LoRa

Ebyte E22-400T37S LoRa solution 433/470MHz 5W high power Relay networking LoRa wireless module

[Product weight]:10.3±0.1g

[Transmission power]:37dBm

[Communication distance]: 25km

[Product size]: 50*30.9mm

[Introduction]:E22-400T37S is a wireless serial port module (UART) based on SEMTECH's LoRa solution. It has multiple transmission methods, works in the (410.125~493.125MHz) frequency band (default 433.125MHz), LoRa spread spectrum technology, TTL level output, supports 4 5 V - 15V supply voltage.

 New Generation Of LoRa Spread Spectrum Technology


E22-400T37S New Generation LoRa Spread Spectrum Technology

E22-400T37S Small Volume

E22-400T37S Fast Speed

E22-400T37S Low Power Consumption

E22-400T37S long distance

E22-400T37S Automatic Relay Network

E22-400T37S Communication Key Customol

E22-400T37S LBT Function

E22-400T37S RSSI Signal Strength

E22-400T37S Remote Configuration

E22-400T37S5W High Power Ultra-long Distance Transmission

E22-400T37SOverpressure Warning Indication Function

E22-400T37SOver Temperature Protection Function

E22-400T37S More Useful Features

Hardware Features


E22-400T37S Application Scenario


Main parameterperformanceRemark
minimUmTypical
value
maximu
m
Operating voltage (V).4.55~12 V15

4. 5V guarantees output power, and the lower the voltage, the greater the supply current

Communication level (V)-3.3-

Using 5V levels may pose a risk of burnout, requiring
level shifting circuitry

Operating temperature (°C).-40-85

Industrial-grade design

Operating frequency band
(MHz).
410.125-493.125

ISM bands are supported


power
consumpion




5V transmit current (mA)290031003300

Test at 50 ohms impedance, impedance mismatch may cause large current, use 5V power supply,please provide at least 3.5A output power supply


12V transmit current (mA)90011001300

Test at 50 ohms impedance, impedance mismatch may cause large current, use 12V power supply, please provide at least 1.5A output power supply

Receive current (mA).114315

-

Sleep current (uA).-2-

Software shutdown

Maximum transmit power(dBm).
363738

-

Receive sensitivity (dBm).
-126-128-130

Air rate 2.4 kbps


Air rate (bps).
0.3k2.4k62.5k

User programmatic control


Reference distance
20km

Clear sky, Chengdu downtown, antenna gain 5dBi,
antenna height 2.5 meters, airspeed 2.4K

Emission length
240 Byte

Subpackets can be sent by command setting
32/64/128/240 byte

Cache capacity
1000 Byte

-

Modulation mode
LoRa

A new generation of LoRa modulation technolog

Communication interface
UART serial port

TTL leve


Encapsulation method
SMD

SMD

Interface mode
2.54mm

-

Form factor
50*30.9mm

-

RF interfac
IPEX/stamp hole

The characteristic impedance is about 50 ohms



E22-400T37S

Note: The module must be connected to a 50 ohm impedance antenna when sending, and sending without load may cause permanent damage to the module ! !


serial numberPinsPin orientationremark
1GNDinput

Module ground

2GNDinput

Module ground

3VCCinput

The module power supply is positively referenced, and the voltage range is 4 515V DC

4VCCinput

The module power supply is positively referenced, and the voltage range is 4 515V DC

5RESETinput

Module reset pin

6AUXoutpu

Used to indicate the working status of the module; The user wakes up the external MCU and the output is low during POST initialization Level; (Can be suspended)


7TXDoutput

TTL serial output, connected to external RXD input pin

8RXDinput

TTL serial output, connected to external RXD input pin

9M1Input (very weak pull-up)

In conjunction with M0, determine the 4 working modes of the module (non-suspended,
groundable if not used).

10M0Input (very weak pull-up)

In conjunction with M1, determine the 4 operating modes of the module (non-suspended,groundable if not used).

11GNDinput

Module ground

12GNDinput

Module ground

13ANToutput

Antenna interface (high frequency signal output, 50 ohm characteristic impedance).

14GNDinput

Module ground

15GNDinput

Module ground

16GNDinput

Module ground

17GNDinput

Module ground

18GNDinput

Module ground

19GNDinput

Module ground

20STATEoutput

Module status indication output, if no dangling processing is used

21485-ENInput/output

The enable control pin of the external 485 chip can be used if floating processing is not used

22NC

No need to care, dangling handling

23NC

No need to care, dangling handling

24NC

No need to care, dangling handling

25NC

No need to care, dangling handling

26SWDlO

No need to care, dangling handling

27GNDinput

Module ground

28SWCLK

No need to care, dangling handling



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