The EWM22A-400BWL22S/EWM22A-900BWL22S series is a Bluetooth Low Energy (BLE)/Wi-Fi/LoRa all-in-one wireless data transmission module developed by Ebyte. This series supports Bluetooth Low Energy (BLE), Wi-Fi, and LoRa communications, with the LoRa function compatible with the E22-T series. These SMD modules offer a maximum transmit power of 20dBm for Bluetooth Low Energy (BLE)/Wi-Fi and 22dBm for LoRa. They feature a 1.27mm pin pitch and come with pre-installed firmware. They are powerful and primarily suitable for data transmission applications.
Features of EWM22A-400/900BWL22S series
Multi-Protocol Integration, Flexible Deployment
This module innovatively integrates the multi-protocol communication capabilities of LoRa, Wi-Fi (802.11b/g/n), and BLE 5.0, significantly improving scenario applicability and deployment flexibility. A single module can meet diverse needs, effectively reducing hardware redundancy and lowering IoT system integration costs.
It supports BLE over-the-air encrypted firmware upgrades for easy maintenance, convenient AT command control, deep sleep (approximately 6.7uA), and parameter retention (power-on). An efficient watchdog timer ensures automatic restart and recovery upon abnormalities. It also includes 4MB of built-in Flash storage, providing a solid foundation for complex applications.
LoRa Spread Spectrum Enables Multi-Command Interoperability
The device utilizes the next-generation LoRa spread spectrum modulation technology, significantly improving communication range (up to 5km under ideal conditions) and interference resistance. Its outstanding interoperability features include support for both AT and HEX command configuration, automatic relay networking (supporting multi-level relaying and multi-network coexistence), fixed-point/broadcast transmission, and channel monitoring, meeting the needs of complex scenarios.
User-configurable unreadable communication keys, LBT channel monitoring (increasing success rates in harsh environments), RSSI signal evaluation, and remote configuration (including reading) of wireless parameters ensure secure and reliable communication and facilitate network optimization. The module also supports a wide range of data rates (2.4K to 62.5Kbps) and wake-on-air (ultra-low power, suitable for battery operation), providing powerful support for diverse applications.
This module is widely applicable in a wide range of fields, including smart homes, industrial sensors, security positioning systems, wireless remote controls/drones, healthcare equipment, and automotive electronics. Its powerful multi-protocol integration and superior performance provide a revolutionary, highly reliable, and flexible connectivity experience across multiple domains.
BLE 5.0 Ultra-Long-Range Intelligent Control
The module's BLE functionality supports the Bluetooth LE 5.0 protocol and supports the slave role, offering excellent connectivity performance. Highlights include a maximum communication range of 500m (thanks to a maximum transmit power of 20dBm) and efficient data transmission (with an MTU of up to 517 bytes). The module also offers powerful over-the-air Bluetooth parameter configuration capabilities, allowing users to flexibly modify key settings remotely, greatly enhancing deployment and maintenance convenience.
Ultra-long-range Wi-Fi connection
This module supports STA mode (connecting to the network as a client), boasts a maximum communication range of 500m (based on 20dBm transmit power), and includes built-in TCP client communication capabilities. Its stable connection mechanism includes automatic reconnection after disconnection, ensuring continuous network availability. It also utilizes WPA2 security certification, providing reliable encryption for data transmission.
