A configurable controller for ARGB fans.
Current setup includes 6 fans, each containing 8 individually addressable RGB LEDs (NeoPixel), using 5V 3-pin ARGB connector.
The hardware intended for this project is Arduino Nano with ATmega328P microcontroller.
The Arduino board and the LEDs are powered from a single SATA connector:
- 12V and GND are connected to VIN and GND on Arduino board;
- 5V and GND are connected to 5V and GND pins of ARGB connectors.
Additionally, the Arduino board is connected directly to the USB pins on the motherboard for serial communication.
With ATmega328P microcontroller, there comes a set of constraints on the project:
- SRAM: 2048 bytes
- EEPROM: 1024 bytes
The size of the EEPROM limits the number of LED data points that can be persistently stored in the microcontroller. When using 2 bytes per single LED colour (565 RGB), 10 frames can be defined (6 fans * 8 LEDs * 10 frames * 2 bytes = 960 bytes).
