Simply plug the Matrix Module into the Female pins by orientating the locator pin, (in the middle on the module's edge), with the locator pin circle on the bottom of the adaptor. The device is now ready for testing.
0.28"8x8 LED Dot Matrix Unit 1.9" 2088B Common Anode/Cathode for Microcontroller
MAX7219 8x8 LED Dot Matrix Module
LED Dot Matrix Display 8X8/32 MAX7219 Dot Matrix Display Module for Raspberry Pi
8X8/32 LED Dot Matrix Display MAX7219 Dot Matrix Display Module for Raspberry Pi
HT16K33 Driver I2C 8X8 Matrix LED Dot Matrix Display Module Red Green White Blue
For Raspberry Pi Various MAX7219 Led Dot Matrix Module 8x8 LED Display