Maple Mini GPS时钟：彩色GLCD和气压图形

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木木&点点发布时间：2018-12-13 17:07

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带有BMP180气压传感器的GPS彩色时钟在90-MIP ARM STM32F103上运行，全部在ArduinoGUI 1.6.1下编程。

在这个项目中使用的东西

硬件组件

BMP180分接模块3.3V

Maple Mini Clone STM32F103

许多中国销售商经销这种产品 - 链接不是认可

Vishay TCRT5000反射式光学传感器

ILI9341 240x320 SPI GLCD

SPI 3.3V - 未使用SD卡功能

外壳-正面透明的塑料

在折扣/积压商店本地购买

可充电电池组，电缆

这些经常被发现有极低的折扣，我的是USB线

故事

2015/06/10：更新了图片，以显示我个人对此项目的构建。

一年多以前，我在Hackster.io上发布了GPS时间-日期时钟项目：

Hackster链接

从那时起，我不时在我自己的时钟上进行了一些小的改进; 例如，从8位AVR Atmega328P转换到基于在72-MHz ARM运行的32位设计。新设计增加的马力使我能够添加重要的新硬件和软件，这样我就可以在一个单元中同时使用基于BMP180的GPS时钟和精确温度和气压传感器，运行在一个$ 4.80美元的中国克隆STM32 Maple Mini上。

这是一个高级项目

这意味着你真的需要知道你在Arduino Land做什么来复制项目。换句话说，我不牵你的手。我将列出部件，连接和其他一般构建的问题，但没有Fritzing图表显示点对点布线。

但是，如果你有一些中等复杂度的3.3V设计的Arduino项目，那么这个项目不应该被证明是一个障碍。例如，一切都是3.3V设计：GPS，STM32F103 MapleMini Clone，BMP180 I2C传感器和2.2英寸320x240 TFTILI9341 SPI显示器。

这是一个实验设计

Arduino下的STM32F103支持是基于LeafLabs几年前完成的原始工作的实验设计。您仍然可以购买他们原来的Maple Mini 或者在4美元到12美元之间，您可以在eBay或AliExpress 上购买Maple Mini Clone 。我有两个来源的克隆，每个工作都可以接受这个项目。最初的Maple Mini是一款出色的4层板，具有出色的模拟性能，但该项目不使用任何模拟信号，因此克隆的性能可以接受。如果您通过折扣/拍卖交易所购买，请注意您自己的商品，质量，甚至收货; 我不建议您购买。

构成新的气压显示器

这种按需（通过手动或按钮）设计是为了提供信息，并在显示的5秒内提供大量信息（当然，您可以通过编辑代码延长5秒。）压力的SI单位在hPa的测量中显示，并且英制压力以英寸汞柱表示，或者以英寸为单位 - 图片中的屏幕标签不正确。

X轴由320个像素组成，Y轴由240个像素组成。图中显示为左右（当前为12小时前）.X刻度将显示3,6,9和12小时的标记。右侧图例显示了高低的刻度，范围从985hPa到1040hPa。选择该范围足以覆盖美国佐治亚州。单品红线（在1012和1026之间）是一个浮动指示器，它总是在12小时范围内寻找最低读数。如果他们也希望读取峰值，也可以轻松添加编程，但是眼睛在视觉上获得峰值读数比最小值更容易; 因此显示器中的单行。如果他们愿意，选择构建此项目的用户可以轻松地使用代码 - - 开源之美。

反射光学传感器TCRT5000

主屏幕没有变化

红色水平线显示12小时窗口的最低读数

“新”按需气压屏(mmHg应为inHg)

我正在使用你们许多人可能不熟悉的部分：Vishay TCRT5000“反射光学传感器”。本质上，这是一个IR二极管，其中NPN晶体管由IR反射信号门控。在这个项目中，将手放在传感器上大约0.5英寸将导致IR光被反射到器件的光学晶体管部分，并且基极被偏置为导通。

一旦基座导通，发射器电连接到收集器，这将用作数字开关 - 通知STM32人类用户希望查看气压屏幕。如果你不希望这种复杂程度，你可以使用4.7K电阻到3.3V Vcc的瞬时按钮。

典型使用连接：

A == IR LED阳极== 100欧姆电阻到3.3V Vcc

C == LED阴极== GND（公共地）

C ==集电极晶体管== 3.3V Vcc

E ==晶体管的发射极=="but"连接在 Mini Maple板上

其他连接

BMP180：

SDA == STM32引脚15 *

SCL == STM32引脚16 *

*通常你必须提供一个上拉电阻; 参考板材制造商的文档，因为这些板有一些突破。

SPI ILI9341 TFT彩色显示模块

引脚# GLCD通用连接

1 Vcc 3.3V Vcc 3.3V

2 Gnd Gnd（普通）

3 CS Maple Mini＃13

4重置 Maple Mini＃14

5 DC / A0 Maple Mini＃12

6 MOSI / SDA Maple Mini＃4

7 SCLK / SCK Maple MIni＃6

8个LED / BL /背光 Vcc / 3.3V **

**我的分线单元有一个10欧姆的板载限流电阻。如果没有提供限流电阻，其他单元可能需要限流电阻。

各种各样的

GPS 9600 BAUD串行输出转到Maple Mini板引脚＃0，标记为rx3。该项目使用SoftwareSerial（STM32的黑客版本），rx3将专用于GPS功能。

