EZNeo – Creality V4.2.2/V4.2.7/V4.3.1 Board Setup

What you will need

  1. The EZNeo Strip
  2. A 5V Power Adapter*
  3. Jumper Wires
  4. Soldering Iron & Solder

*The V4.X.X Boards have a 5V output on the BL_T header but we do not recommend using that to power the EZNeo as we do not want to overload the 5V rail on these boards. It is recommended to supply a separate 5V adapter. Also, due to how these boards are designed the USB back feeds power to the 5V rail and can contribute to overdrawing from the USB power if the printer PSU is powered off.

Powering the EZNeo with a 5V Power Adapter

If your control board does not have the capacity and/or headers (1.0A @ 5V) to power the strip directly, you can power them with a simple step-down module. We carry 1.5A step downs that have wires pre-soldered and pre-set to 5V for quick and easy installation. The only soldering required for our 5V adapter is the connection between the 5V output and the jumper wires to plug into the EZNeo 3 Pin plug for power. Jumper wires are included with our 5V adapter linked below. They will require you to solder to the step down to attach the power input and output wires.  

IO Pin Wiring

The V4.X.X boards have up to 5 IO pins that are available to use. 2 are located on the BL_T header and 2 are on the programming header above the LCD. You can use any of these to control the EZNeo strips. Below is a picture showing the pin locations and their corresponding pin numbers.

Whatever pin you connect to will be the one you specify in the firmware. Nothing else can be using these pins, so choose one that is not used. If you are using a BL Touch on all 5 BL_T header pins you should have the Z endstop port open and the pin on the right side of the connector is the Z signal pin (PA7).

NOTE: J1 S Pin is Pin PA4 will not work due to a pullup resistor on it. Use one of the other pins below.

Firmware Setup

Unified 2 Firmware

If you are using our Unified 2 firmware, there are preset settings in the Configuration.h file to support the EZNeo strip. All you need to do is uncomment the line for the EZNeo strip you are using, uncomment the NEOPIXEL_PIN line, and enter in the pin number you are using.

Vanilla Marlin Setup

If you are using a standard build of Marlin (aka "Vanilla" Marlin), follow the directions below to set the correct options to use the strips with your Marlin build. These directions are based on Marlin Older/newer versions of Marlin may have different values than shown below.

Configuration.h Settings

In Configuration.h make the following changes:
  • Uncomment the NEOPIXEL_LED line
  • Set the NEOPIXEL_PIN line to whatever IO pin you are using to control the strip.
  • Change the NEOPIXEL_PIXELS value to 15
  • Uncomment the NEOPIXEL_STARTUP_TEST line

Configuration_adv.h Settings

In Configuration_adv.h make the following changes:
  • Uncomment the LED_CONTROL_MENU line
These settings will enable all the Marlin RGB LED control options. You can change the LED colors from your printer LCD menu or through Gcode commands (M150)
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