Type
Other (please specifiy) - ModuleDJLK-003B2 Ultrasonic Distance Measurement Transducer Sensor for Arduino, Ultrasonic Wave Detector, Ranging Module
I need it, especially to connect to arduino Mega, for a project about another experimental module to detect: flow, temperature, level and pressure, and yeah i didnt find some about it, so cuold you help me, especially the visual or the schematic part, i would be so happy. And thanks for everything.
Modbus OUTPUT 5V
Type: Ultrasonic distance sensor
Supply voltage: 5V DC
Current consumption: 20 mA
Detection range: 25 – 600 cm
Accuracy: 1 – 2 cm
Frequency: 40 kHz
Response time: 100 ms
Beam angle: 20°
Communication: RS485
Serial configuration: 9600 bps, 8N1, no parity
Cable length: 37 cm
Connection colors: Red (VCC), Black (GND), White (A), Green (B)
Operating temperature: -15°C to 60°C
Humidity: <80% RH
Protection rating: IP67 (waterproof)
Dimensions: 51 x 35 x 72 mm
Weight: 61 g
Product reference: DJLK-003B2
Good evenning (USA Central) Edexy_Company,
I do not know if this will be helpful as I believe it may be common knowledge but my Engineer Son, Josh states this.
Because this specific module is a generic industrial-style component from direct-import vendors, there is no official Fritzing part file (.fzpz) available for download.
However, you can wire and represent the 5V Modbus variant of the DJLK-003B2 with an Arduino Mega using standard components in Fritzing or on a breadboard.
Hardware Connection Schematic
Since the module outputs Modbus via RS485 differential signals ($A+$ and $B-$), it cannot be connected directly to the Arduino Mega’s digital pins. You need a TTL to RS485 transceiver module (such as a MAX485 module).
Cheers, MAK 
well thanks, i would really like to know about this connection, so its posiible to know how to do it? i really dont know how to represent this ultrasonic sensor, or if is possible to build something like that, but thanks again for the information.
