[Interface de communication]：RS485
[Fréquence de fonctionnement]：2,4 GHz
[Protocole Bluetooth]：BLE5.2
[Distance de communication]：560 m
[Dimensions]：102 x 28 x 27 mm
[Introduction]：Le module sans fil EWD104-BT57(xxx) est un module convertisseur Bluetooth RS485/RS232 vers BLE basé sur le protocole Bluetooth BLE5.2. Compact, il consomme peu d'énergie et fonctionne sur la bande de fréquence 2,4 GHz. Ce module utilise des commandes AT universelles et est simple et rapide à utiliser. Il est largement utilisé dans la domotique, la sécurité domestique, les soins de santé, les appareils électroménagers intelligents, les accessoires et télécommandes, l'automobile, l'éclairage, l'Internet industriel, l'acquisition de données intelligentes, le contrôle intelligent et bien d'autres domaines.
Magasin officiel| Main parameters | performance | Remark | |
| Minimum | Maximum | ||
| Supply voltage (V) | 0 | 28 | Over 28V may permanently burn the module |
| Blocking power (dBm) | - | 10 | The probability of burning is lower when used at close range |
| Operating temperature (°C) | -40 | 85 | Industrial Grade |
| Main parameters | performance | Remark | |||
| Minimum | Typical Value | Maximum | |||
| Operating voltage (V) | 5 | 12 | 28 | ≥5.0V can guarantee output power, exceeding 28V may permanently burn the module | |
| Operating frequency band (MHz) | 2400 | - | 2480 | Support ISM band | |
| Transmit power | -20 | 20 | 23 | - | |
| Power consumption | Emission current (mA) | - | 80 | - | Peak transient current @23dBm |
| Receive current (mA) | - | 5 | - | - | |
| Receiving sensitivity (dBm) | - | -95dBm | - | ||
| Operating temperature (°C) | -40 | - | +85 | Industrial-grade design | |
| Main parameters | describe | Remark |
| Reference distance | 560m | Clear and open environment, height 2 meters, 23dBm, airspeed 1Mbps |
| Bluetooth Protocol | BLE 5.2 | - |
| EWD104-BT57(485) communication interface | RS485 | - |
| EWD104-BT57(232) communication interface | RS232 | - |
| Dimensions | 102*28*27mm | ±0.2mm |
| RF Interface | High School | Equivalent impedance is about 50Ω |
| Hardware Interface | 4P Terminal Blocks | 4Pin 3.81mm pitch |
| Product Weight | 31g | ±2g |