Click board comes with the header strips soldered. 8x8 R click mikroBUS™. The Click accessory modules plug into the mikroBUS sockets in MikroElektronika microcontroller development boards. The add-on board features MAX7219 8-digit LED display driver module and 64 Red LED diodes. The 8 x 8 G Click™ has a 5 V power supply and communicates to the MCU via the SPI Interface.. 8 x 8 R Click is an add-on board in mikroBUS™ form factor Serial 8 x 8 Red LED display matrix Analogue and digital brightness control On-chip BCD code-B decoder 5 V power supply can be used with 3.3 V Microcontrollers Supported in all MikroElektronika compilers mikroBUS™ is specially designed pinout standard with SPI, I2C, Analogue, UART, Interrupt, PWM, Reset and power supply pins