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M5_NightscoutMon.ino
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M5_NightscoutMon.ino
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/* M5Stack Nightscout monitor
Copyright (C) 2018-2021 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)
Ben West (AP WiFi configuration)
*/
// Official M5Stack Arduino board definitions are required, please add board from following location:
// https://m5stack.oss-cn-shenzhen.aliyuncs.com/resource/arduino/package_m5stack_index.json
//
// Only following boards are supported in this code:
// M5Stack Arduino / M5Stack-Core-ESP32
// M5Stack Arduino / M5Stack-Core2
#include <Arduino.h>
#ifdef ARDUINO_M5STACK_Core2
#include <M5Core2.h>
#include <driver/i2s.h>
#else
#include <M5Stack.h>
#endif
#include <Preferences.h>
#include <WiFi.h>
#include <WiFiMulti.h>
#include <WiFiUdp.h>
#include <WebServer.h>
#include <ESPmDNS.h>
#include <DNSServer.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 "soc/rtc_io_reg.h"
#include <Adafruit_NeoPixel.h>
Adafruit_NeoPixel pixels(10, 15, NEO_GRB + NEO_KHZ800);
#include "Free_Fonts.h"
#include "IniFile.h"
#include "M5NSconfig.h"
#include "M5NSWebConfig.h"
#include <Wire.h> //The DHT12 uses I2C comunication.
#include "DHT12.h"
DHT12 dht12;
#include "SHT3X.h"
SHT3X sht30;
#include "microdot.h"
MicroDot MD;
String M5NSversion("2022100201");
#ifdef ARDUINO_M5STACK_Core2
#define CONFIG_I2S_BCK_PIN 12
#define CONFIG_I2S_LRCK_PIN 0
#define CONFIG_I2S_DATA_PIN 2
#define CONFIG_I2S_DATA_IN_PIN 34
#define Speak_I2S_NUMBER I2S_NUM_0
#define MODE_SPK 1
#endif
#define VIBfreq 10000
#define VIBchannel 14
#define VIBresolution 10
// 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;
// Starfield Services Root Certificate Authority - G2
// Valid till Dec 31 23:59:59 2037 GMT
const char* rootCACertificate = \
"-----BEGIN CERTIFICATE-----\n" \
"MIID7zCCAtegAwIBAgIBADANBgkqhkiG9w0BAQsFADCBmDELMAkGA1UEBhMCVVMx" \
"EDAOBgNVBAgTB0FyaXpvbmExEzARBgNVBAcTClNjb3R0c2RhbGUxJTAjBgNVBAoT" \
"HFN0YXJmaWVsZCBUZWNobm9sb2dpZXMsIEluYy4xOzA5BgNVBAMTMlN0YXJmaWVs" \
"ZCBTZXJ2aWNlcyBSb290IENlcnRpZmljYXRlIEF1dGhvcml0eSAtIEcyMB4XDTA5" \
"MDkwMTAwMDAwMFoXDTM3MTIzMTIzNTk1OVowgZgxCzAJBgNVBAYTAlVTMRAwDgYD" \
"VQQIEwdBcml6b25hMRMwEQYDVQQHEwpTY290dHNkYWxlMSUwIwYDVQQKExxTdGFy" \
"ZmllbGQgVGVjaG5vbG9naWVzLCBJbmMuMTswOQYDVQQDEzJTdGFyZmllbGQgU2Vy" \
"dmljZXMgUm9vdCBDZXJ0aWZpY2F0ZSBBdXRob3JpdHkgLSBHMjCCASIwDQYJKoZI" \
"hvcNAQEBBQADggEPADCCAQoCggEBANUMOsQq+U7i9b4Zl1+OiFOxHz/Lz58gE20p" \
"OsgPfTz3a3Y4Y9k2YKibXlwAgLIvWX/2h/klQ4bnaRtSmpDhcePYLQ1Ob/bISdm2" \
"8xpWriu2dBTrz/sm4xq6HZYuajtYlIlHVv8loJNwU4PahHQUw2eeBGg6345AWh1K" \
"Ts9DkTvnVtYAcMtS7nt9rjrnvDH5RfbCYM8TWQIrgMw0R9+53pBlbQLPLJGmpufe" \
"hRhJfGZOozptqbXuNC66DQO4M99H67FrjSXZm86B0UVGMpZwh94CDklDhbZsc7tk" \
"6mFBrMnUVN+HL8cisibMn1lUaJ/8viovxFUcdUBgF4UCVTmLfwUCAwEAAaNCMEAw" \
