1 How to use 5V Relay with Arduino to turn ON and OFF AC bulb or DC load
Offered as a tutorial for switching a light bulb with a relay from an Arduino, which the title shows can involve an AC bulb on mains wiring.
Channel
Robojax
4 recommended videos. Channel on YouTube
2 3V 5V Low Control High Voltage 12V 24V 36V E-switch MOSFET Module For Arduino
Linked with little comment as a possible way to switch loads, and also as a source for the schematic of a cheap optocoupler and MOSFET module.
3 How to use LCD LCD1602 with I2C module for Arduino
Recommended to Arduino newcomers as a clear account of driving an LCD, including the I2C adapter that simplifies the wiring, and one reader had success straight away.
4 How to setup and use ESP32 Cam with Micro USB WiFi Camera
A setup walkthrough for running the ESP32-CAM web server sketch in the Arduino IDE, used by newcomers, with one person succeeding and others needing help along the way.
