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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)
DHT12 by Bobadas (Public domain)
Additions to the code:
Peter Leimbach (Nightscout token)
Patrick Sonnerat (Dexcom Sugarmate connection)
Sulka Haro (Nightscout API queries help)
*/
#include <Arduino.h>
#include <M5Stack.h>
#include <Preferences.h>
// #include <WiFi.h>
#include <WiFiMulti.h>
#include <WiFiUdp.h>
#include <WebServer.h>
#include <ESPmDNS.h>
#include <HTTPClient.h>
#include <HTTPUpdate.h>
#include "time.h"
#include "externs.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 "M5NSWebConfig.h"
#include "DHT12.h"
#include "SHT3X.h"
#include <Wire.h> //The DHT12 uses I2C comunication.
DHT12 dht12;
SHT3X sht30;
String M5NSversion("2020051202");
// The UDP library class
WiFiUDP udp;
#define UDP_TX_PACKET_MAX_SIZE 2048
#define UDP_SEND_RETRIES 3
// IP address to send UDP data to
// const char * udpAddress = "192.168.1.255";
const int udpPort = 50555;
// buffers for receiving and sending UDP data
char packetBuffer[UDP_TX_PACKET_MAX_SIZE]; //buffer to hold incoming packet,
// 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 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;
WebServer w3srv(80);
const char* ntpServer = "pool.ntp.org"; // "time.nist.gov", "time.google.com"
struct tm localTimeInfo;
int MAX_TIME_RETRY = 30;
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 3
int maxPage = MAX_PAGE;
// icon positions for the first page - WiFi/log, Snooze, Battery
int icon_xpos[3] = {144, 144+18, 144+2*18};
int icon_ypos[3] = {0, 0, 0};
// analog clock global variables
uint16_t osx=120, osy=120, omx=120, omy=120, ohx=120, ohy=120; // Saved H, M, S x & y coords
boolean initial = 1;
boolean mDNSactive = false;
#ifndef min
#define min(a,b) (((a) < (b)) ? (a) : (b))
#endif
#ifndef M_PI
#define M_PI 3.14159265358979323846
#endif
void draw_page();
WiFiMulti WiFiMultiple;
unsigned long msCount;
// unsigned long msCountLog;
unsigned long msStart;
uint8_t lcdBrightness = 10;
const char iniFilename[] = "/M5NS.INI";
DynamicJsonDocument JSONdoc(16384);
time_t lastAlarmTime = 0;
time_t snoozeUntil = 0;
int snoozeMult = 0;
unsigned long lastButtonMillis = 0;
int udpSendSnoozeRetries = 0;
static uint8_t music_data[25000]; // 5s in sample rate 5000 samp/s
struct NSinfo ns;
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;
case 2:
icon_xpos[0] = 0+18;
icon_xpos[1] = 0+18;
icon_xpos[2] = 0+18;
icon_ypos[0] = 110-18-9;
icon_ypos[1] = 110-18+9;
icon_ypos[2] = 110-18+27;
break;
default:
icon_xpos[0] = 266;
icon_xpos[1] = 266+18;
icon_xpos[2] = 266+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++;
}
uint16_t crc16_update(uint16_t crc, uint8_t a)
{
int i;
crc ^= a;
for (i = 0; i < 8; ++i)
{
if (crc & 1)
crc = (crc >> 1) ^ 0xA001;
else
crc = (crc >> 1);
}
return crc;
}
uint16_t calcCRC(char* str)
{
uint16_t crc=0; // starting value as you like, must be the same before each calculation
for (int i=0;i<strlen(str);i++) // for each character in the string
{
crc= crc16_update (crc, str[i]); // update the crc value
}
return crc;
}
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);
/* UDP send test
IPAddress broadcastIp = ~WiFi.subnetMask() | WiFi.gatewayIP();
Serial.print("Sending broadcast to: ");
Serial.println(broadcastIp);
udp.beginPacket(broadcastIp, udpPort); // udpAddress