"DwYDVR0TAQH/BAUwAwEB/zAOBgNVHQ8BAf8EBAMCAQYwHQYDVR0OBBYEFJxfAN+q" \
"AdcwKziIorhtSpzyEZGDMA0GCSqGSIb3DQEBCwUAA4IBAQBLNqaEd2ndOxmfZyMI" \
"bw5hyf2E3F/YNoHN2BtBLZ9g3ccaaNnRbobhiCPPE95Dz+I0swSdHynVv/heyNXB" \
"ve6SbzJ08pGCL72CQnqtKrcgfU28elUSwhXqvfdqlS5sdJ/PHLTyxQGjhdByPq1z" \
"qwubdQxtRbeOlKyWN7Wg0I8VRw7j6IPdj/3vQQF3zCepYoUz8jcI73HPdwbeyBkd" \
"iEDPfUYd/x7H4c7/I9vG+o1VTqkC50cRRj70/b17KSa7qWFiNyi2LSr2EIZkyXCn" \
"0q23KXB56jzaYyWf/Wi3MOxw+3WKt21gZ7IeyLnp2KhvAotnDU0mV3HaIPzBSlCN" \
"sSi6" \
"-----END CERTIFICATE-----\n";
WebServer w3srv(80);
const byte DNS_PORT = 53;
DNSServer dnsServer;
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 rcnt = 4;
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;
bool is_task_bootstrapping = 0;
#ifdef ARDUINO_M5STACK_Core2
static int16_t music_data[25000]; // 2s in sample rate 11025 samp/s
#else
static uint8_t music_data[25000]; // 5s in sample rate 5000 samp/s
#endif
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 lcdSetBrightness(uint8_t brightness) {
if( brightness>100 )
brightness = 100;
#ifdef ARDUINO_M5STACK_Core2
M5.Axp.SetLcdVoltage(2500+brightness*8);
#else
M5.Lcd.setBrightness(brightness);
#endif
}
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;
lcdSetBrightness(0);
if(!SD.exists(cfg.bootPic)) {
// M5.Lcd.pushImage(0, 0, 320, 240, (uint16_t *)gImage_logoM5);
M5.Lcd.clear();
M5.Lcd.setTextColor(TFT_WHITE, TFT_BLACK);
M5.Lcd.drawString("M5 Stack", 120, 60, GFXFF);
M5.Lcd.drawString("Nightscout monitor", 60, 80, GFXFF);
M5.Lcd.drawString("(c) 2019-21 Martin Lukasek", 0, 120, GFXFF);
} else {
M5.Lcd.drawJpgFile(SD, cfg.bootPic);
}
lcdSetBrightness(100);
#ifndef ARDUINO_M5STACK_Core2 // no .update() on M5Stack CORE2
M5.update();
#endif
}
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");
}
#ifdef ARDUINO_M5STACK_Core2
// audio functions for Core2
bool InitI2SSpeakOrMic(int mode)
{
esp_err_t err = ESP_OK;
i2s_driver_uninstall(Speak_I2S_NUMBER);
i2s_config_t i2s_config = {
.mode = (i2s_mode_t)(I2S_MODE_MASTER),
.sample_rate = 11025,
.bits_per_sample = I2S_BITS_PER_SAMPLE_16BIT, // is fixed at 12bit, stereo, MSB
.channel_format = I2S_CHANNEL_FMT_ONLY_RIGHT,
.communication_format = I2S_COMM_FORMAT_I2S,
.intr_alloc_flags = ESP_INTR_FLAG_LEVEL1,
.dma_buf_count = 2,
.dma_buf_len = 128,
};
i2s_config.mode = (i2s_mode_t)(I2S_MODE_MASTER | I2S_MODE_TX);
i2s_config.use_apll = false;
i2s_config.tx_desc_auto_clear = true;
err += i2s_driver_install(Speak_I2S_NUMBER, &i2s_config, 0, NULL);
i2s_pin_config_t tx_pin_config;
tx_pin_config.bck_io_num = CONFIG_I2S_BCK_PIN;
tx_pin_config.ws_io_num = CONFIG_I2S_LRCK_PIN;
tx_pin_config.data_out_num = CONFIG_I2S_DATA_PIN;
tx_pin_config.data_in_num = CONFIG_I2S_DATA_IN_PIN;
err += i2s_set_pin(Speak_I2S_NUMBER, &tx_pin_config);
err += i2s_set_clk(Speak_I2S_NUMBER, 11025, I2S_BITS_PER_SAMPLE_16BIT, I2S_CHANNEL_MONO);
return true;
}
