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M5_NightscoutMon_GSM.ino
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M5_NightscoutMon_GSM.ino
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/* M5Stack Nightscout monitor
Copyright (C) 2018, 2019 Martin Lukasek <martin@lukasek.cz>
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 <stevemarple@googlemail.com> (GNU LGPL v2.1)
ArduinoJson by Benoit BLANCHON (MIT License)
IoT Icon Set by Artur Funk (GPL v3)
Additions to the code:
Peter Leimbach (Nightscout token)
*/
#include <M5Stack.h>
#include <Preferences.h>
#include <WiFi.h>
#include <WiFiMulti.h>
#include <HTTPClient.h>
#include "sys/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"
#include "M5NS_SIM800L.h"
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 door_icon16x16[];
extern const unsigned char warning_icon16x16[];
extern const unsigned char wifi1_icon16x16[];
extern const unsigned char wifi2_icon16x16[];
extern const unsigned char mobile_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[];
Preferences preferences;
tConfig cfg;
const char* ntpServer = "pool.ntp.org"; // "time.nist.gov", "time.google.com"
struct tm localTimeInfo;
int MAX_TIME_RETRY = 5;
int lastSec = 61;
int lastMin = 61;
char localTimeStr[30];
struct err_log_item {
struct tm err_time;
int err_code;
} err_log[10];
int err_log_ptr = 0;
int err_log_count = 0;
int dispPage = 0;
#define MAX_PAGE 2
int icon_xpos[3] = {144, 144+18, 144+2*18};
int icon_ypos[3] = {0, 0, 0};
#ifndef min
#define min(a,b) (((a) < (b)) ? (a) : (b))
#endif
WiFiMulti WiFiMulti;
unsigned long msCount;
unsigned long msCountLog;
unsigned long msStart;
static uint8_t lcdBrightness = 10;
static char *iniFilename = "/M5NS.INI";
#define RX_PIN 16
#define TX_PIN 17
#define RESET_PIN 5
int gprs = 0;
DynamicJsonDocument JSONdoc(16384);
time_t lastAlarmTime = 0;
time_t lastSnoozeTime = 0;
static uint8_t music_data[25000]; // 5s in sample rate 5000 samp/s
void setPageIconPos(int page) {
switch(page) {
case 0:
icon_xpos[0] = 144;
icon_xpos[1] = 144+18;
icon_xpos[2] = 144+2*18;
icon_ypos[0] = 0;
icon_ypos[1] = 0;
icon_ypos[2] = 0;
break;
case 1:
icon_xpos[0] = 126;
icon_xpos[1] = 126+18;
icon_xpos[2] = 126+18; // 320-16;
icon_ypos[0] = 0;
icon_ypos[1] = 0;
icon_ypos[2] = 18; // 220;
break;
default:
icon_xpos[0] = 144;
icon_xpos[1] = 144+18;
icon_xpos[2] = 144+2*18;
icon_ypos[0] = 0;
icon_ypos[1] = 0;
icon_ypos[2] = 0;
break;
}
}
void addErrorLog(int code){
if(err_log_ptr>9) {
for(int i=0; i<9; i++) {
err_log[i].err_time=err_log[i+1].err_time;
err_log[i].err_code=err_log[i+1].err_code;
}
err_log_ptr=9;
}
getLocalTime(&err_log[err_log_ptr].err_time);
err_log[err_log_ptr].err_code=code;
err_log_ptr++;
err_log_count++;
}
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);
/*
int avg=0;
for(uint16_t i=0; i<40000; i++) {
avg+=m5stack_startup_music[i];
if(i%4 == 3) {
music_data[i/4]=avg/4;
avg=0;
}
}
play_music_data(10000, 100);
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");
}
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) {
ledcSetup(TONE_PIN_CHANNEL, 0, 13);
ledcAttachPin(SPEAKER_PIN, TONE_PIN_CHANNEL);
delay(10);
for(int i=0; i<data_length; i++) {
dacWrite(SPEAKER_PIN, music_data[i]/vol);
delayMicroseconds(194); // 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);
