So I removed the timer function and set Heartbeat = 60 now. This is the sketch but it is quite basic without timer function
#include <LowPower.h>
//#include <Blynk.h>
#define BLYNK_PRINT Serial
/* Fill-in your Template ID (only if using Blynk.Cloud) */
#define BLYNK_TEMPLATE_ID "TMPL_BOMm1f6"
#define BLYNK_DEVICE_NAME "NanoSim800"
#define BLYNK_AUTH_TOKEN "QN62Nm92_xxxxx"
// Select your modem:
#define TINY_GSM_MODEM_SIM800
//#define TINY_GSM_MODEM_SIM900
//#define TINY_GSM_MODEM_M590
//#define TINY_GSM_MODEM_A6
//#define TINY_GSM_MODEM_A7
//#define TINY_GSM_MODEM_BG96
//#define TINY_GSM_MODEM_XBEE
// Default heartbeat interval for GSM is 60
// If you want override this value, uncomment and set this option:
#define BLYNK_HEARTBEAT 60
#define BLYNK_DEBUG
#include <TinyGsmClient.h>
#include <BlynkSimpleTinyGSM.h>
// You should get Auth Token in the Blynk App.
// Go to the Project Settings (nut icon).
char auth[] = "QN62Nxxxxxxxxxxx";
// Your GPRS credentials
// Leave empty, if missing user or pass
char apn[] = "connect";
char user[] = "";
char pass[] = "";
unsigned long onTime;
char timestr[18];
bool valveON;
// Hardware Serial on Mega, Leonardo, Micro
//#define SerialAT Serial1
// or Software Serial on Uno, Nano
#include <SoftwareSerial.h>
SoftwareSerial SerialAT(2, 3); // RX, TX
TinyGsm modem(SerialAT);
BlynkTimer timer;
void setup()
{
// Debug console
Serial.begin(9600);
delay(10);
pinMode(13,OUTPUT);
// Set GSM module baud rate
SerialAT.begin(19200);
delay(3000);
// Restart takes quite some time
// To skip it, call init() instead of restart()
Serial.println("Initializing modem...");
modem.restart();
Serial.println("Initialised modem...");
// Unlock your SIM card with a PIN
//modem.simUnlock("1234");
Blynk.begin(auth, modem, apn, user, pass);
//timer.setInterval(5000L, myTimerEvent);
}
void stime(long val){
long day = 86400000; // 86400000 milliseconds in a day
long hour = 3600000; // 3600000 milliseconds in an hour
long minute = 60000; // 60000 milliseconds in a minute
long second = 1000; // 1000 milliseconds in a second
int days = val / day ; //number of days
int hours = (val % day) / hour; //the remainder from days division (in milliseconds) divided by hours, this gives the full hours
int minutes = ((val % day) % hour) / minute ; //and so on...
int seconds = (((val % day) % hour) % minute) / second;
sprintf(timestr, "%03dd/%02dh:%02dm:%02ds",days, hours, minutes, seconds);
}
void myTimerEvent()
{
unsigned long valveONTime;
if (valveON) valveONTime = millis()-onTime; else valveONTime = 0;
// You can send any value at any time.
// Please don't send more that 10 values per second.
stime(millis());
//Serial.println(timestr);
Blynk.virtualWrite(V4, timestr);
stime(valveONTime);
//Serial.println(timestr);
char *p = ×tr[5]; // remove days
Blynk.virtualWrite(V5, p);
//delay(500);
}
// Every time we connect to the cloud...
BLYNK_CONNECTED() {
// Request the latest state from the server
Blynk.syncVirtual(V1);
//Blynk.syncAll();
// Alternatively, you could override server state using:
//Blynk.virtualWrite(V2, ledState);
}
BLYNK_WRITE(V1)
{
int pinValue = param.asInt(); // assigning incoming value from pin V1 to a variable
if (pinValue == 1){
Blynk.virtualWrite(V3, 1);
digitalWrite(13,HIGH);
valveON = true;
onTime = millis();
Blynk.logEvent("valveon");
} else{
Blynk.virtualWrite(V3, 0);
digitalWrite(13,LOW);
valveON = false;
onTime = 0;
Blynk.logEvent("valveoff");
}
// process received value
}
void loop()
{
Blynk.run();
timer.run(); // Initiates BlynkTimer
//delay(2000);
}
This is the logging it produces
1:28:47.393 -> [25694] Connecting to blynk.cloud:80
1:28:55.612 -> [33916] <[1D|00|01|00] QN62Nm9xxxx
1:28:56.412 -> [34723] >[00|00|01|00|C8]
1:28:56.412 -> [34724] Ready (ping: 748ms).
