E31-230T33D ( AX5243, 8.0km, UART, 225~237.6MHz, 24~33dBm,1.2k~70kbps, SMA-K ) Wireless Module

EBRF0007

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49,400 Ks

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Detail about E31-230T33D Wireless Module

E31-230T33D is a 2W wireless transceiver module operating at 225-237.6MHz (default 230MHz) with 3.3V and 5V supply voltages. It features FEC (Forward Error Correction) algorithm and data encryption & compression fucntion.

Specifications

  • IC : AX5243
  • Frequency : 225~237.6MHz
  • Power : 24~33dBm
  • Distance : 8.0km
  • Interface : UART

RF Parameter Value
Remark
Working frequency
225~237.6 MHz

Default:  230MHz

Transmitting power 24~33 dBm

Default:  33dBm(About 2W)

Receiving sensitivity -126 dBm

Air data rate: 1.2kbps

Air data rate 1.2k~70kbps

Default: 1.2kbps

Test distance 8000m

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

air data rate: 1.2kbps

Hardware Parameter Value
Remark

Size

37 * 60 mm

Without SMA

Antenna type

SMA-K

   

Communication interface

UART

Baud rate: 1200~115200, default: 9600

Package

DIP

   

Buffer

512  bytes buffer

Automatically sub-packaging with 43 bytes per package

Electronic parameter Min. Typ. Max. Unit Condition
Power supply
3.3 5.0 5.2 V
Communication level 2.5 3.3 3.6 V
Transmitting current
948 1030 1140 mA 33dBm(2W)
Receiving current
14
15 17 mA
Sleep current
4
5 6 μA
Operating temperature
-40 20
+85
Operating humidity
10 60
90 %
Storage temperature
-40 20
+125

E31-TTL-2W_Size

Pin No.
Pin Item Pin Direction Pin Application
1 M0

Input

weak pull-up)
   Work with M1 & decide the four operating modes. Floating is not allowed, can be ground.
2 M1

Input

weak pull-up)
   Work with M0 & decide the four operating modes. Floating is not allowed, can be ground.
3 RXD Input

   TTL UART inputs, connects to external TXD (MCU, PC) output pin.

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

4 TXD Output

   TTL UART outputs, connects to external RXD (MCU, PC) input pin.

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

5 AUX Output

   To indicate module's working status & wakes 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).

6 VCC Input    Power supply 2.8V-5.5V DC
7 GND Input    Ground
8 Fixing hole    Fixing hole
9 Fixing hole    Fixing hole
10 Fixing hole    Fixing hole
11 Fixing hole    Fixing hole
12 Fixing hole    Fixing hole
13 Fixing hole    Fixing hole
14 Fixing hole    Fixing hole
15 Fixing hole    Fixing hole

E51-TTL-2W

E31(230T33D)Y
窄带
FEC前向纠错
传输模式
应用标题_02
智能抄表-EN (1)
智能家庭_02
智能门锁-EN (4)
智能农业_11
工业遥控-EN (9)
温湿度传感器_03



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