Maker and STEM How To

WLED is a powerful RGB LED controller for ESP8266 and ESP32 boards. In this how-to we learn how to install WLED and control a string of RGB LEDs.

The Arduino IDE 2.0 has been released, and what a release it is. We go through the new features and use it to create a fun project with the venerable Arduino Uno.

Learn how to read the 4 or 5-band resistor color codes that show Ohm value. See specific codes for 10K, 220 Ohm and other popular resistor capacities.

Multimeters enable us to measure voltages, currents and test circuits for issues. In this how to, we give you the basic steps to start checking your circuits.

Resistance is futi… Voltage divided by Current