This is a simple module consists of three LEDs arranged in a traffic light formation together with current limiting resistors. This module can work with both 5V and 3.3V. The LEDs are active high and they can be controlled individually. This module works well with digital GPIO pins from Raspberry Pi, Arduino, Tinker Board etc. There are 4 header pins, one for each LED and another one for Ground. This module is breadboard friendly, so you can stick it vertically to any regular breadboard.
This mini traffic light is great for learning electronics or as a general indicator.
