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M5_NightscoutMon.ino
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/* M5Stack Nightscout monitor
Copyright (C) 2018, 2019 Martin Lukasek <[email protected]>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>.
This software uses some 3rd party libraries:
IniFile by Steve Marple <[email protected]> (GNU LGPL v2.1)
ArduinoJson by Benoit BLANCHON (MIT License)
IoT Icon Set by Artur Funk (GPL v3)
*/
#include <M5Stack.h>
#include <WiFi.h>
#include <WiFiMulti.h>
#include <HTTPClient.h>
#include "time.h"
// #include <util/eu_dst.h>
#define ARDUINOJSON_USE_LONG_LONG 1
#include <ArduinoJson.h>
#include "Free_Fonts.h"
#include "IniFile.h"
#include "M5NSconfig.h"
tConfig cfg;
// extern const unsigned char gImage_logoM5[];
extern const unsigned char m5stack_startup_music[];
extern const unsigned char WiFi_symbol[];
extern const unsigned char alarmSndData[];
extern const unsigned char sun_icon16x16[];
extern const unsigned char clock_icon16x16[];
extern const unsigned char timer_icon16x16[];
extern const unsigned char powerbutton_icon16x16[];
extern const unsigned char bat0_icon16x16[];
extern const unsigned char bat1_icon16x16[];
extern const unsigned char bat2_icon16x16[];
extern const unsigned char bat3_icon16x16[];
extern const unsigned char bat4_icon16x16[];
extern const unsigned char plug_icon16x16[];
const char* ntpServer = "pool.ntp.org";
struct tm localTimeInfo;
int lastSec = 61;
int lastMin = 61;
char localTimeStr[30];
#ifndef min
#define min(a,b) (((a) < (b)) ? (a) : (b))
#endif
WiFiMulti WiFiMulti;
unsigned long msCount;
unsigned long msCountLog;
static uint8_t lcdBrightness = 10;
static char *iniFilename = "/M5NS.INI";
DynamicJsonDocument JSONdoc(16384);
float last10sgv[10];
int wasError = 0;
time_t lastAlarmTime = 0;
time_t lastSnoozeTime = 0;
void startupLogo() {
static uint8_t brightness, pre_brightness;
M5.Lcd.setBrightness(0);
if(cfg.bootPic[0]==0) {
// M5.Lcd.pushImage(0, 0, 320, 240, (uint16_t *)gImage_logoM5);
M5.Lcd.drawString("M5 Stack", 120, 60, GFXFF);
M5.Lcd.drawString("Nightscout monitor", 60, 80, GFXFF);
M5.Lcd.drawString("(c) 2019 Martin Lukasek", 20, 120, GFXFF);
} else {
M5.Lcd.drawJpgFile(SD, cfg.bootPic);
}
M5.Lcd.setBrightness(100);
M5.update();
M5.Speaker.playMusic(m5stack_startup_music,25000);
delay(1000);
M5.Lcd.fillScreen(BLACK);
delay(800);
for(int i=0; i>=100; i++) {
M5.Lcd.setBrightness(i);
delay(2);
}
}
void printLocalTime() {
if(!getLocalTime(&localTimeInfo)){
Serial.println("Failed to obtain time");
M5.Lcd.println("Failed to obtain time");
return;
}
Serial.println(&localTimeInfo, "%A, %B %d %Y %H:%M:%S");
M5.Lcd.println(&localTimeInfo, "%A, %B %d %Y %H:%M:%S");
}
static uint8_t music_data[25000]; // 5s in sample rate 5000 samp/s
void play_music_data(uint32_t data_length, uint8_t volume) {
uint8_t vol;
if( volume>100 )
vol=1;
else
vol=101-volume;
if(vol != 101) {
ledcAttachPin(SPEAKER_PIN, TONE_PIN_CHANNEL);
delay(10);
for(int i=0; i<data_length; i++) {
dacWrite(SPEAKER_PIN, music_data[i]/vol);
delayMicroseconds(200); // 1 000 000 microseconds / sample rate 5000
}
/* takes too long
// slowly set DAC to zero from the last value
for(int t=music_data[data_length-1]; t>=0; t--) {
dacWrite(SPEAKER_PIN, t);
delay(2);
} */
dacWrite(SPEAKER_PIN, 0);
delay(10);
ledcDetachPin(SPEAKER_PIN);
}
}
void play_tone(uint16_t frequency, uint32_t duration, uint8_t volume) {
// Serial.print("start fill music data "); Serial.println(millis());
uint32_t data_length = 5000;
if( duration*5 < data_length )
data_length = duration*5;
float interval = 2*M_PI*float(frequency)/float(5000);
for (int i=0;i<data_length;i++) {
music_data[i]=127+126*sin(interval*i);
}