} */
for(int t = music_data[data_length - 1] / vol; t >= 0; t--) {
dacWrite(SPEAKER_PIN, t);
delay(2);
}
// dacWrite(SPEAKER_PIN, 0);
// delay(10);
ledcAttachPin(SPEAKER_PIN, TONE_PIN_CHANNEL);
ledcWriteTone(TONE_PIN_CHANNEL, 0);
CLEAR_PERI_REG_MASK(RTC_IO_PAD_DAC1_REG, RTC_IO_PDAC1_XPD_DAC | RTC_IO_PDAC1_DAC_XPD_FORCE);
}
}
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, cfg.alarm_volume);
delay(200);
}
}
void sndWarning() {
for(int j=0; j<3; j++) {
if( cfg.dev_mode )
play_tone(3000, 100, 1);
else
play_tone(3000, 100, cfg.warning_volume);
delay(300);
}
}
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 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);
// addErrorLog(500);
}
if(M5.BtnB.wasPressed()) {
// M5.Lcd.printf("B");
Serial.printf("B");
/*
play_tone(440, 100, 1);
delay(10);
play_tone(880, 100, 1);
delay(10);
play_tone(1760, 100, 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(dispPage<MAX_PAGE)
drawIcon(icon_xpos[1], icon_ypos[1], (uint8_t*)clock_icon16x16, TFT_RED);
}
if(M5.BtnC.wasPressed()) {
// M5.Lcd.printf("C");
Serial.printf("C");
unsigned long btnCPressTime = millis();
long pwrOffTimeout = 4000;
int lastDispTime = pwrOffTimeout/1000;
int longPress = 0;
char tmpstr[32];
while(M5.BtnC.read()) {
M5.Lcd.setTextSize(1);
M5.Lcd.setFreeFont(FSSB12);
// M5.Lcd.fillRect(110, 220, 100, 20, TFT_RED);
// M5.Lcd.fillRect(0, 220, 320, 20, TFT_RED);
M5.Lcd.setTextColor(TFT_WHITE, TFT_BLACK);
int timeToPwrOff = (pwrOffTimeout - (millis()-btnCPressTime))/1000;
if((lastDispTime!=timeToPwrOff) && (millis()-btnCPressTime>800)) {
longPress = 1;
sprintf(tmpstr, "OFF in %1d ", timeToPwrOff);
M5.Lcd.drawString(tmpstr, 210, 220, GFXFF);
lastDispTime=timeToPwrOff;
}
if(timeToPwrOff<=0) {
// play_tone(3000, 100, 1);
M5.setWakeupButton(BUTTON_C_PIN);
M5.powerOFF();
}
M5.update();
}
if(longPress) {
M5.Lcd.fillRect(210, 220, 110, 20, TFT_BLACK);
drawIcon(246, 220, (uint8_t*)door_icon16x16, TFT_LIGHTGREY);
} else {
dispPage++;
if(dispPage>MAX_PAGE)
dispPage = 0;
// update_glycemia();
setPageIconPos(dispPage);
M5.Lcd.clear(BLACK);
msCount = millis()-16000;
// play_tone(440, 100, 1);
}
/*
for (int i=0;i<25000;i++) {
music_data[i]=alarmSndData[i];
}
play_music_data(25000, 10); */
}
}
void network_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
for(int i=0; i<=9; i++) {
if((cfg.wlanssid[i][0]!=0) && (cfg.wlanpass[i][0]!=0))
WiFiMulti.addAP(cfg.wlanssid[i], cfg.wlanpass[i]);
}
Serial.println();
M5.Lcd.println("");
Serial.print("Wait for WiFi... ");
M5.Lcd.print("Wait for WiFi... ");
int retry=0;
while(WiFiMulti.run()!=WL_CONNECTED && retry<5) {
Serial.print(".");
M5.Lcd.print(".");
retry++;
delay(500);
}
Serial.println("");
M5.Lcd.println("");
if(WiFiMulti.run()==WL_CONNECTED) {
Serial.print("WiFi connected to SSID "); Serial.println(WiFi.SSID());
M5.Lcd.print("WiFi SSID "); M5.Lcd.println(WiFi.SSID());
Serial.println("IP address: ");
M5.Lcd.println("IP address: ");
Serial.println(WiFi.localIP());
M5.Lcd.println(WiFi.localIP());
configTime(cfg.timeZone, cfg.dst, ntpServer, "time.nist.gov", "time.google.com");
delay(1000);
Serial.print("Waiting for time... ");
M5.Lcd.print("Waiting for time... ");
int i = 0;
while(!getLocalTime(&localTimeInfo)) {
Serial.print(".");
