int led = 13; // the pin that the LED is atteched to int sensor = 2; // the pin that the sensor is atteched to int state = LOW; // by default, no motion detected int val = 0; // variable to store the ...

Measuring the speed of a rotating object is a common requirement. Knowing the speed of table and ceiling fans, as well as ...

The hardware was assembled by connecting the Arduino UNO R4 WiFi, the PZEM 004T, the current transformer, and the OLED ...

if (!es8311_i2s.begin(I2S_MODE_STD, 44100, I2S_DATA_BIT_WIDTH_16BIT, I2S_SLOT_MODE_STEREO, I2S_STD_SLOT_LEFT)) { ...

Photoshop cc tutorial showing how to recreate the dramatic, split-flap display from the "Non-Stop" movie trailer. Leavitt fires back at reporter over question on Trump, 'potential war crimes' James ...

Drones are widely used across several fields, including aerial photography, surveying, inspection, agriculture, and ...

This DIY 6-DOF robot arm project details a two-year build cycle using 3D printed parts, custom electronics, and over 5,000 ...

RyzoBee today announced that its Root Series is planned to launch on Kickstarter in Q2 2026 for the North American and European markets ...

A primary student learns first aid skills under the guidance of a volunteer from a local Red Cross society in Handan, Hebei province, on Thursday. [Photo by Hao Qunying/for China Daily] With wider ...