The Dimmer Plug uses a PCA9635 (PDF) to drive and dim up to 16 LEDs independently:
This plug will drive single LEDs with limiting resisitors (up to 25 mA, up to 5V). By adding external MOSFETs, transistors, or darlingtons, much larger currents and voltages can be used to drive several LEDs in parallel or in series, power LEDs, incandescent lamps, motors, etc.
An I2C bus running at 3.3V is used for I/O, with all the power and signal lines brought out to to both sides of the board to allow daisy-chaining with other I2C-conformant boards.
There are two solder jumpers to configure each plug for one of the following 7-bit I2C addresses:
Dimensions: 21.1 x 24.1 mm
CadSoft EAGLE design files: see below.
This plug can be operated at 5V as well as 3.3V.
This board uses the conventions of a JeePlug and can be used with the ports on a JeeNode. It can also be used with other boards and MCU’s, if you hook it up properly and adapt the interface code for it.
How to Get It¶
Related Weblog Posts¶
- 2010-03-20 - Dimmer Plug