Description Neco Unit is an RGB lighting panel unit with a cat-ear board shape and 35 WS2812C-2020 RGB LEDs. Neco Unit uses two 4-pin Grove ports for connection to an M5 host device and for expanding more lighting units in a serial cascading layout. Neco Unit also includes a tactile button, allowing host interaction for switching lighting effects. With 256 brightness levels and 16,777,216 colors, Neco Unit is suited to home decoration, party ambiance, stage performance and wearable lighting projects. Notes It is best not to keep Neco Unit fully lit for long periods to avoid damaging the LEDs. A brightness setting around 20 is recommended. Features Neco Unit LED panel: cat-ear shaped lighting panel with 35 WS2812C-2020 RGB LEDs. Expandable Grove connection: Neco Unit provides two HY2.0-4P Grove ports for host connection and unit expansion. Tactile switch input: the built-in button lets Neco Unit interact with the host for effect switching. Rich lighting output: 256 brightness levels and 16,777,216 colors support colorful lighting effects. Serial cascading interface: Neco Unit can be arranged with more units for larger light-panel designs. Development platform support: Neco Unit can be developed with UIFlow and Arduino. Specifications LED Model WS2812C-2020 Current per LED 5mA Brightness Levels 256 levels Connection Type Serial cascading interface Operating Temperature 0-85°C Number of Colors 16,777,216 colors Product Size 44.6 x 43.0 x 10.1mm Product Weight 9.6g Package Size 99.0 x 66.0 x 27.0mm Gross Weight 52.8g Applications Home decoration lighting with Neco Unit. Party ambiance and colorful background lighting. Stage performance props and visual effects. Wearable cat-ear lighting projects using Neco Unit and the included coated iron wires. Interactive M5Stack projects that use Neco Unit as an RGB LED panel with button input. Product List 2 x Unit Neco 1 x HY2.0-4P Grove Cable (20cm) 1 x HY2.0-4P Grove Cable (1m) 2 x Plastic coated iron wires Other Content PinMap PORT.B Black GND PORT.B Red 5V PORT.B Yellow DATA PORT.B White BTN Lighting and Expansion Neco Unit uses a serial cascading interface, so additional panels can be expanded from the Grove connection. The 35 WS2812C-2020 RGB LEDs support individually addressable color effects controlled from an M5 host. Development Support The documentation provides Arduino sample code using Adafruit_NeoPixel and UIFlow examples for testing Neco Unit. The sample brightness value is set around 20, matching the usage note for protecting the LEDs during longer operation. Resources Unit Neco product document Unit Neco schematic PDF Unit Neco model size drawing Unit Neco 3D STEP model WS2812C-2020 LED datasheet Unit Neco UIFlow test example Unit Neco UiFlow2 documentation FAQ How many LEDs are on Neco Unit? Neco Unit has 35 WS2812C-2020 RGB LEDs. Can Neco Unit be expanded with more lighting units? Yes. Neco Unit uses two Grove ports and a serial cascading interface for expansion. What does the button on Neco Unit do? The tactile button allows Neco Unit to interact with the host device, such as switching lighting effects. Which platforms support Neco Unit development? Neco Unit supports UIFlow and Arduino development. What is included in the package? The package includes 2 x Unit Neco, 1 x HY2.0-4P Grove Cable (20cm), 1 x HY2.0-4P Grove Cable (1m), and 2 x Plastic coated iron wires.