it makes the Arduino connect to the wifi network using WiFi credentials. Once connected, it calls the “printWiFiStatus()” function to print connection details and calls the “sendSMS()” function to ...

Compared to analog voltage signals or digital communication, the current loop provides several advantages ... of this circuit would be to replace or to realize a smart sensor with Arduino. The 4…20 mA ...

Water level monitor using open-source microcontrollers (Arduino, ESP8266, ESP32) and ultrasonic sensors HC-SR04 / JSN-SR04T and similar with Trigger and Echo signals. Arduino Core & ESP-IDF ...

#define OLED_ADDR 0x3C // I2C address of SSD1306 display (common values are 0x3C or 0x3D) ...