My Journey into the Cloud (22): ESP32 sensor node with web server Prototype of a sensor node that transmits measured values to the cloud. In parts 20 and 21 of this series we saw how to use a web page ...

ESP32 Microcontroller (Arduino Code): Collects environmental sensor data (sound, gas), communicates via Wi-Fi, plays audio, and provides alerts. Python Server: Processes audio data from the ESP32, ...

ESP32 Touchless temperature sensor – Display, Speak & upload to cloud Think of the body temperature scanner that you have at the gate, checks temperature, displays it , announces whether it is safe or ...

ESP32 Touchless temperature sensor – Display, Speak & upload to cloud Think of the body temperature scanner that you have at the gate, checks temperature, displays it , announces whether it is safe or ...

Connect Dallas temperature sensor to your ESP32, see wiring diagram below under images. (3.3V, GND, D2 and 4.7K ohm resistor between 3.3V and D2) Change variables at line 8-10 for your Wi-Fi ssid, ...

How it works is simple: you can track devices using Bluetooth on the ESP32, and through a combination of presence and signal strength, you can define a sensor that changes to an "on" state when ...

T he ESP32 is an incredibly versatile microcontroller, and so long as you have the wires and the hardware to connect it to, ...