[Fréquence]:410.125~493.125MHz
[Puissance d'émission]:30 dBm
[Distance de communication]: 10 km
[Taille]:30 * 51mm
[Poids du produit]:7.7±0.1g
[Introduction]:E22-400T30E est une nouvelle génération de module sans fil LoRa. Il est conçu sur la base du module de port série sans fil (UART) de la puce RF de SEMTECH et du schéma de puce SX1268 original de SEMTECH. Il a une variété de méthodes de transmission, fonctionne dans la bande de fréquence (410,125 ~ 493,125 MHz) (par défaut 433,125 MHz), technologie de spectre étalé LoRa, sortie de niveau TTL, compatible avec la tension de port IO 3,3 V et 5 V.
Pin number | Pin name | Pin Orientation | Pin usage |
1 | AUX | Output | It is used to indicate the working state of the module; the user wakes up the external MCU, and outputs a low level during the power-on self-test initialization; (can be left floating) |
2 | VCC | Enter | Power input 5.0V |
3 | M0 | Input (very weak pull-up) | Cooperate with M1 to determine the 4 working modes of the module(can not be suspended, if not used, it can be grounded) |
4 | GND | - | Power reference ground |
5 | M1 | Input (very weak pull-up) | Cooperate with M0 to determine the 4 working modes of the module(can not be suspended, if not used, it can be grounded). |
6 | NC | - | - |
7 | NC | - | - |
8 | NC | - | - |
9 | GND | - | Power reference ground |
10 | SWD_DIO | Input/Output | Program download data interface (the module needs to be reset or chip erased before SWD programming). |
11 | RXD | enter | TTL serial port input, connect to external TXD output pin |
12 | SWD_CLK | Input/Output | Program download clock interface (the module needs to be reset or chip erased before SWD programming) |
13 | TXD | output | TTL serial output, connect to external RXD input pin |
14 | NC | - | NC pin, this pin needs to be left floating (for subsequent expansion) |
15 | GND | - | Power reference ground |
16 | NC | - | - |
17 | NC | - | - |
18 | GND | - | Power reference ground |
19 | NC | - | - |
20 | NC | - | Power reference ground |
21 | GND | - | Power reference ground |
22 | RESET | enter | Input high level module enters hardware reset state, input low level module returns to normal working state, this function is used for reset operation in emergency |
23 | NC | - | - |
24 | VCC | enter | Power input 5.0V |
25 | NC | - | - |
26 | GND | - | Power reference ground |
27 | GND | - | Power reference ground |
28 | NC | - | - |
29 | GND | - | Power reference ground |
30 | NC | - | - |
31 | NC | - | - |
32 | NC | - | - |
33 | NC | - | - |
34 | GND | - | Power reference ground |
35 | GND | - | Power reference ground |
36 | USB_D- | Input / Output | D- for external USB devices |
37 | GND | - | Power reference ground |
38 | USB_D+ | Input / Output | D+ for external USB devices |
39 | VCC | Input | Power input 5.0V |
40 | GND | - | Power reference ground |
41 | VCC | Input | Power input 5.0V |
42 | NC | - | - |
43 | GND | - | Power reference ground |
44 | NC | - | - |
45 | RS232_RXD | Input | External TXD of other RS232 devices |
46 | NC | - | - |
47 | RS232_TXD | Output | External TXD of other RS232 devices |
48 | NC | - | - |
49 | RS485_A | Input / Output | Connect to the A terminal of other RS485 devices |
50 | GND | - | Power reference ground |
51 | RS485_B | Input / Output | Connect to the B terminal of other RS485 devices |
52 | VCC | Input | Power input 5.0V |