There are a million ways to use LEDs to make a clock. [sjm4306] chose to go a relatively conventional route, making something that approximates a traditional analog timepiece. However, he did it ...
led, and active buzzer. Which is going to be connected to the Arduino GPIO pins. /* ===== Ultrasonic Sensor Data ===== */ long duration = 0; // Duration of ultrasonic signal bounce-back (in ...
Optical sensors are a broad class of device for detecting light intensity. This can be just a simple component for notifying when ambient light levels rise above or fall below a prescribed level ...
Use the ESP32 as a software motion detector for whole house based on multipath interference in RSSI. Will detect human intruders when they cross the path between the ESP32 and other access points or ...
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