M5.Lcd.print(".");
delay(1000);
i++;
if (i > MAX_TIME_RETRY) {
Serial.print("Gave up waiting for time to have a valid value.");
break;
}
}
Serial.println();
} else {
Serial.println("WiFi not connected, will try to connect GPRS");
M5.Lcd.println("Connecting GPRS... ");
reset_SIM800();
SIM800_beginGPRS(cfg.apn);
String json=get_json("http://worldtimeapi.org/api/timezone/Europe/Prague");
const size_t capacity = JSON_OBJECT_SIZE(20) + 500;
DynamicJsonDocument doc(capacity);
deserializeJson(doc, json);
struct timeval tv;
tv.tv_sec = doc["unixtime"]; // 1563777405
if(tv.tv_sec>1563777405)
gprs=1;
settimeofday(&tv, NULL);
// setTimeZone(cfg.timeZone, cfg.dst);
setenv("TZ", "CET-1CEST,M3.5.0,M10.5.0/3", 1); // "CET-1CEST,M3.5.0,M10.5.0/3" or "<02>-2"
SIM800_endGPRS();
}
printLocalTime();
Serial.println("Network connect finished");
M5.Lcd.println("Network connect finished");
}
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();
// setup possible SIM800L module access
pinMode(RESET_PIN, OUTPUT);
digitalWrite(RESET_PIN, HIGH);
Serial2.begin(9600, SERIAL_8N1, RX_PIN, TX_PIN);
delay(100);
// 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.print("Free Heap: "); Serial.println(ESP.getFreeHeap());
uint8_t cardType = SD.cardType();
if(cardType == CARD_NONE){
Serial.println("No SD card attached");
M5.Lcd.println("No SD card attached");
while(1);
}
Serial.print("SD Card Type: ");
M5.Lcd.print("SD Card Type: ");
if(cardType == CARD_MMC){
Serial.println("MMC");
M5.Lcd.println("MMC");
} else if(cardType == CARD_SD){
Serial.println("SDSC");
M5.Lcd.println("SDSC");
} else if(cardType == CARD_SDHC){
Serial.println("SDHC");
M5.Lcd.println("SDHC");
} else {
Serial.println("UNKNOWN");
M5.Lcd.println("UNKNOWN");
}
uint64_t cardSize = SD.cardSize() / (1024 * 1024);
Serial.printf("SD Card Size: %llu MB\n", cardSize);
M5.Lcd.printf("SD Card Size: %llu MB\n", cardSize);
readConfiguration(iniFilename, &cfg);
// strcpy(cfg.url, "user.herokuapp.com");
// cfg.dev_mode = 0;
// cfg.show_mgdl = 1;
// cfg.default_page = 1;
// strcpy(cfg.restart_at_time, "21:59");
// cfg.restart_at_logged_errors=3;
// cfg.show_COB_IOB = 1;
// cfg.snd_warning = 5.5;
// cfg.snd_alarm = 4.5;
// cfg.snd_warning_high = 9;
// cfg.snd_alarm_high = 14;
// cfg.alarm_volume = 0;
// cfg.warning_volume = 0;
// cfg.snd_warning_at_startup = 1;
// cfg.snd_alarm_at_startup = 1;
// cfg.alarm_repeat = 1;
// cfg.snooze_timeout = 2;
// cfg.brightness1 = 0;
// cfg.info_line = 1;
lcdBrightness = cfg.brightness1;
M5.Lcd.setBrightness(lcdBrightness);
startupLogo();
yield();
preferences.begin("M5StackNS", false);
if(preferences.getBool("SoftReset", false)) {
// no startup sound after soft reset and remove the SoftReset key
lastSnoozeTime=preferences.getUInt("LastSnoozeTime", 0);
preferences.remove("SoftReset");
preferences.remove("LastSnoozeTime");
} else {
// normal startup so decide by M5NS.INI if to play startup sound
if(cfg.snd_warning_at_startup) {
play_tone(3000, 100, cfg.warning_volume);
delay(500);
}
if(cfg.snd_alarm_at_startup) {
play_tone(660, 400, cfg.alarm_volume);
delay(500);
}
}
preferences.end();
delay(1000);
M5.Lcd.fillScreen(BLACK);
M5.Lcd.setBrightness(lcdBrightness);
network_connect();
yield();
M5.Lcd.setBrightness(lcdBrightness);
M5.Lcd.fillScreen(BLACK);
