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AlainS
2025-08-04 21:23:42
When ordering, because similar name, I thought that it was the US-100 from Adafruit that works for 5V and 3.3V . In fact, it is the regular HC-SR04 that you can get for 10 times less money.
Pradeep
2025-02-10 11:21:39
I got this to turn on lights based on distance. I tried with Arduino UNO, it requires 3 jumper cables if you want to keep measuring range to 1m, for 3 m range you need to connect fourth range pin to voltage.It was extremely easy to setup, the code has plenty of tutorials online. The seller has included enough information about the sensor on the page. I would recommend them to add a demo code in description.
DJ
2025-02-07 14:59:59
I may just not know enough about electronics to make it work, but I put it into by electronic breadboard with + 5V on pin 1, ground on pin 4, and connected my multimeter to pin 3 and pin 4. Putting my hand in front of the sensor did not change the voltage output, never mind in a linear fashion. As I said, it might just be my lack of knowledge, but I had no luck confirming the function of this board.
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