Day: May 21, 2017

Arcade Game

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I haven’t finished my pinball yet and then looking at other things… While browsing, I came across this nice cabinet and decided to get one. It looks nice and well done.

At the same time I purchased a Pandora’s box 680 in 1. (Jamma Box)

Result in few days…

I bought the cabinet from this shop in China. Only delivery in China.


Artnet, WS2812 and ESP8266 (Arduino IDE)

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From my previous post I have updated the program to be compiled from Arduino IDE.

#include <ESP8266WiFi.h>
#include <WiFiUdp.h>
#include <Adafruit_NeoPixel.h>

#define WSout 5                                     // Pin D1
#define ARTNET_PORT 6454

#define PIXELCOUNT 100

byte hData[318];

const int number_of_channels=300; //512 for 512 channels

const char* ssid     = "";
const char* password = "";

Adafruit_NeoPixel pixels = Adafruit_NeoPixel(PIXELCOUNT,WSout,NEO_GRB+NEO_KHZ800);

WiFiUDP udp;

IPAddress local_ip(192, 168, 1, 190);
IPAddress gateway_ip(192, 168, 1, 1);
IPAddress subnet_ip(255, 255, 255, 0);

void setup() {
  Serial.print("Connecting to ");

  WiFi.begin(ssid, password);
  WiFi.config(local_ip, gateway_ip, subnet_ip);

  while (WiFi.status() != WL_CONNECTED) {

  udp.begin(ARTNET_PORT); // Open ArtNet port

  Serial.println("WiFi connected");
  Serial.println("IP address: ");


  for(byte i=0;i<PIXELCOUNT;i++){
    pixels.setPixelColor(i, Color(0,0,0));

void loop() {
  if (udp.parsePacket()) {, 318);
   // pixels.setPixelColor(0, Color(hData[19], hData[20],hData[21]));
  for ( int n=0; n<100; n++){   
     pixels.setPixelColor(n, Color(hData[(n * 3) + 19], hData[(n *3)+20],hData[(n *3)+21]));

uint32_t Color(byte r, byte g, byte b){
  uint32_t c;
  c = r;
  c <<=8;
  c |= g;
  c <<= 8;
  c |= b;
  return c;

The WS2812 data line is connected to D1 from the NODEMCU board.


Config of the Arduino IDE


It looks like it work better than the code in Lua.

This comes from a similar program I did few years ago to run 10 matrices of 10 x 10 pixels. I was using WS2801 led stripes, arduino UNO and ethernet shield.

Everything still runs smooth untill now.

Some photos of matrix installed and the controller running JINX.

Artnet, WS2812 and ESP8266 (Lua)

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From my previous post on Artnet ESP8266, I had some feedback about some trouble. I decided to make it again but with the WS2812.

2017-05-21 11_49_58-NodeMCU custom builds

Once compiled you will receive an email with a link to download the firmware.

Upload the firmware with Nodemcu flasher and change the path to point to the custom firmware

2017-05-21 16_01_25-Open2017-05-21 16_01_56-nodemcu

With Esplorer, upload this program:

2017-05-21 16_10_41-ESPlorer v0.2.0-rc5 by 4refr0nt

tmr.delay(5000000)   -- wait 1,000,000 us = 1 second
gpio.mode(4, gpio.OUTPUT)
s:on("receive",function(s,c) ws2812.write(string.sub (c, 19, 318)) end)

I am driving a Matrix (10*10) of 100 pixels.

In the UDP loop, I am extracting the 300 bytes (19 to 318) corresponding to each RGB values of each pixels; 3 * 100. Bytes 1 to 18 are the Artnet header.

The led stripe is connected to PIN D4 of my NODEMCU Board


Forgot to mention that a fast wifi router is needed.