The Ebyte E103-RTL8711DA series is an industrial-grade dual-band 2.4GHz and 5.8GHz Wi-Fi plus BLE 5.0 combo UART module powered by the RTL8711DAF chipset, offering up to 710m transmission range, AP/STA/STA+AP modes, and seamless data acquisition capabilities for smart home and industrial control IoT applications.
| Specification Parameter | Technical Value |
|---|---|
| Core Chipset | RTL8711DAF |
| Operating Frequency | 2.4 GHz + 5.8 GHz (Dual-Band) |
| Communication Protocol | IEEE 802.11b/g/n + BLE 5.0 |
| Max Transmission Range | Up to 710m (XS version) / 550m (PS version) |
| Operating Modes | AP, STA, STA+AP |
| Communication Interface | UART / TTL (Test Board) |
Developer Resources Prompt
Please scroll up to the "Downloads" section on this page for full user manuals, technical specifications and RF test reports.
Key Features & Advantages
Selection Note: The XS and PS versions are SMD modules requiring PCB integration. For rapid prototyping, breadboard testing, or plug-and-play evaluation, please select the E103-RTL8711DA-PS-TB Test Board Kit which includes USB power and TTL interfaces.
| Parameter | E103-RTL8711DA-XS | E103-RTL8711DA-PS |
|---|---|---|
| Product Model | E103-RTL8711DA-XS | E103-RTL8711DA-PS |
| Product Appearance | （IPEX） | （PCB） |
| Chip solution | RTL8711DAF | RTL8711DAF |
| WiFi protocol | IEEE 802.11b/g/n | IEEE 802.11b/g/n |
| bluetooth protocol | BLE5.0 | BLE5.0 |
| Operating Frequency Band (WiFi) | 2412-2484MHz / 5180-5825MHz | 2412-2484MHz / 5180-5825MHz |
| Operating Frequency Band (BLE) | 2402-2480MHz | 2402-2480MHz |
| Operating voltage | 3.0 ~ 3.6V | 3.0 ~ 3.6V |
| Communication level | 3.3V | 3.3V |
| Transmit power | 20dBm | 20dBm |
| Transmission Current (2.4 GHz band) | ≈265mA@3.3V supply | ≈265mA@3.3V supply |
| Receive current (2.4 GHz band) | ≈328mA@3.3V supply | ≈328mA@3.3V supply |
| Receive current (2.4 GHz band) | ≈43mA@3.3V supply | ≈43mA@3.3V supply |
| Receive current (5 GHz band) | ≈46mA@3.3V supply | ≈46mA@3.3V supply |
| Average sleep current (Sleep CG) | ≈87uA | ≈87uA |
| Average sleep current (Sleep IO) | ≈422uA | ≈422uA |
| Average sleep current (Deep sleep) | ≈11uA | ≈11uA |
| Reference distance(WiFi) | 710m | 550m |
| Reference distance(BLE) | 430m | 260m |
| Operating temperature | -20 ~ +70℃ | -20 ~ +70℃ |
| Storage temperature | -40 ~ +95℃ | -40 ~ +95℃ |
| Antenna type | IPEX-1 | PCB mounted |
| Flash | 4MB | 4MB |
| Packaging method | SMD | SMD |
| Size | 16.5×16×2.7mm | 21.0×16×2.7mm |
Key Features & Advantages
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Interference-Resistant Dual-Band Network: Operates on both 2.4GHz and 5.8GHz frequencies, allowing industrial equipment to bypass congested 2.4G bands and utilize 5.8G for cleaner, low-latency telemetry transmission.
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Wi-Fi & BLE 5.0 Combo Architecture: Integrated with the RTL8711DAF chipset to support simultaneous IEEE 802.11b/g/n and Bluetooth Low Energy 5.0, enabling local BLE configuration and long-range Wi-Fi backhaul.
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Versatile Operating Modes: Supports AP (Access Point), STA (Station), and STA+AP concurrent modes, providing flexible network topology integration for both host and endpoint applications.
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Rapid Prototyping Ecosystem: The available PS-TB test board routes all essential IO pins to standard breadboard-compatible headers, featuring direct USB power and TTL communication for immediate firmware evaluation.
Industrial Installation & Wiring
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SMD Module Integration (XS/PS): Both the XS and PS variants are designed with stamp-hole (castellated) edge contacts for direct PCB surface mounting via standard SMT reflow soldering processes. Ensure the antenna keep-out zone is respected during PCB layout.
