Product Descriptions

EWM22A-400/900BWL22S is a BLE, WIFI, and LoRa multi in one wireless data transmission module developed by Chengdu Yibaite. This series of modules supports BLE, WIFI, and LoRa communication. The LoRa function is compatible with E22-T series modules, surface mount type, with a maximum BLE/WIFI transmission power of 20dBm and LoRa support of 22dBm transmission power, with a pin spacing of 1.27mm. It comes with firmware at the factory and has powerful functions, mainly suitable for data transmission application scenarios.

Product Features

Product Features:

• Supports LoRa, WIFI (IEEE 802.11b/g/n), BLE5.0 multi in one communication technology, with more diverse application scenarios;

• Support BLE over the air firmware encryption upgrade for easy maintenance in the future;

• Supports AT commands, making it more convenient to use;

• Supports deep sleep mode, with a power consumption of approximately 6.7uA for the entire machine;

• Save parameters after power failure, and the module will work according to the set parameters after power on again;

• Efficient watchdog design, once an exception occurs, the module will automatically restart and continue to work according to the previous parameter settings;

• 4 MB embedded FLASH;

•  Flexible deployment: a single module supports multiple protocols, reduces hardware redundancy, and reduces the integration cost of the Internet of Things system.

LoRa features:

• Support AT command and HEX command settings;

• Adopting the new generation LoRa spread spectrum modulation technology, it brings longer communication distance and stronger anti-interference ability;

• Support automatic relay networking, multi-level relay is suitable for ultra long distance communication, and multiple networks run simultaneously in the same area;

• Support users to set their own communication keys, which cannot be read, greatly improving the confidentiality of user data;

• Support LBT function, listen to channel environment noise before sending, which can greatly improve the communication success rate of the module in harsh environments;

• Support RSSI signal strength indication function, used for evaluating signal quality, improving communication networks, and ranging;

• Support wireless parameter configuration, remotely configure or read wireless module parameters by sending command packets wirelessly;

• Support air wake-up, which is an ultra-low power consumption function, suitable for battery powered application solutions;

• Support fixed-point transmission, broadcast transmission, and channel monitoring;

• Under ideal conditions, the communication distance can reach 5km;

• Supports data transmission rates ranging from 2.4K to 62.5Kbps;

• Industrial standard design, supporting long-term use at -40~+85 ℃;

• The maximum module power can reach 160mW (22dBm), with longer and more stable transmission.

BLE feature:

1. Support for slave roles;

2. Supports Bluetooth BLE 5.0 protocol;

3. Support Bluetooth parameter air configuration function;

4. Support modification of transmission power, with a maximum transmission power of 20dBm;

5. The maximum communication distance can reach 500m;

6. Maximum MTU of 517 bytes;

WIFI feature:

• Support STA working mode;

• Support automatic reconnection after disconnection;

• Support WPA2 WIFI security authentication method;

• Support TCP CLIENT communication mode;

• The transmission power is 20dBm;

• The maximum communication distance can reach 500m;

Product Applications

• Smart home and industrial sensors, etc;

• Security system, positioning system;

• Wireless remote control, unmanned aerial vehicle;

• Healthcare products;

• Application in the automotive industry.

Specifications

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