Maple Mini上的针脚＃18对于非DST（标准时间）保持打开状态，对于DST是关闭的。对这个引脚状态的改变往往伴随着复位生效。

引脚“bus”或第二个按钮引脚已经提到:它正常使用时被拉至3.3V，以表示对气压屏幕的请求。在屏幕转换发生之前，信号必须变为高电平然后变为低电平。

一般来说，大多数引脚和信号都记录在源代码中。如果您正在寻找特定的东西，代码应有提供答案 - 请搜索。

代码 - 我的部分是Public Domain，但是对于某些库的其他更严格的用法包含在license.h 选项卡中。例如，Adafruit_ILI9341是在MIT许可下发布的。SoftwareSerial库属于GNU Lesser GPL。

代码

更新时间： 2015年5月1日

微小的变化，使GPS时钟无需连接BMP180即可工作。
BMP180绘图程序的微小变化，使Y轴与图例正确对齐。
允许代码在2015年4月15日之后使用STM32核心文件进行编译的小更改。

20150501_GPS_Time_Baro.zip----

20150501_GPS_Time_Baro.zip (50.69 KB, 下载次数: 4)

2018-12-13 17:06 上传

点击文件名下载附件

请注意，所有源代码必须放在一个目录中 - 这是因为许多这些标准的Arduino库已被修改（被黑客攻击！）以与STM32 Maple Mini板和微控制器一起使用。当前目录名称为 GPS_Time_Baro

无标题文件

/*Please reviewLicense.h tab for use/rights information regarding included libraries

GPS_Time_Baro based on original sketch by M.Ray Burnette 3/02/2014

Arduino 1.6.1 - Maple Mini Port STM32F103 byRay Burnette 3/09/2015 PUBLIC DOMAIN by Author

Sketch uses 46,360 bytes (42%) of programstorage space. Maximum is 108,000 bytes.

Global variables use 5,752 bytes of dynamicmemory.

#include <SPI.h> //\Documents\Arduino\hardware\STM32\STM32F1\libraries\SPI

#include<Wire.h> // I2C\Documents\Arduino\hardware\STM32\STM32F1\libraries\Wire (legacy)

#include<Streaming.h> //\Documents\Arduino\libraries\Streaming (legacy)

#include".\BMP085.h" // #include"I2Cdev.h" is pulled in also

#include".\Adafruit_GPS.h"

#include".\Adafruit_GFX.h"

#include".\Adafruit_ILI9341.h"

#include".\SoftwareSerial.h" // faux version onlyfor STM32 Maple

#include".\Utilities.h"

/* History array fills from left and element[80] is dropped every nn minutes (average calc period)

0 1 2 3 4 5 6 7 8

012345678901234567890123456789012345678901234567890123456789012345678901234567890 */

long pHistory[] ={

0L, 0L, 0L, 0L, 0L, 0L, 0L, 0L, 0L, 0L,0L, 0L, 0L, 0L, 0L, 0L, 0L, 0L, 0L, 0L,

0L, 0L, 0L, 0L, 0L, 0L, 0L, 0L, 0L, 0L,0L, 0L, 0L, 0L, 0L, 0L, 0L, 0L, 0L, 0L, 0L };

int hPa10,Fah10; // used for Nokia LCD integer to character - faux decimal place

int localCorrect= 3400; // +/- hPa*100 to correct forlocal altitude: 100X delta: 3400==Briscoe Field, Ga

floattemperature;

floatpressure; // How many hPa in 1 mm Hg? The answer is 1.3332239

float inHg;

floatmmhg_conversion= 3386.388140071641; // convert hPa to inches Hg

float altitude;

int32_tlastMicros;

byte error,address = 77; // I2C address specific toBMP180

unsigned longTimeMarker;

unsigned longPlotTime; //trigger point to store Barometric reading

const unsignedlong GraphResponsemS = 540000 ; //9 minutes per array element, 9*80 = 720minutes = 12 hours total

uint8_tlast_seconds = 0;

uint8_tTimeZoneHour = 5; // Affected as -1 for DST

uint8_tLocalHour = 0;

uint8_tLocalMinute = 0;

uint8_tLocalSecond = 0;

uint8_tLocalMonth = 0;

uint8_tLocalDay = 0;

uint8_tLocalYear = 0;

uint8_t increment= 0;

boolean flip =true;

float Celsius = 0.0;

boolean PM =true;

boolean DST =true; // Daylight Savings Time: Pin A3DST = LOW Std time = HIGH

boolean FirstTime= true; //Before satellite time is available via $GPRMC or $GPGAA

booleanFahrenheit = true; // set by digital pin D12

booleanForcedUpdate = false; // used to force a time+date screen full redraw

// ILI9341 TFTGLCD display connections for hardware SPI

// Signal Maple Mini Leonardo LCD Display UNO pins

//#define _sclk 6 // 15 J2 pin 7 13

//#define_miso 5 NC // 14 pin 9 12

//#define_mosi 4 // 16 pin 6 11

#defineTFT_CS 13 // 10 pin 3 10

#defineTFT_DC 12 // 9 pin 5 9

#defineTFT_RST 14 // 8 pin 4 8

// create lcdobject

Adafruit_ILI9341lcd = Adafruit_ILI9341(TFT_CS, TFT_DC, TFT_RST); // Using hardware SPI

