{"title":"HC-SR04 Ultrasonic Sonar Distance Sensor + 2 x 10K resistors","handle":"hc-sr04-ultrasonic-sonar-distance-sensor-2-x-10k-resistors","url":"/products/hc-sr04-ultrasonic-sonar-distance-sensor-2-x-10k-resistors","description":"The HC-SR04 is an ultrasonic distance sensor that measures distances from approximately 2 cm to 400 cm (best results between 10–250 cm). Widely used in robotics, automation, interactive art, and motion sensing projects.\n\nThe sensor requires 5V power and the Echo return signal is 5V logic. Two 10 kΩ resistors are included for use as a voltage divider, converting the 5V Echo signal to a safe 2.5V for 3.3V devices like Raspberry Pi.\n\nSpecifications\n\n\nSensor – HC-SR04 ultrasonic ranging module\n\nRange – 2–400 cm (effective: 10–250 cm)\n\nPower – 5V DC\n\nTrigger – 3.3V or 5V logic\n\nEcho – 5V logic (use included resistors as divider for 3.3V devices)\n\n\nCompatible With\n\nArduino\nRaspberry Pi (with voltage divider)\nCircuitPython and MakeCode\n\n\nPackage Contents\n\n1× HC-SR04 ultrasonic sensor\n2× 10 kΩ resistors\n","vendor":"Adafruit","product_type":"physical","in_stock":true,"options":[],"variants":[{"id":7827,"title":"Default Title","sku":"AF-3942","price":7.71,"on_sale":false,"in_stock":true,"available_quantity":105,"option1":"Default Title"}]}