[Type d'interface]:Port série UART
[Puissance d'émission]: 20 dBm
[Distance de communication]: 2,0 km
[Dimensions]:26 x 16 mm
[Poids du produit]:2,1± 0,1 g
[Introduction]:L'EWM528-2G4NW20SX est un module réseau sans fil LoRa MESH à port série basé sur la technologie LoRa à spectre étalé. Il offre une puissance de sortie maximale de +27 dBm, un débit aérien maximal de 253 kbit/s et un débit en bauds maximal pris en charge de 2 000 000 bps. Il fonctionne sur une plage de fréquences de 2 400 à 2 500 MHz (2 400 MHz par défaut). Ce module sans fil utilise la nouvelle technologie LoRa MESH, offrant des fonctionnalités telles que la décentralisation, le routage automatique, l'auto-réparation du réseau et le routage multi-niveaux. Il est adapté aux maisons intelligentes et aux capteurs industriels, aux systèmes d'alarme sans fil, aux solutions domotiques, à l'agriculture intelligente et à d'autres applications.
| Pin number | Pin Name | Pin Direction | Pin Purpose |
| 1 | PB4 | Input/Output | Not used yet, NC is recommended |
| 2 | PB7 | Input/Output | RF transmission indication pin, default high level, low level is effective (connected to test kit LED1) |
| 3 | NC | Input/Output | Not used yet, NC is recommended |
| 4 | NC | Input/Output | Not used yet, NC is recommended |
| 5 | NC | Input/Output | Not used yet, NC is recommended |
| 6 | NC | Input/Output | Not used yet, NC is recommended |
| 7 | PC1 | Input/Output | Not used yet, NC is recommended |
| 8 | NC | Input/Output | Not used yet, NC is recommended |
| 9 | PB6 | Input/Output | UART_TXD, serial port sending pin |
| 10 | PB5 | Input/Output | UART_RXD, serial port receiving pin |
| 11 | PC0 | Input/Output | Not used yet, NC is recommended |
| 12 | NC | Input/Output | Not used yet, NC is recommended |
| 13 | GND | Input/Output | Ground wire, connected to the power reference ground |
| 14 | ON | Input/Output | Antenna interface, 50Ω characteristic impedance (connected to the SMA interface of the test kit) |
| 15 | GND | Input/Output | Ground wire, connected to the power reference ground |
| 16 | NC | Input/Output | Not used yet, NC is recommended |
| 17 | RESET | enter | Reset pin, default high level, low level is effective (connected to the test kit RST button) |
| 18 | NC | Input/Output | Not used yet, NC is recommended |
| 19 | NC | Input/Output | Not used yet, NC is recommended |
| 20 | NC | Input/Output | Not used yet, NC is recommended |
| 21 | NC | Input/Output | Not used yet, NC is recommended |
| 22 | PD4 | Input/Output | EWM521-2G4NW20SX is not used yet, NC is recommended |
| 23 | PB3 | Input/Output | Not used yet, NC is recommended |
| 24 | PD6 | Input/Output | Not used yet, NC is recommended |
| 25 | PD7 | Input/Output | Not used yet, NC is recommended |
| 26 | PA7 | Input/Output | Not used yet, NC is recommended |
| 27 | GND | Input/Output | Ground wire, connected to the power reference ground |
| 28 | VDD | enter | Power supply VDD, power supply design according to different models |
| 29 | SWS | - | Debug pins |
| 30 | PB2 | - | Not used yet, NC is recommended |