void play_tone(uint16_t frequency, uint32_t duration, uint8_t volume) {
size_t bytes_written = 0;
// Serial.print("start fill music data "); Serial.println(millis());
uint32_t data_length = duration * 11;
if( data_length > 22050 )
data_length = 22050;
float interval = 2*M_PI*float(frequency)/float(11025);
float volMul = volume/100.0;
for (uint32_t i=0;i<data_length;i++) {
music_data[i]=32767.0*sin(interval*i)*volMul; // 16383.0+ /(101-volume)
}
music_data[data_length-1]=32767;
// Serial.print("finish fill music data, start play "); Serial.println(millis());
i2s_write(Speak_I2S_NUMBER, music_data, data_length*2, &bytes_written, portMAX_DELAY);
// Serial.print("finish play "); Serial.println(millis());
}
#else // M5Stack BASIC audio functions
// this function is for original M5Stack only, as Core2 uses DMA to I2S
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);
} else {
// silence must make a delay for duration
delay(data_length/5);
}
}
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());
if(cfg.vibration_mode != 0) {
ledcSetup(VIBchannel, VIBfreq, VIBresolution);
ledcAttachPin(cfg.vibration_pin, VIBchannel);
delay(10);
ledcWrite(VIBchannel, cfg.vibration_strength);
}
play_music_data(data_length, volume);
if(cfg.vibration_mode != 0) {
ledcSetup(VIBchannel, VIBfreq, VIBresolution);
ledcAttachPin(cfg.vibration_pin, VIBchannel);
delay(10);
if(duration<180) // minimum vibration lenght is 200 ms
delay(180-duration);
ledcWrite(VIBchannel, 0);
}
}
#endif
void sndAlarm() {
for(int j=0; j<6; j++) {
if(cfg.LED_strip_mode != 0) {
int maxint = 255;
maxint *= cfg.LED_strip_brightness;
maxint /= 100;
pixels.fill(pixels.Color(maxint, 0, 0));
pixels.show();
}
if( cfg.dev_mode )
play_tone(660, 400, 1);
else
play_tone(660, 400, cfg.alarm_volume);
if(cfg.LED_strip_mode != 0) {
pixels.clear();
pixels.show();
}
delay(200);
}
}
void sndWarning() {
for(int j=0; j<3; j++) {
if(cfg.LED_strip_mode != 0) {
int maxint = 255;
maxint *= cfg.LED_strip_brightness;
maxint /= 100;
int lessint = 192;
lessint *= cfg.LED_strip_brightness;
lessint /= 100;
pixels.fill(pixels.Color(maxint, lessint, 0));
pixels.show();
}
if( cfg.dev_mode )
play_tone(3000, 100, 1);
else
play_tone(3000, 100, cfg.warning_volume);
if(cfg.LED_strip_mode != 0) {
pixels.clear();
pixels.show();
}
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 waitBtnRelease() {
#ifdef ARDUINO_M5STACK_Core2
// wait release
TouchPoint_t pos;
pos = M5.Touch.getPressPoint();
while((pos.x != -1) || (pos.y != -1)) {
pos = M5.Touch.getPressPoint();
delay(20);
}
#endif
}
void buttons_test() {
bool btnA_wasPressed = false;
bool btnB_wasPressed = false;
bool btnC_wasPressed = false;
#ifdef ARDUINO_M5STACK_Core2
TouchPoint_t pos;
pos = M5.Touch.getPressPoint();
// Serial.printf("Touch point: %d : %d\r\n", pos.x, pos.y);
btnA_wasPressed = (pos.x >= 0) && (pos.x < 109) && (pos.y > 210); // 240 is bellow display, but we have displayed icons on the last line
