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ESP32 LoRa SX1278 0.96 Inch Blue OLED Display BT WiFi Module for Arduino
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ESP32 LoRa SX1278 0.96 Inch Blue OLED Display BT WiFi Module for Arduino
The ESP32 LoRa SX1278 module is a powerful microcontroller development board combining WiFi, Bluetooth, and long-range LoRa communication capabilities with an integrated 0.96-inch blue OLED display for real-time data visualization. Professional IoT engineers, embedded systems developers, and Arduino enthusiasts use this module to build connected devices requiring extended wireless range, low power consumption, and local data display without additional components. This product solves the critical challenge of integrating multiple wireless protocols and visual feedback into a single compact module, eliminating the need for separate WiFi modules, LoRa transceivers, and display shields.
Product Overview
The ESP32 LoRa SX1278 module represents a sophisticated integration of three essential wireless technologies on a single platform. The ESP32 microcontroller operates at 240 MHz dual-core processing power with 520 KB RAM, providing sufficient computational resources for complex IoT applications. The SX1278 LoRa transceiver operates in the 433 MHz or 868/915 MHz frequency bands, delivering communication range up to 10 kilometers in open space with excellent penetration through obstacles. The integrated 0.96-inch blue OLED display with 128x64 pixel resolution provides real-time status monitoring, sensor readings, and system diagnostics without requiring external display modules or additional GPIO pins beyond the I2C interface.
This module excels in applications requiring simultaneous WiFi connectivity for cloud integration, Bluetooth for smartphone pairing, and LoRa for long-range mesh networking. The SX1278 transceiver uses spread spectrum modulation with configurable spreading factors (SF7-SF12), enabling trade-offs between range and data rate. The OLED display operates at 3.3V with I2C communication, consuming minimal power while providing crisp monochrome visualization. The entire module is designed for Arduino IDE compatibility, supporting standard libraries and sketch-based programming, making it accessible to developers of all skill levels while maintaining professional-grade capabilities.
Key Specifications
| Specification | Details |
| Product Type | ESP32 LoRa WiFi Bluetooth Module with OLED Display |
| Microcontroller | ESP32 Dual-Core 240 MHz with 520 KB RAM |
| LoRa Transceiver | Semtech SX1278, 433/868/915 MHz frequency bands |
| LoRa Range | Up to 10 km in open space with SF12 |
| Display | 0.96 inch Blue OLED, 128x64 pixels, I2C interface |
| Wireless Protocols | WiFi 802.11 b/g/n, Bluetooth 4.2 BLE, LoRa |
| GPIO Pins | 34 total pins with ADC, SPI, I2C, UART support |
| Operating Voltage | 3.3V with integrated voltage regulator |
| Power Consumption | 80 mA typical operation, 10 uA deep sleep mode |
| 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 |
Key Features
- Dual-core ESP32 processor at 240 MHz with 520 KB SRAM enabling complex algorithm execution and real-time data processing without external computation modules
- Integrated SX1278 LoRa transceiver supporting spreading factors SF7 through SF12 for flexible range-to-data-rate optimization in mesh networking topologies
- 0.96-inch blue OLED display with 128x64 resolution and I2C interface providing instant visual feedback for sensor readings, connection status, and system diagnostics
- Triple wireless connectivity with simultaneous WiFi 802.11b/g/n, Bluetooth 4.2 BLE, and LoRa enabling hybrid cloud-local-mesh network architectures
- 34 GPIO pins with integrated ADC, SPI, I2C, and UART interfaces supporting direct sensor integration without additional breakout boards
- Ultra-low power deep sleep mode consuming only 10 microamps, ideal for battery-powered remote monitoring and IoT edge devices
Applications and Use Cases
- Remote environmental monitoring stations collecting temperature, humidity, and air quality data via LoRa mesh networks with real-time OLED display and cloud synchronization via WiFi
- Smart agriculture IoT systems tracking soil moisture, light intensity, and plant health across distributed farm zones with LoRa long-range connectivity and smartphone control via Bluetooth
- Industrial asset tracking and predictive maintenance where devices transmit GPS coordinates and sensor telemetry through LoRa gateways while displaying local status on integrated OLED screens
- Home automation mesh networks creating self-healing topologies using LoRa for room-to-room communication while maintaining WiFi bridge connectivity and Bluetooth smartphone interface
- Portable weather stations and environmental data loggers with autonomous operation using LoRa for data transmission to central servers and OLED display for field technician visibility
How to Use
Begin by installing the ESP32 board package in Arduino IDE through the Boards Manager, then add the LoRa library and Adafruit SSD1306 OLED library via the Library Manager. Connect your development computer to the module via USB-C cable and select the appropriate COM port and ESP32 board variant. Initialize the SX1278 LoRa transceiver with your target frequency band (433, 868, or 915 MHz), spreading factor, and bandwidth parameters in your sketch setup function. Configure the I2C OLED display with address 0x3C and initialize it to display boot messages, connection status, and real-time sensor data.
