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LoRa IoT E32-433T30S UART 433MHZ SX1278 Wireless Transmitter and Receiver RF Module
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SKU: TES-EV00006404
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LoRa IoT E32-433T30S UART 433MHZ SX1278 Wireless Transmitter and Receiver RF Module
The E32-433T30S is a long-range LoRa wireless transceiver module featuring the Semtech SX1278 chipset, operating at 433MHz with 30dBm transmit power and UART serial communication interface. Professional IoT engineers, embedded systems developers, and industrial automation specialists use this module to build reliable long-distance wireless communication networks with minimal power consumption and interference resistance. This RF module solves the critical challenge of establishing stable wireless links over 5+ kilometers in outdoor environments while maintaining low current draw, making it ideal for remote sensor networks, telemetry systems, and IoT deployments where WiFi and cellular coverage are unavailable.
Product Overview
The E32-433T30S is a high-performance LoRa transceiver module built on Semtech's SX1278 baseband processor, which implements the proprietary LoRa modulation technique for extended range communication. The module operates in the 433MHz ISM band, a globally available frequency that offers excellent propagation characteristics for long-distance links. The SX1278 chipset provides a spreading factor range from SF7 to SF12, allowing developers to trade data rate for range depending on application requirements. With 30dBm output power and integrated power amplifier, the E32-433T30S achieves line-of-sight ranges exceeding 5 kilometers in open environments. The module communicates with microcontrollers via a standard UART interface operating at configurable baud rates from 1200 to 115200bps, simplifying integration with Arduino, STM32, Raspberry Pi, and other embedded platforms.
The E32-433T30S features multiple transmission modes including point-to-point communication, broadcast, and semi-duplex networking, enabling flexible deployment architectures for mesh networks and star topologies. The module includes onboard antenna connector with impedance matching for external antennas, reducing design complexity and improving radiation efficiency. Low quiescent current consumption in sleep mode makes this module suitable for battery-powered applications requiring months of operation on AA or 9V batteries. The integrated frequency hopping spread spectrum FHSS capability provides interference mitigation in congested ISM bands, while configurable transmit power levels from 20dBm to 30dBm allow optimization for range versus power consumption tradeoffs.
Key Specifications
| Specification | Details |
| Product Type | LoRa Wireless Transceiver RF Module |
| Brand | Ebyte Electronics |
| 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 |
| Chipset | Semtech SX1278 |
| Operating Frequency | 433MHz ISM Band |
| Transmit Power | 30dBm (1W) maximum, configurable 20-30dBm |
| Communication Range | 5+ kilometers line-of-sight open space |
| Interface | UART serial, configurable 1200-115200 baud |
| Spreading Factor | SF7 to SF12 selectable |
| Supply Voltage | 3.3V to 5.5V DC |
| Current Consumption | Transmit: 120mA, Receive: 10mA, Sleep: 0.5mA |
| Antenna Connector | SMA female with impedance matching |
| Dimensions | 28mm x 28mm x 8mm module size |
Key Features
- Semtech SX1278 LoRa baseband processor delivering 5+ kilometer range with SF12 spreading factor in open environments
- 30dBm transmit power with integrated power amplifier and configurable output levels for range-power optimization
- Standard UART interface supporting 1200 to 115200 baud rates for seamless integration with Arduino, STM32, and Raspberry Pi platforms
- Frequency hopping spread spectrum FHSS capability providing interference mitigation in congested 433MHz ISM band
- Ultra-low sleep mode current consumption of 0.5mA enabling battery-powered deployments lasting months on single charge
- Multiple transmission modes including point-to-point, broadcast, and semi-duplex networking for flexible topology design
- SMA antenna connector with impedance matching reducing design complexity and improving radiation efficiency
- Wide supply voltage range of 3.3V to 5.5V DC accommodating various power source configurations
Applications and Use Cases
- Remote environmental monitoring networks: Deploy temperature, humidity, and air quality sensors across agricultural fields or industrial facilities with wireless links spanning 5+ kilometers without cellular infrastructure
- Smart water management systems: Monitor water tank levels, pipeline pressure, and flow rates in rural areas where grid power and internet connectivity are limited using battery-powered sensor nodes
- Industrial equipment telemetry: Collect vibration, temperature, and operational data from distributed machinery in factories and plants for predictive maintenance without running expensive fiber or wireless network cables
- Emergency alert and disaster communication: Build resilient mesh networks for emergency services and disaster response teams that function independently of cellular networks during infrastructure failures
- Wildlife tracking and environmental research: Transmit location, biometric, and environmental data from remote field sensors across wildlife reserves and research stations with minimal power consumption
- Smart grid and utility monitoring: Monitor electrical distribution transformers, gas meters, and power consumption across dispersed locations in rural electrification projects
How to Use
To integrate the E32-433T30S module, connect the UART TX and RX pins to your microcontroller's serial port, supply 3.3V to 5.5V DC power with at least 500mA capacity, and attach an external antenna to the SMA connector. Configure the module's operating parameters including frequency, spreading factor, transmit power, and UART baud rate using AT commands or configuration mode before deployment. The module supports two operational modes: transparent mode for direct serial data transmission and configuration mode for parameter adjustment. In transparent mode, any data received on the UART input is immediately transmitted over the RF link, and any RF data received is output on the UART port, making it ideal for sensor-to-gateway applications. For point-to-point communication, ensure both modules are configured with identical frequency and spreading factor settings. For mesh or broadcast networks, utilize the module's address and channel configuration features to create multi-hop topologies where intermediate nodes relay data from distant sensors.
