360° Arduino radar with 2xHC-SR04 sensors

Head to to make your PCB. $50 coupon for new users This time I will show you how to make Arduino-based ultrasonic radar. We could call it a Sonar because it is using sound, however, sonars are generally considered for use underwater. In this case, it is interesting that are used two sensors to scan the entire 360-degree space. Ultrasonic sensor modules are mounted on a servo motor that rotates between 0 and 180°. This method also simplifies the design because you don’t have the problem of cables getting tangled around the servo. The process starts with a test of the servo rotation. First, it rotates a 0° to 180° and then 180° to 0° to check the correct movement of the headset. The process starts with a test of the servo rotation. First, it rotates a 0° to 180° and then 180° to 0° to check the correct movement of the headset. The process starts with a test of the servo rotation. First, it rotates a 0° to 180° and then 180° to 0° to check the correct movement of the headset. T