The APA102 is 5V signaling. Please use appropriate logic level converter if working with 3.3V microcontrollers, like ESP8266 or ESP32. APA102 is controlled via the SPI bus.
| Lightsaber Pin | Microcontroller Pin |
|---|---|
| GND | GND |
| VCC | 5V |
| CI | SCK |
| DI | MOSI |
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