مخطط الأطراف
مخطط أطراف وحدة مصفوفة LED 8×8 من نوع MAX7219
الأطراف
- VCC (5V)
- GND
- DIN (SPI data in)
- CS (chip select / LOAD)
- CLK
- Output header on the far edge (VCC GND DOUT CS CLK): DOUT daisy-chains the next module's DIN, the other four just pass through
المواصفات
| Driver IC | MAX7219 |
|---|---|
| الشاشة | 8 × 8 LEDs (64), single colour |
| جهد التغذية | 5 V (IC rated 4.0–5.5 V) |
| Logic input high | 3.5 V min (3.3 V MCU is marginal) |
| الواجهة | SPI-style, up to 10 MHz |
| Brightness | 16 levels, peak current set by RSET |
| Chaining | DOUT → next module's DIN |
| التيار | Up to several hundred mA per module at full brightness |
