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E22-400T22S LoRa spread spectrum UART LoRa solution RF low power consumption





[Introduction]:E22-400T22S is a wireless serial port module (UART) based on SEMTECH's LoRa solution radio frequency chip. It has a variety of transmission modes, working at 410.125MHz~493.125MHz, (default 433.125MHz), LoRa spread spectrum technology, TTL level output, compatible with 3.3V and 5V IO port voltages.

Operating parameter Performance Remark
Operating frequency 410.125~493.125MHz Support ISM band
Tx power 22 dBm -
Receiving sensitivity -147dbm Air data rate is 2.4kbps
Air data rate 0.3k~62.5kbps Controlled via user’s programming
Distance for reference 5500m Test condition:clear and open area, antenna gain: 5dBi,antenna height: 2.5m,air data rate: 2.4kbps
Size 16 * 26 mm -
Antenna IPEX/stamp hole 50 ohm impedance
Communication interface UART -
Package SMD -
Main parameter Min. Typ. Max. Unit Remark
Operating voltage 2.3 5.0 5.5 V ≥5.0 V ensures output power
Communication level - 3.3 - V For 5V TTL, It is recommended to add level conversion
TX current - 133 - mA Instant power consumption
RX current - 11 - mA -
Sleep current - 469 - μA Software is shut down
Operating temperature -40 - +85 -