// For Maple MiniSTM32F103 the hacked SoftwareSerial.h & SoftwareSerial.cpp must be in thissketch

// createmySerial object for exclusive use by Adafruit_GPS

SoftwareSerialmySerial(0, 1); // Rx Tx : Connect the GPSTX (transmit) pin 0 and leave pin 1 unconnected

Adafruit_GPSGPS(&mySerial); // createGPS object

BMP085barometer; // create barometer object

void setup() {

lcd.begin();

mySerial.begin(9600);

Wire.begin(); barometer.initialize(); // I2C Stuff

lcd.setRotation(3); //landscape with SPI conn J2 to left side.

lcd.fillScreen(ILI9341_BLACK);

lcd.setCursor(0, 0);

lcd.setTextColor(ILI9341_WHITE,ILI9341_BLACK);

// lcd.setTextSize(1); //Tiny 53 char / line

// lcd.setTextSize(2); // Small 26 char / line

lcd.setTextSize(3); //Medium 17 char / line 10Pixels Wide x 25Pixels / line

//lcd.setTextSize(4); //Large 13 char / line

Wire.beginTransmission(address); // I2C Stuff

error = Wire.endTransmission();

lcd.setCursor(0, 0);

if(barometer.testConnection())

{

lcd.setTextColor(ILI9341_GREEN,ILI9341_BLACK);

lcd.print("I2C: OK V150309");

} else {

lcd.print("BMP180: Failure!");

for(;; ) {;} // Error with infinite loop

}

pinMode( 18, INPUT); //DST hi = NO low = YES

digitalWrite( 18, HIGH); // turnon pullup resistor

if( digitalRead(18) ) { // PB4low for Daylight Savings Time

DST = false; // Default

} else {

DST = true;

TimeZoneHour = TimeZoneHour - 1;

}

pinMode(BOARD_BUTTON_PIN, INPUT); // board button(for manual History select)

lcd.drawFastHLine(0, 23, 319,ILI9341_RED); //Hello Screen

lcd.setTextColor(ILI9341_CYAN,ILI9341_BLACK);

lcd.setCursor(0, 25);

lcd.print("by: Ray Burnette");

lcd.setCursor(0, 50);

lcd.println("(c) GPS timedate");

lcd.drawFastHLine(0, 85, 319, ILI9341_GREEN);

lcd.setTextColor(ILI9341_GREEN,ILI9341_BLACK);

lcd.setCursor(0, 90);

lcd.print( "Waiting on GPS...");

lcd.print("");

lcd.setTextColor(ILI9341_WHITE,ILI9341_BLACK);

lcd.print( "Up to 30+ minutes");

lcd.println("on first-time use");

lcd.drawFastHLine(0, 175, 319, ILI9341_BLUE);

lcd.setTextSize(2); // 26 char / line

lcd.setCursor (20, 180);

lcd.setTextColor(ILI9341_YELLOW,ILI9341_BLACK);

lcd.print("GPS input visiblebelow:");

lcd.drawRect(0, 0, 319, 200, ILI9341_WHITE);

lcd.setTextColor(ILI9341_WHITE,ILI9341_BLACK);

lcd.setTextSize(3);

lcd.setCursor(0, 220);

lcd.setTextWrap(false);

}

void loop() {

char c = GPS.read(); //read data from the GPS and check for full sentence

if (GPS.newNMEAreceived()) {

if (!GPS.parse(GPS.lastNMEA())); // sets thenewNMEAreceived() flag: return; no longer used

}

if ((last_seconds != GPS.seconds) ||ForcedUpdate) // Except forseconds, other screen data only once per minute

{

if (FirstTime) { firsttime(); } // Do this once tonotify the user

// update with new satellite data

last_seconds = GPS.seconds;

LocalHour = GPS.hour;

LocalMinute = GPS.minute;

LocalSecond = GPS.seconds;

LocalMonth = GPS.month;

LocalDay = GPS.day;

LocalYear = GPS.year;

// This section always updates every secondEXCEPT immediately upon return from barometer display

if (! ForcedUpdate) // EXCEPTdo not show seconds immediately after Barometric viewing

{

lcd.setTextSize(4);

lcd.setTextColor( ILI9341_YELLOW,ILI9341_BLACK );

// lcd.setTextColor( random(0xff, 0xffff) ); // cool, but disturbing

lcd.setCursor( 138, 30);

if(LocalSecond < 10)

{

lcd.print("0"); //position 12

lcd.print(LocalSecond); //position 13

} else {

lcd.print(LocalSecond); // positions12, 13

}

if(LocalHour >= TimeZoneHour)

{

LocalHour = LocalHour - TimeZoneHour;

} else {

LocalHour = (LocalHour + 24) - TimeZoneHour; // Correct for period whenLondon is a day ahead

LocalDay = LocalDay - 1;

if( LocalDay == 0) //backward a month

{

LocalMonth = LocalMonth - 1;

