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LoRa RFM95 Ultra-long Range Transceiver Module 868M frequency
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LoRa RFM95 Ultra-long Range Transceiver Module 868M frequency
The LoRa RFM95 is a high-performance long-range wireless transceiver module operating at 868MHz, designed for IoT applications requiring extended communication distances with minimal power consumption. Professional engineers and IoT developers use this module to build smart city infrastructure, agricultural monitoring systems, and industrial telemetry networks where traditional WiFi and cellular solutions are impractical. It solves the critical challenge of establishing reliable, low-power communication links across kilometers of distance without requiring expensive cellular infrastructure or battery-draining continuous transmission protocols.
Product Overview
The RFM95 employs LoRa (Long Range) modulation technology, a proprietary spread spectrum technique that enables communication at distances up to 15km in open space while consuming minimal power. The module operates on the 868MHz ISM band, making it compliant with European regulations and ideal for European IoT deployments. At its core, the RFM95 uses chirp spread spectrum modulation, which spreads the signal over a wide bandwidth, allowing it to penetrate obstacles and maintain signal integrity even in challenging RF environments with significant path loss.
What distinguishes the RFM95 from conventional RF modules is its exceptional sensitivity of up to -148dBm, combined with a maximum output power of +20dBm, delivering a link budget exceeding 150dB. This makes it suitable for battery-powered remote sensors that need to communicate over several kilometers. The module features SPI interface for microcontroller integration, built-in frequency synthesizer, and programmable spreading factors ranging from SF7 to SF12, allowing developers to trade off between data rate and range based on application requirements. The compact form factor and low operating voltage (1.8V to 3.7V) make it ideal for embedded systems and wearable IoT solutions.
Key Specifications
| Specification | Details |
| Product Type | LoRa RF Transceiver Module |
| Brand | HopeRF |
| 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 |
| Operating Frequency | 868MHz ISM Band |
| Modulation | LoRa Spread Spectrum |
| Receiver Sensitivity | -148dBm (SF12, BW125kHz) |
| Transmit Power | +5dBm to +20dBm (programmable) |
| Spreading Factor | SF7 to SF12 (programmable) |
| Bandwidth Options | 7.8kHz, 10.4kHz, 15.6kHz, 20.8kHz, 31.25kHz, 41.7kHz, 62.5kHz, 125kHz, 250kHz, 500kHz |
| Data Rate | 0.3kbps to 50kbps |
| Interface | SPI (4-wire serial) |
| Operating Voltage | 1.8V to 3.7V |
| Current Consumption (RX) | 10mA typical |
| Current Consumption (TX) | 120mA at +20dBm |
| Sleep Current | 0.2uA |
| Package | 16-pin DIP or SMD variant |
| Temperature Range | -40°C to +85°C |
Key Features
- Ultra-Long Range Communication: Achieves 15km+ line-of-sight range with -148dBm sensitivity, enabling deployment of remote sensors without repeaters in large-scale IoT networks
- Programmable Spreading Factors: SF7 to SF12 allow dynamic adjustment of data rate versus range tradeoff, with SF12 providing maximum range at 0.3kbps and SF7 offering 50kbps at reduced distance
- Extremely Low Power Consumption: Sleep mode draws only 0.2uA, ideal for battery-powered applications running for months or years on AA batteries
- Flexible Bandwidth Configuration: Ten bandwidth options from 7.8kHz to 500kHz enable optimization for specific noise environments and data rate requirements
- SPI Interface Integration: Standard 4-wire SPI protocol allows seamless integration with Arduino, Raspberry Pi, STM32, and other microcontroller platforms
- Built-in Frequency Synthesizer: Accurate frequency control with 61Hz resolution ensures reliable communication in crowded ISM bands
Applications and Use Cases
- Smart Agriculture Monitoring: Deploy soil moisture and temperature sensors across large farmland areas using a single gateway, with LoRa RFM95 providing 10km+ range to collect data from multiple fields without cellular infrastructure
- Industrial Asset Tracking: Track equipment and machinery movement in large manufacturing plants or construction sites where WiFi coverage is unreliable, using the module's penetrating 868MHz signal to maintain connectivity through metal structures
- Smart City Infrastructure: Build distributed environmental monitoring networks for air quality, noise level, and weather data collection across city districts, with the module's low power consumption enabling maintenance-free operation for extended periods
- Water and Gas Meter Reading: Implement automatic meter reading systems where LoRa RFM95 modules in meters communicate with collection gateways up to 15km away, eliminating manual meter reading and enabling real-time consumption monitoring
- Wildlife Tracking and Conservation: Attach lightweight LoRa trackers to animals for long-distance monitoring without frequent battery replacement, leveraging the module's exceptional range and minimal power draw
- Building Automation in Large Facilities: Connect wireless sensors for HVAC, lighting, and occupancy monitoring across sprawling industrial complexes where traditional wired solutions are cost-prohibitive
How to Use
To integrate the RFM95 module into your project, connect the SPI pins (MOSI, MISO, SCK, CS) to your microcontroller, along with the reset pin and optional interrupt pin for event notification. Supply 3.3V power with adequate decoupling capacitors (100nF ceramic and 10uF electrolytic) placed close to the module to ensure stable operation. Attach an appropriate antenna for 868MHz (quarter-wave antenna approximately 86mm long, or use a PCB trace antenna) to the ANT pin for optimal range performance. Initialize the module via SPI by setting the desired frequency, spreading factor, bandwidth, and transmit power using the control registers. Most developers use Arduino libraries like RadioHead or LMIC which handle the low-level register configuration, allowing you to focus on application logic for sending and receiving packets.
