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Electrical parameters: JSN-SR04T Wiring: + 5V (positive power supply) Trig (control side) RX Echo (the receiver) TX GND (negative)
Module size: 41mm * 28.5mm
Resolution: about 0.5cm
Angle: less than 50 degrees
Working temperature: -10 ~ 70 ℃
Storage temperature: -20 ~ 80 ℃
The basic working principle:
(1) Using IO port TRIG trigger location, to the high level signal of at least 10us;
(2) Module automatically sends 8 40KHz Fang Bo, automatic detecting whether a signal return;
(3) A signal return, a high level is output through the IO port ECHO, the time duration of the high level is ultrasonic from launch to return.
The test distance = (high level time * speed of sound (340M/S)) /2;
This module uses the simple method, a control port with a 10US above high level, can wait for high level output at the receiving port.
An output can drive the timer, when this port is low can read the timer value, this time for the location of the time, can be calculated distance.
So constantly cycle test, that can achieve the measurement of the value of your mobile.
Package Included:
2pcs JSN-SR04T Ultrasonic Distance Measuring Transducer Sensor Waterproof
ElectroBoogie
Reviewed in Canada on July 7, 2024
A great problem solver for your projects. I think the key to this particular model is that it is water resistant so it's a great candidate for water level projects or just outdoor projects in general.The boards themselves are nice and compact. There is lots of documentation and demos out on the web to get started. A key feature to note is that the board has 5 operating modes set by adding resistance or a short to R19 next to the comms header. For my testing i utilized mode 5 for full serial mode with the onboard chip providing all the calculations and serial out of the calculated distance. I utilized my ESP32 to echo the serial connection. with success. But there are a few other options for low power and direct read formats to help find a solution that works best for you. Accuracy was surprisingly good from my testing out of the box, but there was a lot of jitters and errors to account for in software for the best results. And if you want to get in the weeds you can always direct read off the pulse signal and reception timings with the other modes. The leads to the sensor head are pretty long to help position your project and the little snap pins help it lock into place.anyway, this is a great set of boards and compliment to anyone's maker project bin. The compact boards, battery friendly low power modes and weatherproof sensor opens the doors to lots of outdoorsy projects.
marcelino
Reviewed in Canada on July 16, 2024
I use to build car robotics using Arduino/raspberry pi. Since its waterproof, I am be able to use it for outdoor projects that are expose to harsh weather. I will recommend it.
Ghost Rider
Reviewed in the United States on October 30, 2023
I am using this module in AI robotic car project. I was blown away by the level of accuracy and response reaction this module has. I stepped up my project from Arduino Nano to a ESP32 take advantage of the hardware resources of thus module. Adafruit has some great libraries to get you going with some good sample coding for this module. It is moderately priced, but worth it! Very satisfied!
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