// Serial.print("finish fill music data "); Serial.println(millis());
play_music_data(data_length, volume);
}
void sndAlarm() {
for(int j=0; j<6; j++) {
if( cfg.dev_mode )
play_tone(660, 400, 1);
else
play_tone(660, 400, 20);
delay(200);
}
M5.Speaker.mute();
// M5.Speaker.playMusic(m5stack_startup_music, 25000);
// M5.Speaker.update();
}
void sndWarning() {
for(int j=0; j<3; j++) {
if( cfg.dev_mode )
play_tone(3000, 100, 1);
else
play_tone(3000, 100, 100);
delay(300);
}
M5.Speaker.mute();
}
int tmpvol = 1;
void buttons_test() {
if(M5.BtnA.wasPressed()) {
// M5.Lcd.printf("A");
Serial.printf("A");
// play_tone(1000, 10, 1);
// sndAlarm();
if(lcdBrightness==cfg.brightness1)
lcdBrightness = cfg.brightness2;
else
if(lcdBrightness==cfg.brightness2)
lcdBrightness = cfg.brightness3;
else
lcdBrightness = cfg.brightness1;
M5.Lcd.setBrightness(lcdBrightness);
}
if(M5.BtnB.wasPressed()) {
// M5.Lcd.printf("B");
Serial.printf("B");
// play_tone(1000, 10, 1);
struct tm timeinfo;
if(!getLocalTime(&timeinfo)){
lastSnoozeTime=0;
} else {
lastSnoozeTime=mktime(&timeinfo);
}
M5.Lcd.setTextSize(1);
M5.Lcd.setFreeFont(FSSB12);
M5.Lcd.fillRect(110, 220, 100, 20, TFT_WHITE);
M5.Lcd.setTextColor(TFT_BLACK, TFT_WHITE);
char tmpStr[10];
sprintf(tmpStr, "%i", cfg.snooze_timeout);
int txw=M5.Lcd.textWidth(tmpStr);
Serial.print("Set SNOOZE: "); Serial.println(tmpStr);
M5.Lcd.drawString(tmpStr, 159-txw/2, 220, GFXFF);
}
if(M5.BtnC.wasPressed()) {
// M5.Lcd.printf("C");
Serial.printf("C");
// play_tone(1000, 10, 1);
M5.setWakeupButton(BUTTON_B_PIN);
M5.powerOFF();
/*
for (int i=0;i<25000;i++) {
music_data[i]=alarmSndData[i];
}
play_music_data(25000, 10); */
}
}
void wifi_connect() {
WiFi.mode(WIFI_STA);
WiFi.disconnect();
delay(100);
Serial.println("WiFi connect start");
M5.Lcd.println("WiFi connect start");
// We start by connecting to a WiFi network
if(cfg.wlan1ssid[0]!=0)
WiFiMulti.addAP(cfg.wlan1ssid, cfg.wlan1pass);
if(cfg.wlan2ssid[0]!=0)
WiFiMulti.addAP(cfg.wlan2ssid, cfg.wlan2pass);
if(cfg.wlan3ssid[0]!=0)
WiFiMulti.addAP(cfg.wlan3ssid, cfg.wlan3pass);
Serial.println();
M5.Lcd.println("");
Serial.print("Wait for WiFi... ");
M5.Lcd.print("Wait for WiFi... ");
while(WiFiMulti.run() != WL_CONNECTED) {
Serial.print(".");
M5.Lcd.print(".");
delay(500);
}
Serial.println("");
M5.Lcd.println("");
Serial.println("WiFi connected");
M5.Lcd.println("WiFi connected");
Serial.println("IP address: ");
M5.Lcd.println("IP address: ");
Serial.println(WiFi.localIP());
M5.Lcd.println(WiFi.localIP());
configTime(cfg.timeZone, cfg.dst, ntpServer);
delay(1000);
printLocalTime();
Serial.println("Connection done");
M5.Lcd.println("Connection done");
}
int8_t getBatteryLevel()
{
Wire.beginTransmission(0x75);
Wire.write(0x78);
if (Wire.endTransmission(false) == 0
&& Wire.requestFrom(0x75, 1)) {
int8_t bdata=Wire.read();
/*
// write battery info to logfile.txt
File fileLog = SD.open("/logfile.txt", FILE_WRITE);
if(!fileLog) {
Serial.println("Cannot write to logfile.txt");
} else {
int pos = fileLog.seek(fileLog.size());
struct tm timeinfo;
getLocalTime(&timeinfo);
fileLog.print(asctime(&timeinfo));
fileLog.print(" Battery level: "); fileLog.println(bdata, HEX);
fileLog.close();
Serial.print("Log file written: "); Serial.print(asctime(&timeinfo));
}
*/
switch (bdata & 0xF0) {
case 0xE0: return 25;
case 0xC0: return 50;
case 0x80: return 75;
case 0x00: return 100;
default: return 0;
}
}
return -1;
}
// the setup routine runs once when M5Stack starts up
void setup() {
// initialize the M5Stack object
M5.begin();
// prevent button A "ghost" random presses
Wire.begin();
SD.begin();
M5.Speaker.mute();
// Lcd display
M5.Lcd.setBrightness(100);
M5.Lcd.fillScreen(BLACK);
M5.Lcd.setTextColor(WHITE);
M5.Lcd.setCursor(0, 0);
