8×8 LED Matrix Display – Model: 1088AS (Common Cathode)
The 1088AS is a compact 3 mm red-dot 8×8 LED matrix in a black bezel, perfect for displaying text, icons, animations, or simple graphics in DIY electronics.
📊 Technical Specifications
| Parameter | Value |
|---|
| LED Size | 3 mm red LEDs (common ) |
| Configuration | 16-pin: 8 cathodes (columns), 8 anodes (rows) |
| Forward Voltage | 2.1 – 2.5 V @ 20 mA per LED |
| Forward Current | Max 20 mA per LED |
| Wavelength | 625–630 nm |
| Dimensions | 32 × 32 × 8 mm board |
| Operating Temperature | –25 °C to +60 °C (board), –40 °C to +85 °C (LEDs) |
| Pinout Type | Common Cathode – 1088AS (rows = anode, columns = cathode) |
🔌 Pinout & Wiring with Arduino (Multiplexing)
Connect cathodes (columns) to digital pins, and anodes (rows) to others. Example using Arduino UNO:
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const byte rowPins[8] = {2,3,4,5,6,7,8,9};
const byte colPins[8] = {10,11,12,13,A0,A1,A2,A3};
An excellent in-depth hacking tutorial:
https://www.youtube.com/watch?v=X9tsfOeYnAU
(Arduino multiplexing control without external driver)
Or try direct control tutorial:
https://www.youtube.com/watch?v=fBDRZV-YlMQ
⚙️ Easy Setup with MAX7219 Driver
For simpler wiring (DIN, CLK, CS) and scalable control:
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#include <LedControl.h>
LedControl lc = LedControl(11,13,10,1);
Comprehensive tutorial (scrolling text + Android control):
https://howtomechatronics.com/tutorials/arduino/8x8-led-matrix-max7219-tutorial-scrolling-text-android-control-via-bluetooth/ howtomechatronics.com
📄 Datasheet & Resources
