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Hrsc04 ultrasonic reversing distance meter
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1. Basic requirements (1) with reflective ultrasonic ranging function, measuring distance 0.1M ~ 1.0m; (2) measuring distance accuracy: error ± 5cm; (3) automatic voice real-time broadcast, measuring distance value: several points and meters; (4) real time broadcast time interval ≤ 10s; (5) measuring distance: 0.1M ~ 5.0m; Chinese character reminder display: in the range of 0.1M ~ 0.5m, display "dangerous distance" and indicate with red LED light; distance: 0.1M ~ 0.5m; distance: 0.1M ~ 0.5m, display "dangerous distance" and indicate with red LED light When the distance is between 0.5m and 1.0m, "keep distance" is displayed and indicated by yellow LED; when the distance is more than 2.0m, "safe distance" is displayed and indicated by green LED. 2. Play part
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