Datasheet

2
1. Introduction
The LED Strip Driver with 4-pin Grove interface provides easy connectivity to your standard Arduino device
or Seeed Stalker. It can help you control the luminance of a single-color LED strip, as well as the color and
the luminance of an RGB LED strip through Arduino or Seeeduino.
It has 2 terminals and 2 Grove interfaces. The power for LED strip comes in through the 2-pin terminal. And
the LED controlling voltages output through the 4-pin terminal. The 2 Grove interfaces are respectively
screen-printed “IN” (for controlling data input) and “OUT” (for controlling data shared with the next strip
driver).
It can drive an LED strip 1 to 2 meters long with 9 V, while 1 to 5 meters long with 12 V. The driver in
conjunction with the colorful LED strips can add a wonderful effect to indoor or outdoor usages.
Different version comparison
 Grove - LED Strip Driver V1.1：
1. SI5904 is used to level translation.
2. 78M05 is a Voltage Regulator, the output voltage is 5V.
 Grove - LED Strip Driver V1.2:
1. Replace SI5904 with two 2N7002.
2. The package of 100nF capacitors is 0603, not 0402.
3. 3.3K discrete resistors change to exclusion.
Note: clock/data IO requires 5V logic level.