https://community.nxp.com/t5/LPC-Microcontrollers/WS2812-interface-With-LPC5514JBD64E/m-p/2403976#M59734 <P>Hi NXP Community,</P><P>I am working with an LPC5514JBD64E-based controller and I need to interface a WS2812/WS2812B LED ring with the MCU.</P><P>I am studying the LPC5514JBD64E datasheet and my controller schematic, but I am new to the LPC55xx family and need some guidance.</P><P>I would like to know:</P><P>1. Which GPIO pin of the LPC5514JBD64E should be used for the WS2812 data (DIN) signal?</P><P>2. Since the LPC5514JBD64E uses 3.3 V logic and the WS2812 will be powered from 5 V, what is the recommended hardware connection between the MCU and WS2812?</P><P>3. Is a 74AHCT125 recommended between the MCU GPIO and WS2812 DIN?</P><P>4. Which peripheral or method should be used to generate the precise timing required by the WS2812 protocol?</P><P>5. Is there an official NXP SDK example, driver, or sample code for controlling WS2812 or NeoPixel LEDs using the LPC5514JBD64E?</P><P>6. If there is no WS2812-specific example, could you provide or point me to a basic working example code that makes a WS2812 LED or LED ring blink or change color?</P><P>7. What is the recommended development environment and programming/debugging procedure for this MCU?</P><P>My immediate goal is to make the WS2812 LED ring blink and display different colors using the LPC5514JBD64E.</P><P>I would appreciate guidance on the correct GPIO, hardware connection, peripheral, and example code.</P><P>Thank you!</P> Wed, 12 Aug 2026 06:31:06 GMT Kishore02 2026-08-12T06:31:06Z https://community.nxp.com/t5/LPC-Microcontrollers/WS2812-interface-With-LPC5514JBD64E/m-p/2403976#M59734 <P>Hi NXP Community,</P><P>I am working with an LPC5514JBD64E-based controller and I need to interface a WS2812/WS2812B LED ring with the MCU.</P><P>I am studying the LPC5514JBD64E datasheet and my controller schematic, but I am new to the LPC55xx family and need some guidance.</P><P>I would like to know:</P><P>1. Which GPIO pin of the LPC5514JBD64E should be used for the WS2812 data (DIN) signal?</P><P>2. Since the LPC5514JBD64E uses 3.3 V logic and the WS2812 will be powered from 5 V, what is the recommended hardware connection between the MCU and WS2812?</P><P>3. Is a 74AHCT125 recommended between the MCU GPIO and WS2812 DIN?</P><P>4. Which peripheral or method should be used to generate the precise timing required by the WS2812 protocol?</P><P>5. Is there an official NXP SDK example, driver, or sample code for controlling WS2812 or NeoPixel LEDs using the LPC5514JBD64E?</P><P>6. If there is no WS2812-specific example, could you provide or point me to a basic working example code that makes a WS2812 LED or LED ring blink or change color?</P><P>7. What is the recommended development environment and programming/debugging procedure for this MCU?</P><P>My immediate goal is to make the WS2812 LED ring blink and display different colors using the LPC5514JBD64E.</P><P>I would appreciate guidance on the correct GPIO, hardware connection, peripheral, and example code.</P><P>Thank you!</P> Wed, 12 Aug 2026 06:31:06 GMT https://community.nxp.com/t5/LPC-Microcontrollers/WS2812-interface-With-LPC5514JBD64E/m-p/2403976#M59734 Kishore02 2026-08-12T06:31:06Z