Colorduino Dot Matrix Driver Board
Arduino does not have enough PWM pins to drive the 8x8 RGB LED matrix. That's why it needs external driver circuits. Colorduino is an Arduino Uno compatible 8x8 RGB LED driver board.
DM163 constant current LED driver provides peripheral PWM. This feature allows an 8-bit PWM signal to be applied to each red, green and blue channel. As a result, it is possible to generate 16 million different color signals for each pixel.
There is an Atmega328 microcontroller on the board. Thus, it is possible to program Colorduino using Arduino IDE. There is no programmer chip on this motherboard. You can choose an external USB to serial Converter to program the card. Colored boards can connect themselves to form a larger matrix. It is possible to connect these boards with 8-pin interactions. The cards use the I2C protocol to communicate.
There are two options for supplying the Colorduino. Firstly, it is possible to supply it to the board via an 8-pin interface using the VDD and GND pins, or the other option is to apply 6.5 - 7.5 V via the VIN and GND connectors.
NOTE:8x8 RGB LED Matrix not included.
Features:
- 8-bit color definition for each pixel
- Peripheral 16 Mhz PWM frequency
- Use without additional circuitry except the programmer
- Peripheral UART and I2C communication
- Fixed 100 mA supply for each of 24 channels
Technical specifications:
- Microcontrollers: Atmega328
- Input voltage (8-pin interface): 5 V
- Input voltage (power connector): 6.4 V - 7.5 V (max.)
- Programming interface: UART / ISP
- Communication interface: uart / i2c
- Current (except LED matrix): 20 mA
- Current (per channel): 500 mA
- Color resolution for each LED: 16 M
- Dimensions: 60 mm x 60 mm
- Weight: 37 g
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