The topmost part of the PIR sensor consists of a lens with concentric grooves carved into the plastic. These are called Fresnel lens. The contours on this plastic helps in gathering parallel light ...
Notifications You must be signed in to change notification settings Welcome to the Arduino Motion Detection with PIR Sensor project repository! This repository ...
The Node MCU ESP8266 is a low-cost Wi-Fi microcontroller with a full TCP/IP stack and a microcontroller unit (MCU) based on the Node MCU architecture. The Node MCU ESP8266 is a popular choice for IoT ...
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