EBYTE E22-400T37S

The E22-XXXT37S is a new-generation LoRa wireless module and wireless serial module (UART) based on the SX126X RF chip. It features multiple transmission modes, operates in the 230/433/470MHz frequency band, employs LoRa spread spectrum technology, outputs TTL-level signals, and supports a supply voltage of 4.5V–15V. The E22-xx137s adopts the latest LoRa spread spectrum technology; compared to traditional SX1278-based solutions, the SX126X delivers longer transmission range, faster speed, lower power consumption, and a smaller form factor. It supports air wake-up, over-the-air configuration, carrier sense, automatic relay, communication encryption key, and configurable packet length, with custom development services available.

• Based on SX126X, new LoRa spread spectrum modulation technology delivers longer communication range and stronger anti-interference capability.
• Auto-relay networking support, multi-level relay for ultra-long-distance communication; multiple networks can operate simultaneously in the same area.
• User-configurable communication key, non-readable, greatly enhancing data confidentiality.
• LBT support: monitors channel ambient noise before transmission, significantly improving communication success rate in harsh environments.
• RSSI signal strength indication for signal quality assessment and communication network optimization.
• Over-the-air parameter configuration: remotely configure or read module parameters via wireless command packets.
• Wake-on-radio (WOR) support for ultra-low power consumption, suitable for battery-powered applications.
• Fixed-point transmission, broadcast transmission, and channel monitoring support.
• Deep sleep across full power supply range; total power consumption less than 10uA in this mode.
• Supports license-free ISM 433MHz band and 230/470MHz meter-reading band worldwide.
• Built-in PA+LNA; communication range up to 25km under ideal conditions.
• Parameter retention on power loss; module resumes operation with configured parameters upon power-up.
• Efficient watchdog design: automatically restarts and resumes previous parameter settings upon any anomaly.
• Data transmission rate: 0.3K to 62.5kbps.
• Wide voltage input: 4.5 ~ 15V, guaranteed 37dBm power output across full supply range.
• Industrial-grade design, supports continuous operation at -40 ~ +85°C.
• Output power up to 5W (37dBm) for longer and more stable transmission.
• Built-in under-voltage and over-voltage warning functions with dedicated warning LED.
• Built-in over-temperature protection; transmission automatically halts upon exceeding temperature threshold.