The Ebyte E220-400TBL-01 is a comprehensive USB-to-TTL evaluation test board kit pre-soldered with the E220-400T22S LLCC68 433/470MHz LoRa module. It provides engineers with a rapid plug-and-play hardware interface for PC-based AT command configuration, signal range testing, and seamless IoT prototype development, significantly accelerating the R&D cycle.
| Parameter | Specification | Remark |
|---|---|---|
| Model Number | E220-400TBL-01 | Official Evaluation Kit |
| Target RF Module | E220-400T22S | Pre-soldered on the board |
| Core RF Chip | Semtech LLCC68 | New generation LoRa spread spectrum |
| Operating Frequency | 410 - 493 MHz | Supports 433MHz / 470MHz ISM bands |
| Max TX Power | 22 dBm | Software adjustable |
| Hardware Interface | USB to TTL Serial | Direct plug-and-play to PC |
| Antenna Connector | SMA-K | Standard 50 ohm external antenna hole |
| Kit Inclusions | Test Board, Rubber Antenna, USB Cable | Complete testing suite |
| Operating Temperature | -40 to +85 C | Industrial grade reliability |
Practical Application Scenarios
1. Rapid PC-Based RF Range Testing
Before committing to PCB manufacturing, RF engineers need to validate the real-world communication distance of the E220-400T22S module. The E220-400TBL-01 allows engineers to connect one kit to a laptop in the lab and another kit to a mobile laptop in the field. Using Ebyte's serial port utility, they can send continuous packets to evaluate RSSI, packet loss rates, and actual LoRa transmission capabilities across different urban or industrial environments without soldering a single wire.
2. Smart Grid Metering Prototype Development
When designing automated meter reading (AMR) systems, developers must establish the communication protocol between the concentrator and the end node. The USB-to-TTL bridge on the E220-400TBL-01 enables developers to connect the LoRa module directly to an industrial PC or Raspberry Pi via USB. They can quickly write and debug Modbus-RTU parsing scripts or transparent transmission protocols, simulating how an Ebyte E810 DTU would eventually interact with the sub-GHz network.
3. Agricultural Sensor Network Gateway Simulation
In smart agriculture scenarios, central gateways collect data from dozens of distributed soil and temperature sensors. Hardware startups can use this evaluation board as a temporary "master node" connected to a central server. By leveraging the LLCC68 chip's long-range 433MHz penetration, developers can verify if the star-network topology can successfully cover a large greenhouse before finalizing the custom gateway PCB design.
FAQ Section
1. Does this test kit require additional drivers to connect to a Windows PC?
Yes, the E220-400TBL-01 test board utilizes a built-in USB-to-TTL conversion chip (typically CH340 or CP2102) to bridge the module's UART interface to your computer. You will need to download and install the corresponding USB-to-Serial driver for your operating system (Windows/Linux/Mac) so the board is recognized as a standard COM port in your device manager.
2. Can I use this board to test the ultra-low power consumption parameters of the E220-400T22S module?
It is not recommended to use the E220-400TBL-01 for precise micro-ampere (uA) sleep current testing. The evaluation board includes auxiliary components such as the USB-to-TTL bridge chip, LDO voltage regulators, and LED indicators, which consume their own current. For accurate baseline power consumption testing, the raw SMD module should be integrated onto your custom PCB with proper power-down modes configured.
3. Is the E220-400T22S module permanently soldered on the board, or can I swap it with other frequencies?
The E220-400T22S module is physically soldered onto the E220-400TBL-01 PCB using SMD stamp holes to ensure maximum RF stability and reliability during evaluation. It is not a socketed design. If you need to test the 868MHz or 915MHz versions, you must purchase the specific evaluation board dedicated to those frequency modules (e.g., the E220-900TBL-01).
