on a 3.3V supply and implements Microchip's proprietary power management architecture, achieving sub-microamp sleep currents and optimized transmission power profiles. The integrated antenna design eliminates the need for external RF components, simplifying PCB layout and reducing bill-of-materials costs. Advanced features include configurable transmit power up to 4 dBm, support for multiple concurrent connections, and firmware-based security implementation with AES-128 encryption capabilities.
This module excels in applications requiring extended battery life, offering typical operating currents of 8-12 mA during active transmission and sub-1 microamp standby consumption. The RN4870U-V/RM118 supports both central and peripheral roles, enabling flexible network topologies for mesh networking, point-to-point communication, and master-slave configurations. The UART interface provides straightforward integration with microcontrollers, while the firmware supports transparent data mode for rapid prototyping. Microchip's comprehensive development ecosystem includes reference designs, evaluation boards, and extensive documentation, making this module ideal for rapid product development cycles.
Key Specifications
| Specification | Details |
| Product Type | Bluetooth Low Energy 4.2 Module |
| Brand | Microchip Technology |
| Origin | Original/Authentic |
| Warranty | 7 days on manufacturing defects |
| Shipping | 1-5 days from Bengaluru |
| Delivery | 7-8 days across India |
| Support | 24/7 via Email and WhatsApp |
| Bluetooth Version | Bluetooth 4.2 Low Energy |
| Operating Voltage | 3.3V DC |
| Package Type | 24-pin QFN Surface Mount |
| Transmit Power | Configurable up to 4 dBm |
| Operating Current | 8-12 mA (active), less than 1 microamp (sleep) |
| Interface | UART, GPIO, SPI |
| Range | Up to 100 meters in open space |
| Operating Temperature | -40 to 85 degrees Celsius |
Key Features
- Bluetooth 4.2 Low Energy certified module with integrated RF transceiver and complete protocol stack for rapid wireless integration
- Ultra-low power consumption with sub-microamp sleep mode enabling multi-year battery life in coin-cell powered applications
- Integrated antenna design with optimized impedance matching eliminating external RF components and reducing PCB complexity
- Flexible role support for both central and peripheral operation enabling master-slave, point-to-point, and mesh network topologies
- UART interface with configurable baud rates simplifying integration with 8-bit and 32-bit microcontroller platforms
- AES-128 encryption and authentication support for secure wireless communication in medical and IoT applications
- Configurable transmit power levels from -20 dBm to 4 dBm optimizing range versus power consumption tradeoffs
- Multiple concurrent connection support enabling complex multi-node wireless network architectures
Applications and Use Cases
- Wearable fitness trackers and health monitoring devices requiring extended battery life and compact form factor with real-time data transmission to smartphones
- Industrial IoT sensor nodes for temperature, humidity, and pressure monitoring in remote locations where battery replacement intervals must exceed 12 months
- Smart home automation devices including wireless door locks, occupancy sensors, and lighting controllers requiring reliable mesh network connectivity
- Medical alert systems and personal emergency response devices requiring certified Bluetooth connectivity with AES-128 encryption for HIPAA compliance
- Asset tracking systems for inventory management in warehouses and logistics using BLE beacons with extended transmission range
- Wireless remote controls and HID devices for consumer electronics requiring minimal latency and power consumption
How to Use
The RN4870U-V/RM118 module integrates into your embedded system via a UART serial interface operating at 115200 baud by default. Begin by connecting the module's power supply pins to a clean 3.3V regulated source with 10 microfarad bulk capacitance and 0.1 microfarad bypass capacitors placed within 5mm of the supply pins. Route the UART TX and RX lines to your microcontroller with appropriate level shifting if your processor operates at 5V logic levels. The module enters command mode through the UART interface, allowing configuration of device name, transmit power, security parameters, and connection behavior via ASCII command strings. Load the provided firmware image using Microchip's programming tools or evaluate the module using transparent data mode for immediate wireless communication testing.
For optimal performance, implement a reset circuit using the module's reset pin with a 100 millisecond power-on delay to ensure stable initialization. Place the antenna trace away from high-current signal traces and ground planes to maintain RF performance. Configure GPIO pins for status indication, allowing your application to monitor connection state and power management events. Test your application with Microchip's BLE mobile application or third-party BLE scanning tools to verify advertisement packets and connection establishment. Implement proper power management by transitioning the module to sleep mode during idle periods, reducing average current consumption by up to 99 percent in battery-powered applications.
