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E32-400T20S

[IC] : SX1278

[Frequency] : 410~525MHz

[Power] : 10~20dBm

[Distance] : 3km

[Interface] : UART

[Introduction] : E32 series are UART wireless modules based on SX1276/SX1278 RF IC of SEMTECH with transparent transmission and LoRa spread spectrum technology. The modules 3.3V TTL output. SX1276/SX1278 support LoRa TM technology, The LoRa TM DSSS (direct sequence spread spectrum) technology features long range and strong anti-interference as well as strong data confidentiality. SX1276/SX1278 are considered as a milestone in terms of low speed data communication.

E32-400T20S-EN硬件特点应用标题_02智能抄表_01智能家庭-EN (2)智能农业_11智能油田-EN (12)工业遥控_09环境监测-EN (10)温湿度传感器_03

RF ParameterValue
Remark
Working frequency
410~525 MHz

Default: 470MHz

Transmitting power10~20 dBm

Default: 20dBm(About 100mW

Receiving sensitivity-146 dBm

Air data rate: 0.3kbps

Air data rate0.3k~19.2kbps

Default: 2.4kbps

Test distance3000 meter

In open and clear air, with maximum power, 5dBi antenna gain, height of 2m,

air data rate: 2.4kbps


Hardware ParameterValue
Remark
Size
16 * 26 mm

   

Antenna typeIPX / Stamp hole

   

Communication interfaceUART

Baud rate: 1200~115200, default: 9600

PackageSMD

   

Buffer512 bytes buffer

Automatically sub-packaging with 197 bytes per package


Electronic parameterMin.Typ.Max.UnitCondition
Power supply
2.35.05.2V
Communication level2.53.33.6V
Transmitting current

96

106116mA20dBm(100mW)
Receiving current14
1516mA

Sleep current345μA
Operating temperature
-4020
+85
Operating humidity
1060
90%
Storage temperature
-4020
+125


E30-433T20S3_Size

Pin No.
Pin ItemPin DirectionPin Application
1GND
-

Ground

2GND-

Ground

3GND-

Ground

4GND-

Ground

5M0

Input

(weak pull-up)

Work with M1 & decide the four operating modes;

Floating is not allowed, can be ground.

6M1

Input

(weak pull-up)

Work with M0 & decide the four operating modes;

Floating is not allowed, can be ground.

7RXDInput

TTL UART inputs, connects to external TXD output pin;

Can be configured as open-drain or pull-up input.

8TXDOutput

TTL UART outputs, connects to external RXD input pin

Can be configured as open-drain or push-pull output.

9AUXOutput

To wake up the external MCU, during the procedure of self-check initialization, the pin

outputs low level; Can be configured as open-drain output or push-pull output; Floating

is allowed.

10VCC-

Voltage positive reference of module; Power supply 2.3V ~ 5.2V DC
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