Lixie是一个开放，现代的辉光管替代品！

开发板

Lixie是一个开放，现代的辉光管替代品！

Lixie是一个数字显示模块，利用现代手段模拟老式辉光管的显示效果，每个模块显示一位数字，配合Arduino开发板、Node MCU开发板或者树莓派等使用。

通常可以组合4个（或更多）用于时钟显示时间、温度等任何数字数值

它是如何工作的？

Lixie通过光线穿过透明烯酸的边缘照射在雕刻的部分，这使丙烯酸的平坦表面保持透明,只雕刻部分亮起来！现在把
标识着数字0-9的10块堆叠在一起，这样就可以清晰的分别显示每个数字！

它能做什么？

Lixie基于WS2812B LED是您可以想到的任何数字信息显示屏！时钟，温度、湿度，计数器等

如何使用？

不同于辉光管需要高压电，Lixie只需要5V即可点亮，设置和使用也是极其简单的。只需将5V和GND引脚连接到Arduino，并将“DIN”引脚连接到任何数字引脚。在编程时包含Lixie library即可

例如：

#include "Lixie.h" // Include Lixie Library

#define DATA_PIN 5
#define NUM_LIXIES 4
Lixie lix(DATA_PIN, NUM_LIXIES); // Set class name to "lix" and define your Lixie setup

uint16_t count = 0; // Use this number to count up

void setup() {
  lix.begin();                // Initialize LEDs
}

void loop() {
  lix.write(count);          // Write the count to the displays
  count++;                   // Increment count
  delay(1000);
}

Lixie被设计为WS2812B条，这意味着您可以把更多的连接在一起，只要您的电源可以处理！每个电路板上有20个LED，但是通常情况下，在给定的时间只有两个LED同时亮起。
Lixie library还将所有的工作推送到一个整数的每个数字到显示，所以如果你有4个Lixies，调用lix.write（314）将显示“314”或“0314”！

什么使得LiXie不同？

低电压
虽然传统的Nixie Tube显示器采用了一个危险的170V电源，Lixie只运行5伏，使儿童，宠物和新兴的爱好者安全！连接器。
方便
Lixie基于WS2812B LED，这意味着它们不需要任何专门的驱动程序 - 只需一个微控制器！连接器。
可拓展
您可以简单地连接一个数字到下一个数字，并用Lixie Arduino库驱动它们！

软件 - Arduino C ++库

[attachment=10662316][attachment=10662317][attachment=10662318]

由四个Lixie和NodeMCU组成的NTP时钟代码

[url=]复制代码[/url]

