KS103 ultrasonic ranging module

Output mode: digital output, directly output distance value mm or time value us according to different measurement instructions Measurement advantages: the ranging distance is 8m and the blind area is within 1cm. The average measurement accuracy is 3mm, up to 1mm And very sensitive. It has the performance advantages and quality assurance that other similar ultrasonic module products cannot achieve at present. Measuring distance, temperature, light intensity, three in one function.

Precautions: 1. Due to the characteristics of ultrasonic, the test effect is better for objects with flat surface and high hardness; For objects with irregular surface and soft surface, the test effect is limited;

2. Within the detection range, when the target object is perpendicular to the module, the measurement effect is good;

3. This module needs waterproof and fireproof baking;

4. Pure power supply can achieve good measurement effect; However, this module contains adjustable filter noise reduction technology, which can select different levels of noise reduction instructions according to the size of power supply noise, so as to make the test normal;

Ks101b / ks103 distinctive functional advantages:

1. Slavei2c technology with innovative characteristics is adopted to communicate with the host through standard I2C interface, which does not occupy the timer of single chip microcomputer, and can also share the bus with other devices Therefore, one host can connect up to 20 ks101b / ks103 modules The response time between each set is 2-33ms; When one module performs detection, the other modules automatically enter low-power sleep. After testing, only 3.0V voltage (about two dry battery voltages) is used to supply power to 20 KS10 products, which can still be detected This is not available in other modules

2. With temperature compensation function, the measurement accuracy is high. Using the ranging command of temperature correction, the accuracy in close range is 1mm and the error is 0.152mm/17cm; The figure shows the measurement accuracy within 20cm and 50cm, as shown below Another video shows that the accuracy of measuring the wall about 4m is still close to 1mm.

Ultrasonic ranging module hc-sro4

How to use this product: when a control port sends a high level above 10us, you can wait for the high level output at the receiving port As soon as there is an output, you can turn on the timer for timing. When this port becomes low, you can read the value of the timer. At this time, it is the time of this ranging, and then the distance can be calculated With such continuous periodic measurement, you can reach the value of your mobile measurement ~ ~ working principle of the module:

(1) IO trigger ranging is adopted to provide high-level signal of at least 10us;

(2) The module automatically sends 8 40KHz square waves and automatically detects whether there is signal return;

(3) When a signal returns, a high level is output through io. The duration of high level is the time from transmission to return Test distance = (high level time * sound speed (340m / s)) / 2;

Us-015 ultrasonic ranging module

1. Overview us-015 ultrasonic ranging module can realize 2cm ~ 4m non-contact ranging function. The power supply voltage is 5V and the working current is 2.2ma. It supports GPIO communication mode and works stably and reliably.

2. Interface description this module has one interface: 4Pin power supply and communication interface. 4 pin interface is a bent pin with a spacing of 2.54mm, as shown in the figure below:

Description