Ultrasimple LED module

[albertinjo]

In gamebuino trailer I saw a module that had 2 flashing white leds on it. I suppose it is just 2 LEDs tied to A4 and A5 pins of arduino used as digital outputs to flash LEDs???

[rodot]

Yeah, just 2 leds and 2 resistors soldered on a small piece of proto board. I used it to see when something is happening on the I2C bus.

[ripper121]

For led resistor Calc:
http://www.hebeiltd.com.cn/?p=zz.led.re ... calculator

Pleas do it for GB and LED Security