[Type d'interface]:port série UART
[Fréquence de fonctionnement]: 410,125 ~ 509,125 MHz
[Puissance de transmission]:22 dBm
[Distance de communication]:2,5 km
[Poids du produit]:1.2±0.1g
[Taille]: 20*14mm
[Introduction]:E52-400NW22S est un module réseau LoRa MESH à port série sans fil basé sur la technologie à spectre étalé LoRa. La puissance de sortie maximale est de +22 dBm, le débit d'air maximum peut atteindre 62,5 K et le débit en bauds maximum pris en charge est de 460 800 bps. La bande de fréquence de travail par défaut de ce module LoRa est de 433,125 MHz. Il adopte la nouvelle technologie de réseau LoRa MESH et possède les fonctions de décentralisation, d'auto-routage, d'auto-réparation du réseau et de routage multi-niveaux. Il convient aux maisons intelligentes et capteurs industriels, systèmes de sécurité d'alarme sans fil et bâtiments. Solutions d'automatisation, agriculture intelligente et autres scénarios d'application.
Pin number | Pin name | Pin direction | Pin usage |
1 | PB3 | input Output | Some function indication pins, high level by default, active low level (connected to test suite LED2) |
2 | PB4 | input Output | RF transmission indication pin, default high level, active low level (connected to test suite LED1) |
3 | PB5 | input Output | Not used yet, NC recommended |
4 | PB6 | input Output | Not used yet, NC recommended |
5 | PB7 | input Output | Not used yet, NC recommended |
6 | PB8 | input Output | Not used yet, NC recommended |
7 | PA0 | input Output | Default is high level, pull it low when power on to enter the Bootloader (connected to the test suite KEY button) |
8 | PA1 | input Output | Not used yet, NC recommended |
9 | PA2 | input Output | UART_TXD, serial port transmit pin |
10 | PA3 | input Output | UART_RXD, serial port receiving pin |
11 | PA4 | input Output | Not used yet, NC recommended |
12 | PA5 | input Output | Not used yet, NC recommended |
13 | GND | input Output | Ground wire, connected to the power reference ground |
14 | ANT | input Output | Antenna interface, 50Ω characteristic impedance (connected to SMA interface of test kit) |
15 | GND | input Output | Ground wire, connected to the power reference ground |
16 | PA8 | input Output | Not used yet, NC recommended |
17 | NRST | input | Reset pin, default high level, active low level (connected to test suite RST button) |
18 | PA9 | input Output | Not used yet, NC recommended |
19 | PA12 | input Output | Not used yet, NC recommended |
20 | PA11 | input Output | Not used yet, NC recommended |
21 | PA10 | input Output | Not used yet, NC recommended |
22 | PB12 | input Output | Not used yet, NC recommended |
23 | PB2 | input Output | Not used yet, NC recommended |
24 | PB0 | input Output | Not used yet, NC recommended |
25 | PA15 | input Output | Not used yet, NC recommended |
26 | PC13 | input Output | Not used yet, NC recommended |
27 | GND | input Output | Ground wire, connected to the power reference ground |
28 | VDD | input | Power supply VDD, maximum input voltage 3.6V, recommended to be powered by 3.3V LDO |
29 | SWDIO | - | debug pin |
30 | SWCLK | - | debug pin |