Soldered Lora 868MHz Shield for TTGO T-SIM7000G Module
Soldered Lora 868MHz Shield for TTGO T-SIM7000G Module
The Soldered Lora 868MHz Shield is a pre-assembled expansion module designed specifically for the TTGO T-SIM7000G development board, enabling long-range wireless communication at 868MHz frequency band across Europe and Asia-Pacific regions. IoT developers, embedded systems engineers, and industrial automation specialists use this shield to rapidly prototype LoRaWAN applications without requiring complex soldering or PCB assembly expertise. This product solves the critical challenge of adding reliable long-range connectivity to GPS-enabled cellular modules while maintaining compact form factor and minimal power consumption for battery-operated IoT deployments.
Product Overview
The Soldered Lora 868MHz Shield operates on LoRa modulation technology, which provides extended transmission range up to 15km in open-field conditions while consuming significantly less power than traditional cellular or WiFi modules. The shield integrates a high-performance RF transceiver with impedance-matched antenna connector, allowing the TTGO T-SIM7000G to simultaneously handle GPS positioning, cellular connectivity via SIM card, and long-range LoRa communication. The pre-soldered configuration eliminates assembly time and reduces failure points associated with manual soldering, making it ideal for rapid prototyping, educational projects, and production-ready IoT solutions.
This shield features a standardized header interface that directly stacks onto the TTGO T-SIM7000G module without requiring additional wiring or complex configuration. The 868MHz frequency band ensures compliance with European Telecommunications Standards Institute (ETSI) regulations and integrates seamlessly with public LoRaWAN networks like The Things Network. The module includes built-in voltage regulation, signal conditioning circuits, and protection mechanisms against ESD and RF interference, ensuring reliable operation in diverse environmental conditions including industrial, agricultural, and smart city deployments.
Key Specifications
| Specification | Details |
| Product Type | LoRa 868MHz RF Shield Module |
| Brand | Soldered 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 |
| Operating Frequency | 868MHz ISM Band |
| Transmission Range | Up to 15km line-of-sight |
| Power Supply | 3.3V DC regulated |
| Current Consumption | 120mA (TX), 15mA (RX), 10uA (Sleep) |
| Interface | SPI Serial Communication |
| Antenna Connector | SMA Female |
Key Features
- Pre-soldered assembly eliminates manual PCB soldering, reducing assembly time from hours to minutes and minimizing cold-joint failures in production environments
- 868MHz frequency compliance with ETSI regulations enables deployment across European Union, India, and Asia-Pacific regions without regulatory modifications
- Integrated RF matching network and low-noise amplifier achieve superior sensitivity of -137dBm, extending communication range in weak signal conditions
- Direct stackable interface with TTGO T-SIM7000G combines GPS, cellular LTE-M, and LoRa capabilities in single compact module for multi-connectivity IoT applications
- Ultra-low sleep current of 10 microamperes enables battery-powered deployments with multi-year operational lifespan
- Built-in ESD protection and RF shielding prevent electromagnetic interference and component damage from static discharge
Applications and Use Cases
- Smart Agriculture IoT: Deploy soil moisture sensors, weather stations, and crop monitoring systems across distributed farm locations with LoRaWAN connectivity and GPS location tracking for precision farming
- Industrial Asset Tracking: Monitor equipment location, temperature, and vibration in manufacturing facilities using long-range LoRa communication that penetrates metal structures better than WiFi
- Smart City Infrastructure: Implement distributed environmental sensors for air quality, noise pollution, and water quality monitoring across urban areas with minimal power requirements
- Remote Environmental Monitoring: Track weather parameters, water levels, and seismic activity in remote locations using GPS positioning combined with LoRaWAN reporting to central gateways
- Logistics and Supply Chain: Monitor shipment location and environmental conditions during transit using integrated GPS and cellular connectivity with LoRa backup for areas with poor network coverage
How to Use
Begin by carefully aligning the Soldered Lora 868MHz Shield with the header pins on your TTGO T-SIM7000G module, ensuring proper orientation with the antenna connector facing outward. Gently press the shield onto the headers until fully seated, then secure with appropriate standoffs to prevent mechanical stress on the solder joints. Connect an external 868MHz antenna to the SMA female connector, using a quality RF cable if the antenna must be positioned remotely from the module.
Configure the SPI communication interface in your Arduino IDE or PlatformIO environment by setting the chip select (CS) pin to GPIO 5, MOSI to GPIO 23, MISO to GPIO 19, and SCK to GPIO 18 as per TTGO T-SIM7000G pinout documentation. Initialize the LoRa library with the appropriate frequency (868MHz), spreading factor (SF7-SF12), and bandwidth settings. For LoRaWAN connectivity, register your device on The Things Network console, obtain the AppEUI and AppKey credentials, and implement OTAA (Over-The-Air Activation) in your firmware to establish secure connection with public LoRaWAN infrastructure.
Frequently Asked Questions
Is the Soldered Lora 868MHz Shield compatible with other development boards besides TTGO T-SIM7000G?
The shield is specifically designed for the TTGO T-SIM7000G header configuration. However, the core LoRa module can be adapted to other platforms using custom wiring if the SPI pins and power supply requirements are matched. We recommend contacting our technical team for custom integration assistance on alternative platforms.
What antenna should I use with this 868MHz shield for optimal range?
Use a quarter-wave monopole antenna tuned to 868MHz with minimum 2dBi gain for standard applications, or a 5dBi Yagi antenna for directional long-range deployments. Ensure antenna impedance is 50 ohms and use low-loss coaxial cable if the antenna must be positioned remotely. We stock compatible antennas at The Tech Depot.
Can this shield work with LoRaWAN networks in regions outside 868MHz band?
No, this shield is frequency-locked to 868MHz and cannot be reprogrammed for other bands like 915MHz (Americas) or 433MHz (Asia). For multi-region deployments, you would need region-specific shield variants. The 868MHz band covers Europe, India, and most of Asia-Pacific region.
What is the maximum data payload size for LoRa transmission?
The maximum payload is 255 bytes in raw LoRa mode, but LoRaWAN limits application payload to 51-242 bytes depending on spreading factor and regional regulations. Higher spreading factors (SF11, SF12) reduce maximum payload size but increase range and improve penetration through obstacles.
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 Tech Depot
- 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 Soldered Lora 868MHz Shield for TTGO T-SIM7000G Module Online in India
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