Difference between revisions of "MAX7219X4"
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* [https://github.com/land-boards/lb-Arduino-Code/tree/master/LBCards/MAX7219X4 MAX7219X4 Arduino GitHub repository] | * [https://github.com/land-boards/lb-Arduino-Code/tree/master/LBCards/MAX7219X4 MAX7219X4 Arduino GitHub repository] | ||
** Uses [https://www.arduino.cc/reference/en/libraries/ledcontrol/ Arduino LedControl library] | ** Uses [https://www.arduino.cc/reference/en/libraries/ledcontrol/ Arduino LedControl library] | ||
| − | ** | + | *** Library only writes to (1) 8-digit display |
| − | ** Arduino UNO pin 12 is connected to the DataIn | + | ** Pins |
| − | ** Arduino UNO pin 11 is connected to the CLK | + | *** Arduino UNO pin 12 is connected to the DataIn |
| − | ** Arduino UNO pin 10 is connected to CS | + | *** Arduino UNO pin 11 is connected to the CLK |
| + | *** Arduino UNO pin 10 is connected to CS | ||
| + | * [https://github.com/bartoszbielawski/LEDMatrixDriver LEDMatrixDriver] | ||
| + | ** Recommended pins for Arduino Uno: | ||
| + | *** DIN is connected to 11 | ||
| + | *** CLK is connected to 13 | ||
| + | *** CS is connected to 9 | ||
== Test == | == Test == | ||
Revision as of 14:20, 26 July 2022
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
- Library only writes to (1) 8-digit display
- Pins
- 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
- Uses Arduino LedControl library
- LEDMatrixDriver
- Recommended pins for Arduino Uno:
- DIN is connected to 11
- CLK is connected to 13
- CS is connected to 9
- Recommended pins for Arduino Uno:
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