For reliable operation, implement error handling with CRC checking and acknowledgment mechanisms, as LoRa does not guarantee delivery like TCP/IP protocols. Configure the spreading factor based on your range requirements: use SF12 for maximum range (15km+) with slow data rates around 0.3kbps, or SF7 for faster communication (50kbps) at shorter ranges around 2-3km. Monitor the module's RSSI (Received Signal Strength Indicator) and SNR (Signal-to-Noise Ratio) values to diagnose link quality issues. For battery-powered applications, utilize the sleep mode to achieve ultra-low current consumption between transmissions, waking the module only when data needs to be sent or received.
Frequently Asked Questions
What is the maximum communication range of the RFM95 module?
The RFM95 can achieve 15km or more in open line-of-sight conditions with optimal antenna placement and SF12 spreading factor. In urban environments with obstacles, typical range is 2-5km depending on terrain, building materials, and antenna quality. The actual range depends on spreading factor, bandwidth, transmit power, receiver sensitivity, and environmental factors. Using SF7 with maximum power reduces range to approximately 2-3km, while SF12 at lower power can still achieve 10km+ in favorable conditions.
Can I use the RFM95 868MHz module in India?
The 868MHz frequency band is primarily allocated for European ISM applications. In India, the ISM band for LoRa applications is 865-867MHz. While the RFM95 868M can technically operate in the Indian band with minor frequency adjustments, you should verify compliance with Indian Wireless Telegraphy Act and obtain necessary approvals from WPC (Wireless Planning Commission). For India-specific applications, consider the RFM95 865M variant or consult with regulatory authorities before deployment.
How do spreading factors affect data rate and range?
Spreading factors range from SF7 to SF12, where each increment doubles the time-on-air and increases range capability. SF7 provides maximum data rate (50kbps) with minimum range (2-3km), while SF12 offers minimum data rate (0.3kbps) with maximum range (15km+). The relationship is inverse: higher spreading factors provide better range and sensitivity but consume more airtime and power. Choose SF7-SF9 for applications requiring faster data transfer over moderate distances, and SF10-SF12 for maximum range applications where data rate is not critical.
What antenna should I use with the RFM95?
For optimal performance at 868MHz, use a quarter-wave monopole antenna approximately 86mm long (calculated as 300MHz / (4 × 868MHz)). Alternatively, use a half-wave dipole antenna at 172mm length. Commercial 868MHz antennas with 2-5dBi gain are readily available. Ensure the antenna is mounted vertically for omnidirectional coverage, keep it away from metal objects and the microcontroller board, and use proper impedance matching with 50-ohm transmission lines for maximum power transfer. PCB trace antennas designed for 868MHz also work well for compact applications.
How much power does the RFM95 consume?
The RFM95 is extremely power-efficient: sleep mode consumes only 0.2uA, receive mode draws approximately 10mA, and transmit mode at maximum power (+20dBm) draws around 120mA. For battery-powered applications, the module can operate for months on standard AA batteries by spending most time in sleep mode and transmitting only brief packets periodically. A typical sensor sending 50-byte packets every 10 minutes would consume less than 5mAh per day, enabling multi-year operation on a 2000mAh battery.
Is the RFM95 compatible with Arduino and Raspberry Pi?
Yes, the RFM95 is fully compatible with Arduino, Raspberry Pi, and other SPI-capable microcontrollers. The standard Radio
Buy LoRa RFM95 Ultra-long Range Transceiver Module 868M frequency Online in India
Purchase the LoRa RFM95 Ultra-long Range Transceiver Module 868M frequency 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.
