MAX7219X4
Features
- (4) 7 Segment displays
- 32 digits
- Can display decimal, hex values
- Each display has 8 of 7 segment LED displays
- "Blue" card
- 3.3V operation
- 3.3V to 5V Level shifter
- Requires 3.3V and 5V power supplies
Programming
- MAX7219X4 Arduino GitHub repository
- Uses Arduino LedControl library
- Only writes to 1 8 digit display
- Arduino UNO pin 12 is connected to the DataIn
- Arduino UNO pin 11 is connected to the CLK
- Arduino UNO pin 10 is connected to CS
Test
Test Modules
| SenShld | Desc | MAX J1 | Color |
|---|---|---|---|
| VCC | VCC | 1 | RED |
| GND | GND | 2 | BLK |
| D12 | DATAIN | 3 | WHT |
| D10 | CS | 4 | BRN |
| D11 | CLK | 5 | YEL |
Mechanicals
