Monitoring and Phase-three Electrical Grid Voltage Control through Smartphones

Let's see how to send GET data via a GET request to a web server using the Ethernet W5100 Shield.

Wiring W5100 Ethernet Shield with ThingSpeak IOT Server

This sketch requires the use of a W5100 or W5500 ethernet adapter and optionally supports either an Adafruit ADS1115 ADC and MCP4725 DAC dev

Update: Arduino W5100 Ethernet (Clone) and other nightmares... ChatGPT

Demonstrating W5100 module is the better Ethernet connectivity module as it leaves more memory for our program

SD memory card + LCD Display + solar panel + RTC DS1302 + Thernistor 10K

DMX by Ethernet with Wiznet w5100