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 ...
Using an Arduino Nano, ultrasonic sensor, and buzzer, it can sense objects in their way and provide an instant audible alert to them. So they can navigate independently. The best part of this blind ...
SparkFun's "Air Quality PM1/PM2.5/PM10 Sensor - BMV080 (Qwiic)" is breakout board for the Bosch Sensortec BMV080 particulate matter sensor which the ...
This project demonstrates a multi-sensor ESP32 setup that publishes data (temperature, humidity, motion, light levels) to an MQTT broker and subscribes to a command topic to toggle a relay/LED. It ...
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