5 Adet Geekcreit® Ultrasonik Modül HC-SR04 Mesafe Ölçen Trandüser Sensör DC 5V 2-450cm
İncelemenin bir kısmı otomatik olarak çevrildi.
very nice. Good item and fast delivery. I ordered it on the 19th of March and it came on the 24th of March. Will order again if I use these for any permanent projects.
Parecem muito bons na qualidade, não testei ainda, o melhor que recebi em 20 dias em Rondônia, Bangoog é a melhor na qualidade de entrega....
They arrived fast and in good condition. I tested just one of them so far but works as expected. Easy to install and easy and to use it.
All the pins are looking perfect and not bent!!! That’s great and I’ve tested the components, they work!!!
The HC-SR04 sensor has 4 pins: Vcc (+ 5V), Trigger, Echo, GND. It sends a high pulse on the Trigger pin for at least 10 microseconds, at this point the sensor will send the sound ping and wait for the return of the reflected waves, the sensor will respond on the Echo pin with a high pulse of the duration corresponding to the travel of sound waves , after 38 milliseconds it is considered that no obstacle has been encountered. For safety we generally expect 50-60 millisecs to ensure that there is no interference with the next measurement.
Produto veio bem embalado, perfeito. Recomendo a compra.
Items came in time,no damaged modules. This batch I have not connected to power supply but since I've been ordered it before for my friend and everything works just fine.
Cheap and very useful for DIY robots.
nice
Fast delivery from UK warehouse. Works as expected. Quality is ok. I recommend.