#include "Lixie.h" // Include Lixie Library
#define DATA_PIN 4
#define NUM_LIXIES 4
Lixie lix(DATA_PIN, NUM_LIXIES);
#include
#include
#include
#include // WifiMulti Lib for connection handling
ESP8266WiFiMulti WiFiMulti;
//---------------------------------------
const char* WIFI_SSID = "xxxxxxxxx"; // your network SSID (name)
const char* WIFI_PASS = "123456789"; // your network password
const bool SIX_DIGIT = false; // True if 6-digit clock with seconds true or false
const int TIME_OFFSET = +8; // Beijing Time GMT+8
const byte TIME_COLOR_RGB[3] = {0,255,255}; // CYAN
//---------------------------------------
// NTP Servers:
static const char ntpServerName[] = "s1a.time.edu.cn";
//static const char ntpServerName[] = "s1b.time.edu.cn";
//static const char ntpServerName[] = "time-a.timefreq.bldrdoc.gov";
//static const char ntpServerName[] = "time-b.timefreq.bldrdoc.gov";
//static const char ntpServerName[] = "time-c.timefreq.bldrdoc.gov";
WiFiUDP Udp;
unsigned int localPort = 8888; // local port to listen for UDP packets
time_t getNtpTime();
void digitalClockDisplay();
void sendNTPpacket(IPAddress &address);
void setup()
{
lix.begin(); // Initialize LEDs
Serial.begin(115200);
WiFiMulti.addAP(WIFI_SSID, WIFI_PASS); // Your WIFI credentials
// This sets all lights to yellow while we're connecting to WIFI
while ((WiFiMulti.run() != WL_CONNECTED)) {
lix.color(255, 255, 0);
lix.write(8888);
delay(100);
}
// Green on connection success
lix.color(0, 255, 0);
lix.write(9999);
delay(500);
// Reset colors to default
lix.color(255, 255, 255);
lix.clear();
Serial.print("IP number assigned by DHCP is ");
Serial.println(WiFi.localIP());
Serial.println("Starting UDP");
Udp.begin(localPort);
Serial.print("Local port: ");
Serial.println(Udp.localPort());
Serial.println("waiting for sync");
setSyncProvider(getNtpTime);
setSyncInterval(300);
}
time_t prevDisplay = 0; // when the digital clock was displayed
void loop()
{
if (timeStatus() != timeNotSet) {
if (now() != prevDisplay) { //update the display only if time has changed
prevDisplay = now();
digitalClockDisplay();
}
}
}
void digitalClockDisplay()
{
// digital clock display of the time
String time_now;
String h;
String m;
String s;
if(hour() < 10){
h = "0"+String(hour());
}
else{
h = String(hour());
}
if(minute() < 10){
m = "0"+String(minute());
}
else{
m = String(minute());
}
if(second() < 10){
s = "0"+String(second());
}
else{
s = String(second());
}
time_now += h;
time_now += ":";
time_now += m;
if(SIX_DIGIT == true){
time_now += ":";
time_now += s;
}
char buf[10];
time_now.toCharArray(buf,10);
lix.color(TIME_COLOR_RGB[0],TIME_COLOR_RGB[1],TIME_COLOR_RGB[2]);
lix.write(buf);
Serial.println(time_now);
}
/*-------- NTP code ----------*/
const int NTP_PACKET_SIZE = 48; // NTP time is in the first 48 bytes of message
byte packetBuffer[NTP_PACKET_SIZE]; //buffer to hold incoming & outgoing packets
time_t getNtpTime()
{
IPAddress ntpServerIP; // NTP server's ip address
while (Udp.parsePacket() > 0) ; // discard any previously received packets
Serial.println("Transmit NTP Request");
// get a random server from the pool
WiFi.hostByName(ntpServerName, ntpServerIP);
Serial.print(ntpServerName);
Serial.print(": ");
Serial.println(ntpServerIP);
sendNTPpacket(ntpServerIP);
uint32_t beginWait = millis();
while (millis() - beginWait < 1500) {
int size = Udp.parsePacket();
if (size >= NTP_PACKET_SIZE) {
Serial.println("Receive NTP Response");
Udp.read(packetBuffer, NTP_PACKET_SIZE); // read packet into the buffer
unsigned long secsSince1900;
// convert four bytes starting at location 40 to a long integer
secsSince1900 = (unsigned long)packetBuffer[40] << 24;
secsSince1900 |= (unsigned long)packetBuffer[41] << 16;
secsSince1900 |= (unsigned long)packetBuffer[42] << 8;
secsSince1900 |= (unsigned long)packetBuffer[43];
return secsSince1900 - 2208988800UL + TIME_OFFSET * SECS_PER_HOUR;
}
}
Serial.println("No NTP Response :-(");
return 0; // return 0 if unable to get the time
}
// send an NTP request to the time server at the given address
void sendNTPpacket(IPAddress &address)
{
// set all bytes in the buffer to 0
memset(packetBuffer, 0, NTP_PACKET_SIZE);
// Initialize values needed to form NTP request
// (see URL above for details on the packets)
packetBuffer[0] = 0b11100011; // LI, Version, Mode
packetBuffer[1] = 0; // Stratum, or type of clock
packetBuffer[2] = 6; // Polling Interval
packetBuffer[3] = 0xEC; // Peer Clock Precision
// 8 bytes of zero for Root Delay & Root Dispersion
packetBuffer[12] = 49;
packetBuffer[13] = 0x4E;
packetBuffer[14] = 49;
packetBuffer[15] = 52;
// all NTP fields have been given values, now
// you can send a packet requesting a timestamp:
Udp.beginPacket(address, 123); //NTP requests are to port 123
Udp.write(packetBuffer, NTP_PACKET_SIZE);
Udp.endPacket();
}

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Lixie是一个开放，现代的辉光管替代品！

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