Hardware Setup (docs/Hardware.md) Pinout diagrams for Arduino Uno/Nano and ESP8266 NodeMCU, wiring schematics for common sensors (DHT11, HC-SR04, PIR), and power-supply recommendations.

SIM800L GSM Module Connections (Requires Level Shifting) The SIM800L module needs special attention because it operates at 3.3V logic levels while Arduino uses 5V. We need a voltage divider circuit to ...

20 Arduino based project ideas with codes and circuit diagram. I performed all of these at my university. - Releases · almdpro/20-Arduino-based-project-ideas-with-codes-and-circuit-diagram ...