Antenna selection significantly impacts communication range and reliability. Use a quarter-wave monopole antenna tuned for 433MHz, typically 16-17cm in length, mounted vertically away from ground planes and conductive objects. For indoor or obstructed environments, consider upgrading to a high-gain directional antenna. Monitor the module's current consumption during operation to estimate battery life for portable deployments. The module draws approximately 120mA during transmission and 10mA during reception, so a 2000mAh battery can support continuous operation for roughly 15 hours. Implement error checking and acknowledgment protocols at the application layer to ensure data integrity, as LoRa modulation trades bandwidth for range and may experience occasional packet loss in noisy environments. Test your complete system over the intended deployment distance before final installation to verify adequate signal strength and data throughput.
Frequently Asked Questions
What is the actual communication range of the E32-433T30S module?
The E32-433T30S achieves 5+ kilometers range in open line-of-sight environments with SF12 spreading factor and 30dBm transmit power. Range varies significantly with spreading factor selection: SF7 provides approximately 2-3 kilometers with faster data rates, while SF12 extends range to 8+ kilometers but reduces throughput to 50-100 bits per second. Obstacles including buildings, trees, and terrain reduce range substantially; expect 500-1500 meters in typical urban or suburban environments with moderate obstructions. Range also depends on antenna quality, mounting height, and receiver sensitivity settings.
How do I configure the E32-433T30S for my specific application?
The module operates in two modes: transparent mode for direct data transmission and configuration mode for parameter adjustment. To enter configuration mode, pull the M0 and M1 pins low during power-up. Once in configuration mode, send AT commands via UART to modify frequency, spreading factor, transmit power, node address, and baud rate. After configuration, restart the module in transparent mode by setting M0 and M1 high. Refer to the detailed AT command documentation to set parameters matching your application requirements. Most applications benefit from SF9 or SF10 spreading factors balancing range and data rate for typical sensor deployments.
Can the E32-433T30S operate on battery power for extended periods?
Yes, the module is specifically designed for battery-powered applications. In sleep mode, current consumption drops to 0.5mA, enabling months of operation on AA batteries if the module transmits only periodically. For continuous operation, expect approximately 15 hours from a 2000mAh battery due to 120mA transmit current and 10mA receive current. Optimize battery life by reducing transmit power to minimum required levels, using higher spreading factors to reduce transmission duration, and implementing duty-cycle limitations where sensors transmit data only at intervals rather than continuously. Many IoT deployments achieve 6-12 month battery life through careful power management and transmission scheduling.
Is the E32-433T30S compatible with Arduino and Raspberry Pi?
Yes, the UART interface makes the E32-433T30S compatible with Arduino, Raspberry Pi, STM32, and all microcontrollers with serial communication capability. For Arduino, connect the module's TX pin to Arduino RX (pin 0) or a software serial pin, and module RX to Arduino TX (pin 1) or another software serial pin. Use 3.3V logic level converters if your Arduino operates at 5V to prevent damage to the module's 3.3V input pins. For Raspberry Pi, connect to the GPIO UART pins (GPIO14 and GPIO15) using appropriate level shifting. Multiple open-source libraries and example sketches are available for both platforms to simplify integration and configuration.
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?
