The are only 2 GND GPIO pins on the ESP32 board, we therefore have to share one between the LED and the buzzer. This is the prototype version of the circuit before it was soldered together on a PCB.

This project monitors air quality using an ESP32, a CCS811 sensor for eCO2 and TVOC, and displays the results on an OLED screen. The system also provides a web interface for remote monitoring and ...

Arduino Nicla Sense Env is a new sensor module with temperature, humidity, and gas (TVOC, NO2, O3) sensing that follows the launch of the Arduino Nicla Sense ME (Motion & Environment) module over ...

Both sensors measure rate of change; they just measure the rate of change for different things. In practice, that means that an accelerometer will measure the directional movement of a device but ...

Sensors are devices that detect and quantify physical aspects of the world around us. The measurement can either be read directly or converted to a signal for processing by electrical, hydraulic ...

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 ...

You might think aftermarket parking sensors could be a bit of an unusual car upgrade at first, a bit like aftermarket reversing cameras, and you’d be right. Across ...

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