M5.Lcd.setTextSize(2);
yield();
Serial.println(ESP.getFreeHeap());
readConfiguration(iniFilename, &cfg);
// strcpy(cfg.url, "user.herokuapp.com");
// cfg.show_mgdl = 1;
// cfg.show_COB_IOB = 0;
// cfg.snd_warning = 5.5;
// cfg.snd_alarm = 4.5;
// cfg.snd_warning_high = 9;
// cfg.snd_alarm_high = 10;
// cfg.alarm_repeat = 1;
// cfg.snooze_timeout = 2;
// cfg.brightness1 = 0;
// cfg.info_line = 1;
lcdBrightness = cfg.brightness1;
M5.Lcd.setBrightness(lcdBrightness);
startupLogo();
//M5.Speaker.mute();
yield();
M5.Lcd.setBrightness(lcdBrightness);
wifi_connect();
yield();
M5.Lcd.setBrightness(lcdBrightness);
M5.Lcd.fillScreen(BLACK);
// test file with time stamps
msCountLog = millis()-6000;
// update glycemia now
msCount = millis()-16000;
}
void drawArrow(int x, int y, int asize, int aangle, int pwidth, int plength, uint16_t color){
float dx = (asize-10)*cos(aangle-90)*PI/180+x; // calculate X position
float dy = (asize-10)*sin(aangle-90)*PI/180+y; // calculate Y position
float x1 = 0; float y1 = plength;
float x2 = pwidth/2; float y2 = pwidth/2;
float x3 = -pwidth/2; float y3 = pwidth/2;
float angle = aangle*PI/180-135;
float xx1 = x1*cos(angle)-y1*sin(angle)+dx;
float yy1 = y1*cos(angle)+x1*sin(angle)+dy;
float xx2 = x2*cos(angle)-y2*sin(angle)+dx;
float yy2 = y2*cos(angle)+x2*sin(angle)+dy;
float xx3 = x3*cos(angle)-y3*sin(angle)+dx;
float yy3 = y3*cos(angle)+x3*sin(angle)+dy;
M5.Lcd.fillTriangle(xx1,yy1,xx3,yy3,xx2,yy2, color);
M5.Lcd.drawLine(x, y, xx1, yy1, color);
M5.Lcd.drawLine(x+1, y, xx1+1, yy1, color);
M5.Lcd.drawLine(x, y+1, xx1, yy1+1, color);
M5.Lcd.drawLine(x-1, y, xx1-1, yy1, color);
M5.Lcd.drawLine(x, y-1, xx1, yy1-1, color);
M5.Lcd.drawLine(x+2, y, xx1+2, yy1, color);
M5.Lcd.drawLine(x, y+2, xx1, yy1+2, color);
M5.Lcd.drawLine(x-2, y, xx1-2, yy1, color);
M5.Lcd.drawLine(x, y-2, xx1, yy1-2, color);
}
void drawMiniGraph(){
/*
// draw help lines
for(int i=0; i<320; i+=40) {
M5.Lcd.drawLine(i, 0, i, 240, TFT_DARKGREY);
}
for(int i=0; i<240; i+=30) {
M5.Lcd.drawLine(0, i, 320, i, TFT_DARKGREY);
}
M5.Lcd.drawLine(0, 120, 320, 120, TFT_LIGHTGREY);
M5.Lcd.drawLine(160, 0, 160, 240, TFT_LIGHTGREY);
*/
int i;
float glk;
uint16_t sgvColor;
// M5.Lcd.drawLine(231, 110, 319, 110, TFT_DARKGREY);
// M5.Lcd.drawLine(231, 110, 231, 207, TFT_DARKGREY);
// M5.Lcd.drawLine(231, 207, 319, 207, TFT_DARKGREY);
// M5.Lcd.drawLine(319, 110, 319, 207, TFT_DARKGREY);
M5.Lcd.drawLine(231, 113, 319, 113, TFT_LIGHTGREY);
M5.Lcd.drawLine(231, 203, 319, 203, TFT_LIGHTGREY);
M5.Lcd.drawLine(231, 200-(4-3)*10+3, 319, 200-(4-3)*10+3, TFT_LIGHTGREY);
M5.Lcd.drawLine(231, 200-(9-3)*10+3, 319, 200-(9-3)*10+3, TFT_LIGHTGREY);
Serial.print("Last 10 values: ");
for(i=9; i>=0; i--) {
sgvColor = TFT_GREEN;
glk = *(last10sgv+9-i);
if(glk>12) {
glk = 12;
} else {
if(glk<3) {
glk = 3;
}
}
if(glk<cfg.red_low || glk>cfg.red_high) {
sgvColor = TFT_RED;
} else {
if(glk<cfg.yellow_low || glk>cfg.yellow_high) {
sgvColor = TFT_YELLOW;
}
}
Serial.print(*(last10sgv+i)); Serial.print(" ");
if(*(last10sgv+9-i)!=0)
M5.Lcd.fillCircle(234+i*9, 203-(glk-3.0)*10.0, 3, sgvColor);
}
Serial.println();
}
void drawIcon(int16_t x, int16_t y, const uint8_t *bitmap, uint16_t color) {
int16_t w = 16;
int16_t h = 16;
int32_t i, j, byteWidth = (w + 7) / 8;
for (j = 0; j < h; j++) {
for (i = 0; i < w; i++) {
if (pgm_read_byte(bitmap + j * byteWidth + i / 8) & (128 >> (i & 7))) {
M5.Lcd.drawPixel(x + i, y + j, color);
}
}
}
}
void update_glycemia() {
char loopInfoStr[64];
char basalInfoStr[64];
M5.Lcd.setTextDatum(TL_DATUM);
M5.Lcd.setTextColor(WHITE, BLACK);
M5.Lcd.setTextSize(1);
M5.Lcd.setCursor(0, 0);
// if there was an error, then clear whole screen, otherwise only graphic updated part
