The Ebyte E22-400TBH-02 is an entry-level LoRa development test board built around the Semtech SX1262-based E22-400T37S high-power module supporting 230/433/470MHz frequency bands, offering full pin access, breadboard compatibility, and UART-to-USB debugging for rapid IoT hardware prototyping.
| Technical Parameter | E22-400TBH-02 Specification | Remarks / Conditions |
|---|---|---|
| Core RF Module | E22-400T37S | Embedded Semtech SX1262 LoRa Chip |
| Operating Frequency Band | 230MHz / 433MHz / 470MHz | Configurable sub-GHz ISM band |
| Maximum Transmit Power | 37 dBm (5W) | High power for ultra-long distance testing |
| Communication Interface | UART / TTL / USB Debugging Port | Supports direct PC serial connection |
| Board Architecture & Pinout | Full Pin Access, Breadboard Compatible | Designed for rapid prototyping & debugging |
| Modulation Technology | LoRa Spread Spectrum | Superior anti-interference and receiver sensitivity |
| Power Supply Input | USB 5V or External DC Terminal | Adequate current needed for 37dBm burst transmission |
Key Features
Integrated LoRa Module
Pre-installed E22-400T37S module supporting 230/433/470MHz bands with LoRa spread spectrum technology.
Developer-Friendly Design
Dual-side pin headers provide full I/O access for peripheral connections and breadboard integration.
Flexible Power Options
Supports 4.5-15V input range for various power sources including USB and battery packs.
Technical Specifications
Core Components
- Main Module: E22-400T37S LoRa
- Frequency Bands: 230MHz/433MHz/470MHz
- Modulation: LoRa Spread Spectrum
Physical Dimensions
- Size: 59.5×97mm
- Interface: USB (power/programming)
Electrical Characteristics
- Supply Voltage: 4.5-15V DC
- Logic Level: TTL
Application Scenarios
IoT Prototyping
Rapid development of long-range sensor nodes and gateways for industrial monitoring systems.
Wireless Communication Research
Hands-on testing platform for LoRa network performance in multi-frequency environments.
Educational Labs
Starter kit for university courses on LPWAN technologies and embedded systems design.
| Serial number | parameter name | Parameter value | Remarks |
| 1 | Support module | E22-400T37S/E22-230T37S/E32-433T37S | LoRa wireless module |
| 2 | Test board size | 59.5*97mm | - |
| 3 | Production Process | Lead-free process, machine-mounted | Wireless products must be machine-mounted to ensure batch consistency and reliability. |
| 4 | Power supply interface | - | - |
| 5 | Communication Interface | USB | uart to USB |
| 6 | Operating temperature | -40~+85℃ | Industrial grade |
| 7 | Working humidity | 10%~90% | Relative humidity, no condensation |
| 8 | Storage temperature | -40~+125℃ | Industrial grade |
Practical Application Scenarios
1. Rapid Prototyping and RF Performance Benchmarking for Hardware Startups
Hardware design engineers and IoT creators developing custom remote sensors often need a reliable testbed before committing to custom PCB layouts. The Ebyte E22-400TBH-02 LoRa Development Test Board provides full pin access and breadboard compatibility around the high-power E22-400T37S module. Engineers can plug it directly into development setups, connect via onboard USB serial debugging, and benchmark packet error rates and maximum line-of-sight propagation ranges in real time.
2. Proof-of-Concept Testing for Long-Range Industrial Telemetry Networks
Industrial system integrators designing smart agricultural or utility monitoring networks require verifiable link budgets over extended distances. Using this development board alongside Ebyte industrial Sub-GHz wireless modules, developers simulate extreme multi-kilometer field conditions. The onboard SX1262 spread-spectrum engine evaluates signal penetration through dense obstacles, validating network stability before deploying full-scale commercial base stations.
3. Firmware Debugging and Custom Protocol Development for Embedded Engineers
Embedded developers writing custom sensor firmware need frictionless access to UART serial parameters, AUX status lines, and configuration commands. The test board features an onboard USB-to-UART bridge that allows developers to flash configurations, monitor real-time hexadecimal logs via PC terminal software, and fine-tune spreading factors and bandwidths on the fly without building custom interface adapters.
FAQ Section
1. What is the main advantage of using the E22-400TBH-02 test board over a bare E22-400T37S module?
The test board integrates essential peripheral circuits including power regulation, level shifting, an SMA antenna connector, and a USB-to-UART bridge. This eliminates the need for engineers to solder delicate stamp-hole pins or design custom breakout boards, allowing immediate plug-and-play evaluation and PC communication out of the box.
2. Can this development board be powered directly from a standard computer USB port during high-power 37dBm transmissions?
While standard USB ports supply sufficient current for configuration and low-power modes, transmitting at the maximum 37dBm (5W) output level demands a transient current peak that standard 500mA USB ports may fail to sustain. It is strongly recommended to use an independent external DC power supply or a high-current USB wall adapter when testing at full transmission power.
3. Which software tools are recommended for configuring and testing this development board?
Developers can use official Ebyte serial configuration software via the onboard USB port to modify operating channels, air data rates, and transmission modes. Standard serial terminal programs such as Tera Term, SSCOM, or CoolTerm can also be used to monitor incoming and outgoing transparent data packets.
