THIS CODE WILL PROVIDE A DEMO USE OF THE HC-SR04 CONNECTED TO AN ARDUINO NANO (ATmega328p) THINGS YOU NEED FOR THIS DEMO: 1.) Install Arduino IDE 2.) Install CH340 Driver (Google how to install CH340 ...

Some of the best hacks are the ones which seem perfectly obvious in hindsight; a solution to the problem that’s so elegant, you wonder how it never occurred to you before. Of course we also love the ...

Sample code for SR04 ultrasonic ranging sensor. 注意：确保设备在3.3伏而不是5伏的电压下使用。Duo GPIO不能在5伏电平下使用。 NOTE: Ensure the device is capable of being driven at 3.3v NOT 5v. The Duo GPIO cannot be used at 5v.

Abstract: The automation of height-increasing bridges during floating events is a crucial engineering challenge in areas prone to flooding or water surges. It proposes a solution to adjust the bridge ...