E48-433M20S SPI Wireless module small size low power consumption, 433MHz RF transceiver CMT2310A chip
[Chip solution]：CMT2310A
[Working frequency]： 410~450MHz
[Transmit power]：20dBm
[Communication distance]： 3.5km
[Product size]： 20*14mm
[Product weight]：1.2±0.1g
[Introduction]：E48-433M20S is a pure hardware, cost-effective wireless data transmission module developed by Chengdu Ebyte based on Huapu Microelectronics' CMT2310A chip solution. The wireless module supports a maximum transmit power of 20dBm, and users can set lower output power to reduce power consumption. The module works in the frequency band, covering the commonly used 433MHz frequency band. The module is a pure hardware RF transceiver module that uses an SPI interface and requires an external MCU driver.
| Electrical Parameter | Unit | Value | Remarks |
| Operating Voltage | V | 2.7V~5.5V | ＞3.3V Guaranteed output power |
| Communication level | V | 3.3 | Using 5V TTL has the risk of burning out |
| Emission current | mA | 110 | Instantaneous power consumption, @5V power supply |
| receive current | mA | 12 | @5V power supply |
| Sleep current | uA | 3.5 | Software shutdown |
| Operating temperature | ℃ | -40 ~ +85 | Industrial grade |
| Main parameters | value | Remark |
| Dimensions | 26*16mm | - |
| weight | 2.0g | ±0.1g |
| Launch length | 58 Byte | Subpackaging 58/116 bytes can be set through instructions to send |
| cache capacity | 1000 Byte | - |
| Modulation | GFSK | - |
| Communication Interface | UART serial port | TTL level |
| Packaging method | SMD type, stamp hole, pin spacing 1.27mm | - |
| Antenna interface | IPEX/stamp hole | - |
| RF parameters | unit | value | Remark |
| Working frequency | MHz | 410～450 | Support ISM band |
| Transmit power | dBm | 20±1 | Multi-level adjustable according to configuration parameters |
| blocking power | dBm | 0～10.0 | Less likely to be burned if used at close range |
| Receive sensitivity | dBm | -120±2 | Air rate 2.4kbps |
| Measured distance | km | 3.5km | Sunny and open, antenna gain 3.5dBi, antenna height 2.5 meters, air rate 2.4kbps |
| Air speed | kbps | 2.4～500 | Control based on configuration parameters |