udp.printf("Seconds since boot: %lu", millis()/1000);
udp.endPacket();
*/
}
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;
bool timeOK = getLocalTime(&timeinfo);
if( (millis()-lastButtonMillis)<2000 ) {
// snoozing just recently - will multiply snooze time
// Serial.printf("lastButton < 2s \r\n");
snoozeMult++;
if(snoozeMult>4)
snoozeMult = 0;
} else {
// Serial.printf("lastButton > 2s, MULT = 1\r\n");
// new Snooze
snoozeMult = 1;
}
if(!timeOK){
// Serial.printf("Time not OK - NO SLEEP\r\n");
snoozeUntil = 0;
} else {
snoozeUntil = mktime(&timeinfo) + snoozeMult*cfg.snooze_timeout*60;
Serial.print("snoozeUntil = "); Serial.println(snoozeUntil);
}
M5.Lcd.fillRect(110, 220, 100, 20, TFT_WHITE);
M5.Lcd.setTextDatum(TL_DATUM);
M5.Lcd.setTextSize(1);
M5.Lcd.setFreeFont(FSSB12);
M5.Lcd.setTextColor(TFT_BLACK, TFT_WHITE);
char tmpStr[10];
int snoozeRemaining = 0;
if(timeOK) {
snoozeRemaining = difftime(snoozeUntil, mktime(&timeinfo));
if(snoozeRemaining<0)
snoozeRemaining = 0;
}
if(snoozeMult==0)
strcpy(tmpStr, "OFF");
else
sprintf(tmpStr, "%i", (snoozeRemaining+59)/60);
int txw=M5.Lcd.textWidth(tmpStr);
Serial.print("Set SNOOZE: "); Serial.print(tmpStr); Serial.print(", snoozeUntil-now = "); Serial.println(snoozeRemaining);
M5.Lcd.drawString(tmpStr, 159-txw/2, 220, GFXFF);
if(dispPage<maxPage) {
if(snoozeMult==0)
M5.Lcd.fillRect(icon_xpos[1], icon_ypos[1], 16, 16, BLACK);
else
drawIcon(icon_xpos[1], icon_ypos[1], (uint8_t*)clock_icon16x16, TFT_RED);
}
udpSendSnoozeRetries = UDP_SEND_RETRIES;
lastButtonMillis = millis();
M5.update();
}
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.Power.setWakeupButton(BUTTON_C_PIN);
M5.Power.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>maxPage)
dispPage = 0;
setPageIconPos(dispPage);
M5.Lcd.clear(BLACK);
// msCount = millis()-16000;
draw_page();
// play_tone(440, 100, 1);
}
/*
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
for(int i=0; i<=9; i++) {
if(cfg.wlanssid[i][0]!=0) {
if(cfg.wlanpass[i][0]==0) {
// no or empty password -> send NULL
WiFiMultiple.addAP(cfg.wlanssid[i], NULL);
} else {
WiFiMultiple.addAP(cfg.wlanssid[i], cfg.wlanpass[i]);
}
}
}
Serial.println();
M5.Lcd.println("");
Serial.print("Wait for WiFi... ");
M5.Lcd.print("Wait for WiFi... ");
while(WiFiMultiple.run() != WL_CONNECTED) {
Serial.print(".");
M5.Lcd.print(".");
delay(500);
}
Serial.println("");
M5.Lcd.println("");
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.");
int i = 0;
while(!getLocalTime(&localTimeInfo)) {
Serial.print(".");
delay(1000);
i++;
if (i > MAX_TIME_RETRY) {
Serial.print("Gave up waiting for time to have a valid value.");
break;
}
}
Serial.println();
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;
}
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(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 NSurl[128];
int err=0;
char tmpstr[32];
if((WiFiMultiple.run() == WL_CONNECTED)) {
// configure target server and url
if(strncmp(url, "http", 4))
strcpy(NSurl,"https://");
else
strcpy(NSurl,"");
strcat(NSurl,url);
if(strstr(NSurl,"sugarmate") != NULL) // Sugarmate JSON URL for Dexcom follower
ns->is_Sugarmate = 1;
else
{
ns->is_Sugarmate = 0;
if(cfg.sgv_only) {
strcat(NSurl,"/api/v1/entries.json?find[type][$eq]=sgv");
} else {
strcat(NSurl,"/api/v1/entries.json");
}
if ((token!=NULL) && (strlen(token)>0)) {
if(strchr(NSurl,'?'))