For LoRa communication, implement packet transmission using the LoRa.beginPacket() function, write your payload data, and call LoRa.endPacket() to transmit. On the receiving end, continuously check LoRa.parsePacket() in your main loop to detect incoming messages and read them byte-by-byte using LoRa.read(). Update your OLED display within the main loop to show WiFi connection status, LoRa signal strength (RSSI), received packet count, and sensor readings. Utilize the deep sleep functionality with ESP.deepSleep() for battery-powered applications, waking the device periodically via external interrupt or internal timer to conserve power between transmission cycles.
Frequently Asked Questions
What is the maximum LoRa communication range achievable with this module?
The SX1278 transceiver achieves approximately 10 kilometers range in open space line-of-sight conditions using spreading factor SF12 with 125 kHz bandwidth. Real-world range depends on antenna quality, environmental obstacles, and interference. Urban environments typically yield 2-5 km range, while rural areas with clear line-of-sight can exceed 8 km. Using lower spreading factors (SF7-SF9) reduces range to 1-3 km but increases data rate for applications requiring faster transmission. Antenna type significantly impacts performance; upgrade from the standard PCB antenna to an external 5 dBi LoRa antenna to achieve maximum range.
Can I use WiFi, Bluetooth, and LoRa simultaneously on this module?
Yes, the ESP32 architecture supports concurrent operation of all three wireless protocols through intelligent time-division multiplexing. However, simultaneous high-bandwidth usage (such as WiFi file transfer while transmitting LoRa packets) may cause performance degradation. For optimal results, implement application logic that prioritizes critical LoRa transmissions during WiFi idle periods, or use LoRa for low-bandwidth telemetry while WiFi handles bulk data transfers. The module can maintain WiFi connection, accept Bluetooth commands, and transmit LoRa packets in sequence without requiring manual switching between protocols.
How do I display custom graphics and sensor data on the 0.96-inch OLED screen?
The integrated OLED uses the SSD1306 controller accessible via I2C address 0x3C. Use the Adafruit SSD1306 library to initialize the display with Adafruit_SSD1306 display(128, 64, &Wire, -1). Draw text with display.println() and display.print() functions, create graphics using display.drawPixel(), display.drawLine(), and display.drawRect() functions. Update the display by calling display.display() after drawing operations. For sensor integration, read analog values from ADC pins using analogRead(), convert to physical units, format as strings, and display on the OLED. The display supports multiple font sizes and can refresh at 60+ Hz for real-time animations and data visualization.
What battery capacity is recommended for long-term autonomous operation?
For continuous operation with WiFi active, use a 5000 mAh lithium-ion battery or larger. For LoRa-only applications with deep sleep between transmissions, a 2000 mAh battery can operate for weeks depending on transmission interval. Calculate power consumption as: Active current (80 mA) × transmission time + Sleep current (10 uA) × idle time. For example, transmitting 100 bytes every 10 minutes with 1-second transmission time consumes approximately 0.13 mA average current, extending battery life to 15,000 hours (625 days) with a 2000 mAh battery. Implement battery voltage monitoring using ADC pin connected to a voltage divider circuit to trigger low-battery alerts on the OLED display.
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
Buy ESP32 LoRa SX1278 0.96 Inch Blue OLED Display BT WiFi Module for Arduino Online in India
Purchase the ESP32 LoRa SX1278 0.96 Inch Blue OLED Display BT WiFi Module for Arduino 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.