btnB_wasPressed = (pos.x >= 109) && (pos.x <= 218) && (pos.y > 210);
btnC_wasPressed = (pos.x > 218) && (pos.y > 210);
#else
btnA_wasPressed = M5.BtnA.wasPressed();
btnB_wasPressed = M5.BtnB.wasPressed();
btnC_wasPressed = M5.BtnC.wasPressed();
#endif
if(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;
lcdSetBrightness(lcdBrightness);
#ifdef ARDUINO_M5STACK_Core2
waitBtnRelease();
#else
M5.update();
#endif
// 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(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);
if(cfg.LED_strip_mode==2) {
pixels.clear();
pixels.show();
}
}
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();
#ifdef ARDUINO_M5STACK_Core2
waitBtnRelease();
#else
M5.update();
#endif
}
if(btnC_wasPressed) {
// M5.Lcd.printf("C");
Serial.printf("C");
int longPress = 0;
#ifndef ARDUINO_M5STACK_Core2 // long press check only on real buttons, ARDUINO_M5STACK_Core2 has its own power button with long press to power off
unsigned long btnCPressTime = millis();
long pwrOffTimeout = 4000;
int lastDispTime = pwrOffTimeout/1000;
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();
}
#ifndef ARDUINO_M5STACK_Core2 // no .update() on M5Stack CORE2
M5.update();
#endif
}
#endif
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); */
#ifdef ARDUINO_M5STACK_Core2
waitBtnRelease();
#else
M5.update();
#endif
}
}
const char * CONSONANTS = "bcdfghjklmnpqrstvwxyz";
const char * VOWELS = "aeiouy";
int passLen = 8;
void generate_ssid_passphrase (char * buffer) {
char passphrase[passLen+1];
int max_consonants;
int max_vowels;
max_consonants = strlen(CONSONANTS);
max_vowels = strlen(VOWELS);
randomSeed(analogRead(0));
passphrase[0] = CONSONANTS[random(0, max_consonants)];
passphrase[1] = VOWELS[random(0, max_vowels)];
passphrase[2] = VOWELS[random(0, max_vowels)];
passphrase[3] = CONSONANTS[random(0, max_consonants)];
passphrase[4] = VOWELS[random(0, max_vowels)];
passphrase[5] = VOWELS[random(0, max_vowels)];
passphrase[6] = CONSONANTS[random(0, max_consonants)];
passphrase[7] = VOWELS[random(0, max_vowels)];
passphrase[8] = VOWELS[random(0, max_vowels)];
passphrase[9] = '\0';
strcpy(buffer, passphrase);
}
void wifi_connect() {
char ssid_passphrase[80];
if (is_task_bootstrapping) {
// offer access point to join for configuration purposes
WiFi.enableAP(true);
WiFi.mode(WIFI_AP);
IPAddress ip(192, 168, 0, 1);
IPAddress gateway(192, 168, 0, 1);
IPAddress subnet(255, 255, 255, 0);
Serial.print("Setting soft-AP configuration ... ");
Serial.println(WiFi.softAPConfig(ip, gateway, subnet) ? "Ready" : "Failed!");
// set random password
generate_ssid_passphrase(ssid_passphrase);
Serial.print("Setting soft-AP ... ");
Serial.println(WiFi.softAP(cfg.deviceName, ssid_passphrase) ? "Ready" : "Failed!");
delay(250);
Serial.print("Soft-AP IP address = ");
Serial.println(WiFi.softAPIP());