LocalDay = DaysInMonth[ LocalMonth - 1 ]; // index 0 based

}

// The above may need correcting...(brute force)

// January in London still DecemberWestward

if( LocalMonth == 0) // GPSmonths are 01 through 12

{

LocalMonth = 12;

LocalDay = DaysInMonth[ 11 ]; // lastday ofDecember

}

else if( (LocalMonth == 2) &&(LocalYear % 4 == 0) && (LocalDay == 28) )

{

LocalDay = LocalDay + 1; // Deal withLocalMonth = 2 and leapyear (simple... not exhaustive)

}

if(LocalHour >= 12) //Military or Civilian time selection

{

PM = true;

//if(LocalHour > 12) LocalHour =LocalHour - 12; // non-Miltime

} else {

PM = false;

}

barometer.setControl(BMP085_MODE_TEMPERATURE); // request temperature

lastMicros = micros();

while (micros() - lastMicros <barometer.getMeasureDelayMicroseconds()); // wait for conversion (4.5ms delay)

if (Fahrenheit) { //read calibrated temperature value in degrees Fahrenheit

temperature = barometer.getTemperatureF();

} else {

temperature =barometer.getTemperatureC();

}

lastMicros = micros();

barometer.setControl(BMP085_MODE_PRESSURE_3); // request pressure (3xoversampling mode, high detail, 23.5ms delay)

while (micros() - lastMicros <barometer.getMeasureDelayMicroseconds());

pressure = barometer.getPressure(); // read calibratedpressure value in Pascals (Pa)

pressure += localCorrect;

inHg = float ( pressure * 10.0 / mmhg_conversion);

// Display to GLCD

if(LocalSecond == 0 || ForcedUpdate) // full screen updateevery minute or on-demand

{

if (ForcedUpdate) { ForcedUpdate = false; }

lcd.fillScreen(ILI9341_BLACK); // Screen clear GLCD

lcd.setTextSize(4);

lcd.setTextColor( ILI9341_CYAN );

lcd.setCursor( 0, 0);

temperature += 0.5; //round up

lcd.print( temperature, 0 ); // positions 0, 1, 2? nodecimal

if (Fahrenheit) {

lcd.print(" F"); //positions 2

} else {

lcd.print(" C"); //positions 2

}

// Middle pane

lcd.setTextColor( ILI9341_GREEN );

lcd.setTextSize(10);

lcd.setCursor( 10, 80);

if(LocalHour < 10) lcd.print (""); //position 6

lcd.print(LocalHour); // positions 6, 7

lcd.print(":"); //position 8

if(LocalMinute < 10)

{

lcd.print("0"); //position 9

lcd.print(LocalMinute); //position 10

} else {

lcd.print(LocalMinute); // positions9, 10

}

// Day-Of-Week, Month and Date info

lcd.setTextColor(ILI9341_YELLOW);

lcd.setTextSize(4);

// Day Of Week is shown in Top pane,right

lcd.setCursor(235, 0); // uppersection, right

lcd.print(DayOfWeek[dow(LocalYear,LocalMonth, LocalDay)]); // DayOfWeek

// Month Name and Date and Year are shownin lower pane

lcd.setCursor(35, 195);

lcd.print(NameOfMonth[LocalMonth -1]); // positions 6 -8

lcd.print(" "); //position 9

if(LocalDay < 10) {

lcd.print(" "); //position 10

lcd.print(LocalDay);

} else {

lcd.print(LocalDay); //positions 10, 11

}

lcd.print(" 20"); //positions 13, 14

lcd.print(LocalYear); //positions 15, 16

}

} // above code only excutes once-per-minute unless forced update

// littl' micro-terminal below to display GPSserial output until GPS data is valid (mostly $GPGLL sentences)

if (FirstTime && (c != 0)) {

if ( c == 36 ) {

lcd.setCursor(0, 220);

lcd.print( " " );

lcd.setCursor(0, 220);

}

lcd.print (c);

}

if ((TimeMarker + GraphResponsemS) <millis() )

{ // machine clock has advanced beyond trigger, so store current pressure

TimeMarker = millis(); // resettrigger for future (next) event

StoreHistory(); //update pHistory matrix

}

if (isButtonPressed()) displayHistory(); // Intent is to only display oncommand

} // loop

void firsttime(void ) { //First good time/date since power on?

FirstTime = false; // GPSis initialized

ForcedUpdate = true; //Force a refresh of the main time/date display screen

}

void StoreHistory( void ) { // Creates a boxed border using lines 0 & 1

long M; //pressure/100 --> hPa

int n; // avoid compiler complaints in for(;;) loop

inHg = float ( M / mmhg_conversion) ;

M = pressure / 100L; // scale tohPa

// graph values are typically between a lowof 985 and a high of 1040

// clipping high/low forces the dynamic rangeto be limited to a maximum change of 45 hPa

if (M > 1040L) M = 1040L; // clip (flatten)ceiling

if (M < 985L) M = 985L; // clip(flatten) floor

// array [0] is reserved for newest value;Therefore [80] = [79], [79] = [78],..., [1]==[0] after shift

for (n = 80; n > 0; n--) //shift history array to the right, oldest value [80] is lost

