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DIY Ultrasonic Rangefinder Kit ST11F02 Reversing Radar Electronic Training DIY Parts

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                  Principle:
                  Using ultrasonic to measure the distance of obstacles, the ultrasonic rangefinder sends a 40KHz ultrasonic pulse through the ultrasonic transmitter, and uses the ultrasonic receiver to receive the transmission. By measuring the time interval between transmission and reception, the distance can be measured by conversion. The 4-digit digital tube displays the distance in meters to millimeters. Because the PCB board can also transmit ultrasonic waves, this ultrasonic ranging kit has a distance, generally within 25CM will not be able to distinguish the ultrasonic reflection signal and the transmitting head is transmitted to the receiver via the PCB Ultrasonic signal of the head. The buzzer is used to indicate the distance, the longer the distance, the longer the beep interval, and the shorter the beep interval, similar to car reversing.

                  Note:
                  1. This product is a spare part, which requires the buyer to weld and assemble himself. The program has been written into the single-chip microcomputer, and the welding and assembly can work.
                  2. The kit does not include an external power supply. Please purchase it if you need it.
                  Feature:
                  Power supply voltage: DC 4.5-6V
                  Board size: 5.2*5.2cm
                  Detection distance: 25-400 cm (indoor)
                  Welding precautions:
                  The ultrasonic transmitter and receiver are distinguished according to the characters on the back. The transmitter head marked T and the receiver head marked R are on the circuit board. The transmitter and receiver heads are parallel to each other and the heads are aligned. Do not shorten the pins of the transmitter and receiver, the pins can be directly soldered to the back of the circuit board.
                  Package includes:
                  1 x DIY KIT

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