[IC]:SI4438
[Frequency]:425~450.5MHz
[Power]:10~20dBm
[Distance]:2.5km
[Interface]:UART
[Weight]:Weight
[Introduction]:E30-433T20S3 is a UART module based on Silicon Labs' SI4438. It features half-duplex with transparent transmission, SMD packing, TTL level output, WOR and 433MHz working frequency. This product has been mass-produced and can be used in a wide range of environments and industries.
RF Parameter | Value | Remark |
---|---|---|
Working frequency | 425~450.5 MHz | Support ISM band |
Transmitting power | 10~20 dBm | Default: 20dBm(About 100mW) |
Receiving sensitivity | -114 dBm | Air data rate: 1k bps |
Air data rate | 1k~25k bps | Default: 1k bps |
Test distance | 2500m | In open and clear air, with maximum power, 5 dBi antenna gain, height of 2m, air data rate: 1k bps |
Hardware Parameter | Value | Remark |
---|---|---|
Size | 16 * 26 mm | - |
Antenna type | IPEX/External | - |
Communication interface | UART | Baud rate: 1200~115200, default: 9600 |
Package | SMD | - |
Buffer | 512 bytes buffer | Automatically sub-packaging with 58 bytes per package |
Electronic parameter | Min. | Typ. | Max. | Unit | Condition |
---|---|---|---|---|---|
Power supply | 2.3 | 5.0 | 5.0 | V | - |
Communication level | - | 3.3 | - | V | - |
Transmitting current | - | 89 | - | mA | 20dBm(100mW) |
Receiving current | - | 16 | - | mA | - |
Sleep current | - | 4 | - | μA | - |
Operating temperature | -40 | 20 | +85 | ℃ | - |
Operating humidity | 10 | 60 | 90 | % | - |
Storage temperature | -40 | 20 | +125 | ℃ | - |