{

pHistory[n] = pHistory[(n - 1)]; // shift dataright, oldest value lost, [1] becomes [0] the current value

}

pHistory[0] = M; // save current "adjusted" pressure hPa [0]

}

voiddisplayHistory( void ) {

long M;

long minimum = 1040L;

uint8_t h, z;

uint16_t x, y;

int temp1, temp2; //working vars for type conversion

M = pressure / 100L; //scale to hPa

pHistory[0] = M; // update pHistory[0] as StoreHistory() may never have been called

lcd.fillScreen(ILI9341_BLACK);

lcd.setCursor(0, 1); lcd.print("hPa inHg");

lcd.setCursor(0, 35); lcd.print(pHistory[0]);

lcd.print(" ");

temp1 = inHg / 10; // Integer component

lcd.print(temp1);lcd.print("."); // decimal place

temp2 = ((inHg / 10) - (float) temp1 ) *100; // 2 decimalplaces

lcd.print(temp2); // print it as an integer

lcd.drawFastVLine(0, 88, 112, ILI9341_RED); // setup Y axis

lcd.drawFastHLine(0, 200, 238,ILI9341_RED); // setupX axis

lcd.drawFastHLine(0, 201, 238,ILI9341_RED); // setup X axis double-width X axis foremphasis

lcd.setTextSize(1);

lcd.setCursor(240, 70); lcd.print("_ 1040=30.71"); // setup Y legends

lcd.setCursor(240, 101); lcd.print("_1026= 30.30");

lcd.setCursor(240, 132); lcd.print("_1012= 29.88");

lcd.setCursor(240, 163); lcd.print("__998= 29.47");

lcd.setCursor(240, 194); lcd.print("__985= 29.09");

// tiny fonts for timeline legend @53char/line (6px/char)

lcd.setCursor(0, 205); lcd.print("N ^ ^ ^ ^ Historical ");

lcd.setCursor(0, 213); lcd.print("O 0 0 0 1 Timeline ");

lcd.setCursor(0, 221); lcd.print("W 3 6 9 2 In Hours ");

z = 0; // z will span 0 to 319, fullscreen landscape width in pixels

for ( x = 1; x < 240; x++ ) { // 80elements @1 element per 9 minutes = 20 elements per 3 hours

if ( x % 3 == 0 ) { // this provides for skippingevery 3th position for bar spacing

z++;

} else if (pHistory[z] != 0) { // array isinitially init to zero value, no need to plot this

if (pHistory[z] < minimum) minimum =pHistory[z]; // capture thelowest 12 hour pressure reading

h = (pHistory[z] - 985) * 2; // h is forheight and x2 is for scaling factor

y = 200 - h; // Adafruit's GFX y coordinates plotsupside down, flip reference

lcd.drawFastVLine(x, y, h,ILI9341_CYAN); // 2bars are drawn per array element and 1 blank space for separation

}

y = 200 - ((minimum - 985) * 2);

lcd.drawFastHLine(1, y, 238,ILI9341_MAGENTA); //draw 12 hour lowest reading

ForcedUpdate = true; // Force main screen full update upon return from this function

delay(5000);

}

廉价塑料导致的变形…….需要有机玻璃而不是丙烯酸树脂

从前面-放大到查看笔记

正视图

俯视图-左侧为GPS，右侧为DST开关

俯视图-最左边是安装在机箱外部的BMP180

注意：显示屏下方灰色的东西是USB可充电5V电池组。单元不断运行，因此没有电源开关。单独购买AC到USB墙壁单元可以保持充电状态。

代码如下：

/*Please review License.h tab foruse/rights information regarding included libraries

GPS_Time_Baro based on original sketch by M. Ray Burnette 3/02/2014

Arduino 1.6.1 - Maple Mini Port STM32F103 by Ray Burnette 3/09/2015PUBLIC DOMAIN by Author

Sketch uses 46,360 bytes (42%) of program storage space. Maximum is108,000 bytes.

Global variables use 5,752 bytes of dynamic memory.

#include <SPI.h> //\Documents\Arduino\hardware\STM32\STM32F1\libraries\SPI

#include <Wire.h> // I2C \Documents\Arduino\hardware\STM32\STM32F1\libraries\Wire(legacy)

#include <Streaming.h> // \Documents\Arduino\libraries\Streaming (legacy)

#include ".\BMP085.h" // #include "I2Cdev.h" is pulled in also

#include ".\Adafruit_GPS.h"

#include ".\Adafruit_GFX.h"

#include ".\Adafruit_ILI9341.h"

#include".\SoftwareSerial.h" // faux version only for STM32 Maple

#include ".\Utilities.h"

/* History array fills from left and element [80] is dropped every nnminutes (average calc period)

