4位数码管模块
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产品简介
4位数码管模块是采用0.56英寸4位数码管设计制作，有小数点、时钟两种模式可选择，采用PH2.0-4P接口/XH2.54-4P排针接口，配合专用传感器线使用方便接线；且有M3安装柱可选配，方便固定。
将4位数码管模块加入项目中，可用来显示数值、时钟等信息。
规格参数
- 数码管：0.56 英寸，4 位
- 驱动IC：TM1650
- 工作电压 3V~5V
- 工作温度：-40℃~80℃
- 亮度等级：8 级亮度可设置
- 模块尺寸：50.5mm * 19.5mm
- 安装孔：3mm
- 安装孔中心距：42mm * 12mm
- 模块重量：3.8g
引脚说明
- 1. GND 黑线 -- Gnd(地)
- 2. VCC 红线 -- Vcc(电源+5V)
- 3. CLK 蓝线 -- 信号
- 3. DIO 白线 -- 信号
应用示例
电路连接示意图
| 4位数码管显示模块 | Arduino UNO |
| VCC | +5V |
| GND | GND |
| CLK | D10 |
| DIO | D11 |
提示：以下程序需使用到 tm1650库文件，文件下载地址见页末 - 参考资料。下载后将其解压至arduinoIDE安装目录/libraries文件夹中，例如： "D:\Program Files\Arduino\arduino-1.6.4-windows\arduino-1.6.4\libraries"。
示例代码
示例一：4位数码管显示测试
/*------------------------------------------------------------------------------------
TM1650 nixie tube
This example code shows how to use the functions of the TM1650 Library.
-------------------------------------------------------------------------------------*/
/*************************************************************************************/
#include<tm1650.h>
#define ON DISPLAY_ON
#define OFF DISPLAY_OFF
#define SegmentMode _8_SEGMENT_MODE
unsigned char LightLevel = LV2;
unsigned char WorkMode = NORMAL_MODE;
//define each segment
const unsigned char Seg_test[8] = {0x20, 0x01, 0x02, 0x04, 0x08, 0x10, 0x40, 0x80};
//number 0-9 code
const unsigned char Number_arr[10] = {0x3f, 0x06, 0x5b, 0x4f, 0x66, 0x6d, 0x7d, 0x07, 0x7f, 0x6f};
unsigned char i, j = 0, k = 0, l = 0, m = 0;
unsigned char temp[4] = {0x3f, 0x06, 0x5b, 0x4f};
boolean err = 0;
int pin_SCK = 10;
int pin_DIO = 11;
TM1650 tm1650(pin_SCK, pin_DIO);
void setup()
{
}
void loop()
{
//config tm1650
err = tm1650.DisplayConfig_TM1650(LightLevel, SegmentMode, WorkMode, ON);
//all nixie tube turn on
for (i = 0; i < 4; i++)
{
err = tm1650.DisplayOneDigi_TM1650(i + 1, 0xFF);
}
delay(500);
//loop each segment
for (m = 0; m < 8; m++)
{
for (i = 0; i < 4; i++)
{
err = tm1650.DisplayOneDigi_TM1650(i + 1, Seg_test[m]);
}
delay(500);
}
//display form 0 to 9
for (m = 0; m <= 9; m++)
{
for (i = 0; i < 4; i++)
{
err = tm1650.DisplayOneDigi_TM1650(i + 1, Number_arr[m]);
}
delay(500);
}
//display the content of array temp[]
for (i = 0; i < 4; i++)
{
err = tm1650.DisplayOneDigi_TM1650(i + 1, temp[i]);
}
delay(500);
//all turn off
err = tm1650.DisplayOFF_TM1650(LightLevel, SegmentMode, WorkMode);
delay(1000);
//turn on again
err = tm1650.DisplayON_TM1650(LightLevel, SegmentMode, WorkMode);
delay(1000);
}
程序下载地址：TM1650_nixie_tube
程序运行结果：根据显示效果看程序，更方便理解
示例二：电位器控制彩色LED模块变色
电路连接示意图
/*
Potentiometer control RGB LED change color
*/
#include <Adafruit_NeoPixel.h>
#define RGBLEDPin 5
#define NUMPIXELS 4
#define pPin A0
// Parameter 1 = number of pixels in strip
// Parameter 2 = pin number (most are valid)
// Parameter 3 = pixel type flags, add together as needed:
// NEO_KHZ800 800 KHz bitstream (most NeoPixel products w/WS2812 LEDs)
// NEO_KHZ400 400 KHz (classic 'v1' (not v2) FLORA pixels, WS2811 drivers)
// NEO_GRB Pixels are wired for GRB bitstream (most NeoPixel products)
// NEO_RGB Pixels are wired for RGB bitstream (v1 FLORA pixels, not v2)
Adafruit_NeoPixel pixels = Adafruit_NeoPixel(NUMPIXELS, RGBLEDPin, NEO_GRB + NEO_KHZ800);
int pVal = 0;
int RVal = 0;
int GVal = 0;
int BVal = 0;
void setup()
{
pinMode(RGBLEDPin, OUTPUT);
pixels.begin(); // This initializes the NeoPixel library.
pixels.show();
}
void loop()
{
pVal = analogRead(pPin); //读取A0模拟口的数值（0-5V 对应 0-1203取值）
if (pVal >= 0 && pVal <= 170) {
RVal = 255;
GVal = 0;
BVal = map(pVal, 0, 170, 0, 255);
} else if (pVal > 170 && pVal <= 340) {
RVal = map(pVal, 170, 340, 255, 0);
GVal = 0;
BVal = 255;
} else if (pVal > 340 && pVal <= 510) {
RVal = 0;
GVal = map(pVal, 340, 510, 0, 255);
BVal = 255;
} else if (pVal > 510 && pVal <= 680) {
RVal = 0;
GVal = 255;
BVal = map(pVal, 510, 680, 255, 0);
} else if (pVal > 680 && pVal <= 850) {
RVal = map(pVal, 680, 850, 0, 255);
GVal = 255;
BVal = 0;
} else {
RVal = 255;
GVal = map(pVal, 850, 1023, 255, 0);
BVal = 0;
}
lightLED(RVal, GVal, BVal);
}
void lightLED(int r, int g , int b) {
// For a set of NeoPixels the first NeoPixel is 0, second is 1, all the way up to the count of pixels minus one.
for (int i = 0; i < NUMPIXELS; i++) {
// pixels.Color takes RGB values, from 0,0,0 up to 255,255,255
pixels.setPixelColor(i, r, g, b); // Moderately bright green color.
pixels.show(); // This sends the updated pixel color to the hardware.
}
}
程序下载地址：ChangeColor
程序运行结果：转动电位器，彩色led变色。
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