If you want to play with radar — and who could blame you — you can pretty easily get your hands on something like the automotive radar sensors used for collision avoidance and lane detection. But the ...

What is the HC-SR04? HC-SR04 is an ultrasonic ranging sensor that provides 2 cm to 400 cm non-contact measurement function. Is the HC-SR04 accurate? The ranging accuracy can reach to 3mm and effectual ...

The HC-SR04 sonar modules are available for a mere pittance and, with some coaxing, can do a pretty decent job of helping your robot measure the distance to the nearest wall. But when sellers on eBay ...

The libary only support the HC SR04 moduel with a 2 bits control interface. It uses the esp_driver_gpio component and esp_timer component.

The HC-SR04 ultrasonic range sensor is a pretty cool pre-wired module that you actually enjoy using when you start playing with electronics, microcontrollers, and robotics. As you might have noticed, ...