strcat(NSurl,"&token=");
else
strcat(NSurl,"?token=");
strcat(NSurl,token);
}
}
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 query NSurl = \'");Serial.print(NSurl);Serial.print("\'\r\n");
http.begin(NSurl); //HTTP
Serial.print("[HTTP] GET...\r\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\r\n", httpCode);
// file found at server
if(httpCode == HTTP_CODE_OK) {
String json = http.getString();
// remove any non text characters (just for sure)
for(int i=0; i<json.length(); i++) {
// Serial.print(json.charAt(i), DEC); Serial.print(" = "); Serial.println(json.charAt(i));
if(json.charAt(i)<32 /* || json.charAt(i)=='\\' */) {
json.setCharAt(i, 32);
}
}
// json.replace("\\n"," ");
// invalid Unicode character defined by Ascensia Diabetes Care Bluetooth Glucose Meter or Medtronic
// ArduinoJSON does not accept any unicode surrogate pairs like \u0032 or \u0000
json.replace("\\u0000"," ");
json.replace("\\u000b"," ");
json.replace("\\u0032"," ");
// 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);
int ndx=0;
int sr=json.indexOf("\"date\":", ndx);
while(sr!=-1) {
ndx=sr+1;
if(sr+20<json.length()) {
// Serial.printf("Found date at position %d with char '%c' at +20\r\n", sr, json.charAt(sr+20));
if(json.charAt(sr+20)=='.') {
Serial.printf("Deleting at postion %d char '%c'\r\n", sr+20, json.charAt(sr+20));
json.remove(sr+20,1);
while(sr+20<json.length() && json.charAt(sr+20)>='0' && json.charAt(sr+20)<='9') {
Serial.printf("Cyclus deleting at postition %d char '%c'\r\n", sr+20, json.charAt(sr+20));
json.remove(sr+20,1);
}
}
}
sr=json.indexOf("\"date\":", ndx);
}
// Serial.println(json);
Serial.print("Free Heap = "); Serial.println(ESP.getFreeHeap());
DeserializationError JSONerr = deserializeJson(JSONdoc, json);
if(JSONerr) {
Serial.printf("JSON DeserializationError %s\r\n", JSONerr.c_str());
} else {
Serial.println("JSON deserialized OK");
}
JsonArray arr=JSONdoc.as<JsonArray>();
Serial.print("JSON array size = "); Serial.println(arr.size());
if (JSONerr || (ns->is_Sugarmate==0 && arr.size()==0)) { //Check for errors in parsing
if(JSONerr) {
err=1001; // "JSON parsing failed"
// Serial.println("JSON parsing failed");
} else {
err=1002; // "No data from Nightscout"
// Serial.println("No data from Nightscout");
}
addErrorLog(err);
} else {
JsonObject obj;
if(ns->is_Sugarmate==0) {
// Nightscout values
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");
/*
JsonVariant answer = JSONdoc[sgvindex]["date"];
const char* s = answer.as<char*>();
if(s!=NULL)
strlcpy(tmpstr, s, 32);
else
tmpstr[0]=0;
Serial.printf("DATE string: %s\r\n", tmpstr);
double LD=answer;
Serial.printf("DATE double: %lf\r\n", LD);
*/
ns->rawtime = JSONdoc[sgvindex]["date"].as<long long>(); // sensTime is time in milliseconds since 1970, something like 1555229938118
ns->sensTime = ns->rawtime / 1000; // no milliseconds, since 2000 would be - 946684800, but ok
strlcpy(ns->sensDir, JSONdoc[sgvindex]["direction"] | "N/A", 32);
ns->sensSgv = JSONdoc[sgvindex]["sgv"]; // get value of sensor measurement
for(int i=0; i<=9; i++) {
ns->last10sgv[i]=JSONdoc[i]["sgv"];
ns->last10sgv[i]/=18.0;
}
} else {
// Sugarmate values
strcpy(ns->sensDev, "Sugarmate");
ns->is_xDrip = 0;
ns->sensSgv = JSONdoc["value"]; // get value of sensor measurement
time_t tmptime = JSONdoc["x"]; // time in milliseconds since 1970
if(ns->sensTime != tmptime) {
for(int i=9; i>0; i--) { // add new value and shift buffer
ns->last10sgv[i]=ns->last10sgv[i-1];
}
ns->last10sgv[0] = ns->sensSgv;
ns->sensTime = tmptime;
}
ns->rawtime = (long long)ns->sensTime * (long long)1000; // possibly not needed, but to make the structure values complete