Buy LoRa IoT E32-433T30S UART 433MHZ SX1278 Wireless Transmitter and Receiver RF Module Online in India
Purchase the LoRa IoT E32-433T30S UART 433MHZ SX1278 Wireless Transmitter and Receiver RF Module 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 IoT E32-433T30S UART 433MHZ SX1278 Wireless Transmitter and Receiver RF Module
The E32-433T30S is a long-range LoRa wireless transceiver module featuring the Semtech SX1278 chipset, operating at 433MHz with 30dBm transmit power and UART serial communication interface. Professional IoT engineers, embedded systems developers, and industrial automation specialists use this module to build reliable long-distance wireless communication networks with minimal power consumption and interference resistance. This RF module solves the critical challenge of establishing stable wireless links over 5+ kilometers in outdoor environments while maintaining low current draw, making it ideal for remote sensor networks, telemetry systems, and IoT deployments where WiFi and cellular coverage are unavailable.
Product Overview
The E32-433T30S is a high-performance LoRa transceiver module built on Semtech's SX1278 baseband processor, which implements the proprietary LoRa modulation technique for extended range communication. The module operates in the 433MHz ISM band, a globally available frequency that offers excellent propagation characteristics for long-distance links. The SX1278 chipset provides a spreading factor range from SF7 to SF12, allowing developers to trade data rate for range depending on application requirements. With 30dBm output power and integrated power amplifier, the E32-433T30S achieves line-of-sight ranges exceeding 5 kilometers in open environments. The module communicates with microcontrollers via a standard UART interface operating at configurable baud rates from 1200 to 115200bps, simplifying integration with Arduino, STM32, Raspberry Pi, and other embedded platforms.
The E32-433T30S features multiple transmission modes including point-to-point communication, broadcast, and semi-duplex networking, enabling flexible deployment architectures for mesh networks and star topologies. The module includes onboard antenna connector with impedance matching for external antennas, reducing design complexity and improving radiation efficiency. Low quiescent current consumption in sleep mode makes this module suitable for battery-powered applications requiring months of operation on AA or 9V batteries. The integrated frequency hopping spread spectrum FHSS capability provides interference mitigation in congested ISM bands, while configurable transmit power levels from 20dBm to 30dBm allow optimization for range versus power consumption tradeoffs.
Key Specifications
| Specification | Details |
| Product Type | LoRa Wireless Transceiver RF Module |
| Brand | Ebyte Electronics |
| 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 |
| Chipset | Semtech SX1278 |
| Operating Frequency | 433MHz ISM Band |
| Transmit Power | 30dBm (1W) maximum, configurable 20-30dBm |
| Communication Range | 5+ kilometers line-of-sight open space |
| Interface | UART serial, configurable 1200-115200 baud |
| Spreading Factor | SF7 to SF12 selectable |
| Supply Voltage | 3.3V to 5.5V DC |
| Current Consumption | Transmit: 120mA, Receive: 10mA, Sleep: 0.5mA |
| Antenna Connector | SMA female with impedance matching |
| Dimensions | 28mm x 28mm x 8mm module size |
Key Features
- Semtech SX1278 LoRa baseband processor delivering 5+ kilometer range with SF12 spreading factor in open environments
- 30dBm transmit power with integrated power amplifier and configurable output levels for range-power optimization
- Standard UART interface supporting 1200 to 115200 baud rates for seamless integration with Arduino, STM32, and Raspberry Pi platforms
- Frequency hopping spread spectrum FHSS capability providing interference mitigation in congested 433MHz ISM band
- Ultra-low sleep mode current consumption of 0.5mA enabling battery-powered deployments lasting months on single charge
- Multiple transmission modes including point-to-point, broadcast, and semi-duplex networking for flexible topology design
- SMA antenna connector with impedance matching reducing design complexity and improving radiation efficiency
- Wide supply voltage range of 3.3V to 5.5V DC accommodating various power source configurations
Applications and Use Cases
- Remote environmental monitoring networks: Deploy temperature, humidity, and air quality sensors across agricultural fields or industrial facilities with wireless links spanning 5+ kilometers without cellular infrastructure
- Smart water management systems: Monitor water tank levels, pipeline pressure, and flow rates in rural areas where grid power and internet connectivity are limited using battery-powered sensor nodes
- Industrial equipment telemetry: Collect vibration, temperature, and operational data from distributed machinery in factories and plants for predictive maintenance without running expensive fiber or wireless network cables
- Emergency alert and disaster communication: Build resilient mesh networks for emergency services and disaster response teams that function independently of cellular networks during infrastructure failures
- Wildlife tracking and environmental research: Transmit location, biometric, and environmental data from remote field sensors across wildlife reserves and research stations with minimal power consumption
- Smart grid and utility monitoring: Monitor electrical distribution transformers, gas meters, and power consumption across dispersed locations in rural electrification projects
How to Use
To integrate the E32-433T30S module, connect the UART TX and RX pins to your microcontroller's serial port, supply 3.3V to 5.5V DC power with at least 500mA capacity, and attach an external antenna to the SMA connector. Configure the module's operating parameters including frequency, spreading factor, transmit power, and UART baud rate using AT commands or configuration mode before deployment. The module supports two operational modes: transparent mode for direct serial data transmission and configuration mode for parameter adjustment. In transparent mode, any data received on the UART input is immediately transmitted over the RF link, and any RF data received is output on the UART port, making it ideal for sensor-to-gateway applications. For point-to-point communication, ensure both modules are configured with identical frequency and spreading factor settings. For mesh or broadcast networks, utilize the module's address and channel configuration features to create multi-hop topologies where intermediate nodes relay data from distant sensors.