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Test Board Setup (PS-TB): The evaluation board requires zero soldering. Simply connect it to your PC or IPC via the onboard USB port for power and initial serial configuration. The lateral pin headers allow seamless jumper wire connections to external sensors or breadboards.
| No. | Pin Name | Pin type | Pin Functions |
|---|---|---|---|
| 1 | BAT_MEAS | - | - |
| 2 | PB4_LOGRXD | I/O | LOGRXD Serial port for firmware downloading and log output |
| 3 | PB5_LOGTXD | I/O | LOGTXD Serial port for firmware downloading and log output |
| 4 | PB17 | I/O | Standard GPIO, multiplexable for other functions |
| 5 | PB18 | I/O | Standard GPIO, multiplexable for other functions |
| 6 | PB19 | I/O | Standard GPIO, multiplexable for other functions |
| 7 | PB20 | I/O | Standard GPIO, multiplexable for other functions |
| 8 | PB21 | I/O | Standard GPIO, multiplexable for other functions |
| 9 | PB30 | I/O | Wakeup Pin |
| 10 | PB31 | I/O | Wakeup Pin |
| 11 | CHIP_EN | RST | Reset pin |
| 12 | VDD | P | Module Power Supply VDD |
| 13 | GND | G | Module Power Supply GND |
| 14 | PA8 | I/O | Standard GPIO, multiplexable for other functions |
| 15 | PA12 | I/O | Standard GPIO, multiplexable for other functions |
| 16 | PA13 | I/O | Standard GPIO, multiplexable for other functions |
| 17 | PA14 | I/O | Standard GPIO, multiplexable for other functions |
| 18 | PA15 | I/O | Standard GPIO, multiplexable for other functions |
| 19 | PA16 | I/O | Standard GPIO, multiplexable for other functions |
| 20 | PA17 | I/O | Standard GPIO, multiplexable for other functions |
| 21 | PA18 | I/O | Standard GPIO, multiplexable for other functions |
| 22 | PA26 | I/O | Standard GPIO, multiplexable for other functions |
| 23 | PA27 | I/O | Standard GPIO, multiplexable for other functions |
| 24 | USB- | I/O | General-purpose GPIO, multiplexable for USB- and other functions |
| 25 | USB+ | I/O | Standard GPIO, multiplexable for USB+ and other functions |
| 26 | PA30 | I/O | Standard GPIO, multiplexable for other functions, SWD CLK |
| 27 | PA31 | I/O | Standard GPIO, multiplexable for other functions, SWD DATA |
| 28 | NC | / | / |
| 29 | GND | G | Module Power Supply GND |
| 30 | NC | / | / |
| 31 | GND | G | Module Power Supply GND |
Practical Application Scenarios
1. Smart Factory Data Acquisition Systems
In modern manufacturing facilities where the 2.4GHz spectrum is heavily congested by existing equipment and legacy Bluetooth devices, the E103-RTL8711DA series module leverages its 5.8GHz band capability. By integrating this module into industrial PLCs or Ebyte remote I/O modules, automation engineers can ensure low-latency, interference-free transmission of critical sensor data to the local SCADA network via the STA mode.
2. Intelligent HVAC and Building Automation
For smart home and commercial HVAC control panels, device configuration can often be complex. The BLE 5.0 capability of this module allows field technicians to use a smartphone app for quick, local Bluetooth provisioning (setting up Wi-Fi credentials). Once configured, the module switches to Wi-Fi to maintain a continuous, low-data-rate telemetry link to the central building management server.
3. Rapid IoT Gateway Prototyping
Hardware startups and R&D engineers developing custom IoT gateways can utilize the E103-RTL8711DA-PS-TB test board to drastically reduce time-to-market. By plugging the test board directly into a standard breadboard and utilizing the TTL interface, developers can quickly interface the RTL8711DAF chipset with external microcontrollers or Ebyte LoRa nodes to validate dual-protocol data routing logic before committing to a custom PCB layout.
FAQ Section
1. What is the primary difference between the XS and PS versions of this module?
The XS version (E103-RTL8711DA-XS) features a more compact footprint (16.5 x 16 mm) and provides a longer maximum transmission range (up to 710m on 5.8GHz). The PS version (E103-RTL8711DA-PS) has a slightly larger footprint (21.0 x 16 mm) with a range of up to 550m. Both utilize the same RTL8711DAF core chipset and support the same firmware protocols.
2. Can the Wi-Fi and BLE 5.0 protocols operate concurrently?
Yes. The module integrates both hardware and software resources required for dual-protocol operation. A common use case is utilizing BLE 5.0 for localized, low-power device configuration or diagnostics, while the Wi-Fi interface concurrently handles long-range data uploading to a remote server.
3. Do I need an external MCU to operate the E103-RTL8711DA series?
While the module can handle network processing, it operates primarily as a UART-to-Wi-Fi/BLE serial transceiver. You will typically interface it with a host microcontroller (MCU) or industrial PC that sends AT commands or raw serial data via the UART pins for transmission over the wireless network.
4. How can I easily evaluate the module without designing a custom PCB?
We strongly recommend purchasing the E103-RTL8711DA-PS-TB Test Board. It comes pre-mounted with the PS module and includes a USB power interface, a TTL communication port, and standard pin headers. This allows you to connect it directly to your PC for AT command testing or plug it into a breadboard for peripheral integration.
