E31-230T17D ( AX5243, 2.0km, UART, 225~237.6MHz, 7~17dBm,1.2k~70kbps, SMA-K ) Wireless Module

EBRF0005

New product

15,800 Ks

More info

Detail about E31-230T17D Wireless Module

E31-230T17D is a 17dBm wireless transceiver module. It operates at 225-237.6MHz, provides an easy way to use& low-power solution for wireless data transmission. The outstanding advantages of narrow-band transmission is more concentrated power density, longer transmission distance, better anti-interference performance.

Specifications

  • IC : AX5243
  • Frequency : 225~237.6MHz
  • Power : 7~17dBm
  • Distance : 2.0km
  • Interface : UART

RF Parameter Value
Remark
Working frequency
225~237.6 MHz

Default:  230MHz

Transmitting power 7~17 dBm

Default:  17dBm(About 50mW)

Receiving sensitivity -126 dBm

Air data rate: 1.2kbps

Air data rate 1.2k~70kbps

Default: 1.2kbps

Test distance 2000m

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

air data rate: 1.2kbps

Hardware Parameter Value
Remark

Size

21 * 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
2.3 3.3 5.2 V
Communication level 2.5 3.3 3.6 V
Transmitting current
59 64 70 mA 17dBm(50mW)
Receiving current
10
11 12 mA
Sleep current
3
4 5 μA
Operating temperature
-40 20
+85
Operating humidity
10 60
90 %
Storage temperature
-40 20
+125

E32 (433T20DC)


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 2.1V-5.5V DC
7 GND Input     Ground
8 Fixing hole     Fixing hole
9 Fixing hole     Fixing hole
10 Fixing hole     Fixing hole

E51-TTL-50

E31-(230T17D)Y
窄带
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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