E32-433T37S LoRa solution long distance 5W TTL lora uart Wireless serial port module
[Carrier frequency]：410~441MHz
[Transmission power]：37dBm
[Communication distance]： 25km
[Product size]：50*30.9mm
[Product weight]：10.8±0.1g
[Introduction]：E32-900T20D is a wireless serial port module based on SEMTECH's LoRa solution. It has a variety of transmission modes, working at 862MHz~931MHz, LoRa spread spectrum technology, and TTL output.
| Main parameters | Performance | Remark | |||
| Minimu m value |
Typical value |
Maximu m value |
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| Working voltage (V) | 4.5 | 5~12v | 15 | ≥4.5V can guarantee the output power, the lower the voltage, the greater the supply current |
|
| Communication level (V) | - | 3.3 | - | There may be a risk of burning when using a 5V level, and a level conversion circuit is required |
|
| Working temperature (°C) | -40 | - | 85 | Industrial grade design | |
| Working frequency band (MHz) | 410 | - | 441 | Support ISM frequency band | |
| power consumption | 5V emission current (mA) |
2900 | 3100 | 3300 | Tested under 50 ohm impedance, the impedance mismatch may cause the current to be too large, please provide a power supply with at least 3.5A output when using 5V power suppl |
| 12V emission current (mA) |
900 | 1100 | 1300 | Tested under 50 ohm impedance, impedance mismatch may lead to excessive current, please provide at least 1.5A output power supply when using 12V power supply |
|
| Receive current (mA) | 38 | 43 | 48 | Supply voltage：12V DC | |
| Sleep current (uA) | - | 2 | - | Software shutdow | |
| Maximum transmit power (dBm) |
36 | 37 | 38 | - | |
| Receiving sensitivity (dBm) |
-126 | -128 | -130 | Air rate 2.4 kbps | |
| Air rate (bps) | 0.3k | 2.4k | 19.2k | User Programmable Control | |
| Reference distance | 25km | Clear sky, antenna gain 5dBi, antenna height 2.5 meters |
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| Launch length | 58 Byte | The maximum capacity of a single package will be automatically divided into packages after exceeding |
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| Cache capacity | 512 Byte | - | |||
| Modulation | LoRa | A new generation of LoRa modulation technology | |||
| Communication Interface | UART serial port | TTL level | |||
| Encapsulation | SMD | SMD | |||
| Interface | 2.54mm | - | |||
| Dimensions | 50*30.9mm | - | |||
| RF interface | IPEX/stamp hole | The characteristic impedance is about 50 ohms | |||
| Main parameters | Performance | Remark | |
| Minimum value | Maximum value | ||
| Power supply voltage（V） | 4.5 | 15 | Exceeding 15V may permanently burn the module |
| Blocking power（dBm） | - | 10 | High-power radio frequency do not communicate at close range |
| Working temperature（°C) | -40 | 85 | Industrial grade |
