介绍了几种40kHZ 超声波发射电路的原理图和说明，了解内部原理和电路。-Introduction fired several 40kHz ultrasonic circuit schematic diagram and descr iption to understand the internal principles and circuitry.

超声波传感器 TCT40-16TR 程序 电路，超声波传感器 TCT40-16TR 程序 电路-ultrasonic sensor TCT40-16TR programme circuit，ultrasonic sensor TCT40-16TR programme circuit

关于利用TCT40-16ＦＳ进行超声波测距的原理图，实物图，源码，看完之后对超声波测距将不再陌生．-Conducted on the use of ultrasonic ranging TCT40-16FS schematic, physical map, source, after reading will not be a stranger on the ultrasonic ranging.