MaxBotix MB7566 SCXL-MaxSonar-WRL Ultrasonic Sensor - IP67 PVC Housing, 10m Range

The MB7566 provides three simultaneous output formats. The pulse-width output pin delivers a scalable pulse proportional to distance. The analog voltage output provides a ratiometric analog voltage (Vcc/512) per inch. The RS232 serial output transmits ASCII characters 'R' followed by a four-digit range in millimeters ending with a carriage return. You can use any one of these outputs based on your microcontroller or PLC interface preference.

Yes, the MB7566 is designed for challenging outdoor environments. Its IP67-rated PVC housing provides protection against dust ingress and temporary immersion in water up to 1 meter for 30 minutes. The sensor's firmware and physical design also reduce the impact of condensation and frost when operated continuously, making it reliable in high-humidity and variable weather conditions.

The sensor operates from a 2.7V to 5.5V DC supply with an average current draw of 68mA. For connection, provide V+ (2.7-5.5V) and GND. For the output, choose one interface: connect the PWM pin to a digital input on an Arduino for pulse-width reading, the analog output to an ADC pin for voltage reading, or the serial output (TX) to a UART RX pin on an Arduino/Raspberry Pi. Ensure logic level compatibility if using 3.3V systems.

The sensor features real-time automatic calibration (RAC) that continuously adjusts for changes in supply voltage, humidity, and ambient acoustic noise. This built-in firmware feature typically eliminates the need for manual calibration, providing stable and accurate readings in dynamic environments. For most applications, no user-initiated calibration is required.