Ebyte E22-400T37S 25KM 5W SX1262 Lora Modül
| Main parameter | performance | Remark | |||||
| minimUm | Typical value |
maximu m |
|||||
| Operating voltage (V). | 4.5 | 5~12 V | 15 |
≥4. 5V guarantees output power, and the lower the voltage, the greater the supply current |
|||
| Communication level (V) | - | 3.3 | - |
Using 5V levels may pose a risk of burnout, requiring |
|||
| Operating temperature (°C). | -40 | - | 85 |
Industrial-grade design |
|||
| Operating frequency band (MHz). |
410.125 | - | 493.125 |
ISM bands are supported |
|||
| power consumpion |
5V transmit current (mA) | 2900 | 3100 | 3300 |
Test at 50 ohms impedance, impedance mismatch may cause large current, use 5V power supply,please provide at least 3.5A output power supply |
||
| 12V transmit current (mA) | 900 | 1100 | 1300 |
Test at 50 ohms impedance, impedance mismatch may cause large current, use 12V power supply, please provide at least 1.5A output power supply |
|||
| Receive current (mA). | 11 | 43 | 15 |
- |
|||
| Sleep current (uA). | - | 2 | - |
Software shutdown |
|||
| Maximum transmit power(dBm). | 36 | 37 | 38 |
- |
|||
| Receive sensitivity (dBm). | -126 | -128 | -130 |
Air rate 2.4 kbps |
|||
| Air rate (bps). | 0.3k | 2.4k | 62.5k |
User programmatic control |
|||
| Reference distance | 20km |
Clear sky, Chengdu downtown, antenna gain 5dBi, |
|||||
| Emission length | 240 Byte |
Subpackets can be sent by command setting |
|||||
| Cache capacity | 1000 Byte |
- |
|||||
| Modulation mode | LoRa |
A new generation of LoRa modulation technolog |
|||||
| Communication interface | UART serial port |
TTL leve |
|||||
| Encapsulation method | SMD |
SMD |
|||||
| Interface mode | 2.54mm |
- |
|||||
| Form factor | 50*30.9mm |
- |
|||||
| RF interfac | IPEX/stamp hole |
The characteristic impedance is about 50 ohms |
|||||
Note: The module must be connected to a 50 ohm impedance antenna when sending, and sending without load may cause permanent damage to the module ! !
| serial number | Pins | Pin orientation | remark |
| 1 | GND | input |
Module ground |
| 2 | GND | input |
Module ground |
| 3 | VCC | input |
The module power supply is positively referenced, and the voltage range is 4 5～15V DC |
| 4 | VCC | input |
The module power supply is positively referenced, and the voltage range is 4 5～15V DC |
| 5 | RESET | input |
Module reset pin |
| 6 | AUX | outpu |
Used to indicate the working status of the module; The user wakes up the external MCU and the output is low during POST initialization Level; (Can be suspended) |
| 7 | TXD | output |
TTL serial output, connected to external RXD input pin |
| 8 | RXD | input |
TTL serial output, connected to external RXD input pin |
| 9 | M1 | Input (very weak pull-up) |
In conjunction with M0, determine the 4 working modes of the module (non-suspended, |
| 10 | M0 | Input (very weak pull-up) |
In conjunction with M1, determine the 4 operating modes of the module (non-suspended,groundable if not used). |
| 11 | GND | input |
Module ground |
| 12 | GND | input |
Module ground |
| 13 | ANT | output |
Antenna interface (high frequency signal output, 50 ohm characteristic impedance). |
| 14 | GND | input |
Module ground |
| 15 | GND | input |
Module ground |
| 16 | GND | input |
Module ground |
| 17 | GND | input |
Module ground |
| 18 | GND | input |
Module ground |
| 19 | GND | input |
Module ground |
| 20 | STATE | output |
Module status indication output, if no dangling processing is used |
| 21 | 485-EN | Input/output |
The enable control pin of the external 485 chip can be used if floating processing is not used |
| 22 | NC |
No need to care, dangling handling |
|
| 23 | NC |
No need to care, dangling handling |
|
| 24 | NC |
No need to care, dangling handling |
|
| 25 | NC |
No need to care, dangling handling |
|
| 26 | SWDlO |
No need to care, dangling handling |
|
| 27 | GND | input |
Module ground |
| 28 | SWCLK |
No need to care, dangling handling |
