E22-xxxT37S is a new generation of LoRa wireless module, based on SEMTECH RF chip wireless serial port module (UART), with a variety of transmission modes, working in the 230/433/470MHz frequency band, LoRa spread spectrum technology, TTL level output, support 4.5V-15V power supply voltage. It adopts a new generation of LoRa spread spectrum technology, which is faster, lower power consumption and smaller in size. It supports functions such as wake-on-air, wireless configuration, carrier monitoring, automatic relay, and communication key, and can provide customized development services.
A new generation of LoRa spread spectrum technology
The anti-interference ability is stronger, and the communication distance is longer. The transmission distance and anti-interference capability of the new generation of spread spectrum communication are more than 1 times higher than that of traditional single-channel communication.
Automatic relay networking
The module can realize multi-level relay networking, multi-level relay networking is suitable for ultra-long-distance or complex environment networking communication, the same area can run multiple networks, the module only needs to supply power in relay mode, no other control unit is required.
Small size, fast speed
The size is smaller than that of ordinary LoRa modules, which can be applied to applications that require volume, and has a high over-the-air transmission rate, which makes up for the shortcomings of traditional LoRa modules.
Low power consumption and long distance
The E22-230T37S deep sleep power consumption is only 2μA, which effectively extends the service life of the battery. The module has built-in PA+LNA, and the transmission distance can reach 25 kilometers in an ideal environment, which greatly improves the transmission distance compared with ordinary LoRa modules of the same power.
Remote configuration
The parameters of the module can be modified remotely, which effectively reduces the cost of installation, commissioning and maintenance.
Communication key
The user can set the key by himself, and only the receiving module of the same key can receive the data, and the key cannot be read, which improves the confidentiality of the user data.
LBT function + RSSI signal strength
Actively monitor the environmental noise of the channel, and delay the transmission if the noise exceeds the threshold, which improves the communication success rate of the module in harsh environments. Signal strength indication can be used to evaluate signal quality and improve communication networks.
Other features
• Support the global license-free ISM 433MHz frequency band, support 230/470MHz meter reading frequency band;
• The parameters are saved after power-off, and the module will work according to the set parameters after powering back on;
• Efficient watchdog design, once an exception occurs, the module will automatically restart, and can continue to work according to the previous parameter settings;
• Support 0.3K~62.5kbps data transmission rate;
• Support 4.5~15V wide voltage power supply, the whole power supply range can ensure 37dBm power output;
• Industrial-grade standard design, support long-term use at -40~+85°C;
• The maximum power of the module can reach 5W (37dBm), which can transmit farther and more stable.
• Built-in under-voltage, over-voltage warning function and built-in warning LED, built-in over-temperature protection function, automatic stop sending when the maximum temperature of the module is exceeded.
• Matrix pads are reserved at the bottom to facilitate heat dissipation treatment for secondary development.