Serial.println("DBG back from WIFI setup");
// fill dummy values to error log
/*
for(int i=0; i<10; i++) {
getLocalTime(&err_log[i].err_time);
err_log[i].err_code=404;
}
getLocalTime(&err_log[6].err_time);
err_log[6].err_code=HTTPC_ERROR_CONNECTION_REFUSED;
err_log_ptr=10;
err_log_count=23;
*/
// test file with time stamps
// msCountLog = millis()-6000;
dispPage = cfg.default_page;
setPageIconPos(dispPage);
// stat startup time
msStart = millis();
// update glycemia now
if(gprs)
msCount = msStart-120000;
else
msCount = msStart-16000;
Serial.println("DBG setup() END");
}
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);
}
struct NSinfo {
char sensDev[64];
uint64_t rawtime = 0;
time_t sensTime = 0;
struct tm sensTm;
char sensDir[32];
float sensSgvMgDl = 0;
float sensSgv = 0;
float last10sgv[10];
bool is_xDrip = 0;
int arrowAngle = 180;
float iob = 0;
char iob_display[16];
char iob_displayLine[16];
float cob = 0;
char cob_display[16];
char cob_displayLine[16];
int delta_absolute = 0;
float delta_elapsedMins = 0;
bool delta_interpolated = 0;
int delta_mean5MinsAgo = 0;
int delta_mgdl = 0;
float delta_scaled = 0;
char delta_display[16];
char loop_display_symbol = '?';
char loop_display_code[16];
char loop_display_label[16];
char basal_display[16];
float basal_current = 0;
float basal_tempbasal = 0;
float basal_combobolusbasal = 0;
float basal_totalbasal = 0;
} ns;
void drawMiniGraph(struct NSinfo *ns){
/*
// 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 = *(ns->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(*(ns->last10sgv+i)); Serial.print(" ");
if(*(ns->last10sgv+9-i)!=0)
M5.Lcd.fillCircle(234+i*9, 203-(glk-3.0)*10.0, 3, sgvColor);
}
Serial.println();
}
int readNightscout(char *url, char *token, struct NSinfo *ns) {
HTTPClient http;
char NSurl1[128], NSurl2[128];
int err=0;
char tmpstr[32];
String json, propjson;
// configure target server and url
if(strncmp(url, "http", 4))
strcpy(NSurl1,"https://");
else
strcpy(NSurl1,"");
strcat(NSurl1,url);
strcat(NSurl1,"/api/v1/entries.json");
if ((token!=NULL) && (strlen(token)>0)){
strcat(NSurl1,"?token=");
strcat(NSurl1,token);
}
if(strncmp(url, "http", 4))
strcpy(NSurl2,"https://");
else
strcpy(NSurl2,"");
strcat(NSurl2,url);
strcat(NSurl2,"/api/v2/properties/iob,cob,delta,loop,basal");
if (strlen(token) > 0){
strcat(NSurl2,"&token=");
strcat(NSurl2,token);
}
Serial.println("DBG readNightscout(...) BEGIN");
if((WiFiMulti.run() == WL_CONNECTED)) {
M5.Lcd.fillRect(icon_xpos[0], icon_ypos[0], 16, 16, BLACK);
drawIcon(icon_xpos[0], icon_ypos[0], (uint8_t*)wifi2_icon16x16, TFT_BLUE);
Serial.print("JSON SGV query NSurl = \'");Serial.print(NSurl1);Serial.print("\'\n");
http.begin(NSurl1); //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) {
json = http.getString();
} else {
addErrorLog(httpCode);
err=httpCode;
}
} else {
addErrorLog(httpCode);
err=httpCode;
}
http.end();
M5.Lcd.fillRect(icon_xpos[0], icon_ypos[0], 16, 16, BLACK);
drawIcon(icon_xpos[0], icon_ypos[0], (uint8_t*)wifi1_icon16x16, TFT_BLUE);
Serial.print("Properties query NSurl = \'");Serial.print(NSurl2);Serial.print("\'\n");
http.begin(NSurl2); //HTTP
Serial.print("[HTTP] GET properties...\n");
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}]}}}";
propjson = http.getString();
} else {
addErrorLog(httpCode);