Frequently Asked Questions
What is the maximum transmission range of the RN4870U-V/RM118 module?
The module achieves approximately 100 meters line-of-sight range in open space at maximum transmit power of 4 dBm. Actual range depends on antenna orientation, environmental obstacles, interference sources, and receiver sensitivity. In typical indoor environments with walls and obstacles, expect 20-30 meters effective range. The configurable transmit power allows reduction to -20 dBm for short-range applications, proportionally reducing range to conserve power.
How do I configure the module for my specific application requirements?
The RN4870U-V/RM118 supports configuration through ASCII command strings sent via the UART interface. Commands control device name, transmit power, security settings, connection parameters, and GPIO behavior. Enter command mode by asserting the CMD pin high, then send configuration commands followed by carriage return characters. Store configuration in non-volatile memory using the SAVE command to persist settings across power cycles. Microchip provides comprehensive command documentation and example firmware demonstrating all configuration options.
What power supply requirements and filtering are necessary for reliable operation?
The module requires a clean 3.3V regulated power supply capable of delivering 50 milliamps peak current during RF transmission. Implement power supply filtering with a 10 microfarad electrolytic capacitor for bulk energy storage and a 0.1 microfarad ceramic capacitor for high-frequency noise suppression, both placed within 5mm of the module's power pins. Use a dedicated voltage regulator with at least 500 milliamp capacity to avoid voltage sag during transmission peaks. Route power and ground traces with minimum impedance, using multiple vias to connect to ground planes.
Does the module support encryption and secure communication?
Yes, the RN4870U-V/RM118 implements AES-128 encryption and authentication protocols compliant with Bluetooth 4.2 security specifications. The module supports pairing with bonding, allowing secure connection establishment and encrypted data transmission. Configure security parameters through firmware commands to enable authentication, encryption, or both depending on application requirements. The module handles encryption transparently at the link layer, allowing your application to transmit unencrypted data through the UART interface while the module automatically encrypts wireless transmission.
When will I receive my order?
Orders are dispatched within 1-5 business days from our Bengaluru warehouse. Delivery takes 7-8 days to most locations across India.
What is your return and warranty policy?
We offer a 7-day return policy on manufacturing defects only. Contact support within 7 days of receipt for free replacement or full refund. Not applicable for user damage or misuse.
Are bulk discounts available?
Yes, wholesale pricing for orders of 10 or more units. Contact our sales team via WhatsApp or email for a customized bulk quote.
Why Buy from The Engineer Store
- Genuine Products: Sourced directly from authorized distributors with authentication
- Expert Team: Our technical team validates every product before listing
- Fast Shipping: Dispatched within 1-5 days from our Bengaluru warehouse
- Pan-India Delivery: 7-8 days to Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata
- Payment Options: COD, UPI, credit/debit cards, net banking, EMI available
- Technical Support: 24/7 expert guidance via email and WhatsApp
- Returns: 7-day return policy on manufacturing defects only
Buy MICROCHIP RN4870U-V/RM118 BLUETOOTH MODULE, BLE 4.2 Online in India
Purchase the MICROCHIP RN4870U-V/RM118 BLUETOOTH MODULE, BLE 4.2 online at The Engineer Store, India's trusted source for genuine electronics. We deliver across Bengaluru, Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata, Ahmedabad, Jaipur, and Surat. Get the best price on MICROCHIP RN4870U-V/RM118 BLUETOOTH MODULE, BLE 4.2 with fast shipping and expert support.
Our team in Bengaluru is available 24/7 to support your journey from product selection to project completion.
MICROCHIP RN4870U-V/RM118 BLUETOOTH MODULE, BLE 4.2
The MICROCHIP RN4870U-V/RM118 is a compact Bluetooth Low Energy 4.2 module engineered for wireless IoT applications, wearables, and embedded systems requiring ultra-low power consumption. Professional electronics engineers, IoT developers, and embedded systems designers rely on this module to establish reliable short-range wireless connectivity in battery-powered applications. This module solves the critical challenge of integrating certified Bluetooth 4.2 functionality into compact form factors while maintaining exceptional power efficiency and reducing time-to-market for connected device development.
