E22-230T22U, E22-400T22U and E22-900T22U are the new generation of LoRa wireless spread spectrum modules,of which E22-230T22U and E22-900T22U modules are wireless serial modules designed based on SEMTECH's SX1262 chip solution, while E22-400T22U module is based on SX1268 chip scheme design. With multiple transmission modes, it works in 220.125MHz~236.125MHz (default 230.125MHz),410.125～493.125MHz (default 433.125MHz),850.125～930.125MHz band (default 868.125MHz), LoRa spread spectrum technology, 5V of IO port voltage, using USB standard package, convenient for user development and use. Communication compatible with E22-230T/400T/900T series products, support baud rate 1200 ~115200bps. E22-230T22U, E22-400T22U, E22-900T22U adopt the new generation LoRa spread spectrum technology, compared with the traditional SX1278 solution, this solution has longer transmission distance and faster speed; it supports wireless configuration, carrier listening, automatic relay, communication key, upgrade firmware and other functions, supports sub-packet length setting, and can provide custom development service.

Features

 New LoRa spread spectrum modulation technology developed based on SEMTECH's SX1262/SX1268 RF chips, bringing longer communication distance and stronger anti-interference capability.

 Support automatic relay networking, multi-level relay for ultra-long distance communication, and multiple networks running simultaneously in the same area.

 Support for user-set communication keys, and cannot be read, greatly improving the confidentiality of user data.

 Supporting LBT function, listening to channel environment noise before sending, which can greatly improve the communication success rate of the module in harsh environment.

 Support RSSI signal strength indication function for evaluating signal quality, improving communication network and ranging.

 Support wireless parameter configuration, send command packets through wireless, remote configuration or read wireless module parameters.

 Support for fixed-point transmission, broadcast transmission, channel monitoring.

 E22-400T22U supports global license-free ISM 433MHz band and supports 470MHz meter reading band.

 Communication distance up to 5km under ideal conditions.

 Parameter power-down saving, the module will work according to the set parameters after re-powering.

 Support for IAP firmware upgrade function.

 Efficient watchdog design, in case of abnormality, the module will restart automatically and can continue to work according to the previous parameter settings.

 E22-230T22U supports data transmission rates from 2.4k to 15.6kbps.

 E22-400T22U supports data transfer rates from 2.4k to 62.5kbps.

 E22-900T22U supports data transfer rates of 2.4k to 62.5kbps.

 USB standard interface, plug and play.

 Supports 4.8 to 5.5V power supply, and any power supply greater than 5V can ensure the best performance.

 Industrial-grade standard design, supporting long time use under -40～+85℃.

 SMA antenna interface, can be easily connected to external antennas.

  Baud rate support 1200, 2400, 4800, 9600 (default), 19200, 38400, 57600, 115200 bps.

 Communication compatible with E22-230T/400T/900T series products.

Application 

 Home security alarms.

 Smart home as well as industrial sensors, etc..

 Wireless alarm security systems.

 Building automation solutions.

 Healthcare products.

 Advanced Metering Infrastructure(AMI)

 Automotive industry applications.

Order info

E22-XXXT22U

XXX: order with Center frequency band and choose the relative parts。

230MHz: E22-230T22U

433MHz: E22-400T22U

868MHz,915MHz: E22-900T22U

Parameters

Pin Definition（See the picture）

Useful Link:

User Manual

Development Testin