err=httpCode;
}
} else {
addErrorLog(httpCode);
err=httpCode;
}
http.end();
M5.Lcd.fillRect(icon_xpos[0], icon_ypos[0], 16, 16, BLACK);
} else {
// WiFi not connected - will try to read form GSM/GPRS
Serial.println("WiFi not connected, will try to connect GPRS");
// reset_SIM800();
M5.Lcd.fillRect(icon_xpos[0], icon_ypos[0], 16, 16, BLACK);
drawIcon(icon_xpos[0], icon_ypos[0], (uint8_t*)mobile_icon16x16, TFT_BLUE);
int gprs_retries=0;
do {
if(!SIM800_beginGPRS(cfg.apn)) {
json=get_json(NSurl1);
propjson=get_json(NSurl2);
SIM800_endGPRS();
} else {
json="";
propjson="";
}
if(json.length()<5 && propjson.length()<5)
reset_SIM800();
gprs_retries++;
} while(json.length()<5 && propjson.length()<5 && gprs_retries<5);
if(gprs_retries>=5) {
Serial.println("DBG readNightscout(...) END - FORCING RESTART");
ESP.restart();
}
M5.Lcd.fillRect(icon_xpos[0], icon_ypos[0], 16, 16, BLACK);
}
Serial.print("Free Heap = "); Serial.println(ESP.getFreeHeap());
Serial.print("The 1st json=\'"); Serial.print(json); Serial.println("\'");
if(json.length()>5) {
// const size_t capacity = JSON_ARRAY_SIZE(10) + 10*JSON_OBJECT_SIZE(19) + 3840;
// Serial.print("JSON size needed= "); Serial.print(capacity);
auto JSONerr = deserializeJson(JSONdoc, json);
Serial.println("JSON deserialized OK");
JsonArray arr=JSONdoc.as<JsonArray>();
Serial.print("JSON array size = "); Serial.println(arr.size());
if (JSONerr || arr.size()==0) { //Check for errors in parsing
if(JSONerr) {
err=1001; // "JSON parsing failed"
} else {
err=1002; // "No data from Nightscout"
}
addErrorLog(err);
} else {
JsonObject obj;
int sgvindex = 0;
do {
obj=JSONdoc[sgvindex].as<JsonObject>();
sgvindex++;
} while ((!obj.containsKey("sgv")) && (sgvindex<(arr.size()-1)));
sgvindex--;
if(sgvindex<0 || sgvindex>(arr.size()-1))
sgvindex=0;
strlcpy(ns->sensDev, JSONdoc[sgvindex]["device"] | "N/A", 64);
ns->is_xDrip = obj.containsKey("xDrip_raw");
ns->rawtime = JSONdoc[sgvindex]["date"].as<long long>(); // sensTime is time in milliseconds since 1970, something like 1555229938118
strlcpy(ns->sensDir, JSONdoc[sgvindex]["direction"] | "N/A", 32);
ns->sensSgv = JSONdoc[sgvindex]["sgv"]; // get value of sensor measurement
ns->sensTime = ns->rawtime / 1000; // no milliseconds, since 2000 would be - 946684800, but ok
for(int i=0; i<=9; i++) {
ns->last10sgv[i]=JSONdoc[i]["sgv"];
ns->last10sgv[i]/=18.0;
}
ns->sensSgvMgDl = ns->sensSgv;
// internally we work in mmol/L
ns->sensSgv/=18.0;
localtime_r(&ns->sensTime, &ns->sensTm);
ns->arrowAngle = 180;
if(strcmp(ns->sensDir,"DoubleDown")==0)
ns->arrowAngle = 90;
else
if(strcmp(ns->sensDir,"SingleDown")==0)
ns->arrowAngle = 75;
else
if(strcmp(ns->sensDir,"FortyFiveDown")==0)
ns->arrowAngle = 45;
else
if(strcmp(ns->sensDir,"Flat")==0)
ns->arrowAngle = 0;
else
if(strcmp(ns->sensDir,"FortyFiveUp")==0)
ns->arrowAngle = -45;
else
if(strcmp(ns->sensDir,"SingleUp")==0)
ns->arrowAngle = -75;
else
if(strcmp(ns->sensDir,"DoubleUp")==0)
ns->arrowAngle = -90;
else
if(strcmp(ns->sensDir,"NONE")==0)
ns->arrowAngle = 180;
else
if(strcmp(ns->sensDir,"NOT COMPUTABLE")==0)
ns->arrowAngle = 180;
Serial.print("sensDev = ");
Serial.println(ns->sensDev);
Serial.print("sensTime = ");
Serial.print(ns->sensTime);
sprintf(tmpstr, " (JSON %lld)", (long long) ns->rawtime);
