Part description

This part controls one or more RGB LEDs according to commands coming in through an I2C interface.

External interfaces

JP01

6-pin AVR ISP connector

JP02

LED connector

JP02.1

LED common anode

JP02.2

red cathode

JP02.3

green cathode

JP02.4

blue cathode

JP03

Power and data connector

JP03.1

Vcc (+5V)

JP03.2

GND

JP03.3

I2C SCL

JP03.4

I2C SDA

JP03.5/6

NC

Notes

  1. Connect JP03.3 to JP03.4 with a jumper before providing power to the device to enable test mode. In test mode, colors are automatically cycled continously without data input. To disable test mode, first disconnect power supply, remove jumper, connect to master device.

  2. The interface electronic inverts the output state of the microcontroller. This has to be taken into account when developing firmware for the microcontroller.


Revisions

CL-B03.01

Current development revision.

Images


CategoryElectronics


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AlarmClock/Parts/CL-B03 (last edited 2008-01-19 12:07:37 by ThiemoNordenholz)