Our team in Bengaluru is available 24/7 to support your journey from product selection to project completion.
LoRa RFM95 Ultra-long Range Transceiver Module 868M frequency
The LoRa RFM95 is a high-performance long-range wireless transceiver module operating at 868MHz, designed for IoT applications requiring extended communication distances with minimal power consumption. Professional engineers and IoT developers use this module to build smart city infrastructure, agricultural monitoring systems, and industrial telemetry networks where traditional WiFi and cellular solutions are impractical. It solves the critical challenge of establishing reliable, low-power communication links across kilometers of distance without requiring expensive cellular infrastructure or battery-draining continuous transmission protocols.
Product Overview
The RFM95 employs LoRa (Long Range) modulation technology, a proprietary spread spectrum technique that enables communication at distances up to 15km in open space while consuming minimal power. The module operates on the 868MHz ISM band, making it compliant with European regulations and ideal for European IoT deployments. At its core, the RFM95 uses chirp spread spectrum modulation, which spreads the signal over a wide bandwidth, allowing it to penetrate obstacles and maintain signal integrity even in challenging RF environments with significant path loss.
What distinguishes the RFM95 from conventional RF modules is its exceptional sensitivity of up to -148dBm, combined with a maximum output power of +20dBm, delivering a link budget exceeding 150dB. This makes it suitable for battery-powered remote sensors that need to communicate over several kilometers. The module features SPI interface for microcontroller integration, built-in frequency synthesizer, and programmable spreading factors ranging from SF7 to SF12, allowing developers to trade off between data rate and range based on application requirements. The compact form factor and low operating voltage (1.8V to 3.7V) make it ideal for embedded systems and wearable IoT solutions.
Key Specifications
| Specification | Details |
| Product Type | LoRa RF Transceiver Module |
| Brand | HopeRF |
| 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 |
| Operating Frequency | 868MHz ISM Band |
| Modulation | LoRa Spread Spectrum |
| Receiver Sensitivity | -148dBm (SF12, BW125kHz) |
| Transmit Power | +5dBm to +20dBm (programmable) |
| Spreading Factor | SF7 to SF12 (programmable) |
| Bandwidth Options | 7.8kHz, 10.4kHz, 15.6kHz, 20.8kHz, 31.25kHz, 41.7kHz, 62.5kHz, 125kHz, 250kHz, 500kHz |
| Data Rate | 0.3kbps to 50kbps |
| Interface | SPI (4-wire serial) |
| Operating Voltage | 1.8V to 3.7V |
| Current Consumption (RX) | 10mA typical |
| Current Consumption (TX) | 120mA at +20dBm |
| Sleep Current | 0.2uA |
| Package | 16-pin DIP or SMD variant |
| Temperature Range | -40°C to +85°C |
Key Features
- Ultra-Long Range Communication: Achieves 15km+ line-of-sight range with -148dBm sensitivity, enabling deployment of remote sensors without repeaters in large-scale IoT networks
- Programmable Spreading Factors: SF7 to SF12 allow dynamic adjustment of data rate versus range tradeoff, with SF12 providing maximum range at 0.3kbps and SF7 offering 50kbps at reduced distance
- Extremely Low Power Consumption: Sleep mode draws only 0.2uA, ideal for battery-powered applications running for months or years on AA batteries
- Flexible Bandwidth Configuration: Ten bandwidth options from 7.8kHz to 500kHz enable optimization for specific noise environments and data rate requirements
- SPI Interface Integration: Standard 4-wire SPI protocol allows seamless integration with Arduino, Raspberry Pi, STM32, and other microcontroller platforms
- Built-in Frequency Synthesizer: Accurate frequency control with 61Hz resolution ensures reliable communication in crowded ISM bands
Applications and Use Cases
- Smart Agriculture Monitoring: Deploy soil moisture and temperature sensors across large farmland areas using a single gateway, with LoRa RFM95 providing 10km+ range to collect data from multiple fields without cellular infrastructure
- Industrial Asset Tracking: Track equipment and machinery movement in large manufacturing plants or construction sites where WiFi coverage is unreliable, using the module's penetrating 868MHz signal to maintain connectivity through metal structures
- Smart City Infrastructure: Build distributed environmental monitoring networks for air quality, noise level, and weather data collection across city districts, with the module's low power consumption enabling maintenance-free operation for extended periods
- Water and Gas Meter Reading: Implement automatic meter reading systems where LoRa RFM95 modules in meters communicate with collection gateways up to 15km away, eliminating manual meter reading and enabling real-time consumption monitoring
- Wildlife Tracking and Conservation: Attach lightweight LoRa trackers to animals for long-distance monitoring without frequent battery replacement, leveraging the module's exceptional range and minimal power draw
- Building Automation in Large Facilities: Connect wireless sensors for HVAC, lighting, and occupancy monitoring across sprawling industrial complexes where traditional wired solutions are cost-prohibitive
How to Use
To integrate the RFM95 module into your project, connect the SPI pins (MOSI, MISO, SCK, CS) to your microcontroller, along with the reset pin and optional interrupt pin for event notification. Supply 3.3V power with adequate decoupling capacitors (100nF ceramic and 10uF electrolytic) placed close to the module to ensure stable operation. Attach an appropriate antenna for 868MHz (quarter-wave antenna approximately 86mm long, or use a PCB trace antenna) to the ANT pin for optimal range performance. Initialize the module via SPI by setting the desired frequency, spreading factor, bandwidth, and transmit power using the control registers. Most developers use Arduino libraries like RadioHead or LMIC which handle the low-level register configuration, allowing you to focus on application logic for sending and receiving packets.
