[IC] : AX5243
[Frequency] : 225~237.6MHz
[Power] : 7~17dBm
[Distance] : 2.0km
[Interface] : UART
[Weight] : 6.8±0.1g
[Introduction] : 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.
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 | 5.0 | 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 | ℃ |
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. |
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 |
Order online |
【eBay】:https://www.ebay.com/usr/cdebyte |
【Aliexpress】:https://www.aliexpress.com/store/2798183 |
【Alibaba】:https://www.alibaba.com |
For batch order/customized product |
【Sales hotline】:+86-28-61399028 Ext.812 |
【E-mail】:service@cdebyte.com |
Technical support |
【Submit online】:http://www.ebyte.com/en/apple-technology.aspx |
【E-mail】:support@cdebyte.com |
Model | IC | Interface | Frequency Hz | Power dBm | Distance km | Air data rate | Package | Size (mm) | Feature | Manual | Sample |
---|---|---|---|---|---|---|---|---|---|---|---|
E31-433T30S | UART | AX5243 | 433M | 30 | 8.6 | 1.2k~70k | SMD | 25*40.5 | Narrow-band transmission,WOR | ||
E31-DTU(230N33) | 232/485 | AX5243 | 230M | 33 | 8.0 | 1.2k~70k | Screwing/DB9 | 82*62*25 | Diffraction , WOR | ||
E31-DTU(230N37) | 232/485 | AX5243 | 230M | 37 | 15 | 1.2k~70k | Screwing/DB9 | 124*105*25 | Diffraction , WOR | ||
E31-230T33D | UART | AX5243 | 230M | 33 | 8.0 | 1.2k~70k | DIP | 37*60 | Diffraction , WOR | ||
E31-DTU(230N17) | 232/485 | AX5243 | 230M | 17 | 2.0 | 1.2k~70k | Screwing/DB9 | 82*62*25 | Diffraction , WOR | ||
E31-DTU(230N27) | 232/485 | AX5243 | 230M | 27 | 5.0 | 1.2k~70k | Screwing/DB9 | 82*62*25 | Diffraction , WOR | ||
E31-230T17D | UART | AX5243 | 230M | 17 | 2.0 | 1.2k~70k | DIP | 21*36 | Diffraction , WOR | ||
E31-433T17S | UART | AX5243 | 433M | 17 | 2.0 | 1.2k~70k | SMD | 17*30 | Narrow-band transmission |