Двухцветная светодиодная матрица 32x8 c интегрированным микроконтроллером Holtek HT1632C. Обмен информацией  с дисплеем через интерфейс SPI. 

Характеристики:

• Size: 241.30 (L) × 86.36 (W) × 24.70 (H)±0.2mm
• HT1632C-based 32*8 LED dot-matrix info board
• Light-emitting diameter: 3mm
• Available light-emitting color: red, green and yellow
• 16-level PWM brightness control
• Either one of the two 16-pin male sockets can be used to connect drive board, which powers the 32*8 LED, as well as send data and control signal in a SPI-like mode
• Two +5V auxiliary power supply terminals provided
• Up to 2 boards are recommended to connected in series to display more character.

Документация:

• Описание на сайте производителя (Sure Electronics)
• Описание контроллера HT1632C
• Пример использования (Arduino Playground)

Комплектация:

• 3208 Bicolor LED 3mm Dot Matrix Display Info Board × 1
• Power cord × 2
• 16-pin IDC cable × 1