A01NYUB Waterproof Ultrasonic Distance Sensor

The DFRobot A01NYUB is a waterproof ultrasonic distance sensor with a sealed transmitter and receiver (IP67). It measures distances from 28 cm to 7.5 m and therefore suits outdoor use and humid environments, for example the water level in a tank. The processing takes place in the sensor, the distance arrives as a finished value via UART at 9600 baud.

Recommended alternative for short distances from 3 cm: A02YYUW Waterproof Ultrasonic Distance Sensor

Recommended Accessories:

• 95x65x55mm IP67 Plastic Enclosure
• Dupont Jumper Cable Set 20cm 60 Pieces.

Features:

• Water and dust tight to IP67
• Removable bell mouth: the range of 7.5 m applies with the bell mouth, beam angle 55° with and 40° without it (DFRobot)
• Distance as a finished value via UART, no time measurement in the microcontroller needed
• Measuring range applies to flat objects, blind zone 0 to 28 cm
• Pin RX selects between processed value and real-time value, procedure in the DFRobot wiki
• Temperature changes the speed of sound, air flows from fans can deflect the measurement (DFRobot)
• Example code for Arduino and Raspberry Pi in the wiki

Application Examples:

• Level in water tanks and cisterns
• Reversing and distance warning
• Distance measurement outdoors
• Monitoring in humid environments

Documentation:

• DFRobot Wiki A01NYUB (SEN0313)

Technical Data:

• Manufacturer: DFRobot
• Manufacturer SKU: SEN0313
• Type: A01NYUB
• Operating voltage: 3.3 to 5 V
• Interface: UART, 9600 baud
• Measuring range (flat object): 28 to 750 cm
• Blind zone: 0 to 28 cm
• Resolution: 1 mm
• Accuracy: ±1 cm
• Response time: 100 ms
• Frequency: 40 kHz
• Current consumption: at most 15 mA on average
• Beam angle: 55° with bell mouth, 40° without
• Operating temperature: -15 to 60 °C
• Storage temperature: -25 to 80 °C
• Cable length: 320 mm
• Protection class: IP67
• Connections: VCC, GND, RX, TX
• Weight: 42 g

Scope of Delivery:

• 1× A01NYUB waterproof ultrasonic distance sensor
• 1× Adapter cable PH2.0-4P to 4-pin 2.5 mm connector