strlcpy(ns->sensDir, JSONdoc["trend_words"] | "N/A", 32);
ns->delta_mgdl = JSONdoc["delta"]; // get value of sensor measurement
ns->delta_absolute = ns->delta_mgdl;
ns->delta_interpolated = 0;
ns->delta_scaled = ns->delta_mgdl/18.0;
if(cfg.show_mgdl) {
sprintf(ns->delta_display, "%+d", ns->delta_mgdl);
} else {
sprintf(ns->delta_display, "%+.1f", ns->delta_scaled);
}
}
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 || strcmp(ns->sensDir,"DOUBLE_DOWN")==0)
ns->arrowAngle = 90;
else
if(strcmp(ns->sensDir,"SingleDown")==0 || strcmp(ns->sensDir,"SINGLE_DOWN")==0)
ns->arrowAngle = 75;
else
if(strcmp(ns->sensDir,"FortyFiveDown")==0 || strcmp(ns->sensDir,"FORTY_FIVE_DOWN")==0)
ns->arrowAngle = 45;
else
if(strcmp(ns->sensDir,"Flat")==0 || strcmp(ns->sensDir,"FLAT")==0)
ns->arrowAngle = 0;
else
if(strcmp(ns->sensDir,"FortyFiveUp")==0 || strcmp(ns->sensDir,"FORTY_FIVE_UP")==0)
ns->arrowAngle = -45;
else
if(strcmp(ns->sensDir,"SingleUp")==0 || strcmp(ns->sensDir,"SINGLE_UP")==0)
ns->arrowAngle = -75;
else
if(strcmp(ns->sensDir,"DoubleUp")==0 || strcmp(ns->sensDir,"DOUBLE_UP")==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);
}
} else {
addErrorLog(httpCode);
err=httpCode;
}
} else {
addErrorLog(httpCode);
err=httpCode;
}
http.end();
if(err!=0) {
Serial.printf("Returnining with error %d\r\n",err);
return err;
}
if(ns->is_Sugarmate)
return 0; // no second query if using Sugarmate
// the second query
if(strncmp(url, "http", 4))
strcpy(NSurl,"https://");
else
strcpy(NSurl,"");
strcat(NSurl,url);
switch(cfg.info_line) {
case 2:
strcat(NSurl,"/api/v2/properties/iob,cob,delta,loop,basal");
break;
case 3:
strcat(NSurl,"/api/v2/properties/iob,cob,delta,openaps,basal");
break;
default:
strcat(NSurl,"/api/v2/properties/iob,cob,delta,basal");
}
if (strlen(token) > 0){
strcat(NSurl,"?token=");
strcat(NSurl,token);
}
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(NSurl);Serial.print("\'\r\n");
http.begin(NSurl); //HTTP
Serial.print("[HTTP] GET properties...\r\n");
httpCode = http.GET();
if(httpCode > 0) {
Serial.printf("[HTTP] GET properties... code: %d\r\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();
// remove any non text characters (just for sure)
for(int i=0; i<propjson.length(); i++) {
// Serial.print(propjson.charAt(i), DEC); Serial.print(" = "); Serial.println(propjson.charAt(i));
if(propjson.charAt(i)<32 /* || propjson.charAt(i)=='\\' */) {
propjson.setCharAt(i, 32);
}
}
// propjson.replace("\\n"," ");
// invalid Unicode character defined by Ascensia Diabetes Care Bluetooth Glucose Meter
// ArduinoJSON does not accept any unicode surrogate pairs like \u0032 or \u0000
propjson.replace("\\u0000"," ");
propjson.replace("\\u0032"," ");
DeserializationError propJSONerr = deserializeJson(JSONdoc, propjson);
if(propJSONerr) {
err=1003; // "JSON2 parsing failed"
Serial.println("JSON 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 = ns->delta_mgdl/18.0;
if(cfg.show_mgdl) {
sprintf(ns->delta_display, "%+d", ns->delta_mgdl);
} else {
sprintf(ns->delta_display, "%+.1f", ns->delta_scaled);
}
// Serial.println("DELTA OK");
JsonObject loop_obj;
JsonObject loop_display;
if(cfg.info_line==3) {
loop_obj = JSONdoc["openaps"];
loop_display = loop_obj["status"];
} else {
loop_obj = JSONdoc["loop"];
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");
}
} else {
addErrorLog(httpCode);
err=httpCode;
}
} else {
addErrorLog(httpCode);
err=httpCode;
}
http.end();
} else {
// WiFi not connected
ESP.restart();
}
M5.Lcd.fillRect(icon_xpos[0], icon_ypos[0], 16, 16, BLACK);
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);