if( wasError ) {
M5.Lcd.fillScreen(BLACK);
} else {
M5.Lcd.fillRect(230, 110, 90, 100, TFT_BLACK);
}
// M5.Lcd.drawJpgFile(SD, "/WiFi_symbol.jpg", 242, 130);
M5.Lcd.drawBitmap(242, 130, 64, 48, (uint16_t *)WiFi_symbol);
// uint16_t maxWidth, uint16_t maxHeight, uint16_t offX, uint16_t offY, jpeg_div_t scale);
if((WiFiMulti.run() == WL_CONNECTED)) {
HTTPClient http;
Serial.print("[HTTP] begin...\n");
// configure target server and url
char NSurl[128];
strcpy(NSurl,"https://");
strcat(NSurl,cfg.url);
strcat(NSurl,"/api/v1/entries.json");
// more info at /api/v2/properties
http.begin(NSurl); //HTTP
Serial.print("[HTTP] GET...\n");
// start connection and send HTTP header
int httpCode = http.GET();
// httpCode will be negative on error
if(httpCode > 0) {
// HTTP header has been send and Server response header has been handled
Serial.printf("[HTTP] GET... code: %d\n", httpCode);
// file found at server
if(httpCode == HTTP_CODE_OK) {
String json = http.getString();
wasError = 0;
// Serial.println(json);
// const size_t capacity = JSON_ARRAY_SIZE(10) + 10*JSON_OBJECT_SIZE(19) + 3840;
// Serial.print("JSON size needed= "); Serial.print(capacity);
Serial.print("Free Heap = "); Serial.println(ESP.getFreeHeap());
auto JSONerr = deserializeJson(JSONdoc, json);
if (JSONerr) { //Check for errors in parsing
Serial.println("JSON parsing failed");
M5.Lcd.setFreeFont(FSSB12);
M5.Lcd.setTextColor(TFT_WHITE, TFT_BLACK);
M5.Lcd.drawString("JSON parsing failed", 0, 0, GFXFF);
wasError = 1;
} else {
char sensDev[64];
uint64_t rawtime = 0;
char sensDir[32];
float sensSgv = 0;
JsonObject obj;
int sgvindex = 0;
do {
obj=JSONdoc[sgvindex].as<JsonObject>();
sgvindex++;
} while ((!obj.containsKey("sgv")) && (sgvindex<9));
sgvindex--;
if(sgvindex<0 || sgvindex>8)
sgvindex=0;
strlcpy(sensDev, JSONdoc[sgvindex]["device"] | "N/A", 64);
rawtime = JSONdoc[sgvindex]["date"].as<long long>(); // sensTime is time in milliseconds since 1970, something like 1555229938118
strlcpy(sensDir, JSONdoc[sgvindex]["direction"] | "N/A", 32);
sensSgv = JSONdoc[sgvindex]["sgv"]; // get value of sensor measurement
time_t sensTime = rawtime / 1000; // no milliseconds, since 2000 would be - 946684800, but ok
for(int i=0; i<=9; i++) {
last10sgv[i]=JSONdoc[i]["sgv"];
last10sgv[i]/=18.0;
}
float sensSgvMgDl = sensSgv;
// internally we work in mmol/L
sensSgv/=18.0;
char tmpstr[255];
struct tm sensTm;
localtime_r(&sensTime, &sensTm);
Serial.print("sensDev = ");
Serial.println(sensDev);
Serial.print("sensTime = ");
Serial.print(sensTime);
sprintf(tmpstr, " (JSON %lld)", (long long) rawtime);
Serial.print(tmpstr);
sprintf(tmpstr, " = %s", ctime(&sensTime));
Serial.print(tmpstr);
Serial.print("sensSgv = ");
Serial.println(sensSgv);
Serial.print("sensDir = ");
Serial.println(sensDir);
// Serial.print(sensTm.tm_year+1900); Serial.print(" / "); Serial.print(sensTm.tm_mon+1); Serial.print(" / "); Serial.println(sensTm.tm_mday);
Serial.print("Sensor time: "); Serial.print(sensTm.tm_hour); Serial.print(":"); Serial.print(sensTm.tm_min); Serial.print(":"); Serial.print(sensTm.tm_sec); Serial.print(" DST "); Serial.println(sensTm.tm_isdst);
M5.Lcd.setFreeFont(FSSB12);
M5.Lcd.setTextSize(1);
M5.Lcd.setTextColor(TFT_LIGHTGREY, TFT_BLACK);
// char dateStr[30];
// sprintf(dateStr, "%d.%d.%04d", sensTm.tm_mday, sensTm.tm_mon+1, sensTm.tm_year+1900);
// M5.Lcd.drawString(dateStr, 0, 48, GFXFF);
// char timeStr[30];
// sprintf(timeStr, "%02d:%02d:%02d", sensTm.tm_hour, sensTm.tm_min, sensTm.tm_sec);
// M5.Lcd.drawString(timeStr, 0, 72, GFXFF);
char datetimeStr[30];
struct tm timeinfo;
if(cfg.show_current_time) {
if(getLocalTime(&timeinfo)) {
// sprintf(datetimeStr, "%02d:%02d:%02d %d.%d. ", timeinfo.tm_hour, timeinfo.tm_min, timeinfo.tm_sec, timeinfo.tm_mday, timeinfo.tm_mon+1);