Antenna selection significantly impacts communication range and reliability. Use a quarter-wave monopole antenna tuned for 433MHz, typically 16-17cm in length, mounted vertically away from ground planes and conductive objects. For indoor or obstructed environments, consider upgrading to a high-gain directional antenna. Monitor the module's current consumption during operation to estimate battery life for portable deployments. The module draws approximately 120mA during transmission and 10mA during reception, so a 2000mAh battery can support continuous operation for roughly 15 hours. Implement error checking and acknowledgment protocols at the application layer to ensure data integrity, as LoRa modulation trades bandwidth for range and may experience occasional packet loss in noisy environments. Test your complete system over the intended deployment distance before final installation to verify adequate signal strength and data throughput.
Frequently Asked Questions
What is the actual communication range of the E32-433T30S module?
The E32-433T30S achieves 5+ kilometers range in open line-of-sight environments with SF12 spreading factor and 30dBm transmit power. Range varies significantly with spreading factor selection: SF7 provides approximately 2-3 kilometers with faster data rates, while SF12 extends range to 8+ kilometers but reduces throughput to 50-100 bits per second. Obstacles including buildings, trees, and terrain reduce range substantially; expect 500-1500 meters in typical urban or suburban environments with moderate obstructions. Range also depends on antenna quality, mounting height, and receiver sensitivity settings.
How do I configure the E32-433T30S for my specific application?
The module operates in two modes: transparent mode for direct data transmission and configuration mode for parameter adjustment. To enter configuration mode, pull the M0 and M1 pins low during power-up. Once in configuration mode, send AT commands via UART to modify frequency, spreading factor, transmit power, node address, and baud rate. After configuration, restart the module in transparent mode by setting M0 and M1 high. Refer to the detailed AT command documentation to set parameters matching your application requirements. Most applications benefit from SF9 or SF10 spreading factors balancing range and data rate for typical sensor deployments.
Can the E32-433T30S operate on battery power for extended periods?
Yes, the module is specifically designed for battery-powered applications. In sleep mode, current consumption drops to 0.5mA, enabling months of operation on AA batteries if the module transmits only periodically. For continuous operation, expect approximately 15 hours from a 2000mAh battery due to 120mA transmit current and 10mA receive current. Optimize battery life by reducing transmit power to minimum required levels, using higher spreading factors to reduce transmission duration, and implementing duty-cycle limitations where sensors transmit data only at intervals rather than continuously. Many IoT deployments achieve 6-12 month battery life through careful power management and transmission scheduling.
Is the E32-433T30S compatible with Arduino and Raspberry Pi?
Yes, the UART interface makes the E32-433T30S compatible with Arduino, Raspberry Pi, STM32, and all microcontrollers with serial communication capability. For Arduino, connect the module's TX pin to Arduino RX (pin 0) or a software serial pin, and module RX to Arduino TX (pin 1) or another software serial pin. Use 3.3V logic level converters if your Arduino operates at 5V to prevent damage to the module's 3.3V input pins. For Raspberry Pi, connect to the GPIO UART pins (GPIO14 and GPIO15) using appropriate level shifting. Multiple open-source libraries and example sketches are available for both platforms to simplify integration and configuration.
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?
Buy LoRa IoT E32-433T30S UART 433MHZ SX1278 Wireless Transmitter and Receiver RF Module Online in India
Purchase the LoRa IoT E32-433T30S UART 433MHZ SX1278 Wireless Transmitter and Receiver RF Module 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.