EWD104-BT57(485) RS485 bluetooth wireless converter Small size Rail mounted installation Low cost flexible application
[Communication interface]：RS485
[Operating frequency]： 2.4GHz
[Bluetooth protocol]： BLE5.2
[Communication distance]：560m
[Product size:]：102*28*27mm
[Introduction]：EWD104-BT57(485) wireless module is a RS485 to BLE Bluetooth converter module based on BLE5.2 Bluetooth protocol. It is small in size, low in power consumption, and works in the 2.4GHz frequency band. The Bluetooth converter module uses universal AT commands and is easy and fast to operate. The Bluetooth converter module can be widely used in home automation, home security, personal health care, smart home appliances, accessories and remote controls, automobiles, lighting, industrial Internet, smart data acquisition, smart control and other fields.
| 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 |