sprintf(datetimeStr, "%02d:%02d %d.%d. ", timeinfo.tm_hour, timeinfo.tm_min, timeinfo.tm_mday, timeinfo.tm_mon+1);
} else {
// strcpy(datetimeStr, "??:??:??");
strcpy(datetimeStr, "??:??");
}
} else {
// sprintf(datetimeStr, "%02d:%02d:%02d %d.%d. ", sensTm.tm_hour, sensTm.tm_min, sensTm.tm_sec, sensTm.tm_mday, sensTm.tm_mon+1);
sprintf(datetimeStr, "%02d:%02d %d.%d. ", sensTm.tm_hour, sensTm.tm_min, sensTm.tm_mday, sensTm.tm_mon+1);
}
M5.Lcd.drawString(datetimeStr, 0, 0, GFXFF);
// draw battery status
int8_t battLevel = getBatteryLevel();
Serial.print("Battery level: "); Serial.println(battLevel);
// sprintf(tmpstr, "%d", battLevel);
// M5.Lcd.drawString(tmpstr, 0, 220, GFXFF);
M5.Lcd.fillRect(168, 0, 16, 17, TFT_BLACK);
if(battLevel!=-1) {
switch(battLevel) {
case 0:
drawIcon(168, 1, (uint8_t*)bat0_icon16x16, TFT_RED);
break;
case 25:
drawIcon(168, 1, (uint8_t*)bat1_icon16x16, TFT_YELLOW);
break;
case 50:
drawIcon(168, 1, (uint8_t*)bat2_icon16x16, TFT_WHITE);
break;
case 75:
drawIcon(168, 1, (uint8_t*)bat3_icon16x16, TFT_LIGHTGREY);
break;
case 100:
drawIcon(168, 0, (uint8_t*)plug_icon16x16, TFT_LIGHTGREY);
break;
}
}
M5.Lcd.setTextColor(TFT_WHITE, TFT_BLACK);
M5.Lcd.drawString(cfg.userName, 0, 24, GFXFF);
/*
char diffstr[10];
if( cfg.show_mgdl ) {
sprintf(diffstr, "%+3.0f", (last10sgv[sgvindex]-last10sgv[sgvindex+1])*18 );
} else {
sprintf(diffstr, "%+4.1f", last10sgv[sgvindex]-last10sgv[sgvindex+1] );
}
M5.Lcd.fillRect(130,24,69,23,TFT_BLACK);
M5.Lcd.drawString(diffstr, 130, 24, GFXFF);
*/
/*
if( !cfg.dev_mode ) {
M5.Lcd.drawString("Nightscout", 0, 48, GFXFF);
} else {
char heapstr[20];
sprintf(heapstr, "%i free ", ESP.getFreeHeap());
M5.Lcd.drawString(heapstr, 0, 48, GFXFF);
}
*/
strcpy(NSurl,"https://");
strcat(NSurl,cfg.url);
strcat(NSurl,"/api/v2/properties/iob,cob,delta,loop,basal");
http.begin(NSurl); //HTTP
Serial.print("[HTTP] GET properties...\n");
int httpCode = http.GET();
if(httpCode > 0) {
Serial.printf("[HTTP] GET properties... code: %d\n", httpCode);
if(httpCode == HTTP_CODE_OK) {
// const char* propjson = "{\"iob\":{\"iob\":0,\"activity\":0,\"source\":\"OpenAPS\",\"device\":\"openaps://Spike iPhone 8 Plus\",\"mills\":1557613521000,\"display\":\"0\",\"displayLine\":\"IOB: 0U\"},\"cob\":{\"cob\":0,\"source\":\"OpenAPS\",\"device\":\"openaps://Spike iPhone 8 Plus\",\"mills\":1557613521000,\"treatmentCOB\":{\"decayedBy\":\"2019-05-11T23:05:00.000Z\",\"isDecaying\":0,\"carbs_hr\":20,\"rawCarbImpact\":0,\"cob\":7,\"lastCarbs\":{\"_id\":\"5cd74c26156712edb4b32455\",\"enteredBy\":\"Martin\",\"eventType\":\"Carb Correction\",\"reason\":\"\",\"carbs\":7,\"duration\":0,\"created_at\":\"2019-05-11T22:24:00.000Z\",\"mills\":1557613440000,\"mgdl\":67}},\"display\":0,\"displayLine\":\"COB: 0g\"},\"delta\":{\"absolute\":-4,\"elapsedMins\":4.999483333333333,\"interpolated\":false,\"mean5MinsAgo\":69,\"mgdl\":-4,\"scaled\":-0.2,\"display\":\"-0.2\",\"previous\":{\"mean\":69,\"last\":69,\"mills\":1557613221946,\"sgvs\":[{\"mgdl\":69,\"mills\":1557613221946,\"device\":\"MIAOMIAO\",\"direction\":\"Flat\",\"filtered\":92588,\"unfiltered\":92588,\"noise\":1,\"rssi\":100}]}}}";
String propjson = http.getString();
const size_t propcapacity = 16300;
DynamicJsonDocument propdoc(propcapacity);
Serial.println("Created the second JSON document");
auto propJSONerr = deserializeJson(propdoc, propjson);
if(propJSONerr) {
Serial.println("Properties JSON parsing failed");
M5.Lcd.fillRect(130,24,69,23,TFT_BLACK);
M5.Lcd.setTextColor(TFT_YELLOW, TFT_BLACK);
M5.Lcd.drawString("???", 130, 24, GFXFF);
} else {
Serial.println("Deserialized the second JSON and OK");
JsonObject iob = propdoc["iob"];
