SEN0352

SKU:SEN0352 Introduction DFRobot URM13 is an ultrasonic ranging sensor with open single probe. This sensor supports TRIG Pulse-triggered ranging(SR04 compatible), UART and I2C, which brings more possibilities for actual using scenarios. With a small and compact body, the sensor works well with 3.3V or 5V mainboards like Arduino, Raspberry Pi, easy to use and integrate into various applications. Besides, the UART mode employs standard Modbus-RTU protocol and integrates receive/send control output to allow users to easily expand RS485 interface using external RS485 transceiver. URM13 is positioned to be a professional and advanced ultrasonic sensor. The integration of new precision circuit design and smart detection algorithms on the sensor makes it much more smaller and lighter while still excellent in sensitivity. At the same time, URM13 sensor is able to automatically detect the environment and electrical noise, and complete the dynamic adjustment and calibration of sensor parameters in real-time, which ensures that it can keep stable performance in various complex application scenarios. URM13 provides users with two built-in measuring ranges for meeting different application requirements： 1. 15~150cm small range with up to 50Hz detecting frequency, suitbale for indoor robot obstacle avoidance, etc. 2. 40~900cm large range with 10Hz frequency and high sensitivity, applicable for open field scenarios or projects that requires high accuracy and long ranging distance. The two detecting ranges can be triggered repeatedly in actual use to realize the measurement of whole range. Specification • • • • • • • • • • • • • Power Supply: 3.3~5.5V DC Max Instantaneous Work Current: 350mA Effective Measuring Range: 15cm～900cm Distance Resolution: 1cm Distance Error: ±1% Temperature Resolution: 0.1℃ Temperature Error: ±1℃ Measuring Frequency: 10Hz Operating Temperature: -10℃～＋70℃ Operating Humidity: RH