Serial.print(tmpstr);
sprintf(tmpstr, " = %s", ctime(&ns->sensTime));
Serial.print(tmpstr);
Serial.print("sensSgv = ");
Serial.println(ns->sensSgv);
Serial.print("sensDir = ");
Serial.println(ns->sensDir);
// Serial.print(ns->sensTm.tm_year+1900); Serial.print(" / "); Serial.print(ns->sensTm.tm_mon+1); Serial.print(" / "); Serial.println(ns->sensTm.tm_mday);
Serial.print("Sensor time: "); Serial.print(ns->sensTm.tm_hour); Serial.print(":"); Serial.print(ns->sensTm.tm_min); Serial.print(":"); Serial.print(ns->sensTm.tm_sec); Serial.print(" DST "); Serial.println(ns->sensTm.tm_isdst);
}
}
if(err!=0)
return err;
Serial.print("The properties json=\'"); Serial.print(propjson); Serial.println("\'");
if(propjson.length()>5) {
auto propJSONerr = deserializeJson(JSONdoc, propjson);
if(propJSONerr) {
err=1003; // "JSON2 parsing failed"
addErrorLog(err);
} else {
Serial.println("Deserialized the second JSON and OK");
JsonObject iob = JSONdoc["iob"];
ns->iob = iob["iob"]; // 0
strncpy(ns->iob_display, iob["display"] | "N/A", 16); // 0
strncpy(ns->iob_displayLine, iob["displayLine"] | "IOB: N/A", 16); // "IOB: 0U"
// Serial.println("IOB OK");
JsonObject cob = JSONdoc["cob"];
ns->cob = cob["cob"]; // 0
strncpy(ns->cob_display, cob["display"] | "N/A", 16); // 0
strncpy(ns->cob_displayLine, cob["displayLine"] | "COB: N/A", 16); // "COB: 0g"
// Serial.println("COB OK");
JsonObject delta = JSONdoc["delta"];
ns->delta_absolute = delta["absolute"]; // -4
ns->delta_elapsedMins = delta["elapsedMins"]; // 4.999483333333333
ns->delta_interpolated = delta["interpolated"]; // false
ns->delta_mean5MinsAgo = delta["mean5MinsAgo"]; // 69
ns->delta_mgdl = delta["mgdl"]; // -4
ns->delta_scaled = delta["scaled"]; // -0.2
strncpy(ns->delta_display, delta["display"] | "", 16); // "-0.2"
// Serial.println("DELTA OK");
JsonObject loop_obj = JSONdoc["loop"];
JsonObject loop_display = loop_obj["display"];
strncpy(tmpstr, loop_display["symbol"] | "?", 4); // "⌁"
ns->loop_display_symbol = tmpstr[0];
strncpy(ns->loop_display_code, loop_display["code"] | "N/A", 16); // "enacted"
strncpy(ns->loop_display_label, loop_display["label"] | "N/A", 16); // "Enacted"
// Serial.println("LOOP OK");
JsonObject basal = JSONdoc["basal"];
strncpy(ns->basal_display, basal["display"] | "N/A", 16); // "T: 0.950U"
// Serial.println("BASAL OK");
JsonObject basal_current_doc = JSONdoc["basal"]["current"];
ns->basal_current = basal_current_doc["basal"]; // 0.1
ns->basal_tempbasal = basal_current_doc["tempbasal"]; // 0.1
ns->basal_combobolusbasal = basal_current_doc["combobolusbasal"]; // 0
ns->basal_totalbasal = basal_current_doc["totalbasal"]; // 0.1
// Serial.println("LOOP OK");
}
}
return err;
}
void drawBatteryStatus(int16_t x, int16_t y) {
int8_t battLevel = getBatteryLevel();
Serial.print("Battery level: "); Serial.println(battLevel);
M5.Lcd.fillRect(x, y, 16, 17, TFT_BLACK);
if(battLevel!=-1) {
switch(battLevel) {
case 0:
drawIcon(x, y+1, (uint8_t*)bat0_icon16x16, TFT_RED);
break;
case 25:
drawIcon(x, y+1, (uint8_t*)bat1_icon16x16, TFT_YELLOW);
break;
case 50:
drawIcon(x, y+1, (uint8_t*)bat2_icon16x16, TFT_WHITE);
break;
case 75:
drawIcon(x, y+1, (uint8_t*)bat3_icon16x16, TFT_LIGHTGREY);
break;
case 100:
drawIcon(x, y+0, (uint8_t*)plug_icon16x16, TFT_LIGHTGREY);
break;
}
}
}