EWM226-400T22S Module RF Lora sans fil pour tondeuse à gazon, bande de fréquence 433, prend en charge la mise à niveau en ligne IAP du port série
[Solution puce]：Solution LoRa
[Fréquence de fonctionnement]：410~510 MHz
[Puissance d'émission]：22 dBm
[Distance de communication]：5 km
[Dimensions]：14 x 17,5 mm
[Poids]：1,2 ± 0,1 g
[Introduction]：L'EWM226-400T22S est un module de transmission de données sans fil LoRa pour tondeuse à gazon, intégré à un émetteur-récepteur. Fonctionnant dans la bande de fréquences 410-510 MHz, il prend en charge plusieurs niveaux de puissance, la commutation libre des débits radio, une large gamme de débits en bauds sur le port série et une utilisation simple. Ce module LoRa est adapté aux applications de transmission haut débit telles que la sécurité intelligente, la lecture avancée de compteurs et les tondeuses à gazon.
Magasin officiel
| Pin number | Pin Name | Pin Direction | Pin Purpose |
| 1 | GND | - | Module ground wire |
| 2 | NC | - | Empty foot (not open for use, users do not need to care) |
| 3 | GND | - | Module ground wire |
| 4 | GND | - | Module ground wire |
| 5 | TX_EN | Output | Used with RX_EN to control external PA; left unconnected if not used |
| 6 | RX_EN | Output | Used with TX_EN to control external PA; left unconnected if not used |
| 7 | CLK | - | SWCLK Clock pin when program is loaded (suspended, user does not need to connect) |
| 8 | PART | - | SWDIO data pin when program is loaded (suspended, user does not need to connect) |
| 9 | NC | - | Empty foot (not open for use, users do not need to care) |
| 10 | NC | - | Empty foot (not open for use, users do not need to care) |
| 11 | NC | - | Empty foot (not open for use, users do not need to care) |
| 12 | NC | - | Empty foot (not open for use, users do not need to care) |
| 13 | GND | - | Module ground wire |
| 14 | VCC | - | Module power positive reference, voltage range: 2.7～5.5V DC |
| 15 | TXD | Output | TTL serial port output, connected to the external RXD output pin; |
| 16 | RXD | enter | TTL serial port input, connected to external TXD output pin; |
| 17 | M1 | Input (very weak pull-up) | Cooperate with M0 to determine the 4 working modes of the module (cannot be left floating, can be grounded if not used) |
| 18 | M0 | Input (very weak pull-up) | Cooperate with M1 to determine the 4 working modes of the module (cannot be left floating, can be grounded if not used) |
| 19 | TO | Output | Used to indicate the working status of the module; the user wakes up the external MCU, and outputs a low level during the power-on self-test initialization period; (can be left floating) |
| 20 | NC | - | Empty foot (not open for use, users do not need to care) |
| 21 | RESET | enter | Module reset pin, low level reset. |
| 22 | GND | - | Module ground wire |
| 23 | ON | - | Antenna interface (high frequency signal output, 50 ohm characteristic impedance) |
| 24 | GND | - | Module ground wire |