Snootlab I2C Pwm Driver Kit
Based on the MAX7313 chip, this board provides 16 I/O ports I2C-compatible serial control.
Each I/O port can be individually configured as either an open-drain current-sinking output rated at 50mA and 5.5V, or a logic input with transition detection
The outputs are capable of driving LEDs, or providing logic outputs with external resistive pullup up to 5.5V.
PWM current drive is integrated with 8 bits of control. Four bits are global control and apply to all LED outputs to provide coarse adjustment of current from fully off to fully on with 14 intensity steps.(...)
The MAX7313 supports hot insertion.
On the board, footprint for two optionnals pull up resistors (on SDA & SCL) is provided.
So in case of several boards on the bus, one pair of pull up resistors can be easilly add on the I2C bus.
Using smd jumper combinations, the board can be configured to any one of 64 I2C addresses.
This way, you can control the intensinty of up to 16 x 64 = 1024 leds on each I2C line.
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