E22-230T37S 230 MHz, 5 W haute puissance, réseau de relais, module LoRa
[Interface de communication]：port série UART
[Fréquence porteuse]： 220,125 ~ 236,125 MHz
[Puissance d'émission]：37 dBm
[Distance de communication]：25 km
[Introduction]：E22-230T37S est une nouvelle génération de module sans fil LoRa. Il s'agit d'un module de port série sans fil (UART) pour les solutions SEMTECH LoRa. Il dispose d'une variété de méthodes de transmission, fonctionne dans la bande de fréquence 230 MHz, sortie de niveau TTL, prend en charge la tension d'alimentation 4,5 V-15 V et le module LoRa adopte une nouvelle génération de technologie à spectre étalé LoRa.
| Main parameters | Performance | Remarks | |||
| Minimum | Typical | Maximum | |||
| Working voltage (v） | 4.5 | 5~12 V | 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 (℃) | -40 | - | 85 | industrial design | |
| Working frequency band (MHz) | 220.125 | - | 236.125 | Support ISM frequency band | |
| power consumption | 5V emission current (mA) | 2900 | 3100 | 3300 | Tested under 50 ohm impedance, impedance mismatch may lead to excessive current, please provide at least 3.5A output power supply when using 5V power supply |
| 12V emission current (mA) | 900 | 1100 | 1300 | Tested under 50 ohm impedance, the impedance mismatch may cause the current to be too large, please provide a power supply with at least 1.5A output when using 12V power supply | |
| Receive current (mA) | 38 | 43 | 48 | - | |
| Sleep current (uA) | - | 2 | - | software shutdown | |
| Maximum transmit power (dBm) | 36 | 37 | 38 | - | |
| Blocking power (dBm) | - | - | 10 | High-power radio frequency do not communicate at close range | |
| Receiving sensitivity (dm) | -126 | -128 | -130 | Air rate 2.4 kbps | |
| Air rate (bps) | 0.3k | 2.4k | 62.5k | User Programmable Control | |
| Reference distance | 20km | Sunny and open, urban area of Chengdu, antenna gain 5dBi, antenna height 2.5 meters, airspeed 2.4K. | |||
| launch length | 240 Byte | Subpackage 32/64/128/240 bytes can be sent by command setting | |||
| cache capacity | 1000 Byte | - | |||
| Modulation | LoRa | A new generation of LoRa modulation technology | |||
| Communication Interface | UART serial port | TTL level | |||
| Encapsulation | patch | SMD | |||
| Interface | 2.54mm | - | |||
| Dimensions | 50*30.9mm | - | |||
| RF interface | IPEX/stamp hole | The characteristic impedance is about 50 ohms | |||