This manual provides a detailed introduction to the TTCCTT4400--1166TT33//1166RR33 ultrasonic sensor, including circuit principle, working principle, application circuit, etc.
The Yixuetong TCT40-16T3/16R3 ultrasonic sensor manual describes the sensor's structure, specifications and how to integrate it with a microcontroller. It includes details on the transmitter and receiver circuits, component values and the overall layout.
The document explains the distance measurement principle using 40 kHz ultrasonic pulses, the processing of received echo signals, and methods to avoid interference from residual echoes. It also provides example code snippets for generating the pulse and handling the received signal. This manual is written in Chinese.
| Operating frequency | 40 kHz |
|---|---|
| Capacitance | 200 pF |
The sensor emits a 40 kHz ultrasonic pulse, starts a timer, and measures the time until the reflected echo is received; distance is calculated as s = 340 t/2.
By delaying the detection of the received signal for a short period after transmission, the residual echo is ignored, allowing only the reflected signal to be processed.