SparkFun BOB-13884 LED Driver Breakout Board
SparkFun BOB-13884 LP55231 LED Driver Breakout Board is a self-contained solution for developing and deploying the nine-channel I2C LED controller. The breakout is equipped primarily with the LP55231 LED controller IC plus three RGB LEDs. The board features pads and jumpers for replacing the onboard LEDs with external ones and configuring the I2C bus. This allows for daisy-chaining up to four LP55231s.
This SparkFun breakout drives LEDs using Pulse Width Modulation (PWM), so it is well-suited for variable intensity and color-mixing applications. Originally designed for mobile device and automotive applications, the LEDs aren't meant to be overwhelmingly bright and have some unique qualities.
First, an onboard charge-pump power supply allows the board to drive LEDs with a higher forward voltage than the power supply voltage. Second, the LP55231 has an LED offload engine. This LED-specific microcontroller allows it to perform LED operations without requiring assistance from the host microcontroller. The MCU can independently perform LED operations like chases, blinks, and fades.
Features
- Self-contained solution for developing and deploying the nine-channel I2C LED controller
- Breakout is equipped with LP55231 LED controller IC plus three RGB LEDs
- Board features pads and jumpers for replacing the onboard LEDs with external ones and configuring the I2C bus
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Additional Resources
Opublikowano: 2019-05-13
| Zaktualizowano: 2023-08-08