Product Overview
The RN4870U-V/RM118 is a fully integrated Bluetooth Low Energy 4.2 module that combines a high-performance RF transceiver, baseband processor, and complete protocol stack in a single 24-pin surface-mount package. The module operates on a 3.3V supply and implements Microchip's proprietary power management architecture, achieving sub-microamp sleep currents and optimized transmission power profiles. The integrated antenna design eliminates the need for external RF components, simplifying PCB layout and reducing bill-of-materials costs. Advanced features include configurable transmit power up to 4 dBm, support for multiple concurrent connections, and firmware-based security implementation with AES-128 encryption capabilities.
This module excels in applications requiring extended battery life, offering typical operating currents of 8-12 mA during active transmission and sub-1 microamp standby consumption. The RN4870U-V/RM118 supports both central and peripheral roles, enabling flexible network topologies for mesh networking, point-to-point communication, and master-slave configurations. The UART interface provides straightforward integration with microcontrollers, while the firmware supports transparent data mode for rapid prototyping. Microchip's comprehensive development ecosystem includes reference designs, evaluation boards, and extensive documentation, making this module ideal for rapid product development cycles.
Key Specifications
| Specification | Details |
| Product Type | Bluetooth Low Energy 4.2 Module |
| Brand | Microchip Technology |
| Origin | Original/Authentic |
| Warranty | 7 days on manufacturing defects |
| Shipping | 1-5 days from Bengaluru |
| Delivery | 7-8 days across India |
| Support | 24/7 via Email and WhatsApp |
| Bluetooth Version | Bluetooth 4.2 Low Energy |
| Operating Voltage | 3.3V DC |
| Package Type | 24-pin QFN Surface Mount |
| Transmit Power | Configurable up to 4 dBm |
| Operating Current | 8-12 mA (active), less than 1 microamp (sleep) |
| Interface | UART, GPIO, SPI |
| Range | Up to 100 meters in open space |
| Operating Temperature | -40 to 85 degrees Celsius |
Key Features
- Bluetooth 4.2 Low Energy certified module with integrated RF transceiver and complete protocol stack for rapid wireless integration
- Ultra-low power consumption with sub-microamp sleep mode enabling multi-year battery life in coin-cell powered applications
- Integrated antenna design with optimized impedance matching eliminating external RF components and reducing PCB complexity
- Flexible role support for both central and peripheral operation enabling master-slave, point-to-point, and mesh network topologies
- UART interface with configurable baud rates simplifying integration with 8-bit and 32-bit microcontroller platforms
- AES-128 encryption and authentication support for secure wireless communication in medical and IoT applications
- Configurable transmit power levels from -20 dBm to 4 dBm optimizing range versus power consumption tradeoffs
- Multiple concurrent connection support enabling complex multi-node wireless network architectures
Applications and Use Cases
- Wearable fitness trackers and health monitoring devices requiring extended battery life and compact form factor with real-time data transmission to smartphones
- Industrial IoT sensor nodes for temperature, humidity, and pressure monitoring in remote locations where battery replacement intervals must exceed 12 months
- Smart home automation devices including wireless door locks, occupancy sensors, and lighting controllers requiring reliable mesh network connectivity
- Medical alert systems and personal emergency response devices requiring certified Bluetooth connectivity with AES-128 encryption for HIPAA compliance
- Asset tracking systems for inventory management in warehouses and logistics using BLE beacons with extended transmission range
- Wireless remote controls and HID devices for consumer electronics requiring minimal latency and power consumption
How to Use
The RN4870U-V/RM118 module integrates into your embedded system via a UART serial interface operating at 115200 baud by default. Begin by connecting the module's power supply pins to a clean 3.3V regulated source with 10 microfarad bulk capacitance and 0.1 microfarad bypass capacitors placed within 5mm of the supply pins. Route the UART TX and RX lines to your microcontroller with appropriate level shifting if your processor operates at 5V logic levels. The module enters command mode through the UART interface, allowing configuration of device name, transmit power, security parameters, and connection behavior via ASCII command strings. Load the provided firmware image using Microchip's programming tools or evaluate the module using transparent data mode for immediate wireless communication testing.