float iob_iob = iob["iob"]; // 0
const char* iob_display = iob["display"] | "N/A"; // "0"
const char* iob_displayLine = iob["displayLine"] | "IOB: N/A"; // "IOB: 0U"
Serial.println("IOB OK");
JsonObject cob = propdoc["cob"];
float cob_cob = cob["cob"]; // 0
const char* cob_display = cob["display"] | "N/A"; // 0
const char* cob_displayLine = cob["displayLine"] | "COB: N/A"; // "COB: 0g"
Serial.println("COB OK");
JsonObject delta = propdoc["delta"];
int delta_absolute = delta["absolute"]; // -4
float delta_elapsedMins = delta["elapsedMins"]; // 4.999483333333333
bool delta_interpolated = delta["interpolated"]; // false
int delta_mean5MinsAgo = delta["mean5MinsAgo"]; // 69
int delta_mgdl = delta["mgdl"]; // -4
float delta_scaled = delta["scaled"]; // -0.2
const char* delta_display = delta["display"] | ""; // "-0.2"
M5.Lcd.fillRect(130,24,69,23,TFT_BLACK);
M5.Lcd.drawString(delta_display, 130, 24, GFXFF);
Serial.println("DELTA OK");
JsonObject loop_obj = propdoc["loop"];
JsonObject loop_display = loop_obj["display"];
const char* loop_display_symbol = loop_display["symbol"] | "?"; // "⌁"
const char* loop_display_code = loop_display["code"] | "N/A"; // "enacted"
const char* loop_display_label = loop_display["label"] | "N/A"; // "Enacted"
Serial.println("LOOP OK");
JsonObject basal = propdoc["basal"];
const char* basal_display = basal["display"] | "N/A"; // "T: 0.950U"
Serial.println("BASAL OK");
strlcpy(loopInfoStr, loop_display_label, 64);
strlcpy(basalInfoStr, basal_display, 64);
Serial.println("LOOP copy string OK");
if(cfg.show_COB_IOB) {
M5.Lcd.fillRect(0,48,199,47,TFT_BLACK);
if(iob_iob>0)
M5.Lcd.setTextColor(TFT_WHITE, TFT_BLACK);
else
M5.Lcd.setTextColor(TFT_LIGHTGREY, TFT_BLACK);
Serial.print("iob_displayLine=\""); Serial.print(iob_displayLine); Serial.println("\"");
M5.Lcd.drawString(iob_displayLine, 0, 48, GFXFF);
Serial.println("drawString IOB OK");
if(cob_cob>0)
M5.Lcd.setTextColor(TFT_WHITE, TFT_BLACK);
else
M5.Lcd.setTextColor(TFT_LIGHTGREY, TFT_BLACK);
Serial.print("cob_displayLine=\""); Serial.print(cob_displayLine); Serial.println("\"");
M5.Lcd.drawString(cob_displayLine, 0, 72, GFXFF);
Serial.println("drawString COB OK");
}
}
}
}
// calculate sensor time difference
int sensorDifSec=0;
if(!getLocalTime(&timeinfo)){
sensorDifSec=24*60*60; // too much
} else {
Serial.print("Local time: "); Serial.print(timeinfo.tm_hour); Serial.print(":"); Serial.print(timeinfo.tm_min); Serial.print(":"); Serial.print(timeinfo.tm_sec); Serial.print(" DST "); Serial.println(timeinfo.tm_isdst);
sensorDifSec=difftime(mktime(&timeinfo), sensTime);
}
Serial.print("Sensor time difference = "); Serial.print(sensorDifSec); Serial.println(" sec");
unsigned int sensorDifMin = (sensorDifSec+30)/60;
uint16_t tdColor = TFT_LIGHTGREY;
if(sensorDifMin>5) {
tdColor = TFT_WHITE;
if(sensorDifMin>15) {
tdColor = TFT_RED;
}
}
M5.Lcd.fillRoundRect(200,0,120,90,15,tdColor);
M5.Lcd.setTextSize(1);
M5.Lcd.setFreeFont(FSSB24);
M5.Lcd.setTextDatum(MC_DATUM);
M5.Lcd.setTextColor(TFT_BLACK, tdColor);
if(sensorDifMin>99) {
M5.Lcd.drawString("Err", 260, 32, GFXFF);
} else {
M5.Lcd.drawNumber(sensorDifMin, 260, 32, GFXFF);
}
M5.Lcd.setTextSize(1);
M5.Lcd.setFreeFont(FSSB12);
M5.Lcd.setTextDatum(MC_DATUM);
M5.Lcd.setTextColor(TFT_BLACK, tdColor);
M5.Lcd.drawString("min", 260, 70, GFXFF);
uint16_t glColor = TFT_GREEN;
if(sensSgv<cfg.yellow_low || sensSgv>cfg.yellow_high) {
glColor=TFT_YELLOW; // warning is YELLOW
}
if(sensSgv<cfg.red_low || sensSgv>cfg.red_high) {
glColor=TFT_RED; // alert is RED
}
char glykStr[128];
sprintf(glykStr, "Glyk: %4.1f %s", sensSgv, sensDir);
Serial.println(glykStr);
// M5.Lcd.println(glykStr);
M5.Lcd.fillRect(0, 110, 320, 114, TFT_BLACK);
M5.Lcd.setTextSize(2);
