Chengdu Ebyte Electronic Technology Co., Ltd. E22-xxxT30x series product user manual
Copyright © 2012–20 2 2 , Chengdu Yibaite Electronic Technology Co., Ltd.
1. Product Overview
1.1 Product introduction
E22-xxxT30x is a new generation of LoRa wireless modules. This series of (UART) modules are developed based on two
different high-performance radio frequency chips, SX1268 and SX1262 . Its transmit power is: 22dBm and has a variety of
transmission methods. The working frequency bands are respectively 230MHz, 400MHz and 900MHz. LoRa spread spectrum
technology, TTL level output, compatible with 3.3V IO port voltage.
E22-xxxT30x adopts a new generation of LoRa spread spectrum technology. Compared with the traditional SX1276 solution, the
SX1262 and SX1268 solutions have longer transmission distance, faster speed, lower power consumption and smaller size; supporting
air wake-up, wireless Configuration, carrier monitoring, automatic repeater, communication key and other functions; supporting
sub-packet length setting and customized development service is available. The six modules in the picture below have the same power
but different frequency bands.
Figure 1: E22-230T30S Figure 2: E22-400T30S Figure 3: E22-900T30S
Figure 4: E22-230T30D Figure 5: E22-400T30D Figure 6: E22-900T30D
1.2 Features
Adopting a new generation of LoRa spread spectrum modulation technology, it brings longer communication distance and
stronger anti-interference ability;
Supporting serial port upgrade of firmware , making it more convenient to update firmware;
Supporting AT commands, making it more convenient to use;
Supporting automatic repeater networking, multi-level repeaters are suitable for ultra-long-distance communications, and
multiple networks can run simultaneously in the same area;
Supporting users to set their own communication keys, which cannot be read, greatly improving the confidentiality of user
data;
Supporting LBT function, which monitors the channel environment noise before sending, which can greatly improve the
communication success rate of the module in harsh environments;
Supporting RSSI signal strength indication function for evaluating signal quality, improving communication networks, and
ranging;