0 1 2 3 4 5 6 7 8

012345678901234567890123456789012345678901234567890123456789012345678901234567890 */

long pHistory[] = {

0L, 0L, 0L, 0L, 0L, 0L, 0L, 0L, 0L, 0L, 0L, 0L, 0L, 0L, 0L, 0L, 0L, 0L, 0L, 0L,

0L, 0L, 0L, 0L, 0L, 0L, 0L, 0L, 0L, 0L, 0L, 0L, 0L, 0L, 0L, 0L, 0L, 0L, 0L, 0L, 0L };

int hPa10, Fah10; // used for Nokia LCD integer to character - faux decimalplace

int localCorrect = 3400; // +/- hPa*100 tocorrect for local altitude: 100X delta: 3400== Briscoe Field, Ga

float temperature;

float pressure; // How many hPa in 1 mm Hg? The answer is 1.3332239

float inHg;

float mmhg_conversion= 3386.388140071641; // convert hPa to inches Hg

float altitude;

int32_t lastMicros;

byte error, address = 77; // I2C address specific to BMP180

unsigned long TimeMarker;

unsigned long PlotTime; // trigger point to store Barometric reading

const unsigned long GraphResponsemS = 540000 ; // 9 minutes per array element, 9*80 = 720 minutes = 12 hours total

uint8_t last_seconds = 0;

uint8_t TimeZoneHour = 5; // Affected as -1 for DST

uint8_t LocalHour = 0;

uint8_t LocalMinute = 0;

uint8_t LocalSecond = 0;

uint8_t LocalMonth = 0;

uint8_t LocalDay = 0;

uint8_t LocalYear = 0;

uint8_t increment = 0;

boolean flip = true;

float Celsius = 0.0;

boolean PM = true;

boolean DST = true; // Daylight Savings Time: Pin A3 DST = LOW Std time =HIGH

boolean FirstTime = true; // Before satellite time is available via $GPRMC or$GPGAA

boolean Fahrenheit = true; // set by digital pin D12

boolean ForcedUpdate = false; // used to force a time+date screen full redraw

// ILI9341 TFT GLCD display connections forhardware SPI

// Signal Maple Mini Leonardo LCD Display UNO pins

//#define _sclk 6 // 15 J2 pin 7 13

//#define _miso 5 NC // 14 pin 9 12

//#define _mosi 4 // 16 pin 6 11

#define TFT_CS 13 // 10 pin 3 10

#define TFT_DC 12 // 9 pin 5 9

#define TFT_RST 14 // 8 pin 4 8

// create lcd object

Adafruit_ILI9341 lcd =Adafruit_ILI9341(TFT_CS, TFT_DC, TFT_RST); // Using hardware SPI

// For Maple Mini STM32F103 the hackedSoftwareSerial.h & SoftwareSerial.cpp must be in this sketch

// create mySerial object for exclusive useby Adafruit_GPS

SoftwareSerial mySerial(0, 1); // Rx Tx : Connect the GPS TX (transmit) pin 0 and leavepin 1 unconnected

Adafruit_GPS GPS(&mySerial); // create GPS object

BMP085 barometer; // create barometer object

void setup() {

lcd.begin();

mySerial.begin(9600);

Wire.begin(); barometer.initialize(); // I2C Stuff

lcd.setRotation(3); // landscape with SPI conn J2 to left side.

lcd.fillScreen(ILI9341_BLACK);

lcd.setCursor(0, 0);

lcd.setTextColor(ILI9341_WHITE, ILI9341_BLACK);

// lcd.setTextSize(1); //Tiny 53 char / line

// lcd.setTextSize(2); //Small 26 char / line

lcd.setTextSize(3); // Medium 17 char / line 10Pixels Wide x 25 Pixels / line

//lcd.setTextSize(4); //Large 13 char / line

Wire.beginTransmission(address); // I2C Stuff

error = Wire.endTransmission();

lcd.setCursor(0, 0);

if(barometer.testConnection())

{

lcd.setTextColor(ILI9341_GREEN, ILI9341_BLACK);

lcd.print("I2C: OK V150309");

} else {

lcd.print("BMP180: Failure!");

for(;; ) {;} // Error with infinite loop

}

pinMode( 18, INPUT); // DST hi = NO low = YES

digitalWrite( 18, HIGH); // turn on pullup resistor

if( digitalRead(18) ) { // PB4 low for Daylight Savings Time

DST = false; // Default

} else {

DST = true;

TimeZoneHour = TimeZoneHour - 1;

}

pinMode(BOARD_BUTTON_PIN, INPUT); // board button (for manual History select)

lcd.drawFastHLine(0, 23, 319, ILI9341_RED); // Hello Screen

lcd.setTextColor(ILI9341_CYAN, ILI9341_BLACK);

lcd.setCursor(0, 25);

lcd.print("by: Ray Burnette");

lcd.setCursor(0, 50);

lcd.println("(c) GPS timedate");

lcd.drawFastHLine(0, 85, 319, ILI9341_GREEN);

lcd.setTextColor(ILI9341_GREEN, ILI9341_BLACK);

lcd.setCursor(0, 90);

lcd.print( "Waiting on GPS...");

lcd.print("");

lcd.setTextColor(ILI9341_WHITE, ILI9341_BLACK);

lcd.print( "Up to 30+ minutes");

lcd.println("on first-time use");

lcd.drawFastHLine(0, 175, 319, ILI9341_BLUE);

lcd.setTextSize(2); // 26 char / line

lcd.setCursor (20, 180);

lcd.setTextColor(ILI9341_YELLOW, ILI9341_BLACK);

lcd.print("GPS input visiblebelow:");

lcd.drawRect(0, 0, 319, 200, ILI9341_WHITE);

lcd.setTextColor(ILI9341_WHITE, ILI9341_BLACK);

lcd.setTextSize(3);

lcd.setCursor(0, 220);

lcd.setTextWrap(false);