M5.Lcd.setTextDatum(TL_DATUM);
M5.Lcd.setTextColor(glColor, TFT_BLACK);
char sensSgvStr[30];
int smaller_font = 0;
if( cfg.show_mgdl ) {
sprintf(sensSgvStr, "%3.0f", sensSgvMgDl);
} else {
sprintf(sensSgvStr, "%4.1f", sensSgv);
if( sensSgvStr[0]!=' ' )
smaller_font = 1;
}
// Serial.print("SGV string length = "); Serial.print(strlen(sensSgvStr));
// Serial.print(", smaller_font = "); Serial.println(smaller_font);
if( smaller_font ) {
M5.Lcd.setFreeFont(FSSB18);
M5.Lcd.drawString(sensSgvStr, 0, 130, GFXFF);
} else {
M5.Lcd.setFreeFont(FSSB24);
M5.Lcd.drawString(sensSgvStr, 0, 120, GFXFF);
}
int tw=M5.Lcd.textWidth(sensSgvStr);
int th=M5.Lcd.fontHeight(GFXFF);
// Serial.print("textWidth="); Serial.println(tw);
// Serial.print("textHeight="); Serial.println(th);
int arrowAngle = 180;
if(strcmp(sensDir,"DoubleDown")==0)
arrowAngle = 90;
else
if(strcmp(sensDir,"SingleDown")==0)
arrowAngle = 75;
else
if(strcmp(sensDir,"FortyFiveDown")==0)
arrowAngle = 45;
else
if(strcmp(sensDir,"Flat")==0)
arrowAngle = 0;
else
if(strcmp(sensDir,"FortyFiveUp")==0)
arrowAngle = -45;
else
if(strcmp(sensDir,"SingleUp")==0)
arrowAngle = -75;
else
if(strcmp(sensDir,"DoubleUp")==0)
arrowAngle = -90;
else
if(strcmp(sensDir,"NONE")==0)
arrowAngle = 180;
else
if(strcmp(sensDir,"NOT COMPUTABLE")==0)
arrowAngle = 180;
if(arrowAngle!=180)
drawArrow(0+tw+25, 120+40, 10, arrowAngle+85, 40, 40, glColor);
/*
// draw help lines
for(int i=0; i<320; i+=40) {
M5.Lcd.drawLine(i, 0, i, 240, TFT_DARKGREY);
}
for(int i=0; i<240; i+=30) {
M5.Lcd.drawLine(0, i, 320, i, TFT_DARKGREY);
}
M5.Lcd.drawLine(0, 120, 320, 120, TFT_LIGHTGREY);
M5.Lcd.drawLine(160, 0, 160, 240, TFT_LIGHTGREY);
*/
drawMiniGraph();
// calculate last alarm time difference
int alarmDifSec=1000000;
int snoozeDifSec=1000000;
if(!getLocalTime(&timeinfo)){
alarmDifSec=24*60*60; // too much
snoozeDifSec=cfg.snooze_timeout*60; // timeout
} else {
alarmDifSec=difftime(mktime(&timeinfo), lastAlarmTime);
snoozeDifSec=difftime(mktime(&timeinfo), lastSnoozeTime);
if( snoozeDifSec>cfg.snooze_timeout*60 )
snoozeDifSec=cfg.snooze_timeout*60; // timeout
}
Serial.print("Alarm time difference = "); Serial.print(alarmDifSec); Serial.println(" sec");
Serial.print("Snooze time difference = "); Serial.print(snoozeDifSec); Serial.println(" sec");
char tmpStr[10];
if( snoozeDifSec<cfg.snooze_timeout*60 ) {
sprintf(tmpStr, "%i", (cfg.snooze_timeout*60-snoozeDifSec+59)/60);
} else {
strcpy(tmpStr, "Snooze");
}
M5.Lcd.setTextSize(1);
M5.Lcd.setFreeFont(FSSB12);
// Serial.print("sensSgv="); Serial.print(sensSgv); Serial.print(", cfg.snd_alarm="); Serial.println(cfg.snd_alarm);
if((sensSgv<=cfg.snd_alarm) && (sensSgv>=0.1)) {
// red alarm state
// M5.Lcd.fillRect(110, 220, 100, 20, TFT_RED);
Serial.println("ALARM LOW");
M5.Lcd.fillRect(0, 220, 320, 20, TFT_RED);
M5.Lcd.setTextColor(TFT_BLACK, TFT_RED);
int stw=M5.Lcd.textWidth(tmpStr);
M5.Lcd.drawString(tmpStr, 159-stw/2, 220, GFXFF);
if( (alarmDifSec>cfg.alarm_repeat*60) && (snoozeDifSec==cfg.snooze_timeout*60) ) {
sndAlarm();
lastAlarmTime = mktime(&timeinfo);
}
} else {
if((sensSgv<=cfg.snd_warning) && (sensSgv>=0.1)) {
// yellow warning state
// M5.Lcd.fillRect(110, 220, 100, 20, TFT_YELLOW);
Serial.println("WARNING LOW");
M5.Lcd.fillRect(0, 220, 320, 20, TFT_YELLOW);
M5.Lcd.setTextColor(TFT_BLACK, TFT_YELLOW);
int stw=M5.Lcd.textWidth(tmpStr);
M5.Lcd.drawString(tmpStr, 159-stw/2, 220, GFXFF);
if( (alarmDifSec>cfg.alarm_repeat*60) && (snoozeDifSec==cfg.snooze_timeout*60) ) {
sndWarning();
lastAlarmTime = mktime(&timeinfo);
}
} else {
if( sensSgv>=cfg.snd_alarm_high ) {
// red alarm state
// M5.Lcd.fillRect(110, 220, 100, 20, TFT_RED);
Serial.println("ALARM HIGH");
M5.Lcd.fillRect(0, 220, 320, 20, TFT_RED);