For optimal performance, implement a reset circuit using the module's reset pin with a 100 millisecond power-on delay to ensure stable initialization. Place the antenna trace away from high-current signal traces and ground planes to maintain RF performance. Configure GPIO pins for status indication, allowing your application to monitor connection state and power management events. Test your application with Microchip's BLE mobile application or third-party BLE scanning tools to verify advertisement packets and connection establishment. Implement proper power management by transitioning the module to sleep mode during idle periods, reducing average current consumption by up to 99 percent in battery-powered applications.
Frequently Asked Questions
What is the maximum transmission range of the RN4870U-V/RM118 module?
The module achieves approximately 100 meters line-of-sight range in open space at maximum transmit power of 4 dBm. Actual range depends on antenna orientation, environmental obstacles, interference sources, and receiver sensitivity. In typical indoor environments with walls and obstacles, expect 20-30 meters effective range. The configurable transmit power allows reduction to -20 dBm for short-range applications, proportionally reducing range to conserve power.
How do I configure the module for my specific application requirements?
The RN4870U-V/RM118 supports configuration through ASCII command strings sent via the UART interface. Commands control device name, transmit power, security settings, connection parameters, and GPIO behavior. Enter command mode by asserting the CMD pin high, then send configuration commands followed by carriage return characters. Store configuration in non-volatile memory using the SAVE command to persist settings across power cycles. Microchip provides comprehensive command documentation and example firmware demonstrating all configuration options.
What power supply requirements and filtering are necessary for reliable operation?
The module requires a clean 3.3V regulated power supply capable of delivering 50 milliamps peak current during RF transmission. Implement power supply filtering with a 10 microfarad electrolytic capacitor for bulk energy storage and a 0.1 microfarad ceramic capacitor for high-frequency noise suppression, both placed within 5mm of the module's power pins. Use a dedicated voltage regulator with at least 500 milliamp capacity to avoid voltage sag during transmission peaks. Route power and ground traces with minimum impedance, using multiple vias to connect to ground planes.
Does the module support encryption and secure communication?
Yes, the RN4870U-V/RM118 implements AES-128 encryption and authentication protocols compliant with Bluetooth 4.2 security specifications. The module supports pairing with bonding, allowing secure connection establishment and encrypted data transmission. Configure security parameters through firmware commands to enable authentication, encryption, or both depending on application requirements. The module handles encryption transparently at the link layer, allowing your application to transmit unencrypted data through the UART interface while the module automatically encrypts wireless transmission.
When will I receive my order?
Orders are dispatched within 1-5 business days from our Bengaluru warehouse. Delivery takes 7-8 days to most locations across India.
What is your return and warranty policy?
We offer a 7-day return policy on manufacturing defects only. Contact support within 7 days of receipt for free replacement or full refund. Not applicable for user damage or misuse.
Are bulk discounts available?
Yes, wholesale pricing for orders of 10 or more units. Contact our sales team via WhatsApp or email for a customized bulk quote.
Why Buy from The Engineer Store
- Genuine Products: Sourced directly from authorized distributors with authentication
- Expert Team: Our technical team validates every product before listing
- Fast Shipping: Dispatched within 1-5 days from our Bengaluru warehouse
- Pan-India Delivery: 7-8 days to Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata
- Payment Options: COD, UPI, credit/debit cards, net banking, EMI available
- Technical Support: 24/7 expert guidance via email and WhatsApp
- Returns: 7-day return policy on manufacturing defects only
Buy MICROCHIP RN4870U-V/RM118 BLUETOOTH MODULE, BLE 4.2 Online in India
Purchase the MICROCHIP RN4870U-V/RM118 BLUETOOTH MODULE, BLE 4.2 online at The Engineer Store, India's trusted source for genuine electronics. We deliver across Bengaluru, Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata, Ahmedabad, Jaipur, and Surat. Get the best price on MICROCHIP RN4870U-V/RM118 BLUETOOTH MODULE, BLE 4.2 with fast shipping and expert support.
Our team in Bengaluru is available 24/7 to support your journey from product selection to project completion.