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Waterproof Ultrasonic Module JSN-SR04T / AJ-SR04M 2 Water Proof Integrated Distance Measuring Transducer Sensor for Arduino

Waterproof Ultrasonic Module JSN-SR04T / AJ-SR04M Water Proof Integrated Distance Measuring Transducer Sensor for ArduinoProduct introduction:The new version of SR04M recently released solves the problem of blind data jumps and improves the stability of the product. JSN-SR04T / AJ-SR04M ultrasonic ranging module can provide 21cm-600cm non-contact distance sensing Function, ranging accuracy can be as high as 3mm; the module consists of an ultrasonic sensor and control circuit integrated with tran

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Waterproof Ultrasonic Module JSN-SR04T / AJ-SR04M Water Proof Integrated Distance Measuring Transducer Sensor for Arduino

Product introduction:
The new version of SR04M recently released solves the problem of blind data jumps and improves the stability of the product. JSN-SR04T / AJ-SR04M ultrasonic ranging module can provide 21cm-600cm non-contact distance sensing Function, ranging accuracy can be as high as 3mm; the module consists of an ultrasonic sensor and control circuit integrated with transceiver. The usage of mode one is compatible with our HC-SR04 module
There are three working modes to choose from in this module, and customers can switch or experiment according to their actual needs.
Features:
1. Small size and easy to use:
2. Low voltage and low power consumption:
3. High measurement accuracy;
4. Strong anti-interference;
5. Integrated closed waterproof probe with wire, suitable for wet and harsh measurement occasions
Product parameters:
Working voltage: DC: 3.0V-5.5V
Working current: less than 8mA
Probe frequency: 40kHz
The longest range: 600cm
Recent range: 20cm
Long range accuracy: ±1cm
Resolution: 1mm
Mileage angle: 75 degrees
Input trigger signal: 1. TTL pulse above 10uS; 2. Serial port sending command 0X55
Output echo signal Output pulse width level signal, or TTL
Wiring:
3-5. 5V (power +)
Trig (Control) RX
Echo (output) TX
GND (power-)
Working temperature: -20-+70 degree
Basic working principle:
(1) Use IO port TRIG to trigger distance measurement, and give a high level signal of at least 10us;
(2) The module automatically sends 8 40khz square waves, and automatically detects whether there is a signal return;
(3) When there is a signal return, a high level is output through the IO port ECHO, and the duration of the high level is the time from the ultrasonic wave to the return. Test distance = (high level time * speed of sound (340M/S))/2;






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