Wiring configuration to meet the SPE standard. You’ll find rather detailed hardware documentation and instructions to get started with the Arduino UNO R4 WiFi, including wiring and termination ...

Learn to build an RFID based attendance system using Arduino with step-by-step instructions, circuit diagrams, and complete code. This $35 DIY project replaces expensive commercial systems with ...

Uses RTC (Real Time Clock - DS3231) and NTP (Network Time Protocol) for maintaining time. OLED Display (128x64) for instant updates. ... Automate AC appliance control with Arduino UNO, DS3231 RTC, and ...

An Arduino Library for GSM SIM800L, compatible with Arduino UNO, MEGA, DUO, ESP8266, ESP32 - ankitghevariya/SIM800L. Skip to content. Navigation Menu Toggle navigation. Sign in Appearance settings.