DFRobot
Gravity: Digital Blue LED Light Module
This Blue LED light module has a shiny white color. It is ideal for Arduino starters. This module can be easy to be plugged on IO/Sensor expansion shield...
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This Blue LED light module has a shiny white color. It is ideal for Arduino starters. This module can be easy to be plugged on IO/Sensor expansion shield.
NOTE: This LED is wired to light up when the Signal pin is set to low. The reason for this is to prevent the LED from demanding too much current from the microcontroller and damaging the I/O.
If you wish to make this LED light up with a logic high, you can switch the Signal wire (Green) with the GND wire (Black) and the Voltage wire (Red) to the Signal wire's original spot.
SPECIFICATIONS
- Type:Digital
- LED light module pin definition : (1) control terminal (2) power supply (3) ground
SHIPPING LIST
- Sensor x1
- Digital Sensor Cable (SKU:FIT0011) x1
Jargon buster
Plain-language definitions for the technical terms used above.
- GND
- GND is the ground or reference connection (0 V) for a circuit. When connecting two devices together, their grounds must be joined so both agree on what counts as a low or high signal.
- LED
- A light-emitting diode (LED) is a small electronic component that emits light when current flows through it in the correct direction. Because it only conducts one way, its polarity matters, and a through-hole LED must be soldered the correct way around to light up.
- microcontroller
- A microcontroller is a small computer on a single chip that runs a stored program and controls connected inputs and outputs such as buttons, sensors, displays and communication interfaces. In a device built around one, it is the part that executes the code and coordinates the device's behaviour.
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