// WiFi.begin( );
dnsServer.setTTL(300);
dnsServer.setErrorReplyCode(DNSReplyCode::ServerFailure);
dnsServer.start(DNS_PORT, "*", ip);
} else {
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 ");
if (is_task_bootstrapping) {
Serial.println(cfg.deviceName);
M5.Lcd.print("WiFi SSID: "); M5.Lcd.println(cfg.deviceName);
Serial.print("SSID Passphrase: "); Serial.println(ssid_passphrase);
M5.Lcd.print("SSID Passphrase: "); M5.Lcd.println(ssid_passphrase);
M5.Lcd.println();
M5.Lcd.print("Join WiFi & Visit URL:\nhttp://");
M5.Lcd.print(cfg.deviceName);
M5.Lcd.print(".local\n");
M5.Lcd.print("IP address: ");
M5.Lcd.println(WiFi.softAPIP());
} else {
Serial.println(WiFi.SSID());
M5.Lcd.print("WiFi SSID: "); M5.Lcd.println(WiFi.SSID());
Serial.print("IP address: ");
M5.Lcd.print("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()
{
#ifdef ARDUINO_M5STACK_Core2
float dta;
int8_t batLev = 0;
dta = M5.Axp.GetBatVoltage();
if(dta>4.1)
batLev = 100;
else
if(dta>3.9)
batLev = 75;
else
if(dta>3.75)
batLev = 50;
else
if(dta>3.6)
batLev = 25;
Serial.printf("Battery %4.2f V = %d%%\r\n", dta, batLev);
return batLev;
#else
int8_t bl = M5.Power.getBatteryLevel();
/*
// 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));
}
*/
return bl;
#endif
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;
WiFiClientSecure sclient;
sclient.setCACert(rootCACertificate);
char NSurl[128];
int err=0;
char tmpstr[64];
bool is_https_Heroku = false;
// http.setReuse(false);
// if(client) {
// sclient.setCACert(rootCACertificate);
// Serial.println("Client OK, setCACert OK");
//}
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(strlen(NSurl)>0) {
if(NSurl[strlen(NSurl)-1]=='/') {
NSurl[strlen(NSurl)-1]=0;
}
}
if(strstr(NSurl,"sugarmate") != NULL) // Sugarmate JSON URL for Dexcom follower
ns->is_Sugarmate = 1;
else
{
ns->is_Sugarmate = 0;
is_https_Heroku = (strstr(NSurl,"https://") != NULL) && (strstr(NSurl,"herokuapp.com") != NULL);
Serial.print("is_https_Heroku "); Serial.println(is_https_Heroku);
if(cfg.sgv_only) {
strcat(NSurl,"/api/v1/entries.json?find[type][$eq]=sgv&count=10");
} else {
strcat(NSurl,"/api/v1/entries.json?count=10");
}
if ((token!=NULL) && (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*)wifi2_icon16x16, TFT_BLUE);
Serial.print("JSON query NSurl = \'");Serial.print(NSurl);Serial.print("\'\r\n");
// http.begin(NSurl, "94:FC:F6:23:6C:37:D5:E7:92:78:3C:0B:5F:AD:0C:E4:9E:FD:9E:A8"); //HTTP
if( is_https_Heroku ) {
if(http.begin(sclient, NSurl)) {
Serial.println("http.begin HTTPS Heroku OK");
} else {
Serial.println("http.begin HTTPS Heroku FAILED");
}
} else {
if(http.begin(NSurl)) {
Serial.println("http.begin OK");
} else {
Serial.println("http.begin FAILED");
}
}
// http.connect();
// Serial.print("Connected "); Serial.println(http.connected()?"YES":"NO");
// http.setConnectTimeout(15000);
// http.setTimeout(15000);