M5.Lcd.setTextColor(TFT_BLACK, TFT_RED);
int stw=M5.Lcd.textWidth(tmpStr);
M5.Lcd.drawString(tmpStr, 159-stw/2, 220, GFXFF);
if( (alarmDifSec>cfg.alarm_repeat*60) && (snoozeDifSec==cfg.snooze_timeout*60) ) {
sndAlarm();
lastAlarmTime = mktime(&timeinfo);
}
} else {
if( sensSgv>=cfg.snd_warning_high ) {
// yellow warning state
// M5.Lcd.fillRect(110, 220, 100, 20, TFT_YELLOW);
Serial.println("WARNING HIGH");
M5.Lcd.fillRect(0, 220, 320, 20, TFT_YELLOW);
M5.Lcd.setTextColor(TFT_BLACK, TFT_YELLOW);
int stw=M5.Lcd.textWidth(tmpStr);
M5.Lcd.drawString(tmpStr, 159-stw/2, 220, GFXFF);
if( (alarmDifSec>cfg.alarm_repeat*60) && (snoozeDifSec==cfg.snooze_timeout*60) ) {
sndWarning();
lastAlarmTime = mktime(&timeinfo);
}
} else {
if( sensorDifMin>=cfg.snd_no_readings ) {
// yellow warning state
// M5.Lcd.fillRect(110, 220, 100, 20, TFT_YELLOW);
Serial.println("WARNING NO READINGS");
M5.Lcd.fillRect(0, 220, 320, 20, TFT_YELLOW);
M5.Lcd.setTextColor(TFT_BLACK, TFT_YELLOW);
int stw=M5.Lcd.textWidth(tmpStr);
M5.Lcd.drawString(tmpStr, 159-stw/2, 220, GFXFF);
if( (alarmDifSec>cfg.alarm_repeat*60) && (snoozeDifSec==cfg.snooze_timeout*60) ) {
sndWarning();
lastAlarmTime = mktime(&timeinfo);
}
} else {
// normal glycemia state
M5.Lcd.fillRect(0, 220, 320, 20, TFT_BLACK);
M5.Lcd.setTextColor(TFT_LIGHTGREY, TFT_BLACK);
// draw info line
char infoStr[64];
switch( cfg.info_line ) {
case 0: // sensor information
strcpy(infoStr, sensDev);
if(strcmp(infoStr,"MIAOMIAO")==0) {
if(obj.containsKey("xDrip_raw")) {
strcpy(infoStr,"xDrip MiaoMiao + Libre");
} else {
strcpy(infoStr,"Spike MiaoMiao + Libre");
}
}
if(strcmp(infoStr,"Tomato")==0)
strcat(infoStr," MiaoMiao + Libre");
M5.Lcd.drawString(infoStr, 0, 220, GFXFF);
break;
case 1: // button function icons
// M5.Lcd.drawBitmap(50, 224, 16, 16, (uint8_t*)home_icon16x16);
// M5.Lcd.pushImage(50, 224, 16, 16, (uint8_t*)home_icon16x16);
drawIcon(58, 220, (uint8_t*)sun_icon16x16, TFT_LIGHTGREY);
drawIcon(153, 220, (uint8_t*)clock_icon16x16, TFT_LIGHTGREY);
// drawIcon(153, 220, (uint8_t*)timer_icon16x16, TFT_LIGHTGREY);
drawIcon(246, 220, (uint8_t*)powerbutton_icon16x16, TFT_LIGHTGREY);
break;
case 2: // loop + basal information
strcpy(infoStr, "L: ");
strlcat(infoStr, loopInfoStr, 64);
M5.Lcd.drawString(infoStr, 0, 220, GFXFF);
strcpy(infoStr, "B: ");
strlcat(infoStr, basalInfoStr, 64);
M5.Lcd.drawString(infoStr, 160, 220, GFXFF);
break;
}
}
}
}
}
}
/*
if(sensorDifSec<23) {
if((sensSgv<=cfg.snd_alarm) && (sensSgv>=0.1))
sndAlarm();
else
if((sensSgv<=cfg.snd_warning) && (sensSgv>=0.1))
sndWarning();
}
*/
}
} else {
String errstr = String("[HTTP] GET not ok, error: " + String(httpCode));
Serial.println(errstr);
M5.Lcd.setCursor(0, 23);
M5.Lcd.setTextSize(1);
M5.Lcd.setFreeFont(FSSB12);
M5.Lcd.println(errstr);
wasError = 1;
}
} else {
String errstr = String("[HTTP] GET failed, error: " + String(http.errorToString(httpCode).c_str()));
Serial.println(errstr);
M5.Lcd.setCursor(0, 23);
M5.Lcd.setTextSize(1);
M5.Lcd.setFreeFont(FSSB12);
M5.Lcd.println(errstr);
wasError = 1;
}
http.end();
}
}
// the loop routine runs over and over again forever
void loop(){
delay(20);
buttons_test();
// update glycemia every 15s
if(millis()-msCount>15000) {
update_glycemia();
msCount = millis();
} else {
if(cfg.show_current_time) {
// update current time on display
M5.Lcd.setFreeFont(FSSB12);
M5.Lcd.setTextSize(1);
M5.Lcd.setTextColor(TFT_LIGHTGREY, TFT_BLACK);
if(!getLocalTime(&localTimeInfo)) {
// unknown time
strcpy(localTimeStr,"??:??");
lastMin = 61;
} else {
if(getLocalTime(&localTimeInfo)) {
sprintf(localTimeStr, "%02d:%02d %d.%d. ", localTimeInfo.tm_hour, localTimeInfo.tm_min, localTimeInfo.tm_mday, localTimeInfo.tm_mon+1);
} else {