}

void loop() {

char c = GPS.read(); // read data from the GPS and check for full sentence

if(GPS.newNMEAreceived()) {

if(!GPS.parse(GPS.lastNMEA())); // sets the newNMEAreceived() flag: return; no longerused

}

if ((last_seconds !=GPS.seconds) || ForcedUpdate) // Except for seconds, other screen dataonly once per minute

{

if (FirstTime) { firsttime(); } // Do this once to notify the user

// update with new satellite data

last_seconds = GPS.seconds;

LocalHour = GPS.hour;

LocalMinute = GPS.minute;

LocalSecond = GPS.seconds;

LocalMonth = GPS.month;

LocalDay = GPS.day;

LocalYear = GPS.year;

// This section always updates every second EXCEPTimmediately upon return from barometer display

if (! ForcedUpdate) // EXCEPT do not show seconds immediately afterBarometric viewing

{

lcd.setTextSize(4);

lcd.setTextColor( ILI9341_YELLOW, ILI9341_BLACK );

// lcd.setTextColor( random(0xff, 0xffff )); // cool, but disturbing

lcd.setCursor( 138, 30);

if(LocalSecond< 10)

{

lcd.print("0"); // position 12

lcd.print(LocalSecond); // position 13

} else {

lcd.print(LocalSecond); // positions 12, 13

}

if(LocalHour >=TimeZoneHour)

{

LocalHour = LocalHour - TimeZoneHour;

}else {

LocalHour = (LocalHour + 24) - TimeZoneHour; // Correct for period when London is a day ahead

LocalDay = LocalDay - 1;

if( LocalDay == 0) // backward a month

{

LocalMonth = LocalMonth - 1;

LocalDay = DaysInMonth[LocalMonth - 1 ]; // index 0 based

}

// The above may need correcting... (bruteforce)

// January in London still DecemberWestward

if( LocalMonth ==0) // GPS months are 01 through 12

{

LocalMonth = 12;

LocalDay = DaysInMonth[ 11 ]; // lastday of December

}

else if( (LocalMonth== 2) &&(LocalYear % 4 == 0) && (LocalDay== 28) )

{

LocalDay = LocalDay + 1; // Deal with LocalMonth = 2 and leapyear (simple... notexhaustive)

}

if(LocalHour >= 12) // Military or Civilian time selection

{

PM = true;

//if(LocalHour > 12) LocalHour =LocalHour - 12; // non-Miltime

}else {

PM = false;

}

barometer.setControl(BMP085_MODE_TEMPERATURE); // request temperature

lastMicros = micros();

while (micros() -lastMicros < barometer.getMeasureDelayMicroseconds()); // wait for conversion (4.5ms delay)

if (Fahrenheit) { // read calibrated temperature value in degreesFahrenheit

temperature = barometer.getTemperatureF();

}else {

temperature = barometer.getTemperatureC();

}

lastMicros = micros();

barometer.setControl(BMP085_MODE_PRESSURE_3); // request pressure (3x oversampling mode, high detail, 23.5ms delay)

while (micros() -lastMicros < barometer.getMeasureDelayMicroseconds());

pressure = barometer.getPressure(); // read calibrated pressure value in Pascals (Pa)

pressure += localCorrect;

inHg = float ( pressure * 10.0 / mmhg_conversion);

// Display to GLCD

if(LocalSecond == 0 || ForcedUpdate) // full screen update every minute or on-demand

{

if(ForcedUpdate) { ForcedUpdate = false; }

lcd.fillScreen(ILI9341_BLACK); // Screen clear GLCD

lcd.setTextSize(4);

lcd.setTextColor( ILI9341_CYAN );

lcd.setCursor( 0, 0);

temperature += 0.5; // round up

lcd.print( temperature, 0 ); // positions 0, 1, 2? no decimal

if (Fahrenheit) {

lcd.print(" F"); // positions 2

} else {

lcd.print(" C"); // positions 2

}

// Middle pane

lcd.setTextColor( ILI9341_GREEN );

lcd.setTextSize(10);

lcd.setCursor( 10, 80);

if(LocalHour <10) lcd.print (" "); // position 6

lcd.print(LocalHour); // positions 6, 7

lcd.print(":"); // position 8

if(LocalMinute< 10)

{

lcd.print("0"); // position 9

lcd.print(LocalMinute); // position 10

} else {

lcd.print(LocalMinute); // positions 9, 10

}

// Day-Of-Week, Month and Date info

lcd.setTextColor(ILI9341_YELLOW);

lcd.setTextSize(4);

// Day Of Week is shown in Top pane, right

lcd.setCursor(235, 0); // upper section, right

lcd.print(DayOfWeek[dow(LocalYear, LocalMonth, LocalDay)]); // DayOfWeek

// Month Name and Date and Year are shownin lower pane

lcd.setCursor(35, 195);

lcd.print(NameOfMonth[LocalMonth - 1]); // positions 6 - 8

lcd.print(" "); // position 9

if(LocalDay < 10) {

lcd.print(" "); // position 10

lcd.print(LocalDay);

