Product Details
New-Generation LoRa Spread Spectrum — SX1262/SX1268, 22dBm, 5km
Built on Semtech’s latest SX1262/SX1268 LoRa chipset, the E22-230T22U delivers 22dBm transmit power with LoRa spread spectrum modulation in the 230MHz band. The combination of LoRa’s superior link budget and the 230MHz band’s excellent diffraction and penetration characteristics enables reliable 5km communication in open environments and strong building penetration for indoor/urban deployments.
USB Plug-and-Play — Direct PC/Host Connection, No Driver Complexity
The standard USB form factor allows direct connection to any PC, Raspberry Pi, or USB-host embedded system without additional UART-to-USB adapters. The 5V USB IO voltage is natively compatible with standard USB ports. Supports USB IAP (In-Application Programming) for online firmware upgrades without disassembly — critical for field-deployed units.
Automatic Relay (Trunking) — Range Extension Without Infrastructure
Built-in automatic relay mode enables any E22-230T22U to transparently re-transmit packets, extending effective range beyond the 5km direct link. Multiple relay hops can be chained without additional gateways. Combined with WoR (Wake-on-Radio) mode, relay nodes can be battery-powered for flexible deployment in remote locations.
LBT, AES Encryption, RSSI & Wireless Remote Configuration
LBT (Listen Before Talk) monitors channel occupancy before transmission to avoid collisions in shared-spectrum environments — compliant with ETSI EN 300 220 duty cycle requirements. AES-based communication key encryption prevents unauthorized access and eavesdropping. RSSI byte reporting enables link quality monitoring. Wireless remote configuration allows parameter changes (address, channel, power, baud rate) over-the-air without physical access to deployed units.
High Speed & Long Range — Cross-Band E22 Series Compatibility
Supports baud rates from 1200 to 115200bps with configurable sub-packet lengths for latency vs. throughput optimization. Fully compatible with E22-230T/400T/900T series modules, enabling mixed-frequency network deployments where 230MHz, 433MHz, and 915MHz nodes communicate through a common protocol stack.
Ideal Applications
FAQ
Q: Is the E22-230T22U compatible with LoRaWAN networks?
A: No. The E22-230T22U uses Semtech SX1262/SX1268 with Ebyte’s proprietary LoRa protocol stack for transparent serial, fixed-point, broadcast, and relay modes. It does not support LoRaWAN 1.0/1.1 out of the box. For LoRaWAN, consider Ebyte E77 series or E106 gateway. The E22 series is ideal for private P2P and mesh networks.
Q: Can the E22-230T22U communicate with E22-400T or E22-900T modules?
A: Yes. The E22-230T22U is protocol-compatible with the full E22-230T/400T/900T series. However, cross-band communication (e.g., 230MHz ↔ 433MHz) requires both modules to be configured to the same frequency channel. In practice, cross-band RF communication is not possible — compatibility refers to the same configuration protocol and software tools, not RF interoperability across different frequency bands.
Q: How does wireless remote configuration work?
A: In wireless configuration mode, one E22-230T22U (connected to a PC via USB) can send configuration commands over-the-air to remote E22 modules in the network. Parameters including address, channel, transmit power, baud rate, and working mode can be updated without physical access to the remote unit — essential for deployed sensor networks.
Q: What is the difference between E22-230T22U and E22-230T22S?
A: The E22-230T22U uses a standard USB connector for direct PC/host connection (5V IO, no external UART adapter needed). The E22-230T22S is a stamp-hole SMD module with UART interface for PCB integration. Choose the U variant for PC-connected gateway/collector applications; choose the S variant for embedded PCB designs.
Q: Does the module support firmware upgrade in the field?
A: Yes. The E22-230T22U supports USB IAP (In-Application Programming) for online firmware upgrades via the USB port using Ebyte’s configuration tool. This allows firmware updates on deployed units without disassembly or specialized programming hardware.
