Connect the PIR sensor to digital pin 7 of Arduino. Connect the servo motor to digital pin 8. Connect the DC motor via the L298N motor driver. Connect the Bluetooth module HC-05 to the Arduino for ...

Developed by Australian medtech firm Adherium, the Hailie Smartinhaler takes the form of a Bluetooth-enabled sensor that clips over an inhaler and communicates data on the use of the device to the ...

it better to use the rechargeable 9V battery. Here, you can find that i am powering the ultrasonic sensor directly from the Arduino GPIO pins to avoid connection complexity, especially in Smaller ...

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 ...

SparkFun’s “Air Quality PM1/PM2.5/PM10 Sensor – BMV080 (Qwiic)” is breakout board for the Bosch Sensortec BVM080 particulate matter sensor which the German company claims is the world’s smallest and ...

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 ...