For reliable operation, implement error handling with CRC checking and acknowledgment mechanisms, as LoRa does not guarantee delivery like TCP/IP protocols. Configure the spreading factor based on your range requirements: use SF12 for maximum range (15km+) with slow data rates around 0.3kbps, or SF7 for faster communication (50kbps) at shorter ranges around 2-3km. Monitor the module's RSSI (Received Signal Strength Indicator) and SNR (Signal-to-Noise Ratio) values to diagnose link quality issues. For battery-powered applications, utilize the sleep mode to achieve ultra-low current consumption between transmissions, waking the module only when data needs to be sent or received.
Frequently Asked Questions
What is the maximum communication range of the RFM95 module?
The RFM95 can achieve 15km or more in open line-of-sight conditions with optimal antenna placement and SF12 spreading factor. In urban environments with obstacles, typical range is 2-5km depending on terrain, building materials, and antenna quality. The actual range depends on spreading factor, bandwidth, transmit power, receiver sensitivity, and environmental factors. Using SF7 with maximum power reduces range to approximately 2-3km, while SF12 at lower power can still achieve 10km+ in favorable conditions.
Can I use the RFM95 868MHz module in India?
The 868MHz frequency band is primarily allocated for European ISM applications. In India, the ISM band for LoRa applications is 865-867MHz. While the RFM95 868M can technically operate in the Indian band with minor frequency adjustments, you should verify compliance with Indian Wireless Telegraphy Act and obtain necessary approvals from WPC (Wireless Planning Commission). For India-specific applications, consider the RFM95 865M variant or consult with regulatory authorities before deployment.
How do spreading factors affect data rate and range?
Spreading factors range from SF7 to SF12, where each increment doubles the time-on-air and increases range capability. SF7 provides maximum data rate (50kbps) with minimum range (2-3km), while SF12 offers minimum data rate (0.3kbps) with maximum range (15km+). The relationship is inverse: higher spreading factors provide better range and sensitivity but consume more airtime and power. Choose SF7-SF9 for applications requiring faster data transfer over moderate distances, and SF10-SF12 for maximum range applications where data rate is not critical.
What antenna should I use with the RFM95?
For optimal performance at 868MHz, use a quarter-wave monopole antenna approximately 86mm long (calculated as 300MHz / (4 × 868MHz)). Alternatively, use a half-wave dipole antenna at 172mm length. Commercial 868MHz antennas with 2-5dBi gain are readily available. Ensure the antenna is mounted vertically for omnidirectional coverage, keep it away from metal objects and the microcontroller board, and use proper impedance matching with 50-ohm transmission lines for maximum power transfer. PCB trace antennas designed for 868MHz also work well for compact applications.
How much power does the RFM95 consume?
The RFM95 is extremely power-efficient: sleep mode consumes only 0.2uA, receive mode draws approximately 10mA, and transmit mode at maximum power (+20dBm) draws around 120mA. For battery-powered applications, the module can operate for months on standard AA batteries by spending most time in sleep mode and transmitting only brief packets periodically. A typical sensor sending 50-byte packets every 10 minutes would consume less than 5mAh per day, enabling multi-year operation on a 2000mAh battery.
Is the RFM95 compatible with Arduino and Raspberry Pi?
Yes, the RFM95 is fully compatible with Arduino, Raspberry Pi, and other SPI-capable microcontrollers. The standard Radio
Buy LoRa RFM95 Ultra-long Range Transceiver Module 868M frequency Online in India
Purchase the LoRa RFM95 Ultra-long Range Transceiver Module 868M frequency 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.
Our team in Bengaluru is available 24/7 to support your journey from product selection to project completion.