} else {

lcd.print(LocalDay); // positions10, 11

}

lcd.print(" 20"); // positions 13, 14

lcd.print(LocalYear); // positions 15, 16

}

} // above code only excutes once-per-minute unless forcedupdate

// littl' micro-terminal below to display GPS serialoutput until GPS data is valid (mostly $GPGLL sentences)

if (FirstTime &&(c != 0)) {

if ( c == 36 ) {

lcd.setCursor(0, 220);

lcd.print( " " );

lcd.setCursor(0, 220);

}

lcd.print (c);

}

if ((TimeMarker +GraphResponsemS) < millis() )

{ // machine clock has advanced beyondtrigger, so store current pressure

TimeMarker = millis(); // reset trigger for future (next) event

StoreHistory(); // update pHistory matrix

}

if (isButtonPressed())displayHistory(); // Intent is to only display on command

} // loop

void firsttime( void ) { // First good time/date since power on?

FirstTime = false; // GPS is initialized

ForcedUpdate = true; // Force a refresh of the main time/date display screen

}

void StoreHistory ( void ) { // Creates aboxed border using lines 0 & 1

long M; // pressure/100 --> hPa

intn; // avoid compiler complaints in for(;;)loop

inHg= float ( M / mmhg_conversion) ;

M =pressure / 100L; // scale to hPa

// graph values are typically between a low of 985 and ahigh of 1040

// clipping high/low forces the dynamic range to belimited to a maximum change of 45 hPa

if (M > 1040L) M = 1040L; // clip (flatten) ceiling

if (M < 985L) M = 985L; // clip (flatten) floor

// array [0] is reserved for newest value; Therefore [80]= [79], [79] = [78],..., [1]==[0] after shift

for (n = 80; n > 0; n--) // shift history array to the right, oldest value [80] islost

{

pHistory[n] = pHistory[(n - 1)]; // shift dataright, oldest value lost, [1] becomes [0] the current value

}

pHistory[0] = M; // save current "adjusted"pressure hPa [0]

}

void displayHistory( void ) {

long M;

long minimum = 1040L;

uint8_t h, z;

uint16_t x, y;

int temp1, temp2; // working vars for type conversion

M =pressure / 100L; // scale to hPa

pHistory[0] = M; // update pHistory[0] as StoreHistory() may never havebeen called

lcd.fillScreen(ILI9341_BLACK);

lcd.setCursor(0, 1); lcd.print("hPa inHg");

lcd.setCursor(0, 35); lcd.print(pHistory[0]);

lcd.print(" ");

temp1 = inHg / 10; // Integer component

lcd.print(temp1); lcd.print("."); // decimal place

temp2 = ((inHg / 10) - (float) temp1 ) * 100; // 2 decimal places

lcd.print(temp2); // print it as an integer

lcd.drawFastVLine(0, 88, 112, ILI9341_RED); // setup Y axis

lcd.drawFastHLine(0, 200, 238, ILI9341_RED); // setup X axis

lcd.drawFastHLine(0, 201, 238, ILI9341_RED); // setup X axis double-width X axis for emphasis

lcd.setTextSize(1);

lcd.setCursor(240, 70); lcd.print("_ 1040= 30.71"); // setup Y legends

lcd.setCursor(240, 101); lcd.print("_ 1026=30.30");

lcd.setCursor(240, 132); lcd.print("_ 1012=29.88");

lcd.setCursor(240, 163); lcd.print("__ 998=29.47");

lcd.setCursor(240, 194); lcd.print("__ 985=29.09");

// tiny fonts for timeline legend @53 char/line(6px/char)

lcd.setCursor(0, 205); lcd.print("N ^ ^ ^ ^ Historical ");

lcd.setCursor(0, 213); lcd.print("O 0 0 0 1 Timeline ");

lcd.setCursor(0, 221); lcd.print("W 3 6 9 2 In Hours ");

z =0; // z will span 0 to 319, full screenlandscape width in pixels

for ( x = 1; x < 240; x++ ) { // 80 elements @1 element per 9 minutes = 20 elements per3 hours

if ( x % 3 == 0 ) { // this provides for skipping every 3th position for barspacing

z++;

}else if (pHistory[z]!= 0) { // array is initially init to zero value, no need to plotthis

if (pHistory[z]< minimum) minimum = pHistory[z]; // capture the lowest 12 hour pressurereading

h = (pHistory[z] - 985) * 2; // h is for height and x2 is for scaling factor

y = 200 - h; // Adafruit's GFX y coordinates plotsupside down, flip reference

lcd.drawFastVLine(x, y, h, ILI9341_CYAN); // 2 bars are drawn per array element and 1 blank space for separation

}

y =200 - ((minimum - 985) * 2);

lcd.drawFastHLine(1, y, 238, ILI9341_MAGENTA); // draw 12 hour lowest reading

ForcedUpdate = true; // Force main screen full update upon return from thisfunction

delay(5000);

}

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1个回答

wen66 回答时间：2020-12-7 17:07:42

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Maple Mini GPS时钟：彩色GLCD和气压图形

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