ESP32 LoRa SX1278 0.96 Inch Blue OLED Display BT WiFi Module for Arduino
The ESP32 LoRa SX1278 module is a powerful microcontroller development board combining WiFi, Bluetooth, and long-range LoRa communication capabilities with an integrated 0.96-inch blue OLED display for real-time data visualization. Professional IoT engineers, embedded systems developers, and Arduino enthusiasts use this module to build connected devices requiring extended wireless range, low power consumption, and local data display without additional components. This product solves the critical challenge of integrating multiple wireless protocols and visual feedback into a single compact module, eliminating the need for separate WiFi modules, LoRa transceivers, and display shields.
Product Overview
The ESP32 LoRa SX1278 module represents a sophisticated integration of three essential wireless technologies on a single platform. The ESP32 microcontroller operates at 240 MHz dual-core processing power with 520 KB RAM, providing sufficient computational resources for complex IoT applications. The SX1278 LoRa transceiver operates in the 433 MHz or 868/915 MHz frequency bands, delivering communication range up to 10 kilometers in open space with excellent penetration through obstacles. The integrated 0.96-inch blue OLED display with 128x64 pixel resolution provides real-time status monitoring, sensor readings, and system diagnostics without requiring external display modules or additional GPIO pins beyond the I2C interface.
This module excels in applications requiring simultaneous WiFi connectivity for cloud integration, Bluetooth for smartphone pairing, and LoRa for long-range mesh networking. The SX1278 transceiver uses spread spectrum modulation with configurable spreading factors (SF7-SF12), enabling trade-offs between range and data rate. The OLED display operates at 3.3V with I2C communication, consuming minimal power while providing crisp monochrome visualization. The entire module is designed for Arduino IDE compatibility, supporting standard libraries and sketch-based programming, making it accessible to developers of all skill levels while maintaining professional-grade capabilities.
Key Specifications
| Specification | Details |
| Product Type | ESP32 LoRa WiFi Bluetooth Module with OLED Display |
| Microcontroller | ESP32 Dual-Core 240 MHz with 520 KB RAM |
| LoRa Transceiver | Semtech SX1278, 433/868/915 MHz frequency bands |
| LoRa Range | Up to 10 km in open space with SF12 |
| Display | 0.96 inch Blue OLED, 128x64 pixels, I2C interface |
| Wireless Protocols | WiFi 802.11 b/g/n, Bluetooth 4.2 BLE, LoRa |
| GPIO Pins | 34 total pins with ADC, SPI, I2C, UART support |
| Operating Voltage | 3.3V with integrated voltage regulator |
| Power Consumption | 80 mA typical operation, 10 uA deep sleep mode |
| 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 |
Key Features
- Dual-core ESP32 processor at 240 MHz with 520 KB SRAM enabling complex algorithm execution and real-time data processing without external computation modules
- Integrated SX1278 LoRa transceiver supporting spreading factors SF7 through SF12 for flexible range-to-data-rate optimization in mesh networking topologies
- 0.96-inch blue OLED display with 128x64 resolution and I2C interface providing instant visual feedback for sensor readings, connection status, and system diagnostics
- Triple wireless connectivity with simultaneous WiFi 802.11b/g/n, Bluetooth 4.2 BLE, and LoRa enabling hybrid cloud-local-mesh network architectures
- 34 GPIO pins with integrated ADC, SPI, I2C, and UART interfaces supporting direct sensor integration without additional breakout boards
- Ultra-low power deep sleep mode consuming only 10 microamps, ideal for battery-powered remote monitoring and IoT edge devices
Applications and Use Cases
- Remote environmental monitoring stations collecting temperature, humidity, and air quality data via LoRa mesh networks with real-time OLED display and cloud synchronization via WiFi
- Smart agriculture IoT systems tracking soil moisture, light intensity, and plant health across distributed farm zones with LoRa long-range connectivity and smartphone control via Bluetooth
- Industrial asset tracking and predictive maintenance where devices transmit GPS coordinates and sensor telemetry through LoRa gateways while displaying local status on integrated OLED screens
- Home automation mesh networks creating self-healing topologies using LoRa for room-to-room communication while maintaining WiFi bridge connectivity and Bluetooth smartphone interface
- Portable weather stations and environmental data loggers with autonomous operation using LoRa for data transmission to central servers and OLED display for field technician visibility
How to Use
Begin by installing the ESP32 board package in Arduino IDE through the Boards Manager, then add the LoRa library and Adafruit SSD1306 OLED library via the Library Manager. Connect your development computer to the module via USB-C cable and select the appropriate COM port and ESP32 board variant. Initialize the SX1278 LoRa transceiver with your target frequency band (433, 868, or 915 MHz), spreading factor, and bandwidth parameters in your sketch setup function. Configure the I2C OLED display with address 0x3C and initialize it to display boot messages, connection status, and real-time sensor data.
