The Ebyte E32-400MBL-01 is a compact 53x27mm Sub-1G wireless evaluation test board powered by an onboard STM8L151G4 MCU, specifically engineered for rapid USB debugging, range testing, and prototyping of E32 series 400MHz Sub-1GHz LoRa modules like the E32-400M20S with plug-and-play PC connectivity.
| Parameter | Specification | Remark |
|---|---|---|
| Model Number | E32-400MBL-01 | Official MBL Series Evaluation Board |
| Main Control MCU | STM8L151G4 | Ultra-low-power 8-bit MCU onboard |
| Target Module Model | E32-400M20S (E32 Series) | New generation package compatible |
| Operating Band | 410 - 493 MHz (433/470MHz) | Sub-1GHz ISM frequency band |
| Host Interface | USB Type-A / 2.54mm Pin Headers | Direct PC UART virtual port connection |
| Board Dimensions | 53 * 27 mm | Compact form factor |
| Pin Breakout Design | Dual-side standard pitch headers | Convenient jumper wire prototyping |
| Operating Temperature | -40 to +85 C | Industrial-grade operation |
Practical Application Scenarios
1. Rapid Benchtop AT Command Configuration and Parameter Tuning
During early software development for 433MHz Sub-1G wireless sensor networks, embedded system developers plug the E32-400MBL-01 test board directly into a PC USB port. Utilizing the onboard STM8L151G4 MCU and virtual UART bridge, engineers use Ebyte official configuration tools to modify operating channels, address bytes, and air data rates for the attached E32-400M20S module without wiring up messy external development boards.
2. On-Site Field RSSI Measurement for Smart Grid Gateways
When deploying remote power distribution telemetry systems, field engineers require portable test equipment to map 433MHz Sub-GHz RF coverage across transformer stations and concrete enclosures. Technicians plug the E32-400MBL-01 into a field laptop to monitor real-time RSSI, frame loss, and signal penetration, ensuring optimal placement before installing permanent Ebyte Industrial DTUs or Modbus gateways.
3. Prototyping Multi-Sensor Edge Nodes for Industrial Automation
System integrators designing factory environment monitoring systems use the dual-side 2.54mm pin breakouts on the E32-400MBL-01 to attach external temperature sensors, relays, and gas detectors via jumper wires. This setup allows hardware developers to validate peripheral logic and communication stability for new generation package-compatible E32 modules prior to completing custom PCB layout.
FAQ Section
1. What is the main function of the onboard STM8L151G4 MCU on the E32-400MBL-01 test board?
The onboard ultra-low-power STM8L151G4 microcontroller acts as an intelligent control and interface bridge for the MBL evaluation kit. It manages communication protocols between the USB host and the pre-mounted E32-400M20S module, providing stable logic handling and power regulation during bench testing.
2. How are the GPIO and communication pins of the module broken out for prototyping?
Most functional pins of the E32 series target module are routed directly to standard 2.54mm pitch dual-side headers on the E32-400MBL-01 board. Developers can connect logic analyzers, external microcontrollers (such as STM32, ESP32, or Raspberry Pi), or custom sensor modules using standard DuPont jumper wires.
3. Does the E32-400MBL-01 test board require an auxiliary external power supply?
No, the test board is fully powered directly through the standard 5V USB interface. An onboard low-dropout regulator steps down the USB voltage to a stable 3.3V power rail, which supplies both the STM8L151G4 MCU and the Sub-1G wireless module during full RF power transmission testing.
