AnyPCBA PCB and PCBA case studies
Long-range, low-power wireless communication is a critical requirement for many industrial IoT applications. This project required a robust LoRa transceiver module that could provide reliable serial data transmission over several kilometers in complex environments, with minimal power consumption for battery-powered devices.
Key Hardware Requirements:
Long-Range Communication: Reliable data transmission up to 3km in challenging environments
Ultra-Low Power Consumption: Extremely low sleep and receive currents for battery-powered operation
Industrial-Grade Reliability: Wide operating temperature range and stable performance
Flexible Configuration: Adjustable frequency, output power, and address settings
Easy Integration: Standard UART serial interface and compact SMT package
We designed an industrial-grade LoRa transceiver module PCBA based on Semtech's LoRa modulation technology — a proven solution for long-range, low-power wireless communication. The module uses a UART serial interface to connect with target devices, enabling simple and reliable data exchange over long distances in outdoor and complex environments.
Key design features:
RF Circuit Design
Optimized LoRa RF front-end for maximum sensitivity and range
Precision impedance-controlled traces for 50Ω antenna matching
Careful PCB layout to minimize noise and maximize signal integrity
Power Management
Ultra-low power consumption design: 8.1mA sleep current, 25.8mA receive current
Wide input voltage range (1.8V – 3.6V), suitable for various power sources
Efficient power regulation for battery-powered applications
Frequency & Configuration Flexibility
Supports 455-487MHz frequency range (default 470MHz)
15 configurable channels, 1MHz step
15-level adjustable output power (up to 20dBm/100mW)
Configurable module address (up to 65,536 addresses)
Interface & Packaging
Standard UART serial interface (8N1, 115200 baud)
250-byte data buffer for both transmit and receive
Compact SMT package (2×17pin) for automated assembly
IPEX antenna connector for easy integration
PCB Manufacturing
Industrial-grade materials for -30°C to +75°C operation (extended -40°C to +85°C)
Controlled impedance for RF performance
Design optimized for high-yield SMT production
| Parameter | Specification |
|---|---|
| Modulation | LoRa (Semtech) |
| Frequency Range | 455-487MHz (default 470MHz) |
| Channels | 15 channels, 1MHz step |
| Output Power | Up to 20dBm (100mW), 15-level adjustable |
| Communication Range | Up to 3km (conditions apply) |
| Receiver Sensitivity | -130dBm @ 2.4kbps |
| Interface | UART (8N1, 115200) |
| Data Buffer | 250 bytes (TX/RX) |
| Supply Voltage | 1.8V – 3.6V (typical 3.3V) |
| Sleep Current | 8.1mA |
| Receive Current | 25.8mA |
| Transmit Current | 107mA @ 20dBm |
| Operating Temperature | -30°C to +75°C (extended -40°C to +85°C) |
| Antenna | IPEX connector |
| Package | SMT, 2×17pin |
Reliable Long-Range Communication: Achieved up to 3km range in challenging environments
Ultra-Low Power: Optimized for battery-powered IoT applications
Flexible Configuration: Address, power, and frequency settings for diverse use cases
Industrial-Grade Design: Reliable operation in harsh conditions
Manufacturing Ready: SMT package optimized for high-volume production
Remote wireless meter reading
Wireless sensor networks
Smart home and building automation
Industrial monitoring and control
Street lighting control
Smart agriculture and farming
Environmental monitoring
Wireless alarm and security systems
Ready to develop your IoT wireless communication project? Contact us to learn how AnyPCBA can support your product development and production.