For LoRa communication, implement packet transmission using the LoRa.beginPacket() function, write your payload data, and call LoRa.endPacket() to transmit. On the receiving end, continuously check LoRa.parsePacket() in your main loop to detect incoming messages and read them byte-by-byte using LoRa.read(). Update your OLED display within the main loop to show WiFi connection status, LoRa signal strength (RSSI), received packet count, and sensor readings. Utilize the deep sleep functionality with ESP.deepSleep() for battery-powered applications, waking the device periodically via external interrupt or internal timer to conserve power between transmission cycles.
Frequently Asked Questions
What is the maximum LoRa communication range achievable with this module?
The SX1278 transceiver achieves approximately 10 kilometers range in open space line-of-sight conditions using spreading factor SF12 with 125 kHz bandwidth. Real-world range depends on antenna quality, environmental obstacles, and interference. Urban environments typically yield 2-5 km range, while rural areas with clear line-of-sight can exceed 8 km. Using lower spreading factors (SF7-SF9) reduces range to 1-3 km but increases data rate for applications requiring faster transmission. Antenna type significantly impacts performance; upgrade from the standard PCB antenna to an external 5 dBi LoRa antenna to achieve maximum range.
Can I use WiFi, Bluetooth, and LoRa simultaneously on this module?
Yes, the ESP32 architecture supports concurrent operation of all three wireless protocols through intelligent time-division multiplexing. However, simultaneous high-bandwidth usage (such as WiFi file transfer while transmitting LoRa packets) may cause performance degradation. For optimal results, implement application logic that prioritizes critical LoRa transmissions during WiFi idle periods, or use LoRa for low-bandwidth telemetry while WiFi handles bulk data transfers. The module can maintain WiFi connection, accept Bluetooth commands, and transmit LoRa packets in sequence without requiring manual switching between protocols.
How do I display custom graphics and sensor data on the 0.96-inch OLED screen?
The integrated OLED uses the SSD1306 controller accessible via I2C address 0x3C. Use the Adafruit SSD1306 library to initialize the display with Adafruit_SSD1306 display(128, 64, &Wire, -1). Draw text with display.println() and display.print() functions, create graphics using display.drawPixel(), display.drawLine(), and display.drawRect() functions. Update the display by calling display.display() after drawing operations. For sensor integration, read analog values from ADC pins using analogRead(), convert to physical units, format as strings, and display on the OLED. The display supports multiple font sizes and can refresh at 60+ Hz for real-time animations and data visualization.
What battery capacity is recommended for long-term autonomous operation?
For continuous operation with WiFi active, use a 5000 mAh lithium-ion battery or larger. For LoRa-only applications with deep sleep between transmissions, a 2000 mAh battery can operate for weeks depending on transmission interval. Calculate power consumption as: Active current (80 mA) × transmission time + Sleep current (10 uA) × idle time. For example, transmitting 100 bytes every 10 minutes with 1-second transmission time consumes approximately 0.13 mA average current, extending battery life to 15,000 hours (625 days) with a 2000 mAh battery. Implement battery voltage monitoring using ADC pin connected to a voltage divider circuit to trigger low-battery alerts on the OLED display.
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
Buy ESP32 LoRa SX1278 0.96 Inch Blue OLED Display BT WiFi Module for Arduino Online in India
Purchase the ESP32 LoRa SX1278 0.96 Inch Blue OLED Display BT WiFi Module for Arduino 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.