Serial communication protocols like UART, SPI, and I²C are the backbone of many industrial applications. They enable devices to exchange data efficiently and are widely used for tasks ranging from logging and monitoring to handling time-critical control data and even safety-critical emergency signals.
These protocols are popular because they’re versatile, simple, cost-effective, and easy to implement. However, they typically rely on serial data cables, which can limit their application in mobile and dynamic environments like autonomous guided vehicles (AGVs), drones, mobile robots, and other systems that require freedom of movement.
The Challenge: Mobility Without Cables
While serial communication is robust, the reliance on cables makes it impractical for applications where mobility is key. Tethering devices with cables restricts their range, introduces potential points of failure, and limits scalability.
Here’s where wireless communication comes into play. By replacing serial data cables with wireless solutions, you unlock new possibilities for mobility, scalability, and flexibility in your industrial systems.
Bluetooth: A Reliable Replacement for Serial Cables
Over the years, Bluetooth—specifically Bluetooth Low Energy (BLE)—has emerged as an ideal choice for replacing serial data cables, even in demanding environments such as industrial warehouses. BLE offers a seamless way to transmit data wirelessly while continuing to use the same serial protocols (UART, SPI, I²C) that your systems already rely on.
How It Works
You can replace your serial cables with Bluetooth radios, which act as wireless links for the existing serial communication. This approach allows for a simple and effective transition without overhauling your existing protocols or infrastructure.
Off-the-Shelf Solutions
There are several commercially available BLE modules designed for serial communication, such as:
These modules often come with preinstalled software for basic serial data exchange over Bluetooth. However, the performance and configuration options vary, especially in terms of throughput and latency.
DEWINE Labs: Elevating Wireless Serial Communication
At DEWINE Labs, we’ve taken wireless serial communication a step further by developing our LinkBlu software. This software is tailored for demanding environments requiring the highest reliability and performance levels.
Key features include:
- High throughput: Up to 700 kbps even under heavy Wi-Fi interference.
- Long-range communication: Reliable connections up to 200 meters indoors and over 1,000 meters outdoors.
- Interference resistance: Designed to handle the challenges of industrial settings with multiple wireless systems.
Our solution ensures that your devices communicate efficiently and reliably, whether in a factory, warehouse, or outdoor environment.
The Benefits of Going Wireless
By transitioning from cables to Bluetooth communication, you gain a host of advantages:
- Mobility: Devices are no longer constrained by physical cables.
- Dynamic connections: Devices can connect and switch communication partners based on real-time needs.
- Extended range: Wireless communication enables connectivity over hundreds or even thousands of meters.
- Cost savings: Eliminate cable expenses and maintenance.
- Scalability: Easily add new devices to your network without complex rewiring.
Takeaway
If you rely on serial communication protocols like UART, SPI, or I²C but need to eliminate cables, Bluetooth-based solutions are a simple and effective option. Whether you choose an off-the-shelf module or our advanced LinkBlu software, you can make the transition without redesigning your entire system.
Going wireless opens the door to new possibilities for industrial automation, mobile applications, and scalable networks. With Bluetooth, your devices can go farther, work smarter, and stay connected—without the constraints of cables.