1:28:56.457 -> [34724] Free RAM: 9731:28:56.492 -> [34740] >[14|00|01|00|09]
1:28:56.524 -> [34768] >pm[00]12[00]out
1:28:56.558 -> [34795] <[11|00|02|00|8D]ver[00]1.0.1[00]h-beat[00]60[00]buff-in[00]256[00]dev[00]
Arduino Nano[00]cpu[00]ATmega328P[00]con[00]SIM800[00]fw-type[00]TMPL_BOMm1f6[00]build[00]Apr 7 2022 0
1:28:06[00]tmpl[00]TMPL_BOMm1f6[00]
1:28:56.953 -> [35249] <[10|00|03|00|04]vr[00]1
1:28:58.637 -> [36954] >[00|00|02|00|C8]
1:28:58.683 -> [36997] >[14|00|03|00|06]
1:28:58.683 -> [36998] >vw[00]1[00]1
1:28:58.762 -> [37065] <[14|00|03|00|06]vw[00]3[00]1
1:28:58.794 -> [37110] <@[00|03|00|07]valveon
1:28:59.619 -> [37913] >[00|00|03|00|C8]
1:29:58.878 -> [97156] <[06|00|04|00|00]
1:30:00.251 -> [98538] >[00|00|04|00|C8]
1:30:58.937 -> [157199] <[06|00|05|00|00]
The HeartBeat packets are being sent every 60seconds as expected however I still get the same date on the serial port of Sim800 every 500ms. Here is the decoded serial data on the TX line from Arduino. It clearly shows the packets AT+CIPRXGET=4 0 and CIPSTATUS=0
Buffer Number Packet Start Time End Time Data Parity Parity Check Max Voltage Min Voltage Voltage Delta Packet Time
9 1 -0.50087698 -0.500356147 A
9 2 -0.50034798 -0.499827147 T
9 3 -0.49980898 -0.499288147 +
9 4 -0.49927998 -0.498759147 C
9 5 -0.49874498 -0.498224147 I
9 6 -0.49821598 -0.497695147 P
9 7 -0.49768098 -0.497160147 R
9 8 -0.49715198 -0.496631147 X
9 9 -0.49661698 -0.496096147 G
9 10 -0.49608798 -0.495567147 E
9 11 -0.49555298 -0.495032147 T
9 12 -0.49502398 -0.494503147 =
9 13 -0.49448898 -0.493968147 4
9 14 -0.49395998 -0.493439147
9 15 -0.49337898 -0.492858147 0
9 16 -0.49284098 -0.492320147 CR
9 17 -0.49230598 -0.491785147 LF
9 18 -0.46974898 -0.469228147 A
9 19 -0.46921398 -0.468693147 T
9 20 -0.46868198 -0.468161147 +
9 21 -0.46814698 -0.467626147 C
9 22 -0.46761798 -0.467097147 I
9 23 -0.46708298 -0.466562147 P
9 24 -0.46655398 -0.466033147 S
9 25 -0.46601898 -0.465498147 T
9 26 -0.46548998 -0.464969147 A
9 27 -0.46495398 -0.464433147 T
9 28 -0.46442498 -0.463904147 U
9 29 -0.46389098 -0.463370147 S
9 30 -0.46336198 -0.462841147 =
9 31 -0.46278098 -0.462260147 0
9 32 -0.46224298 -0.461722147 CR
9 33 -0.46170798 -0.461187147 LF
9 34 -2.50E-05 0.000495852 A
9 35 0.000504018 0.001024852 T
9 36 0.001043018 0.001563852 +
9 37 0.001571018 0.002091852 C
9 38 0.002107018 0.002627852 I
9 39 0.002636018 0.003156852 P
9 40 0.003171018 0.003691852 R
9 41 0.003700018 0.004220852 X
9 42 0.004235018 0.004755852 G
9 43 0.004764018 0.005284852 E
9 44 0.005299018 0.005819852 T
9 45 0.005828018 0.006348852 =
9 46 0.006363018 0.006883852 4
9 47 0.006892018 0.007412852
9 48 0.007473018 0.007993852 0
9 49 0.008011018 0.008531852 CR
9 50 0.008546018 0.009066852 LF
9 51 0.030908018 0.031428852 A
9 52 0.031437018 0.031957852 T
9 53 0.031975018 0.032495852 +
9 54 0.032504018 0.033024852 C
9 55 0.033039018 0.033559852 I
9 56 0.033568018 0.034088852 P
9 57 0.034104018 0.034624852 S
9 58 0.034633018 0.035153852 T
9 59 0.035168018 0.035688852 A
9 60 0.035697018 0.036217852 T
9 61 0.036232018 0.036752852 U
9 62 0.036761018 0.037281852 S
9 63 0.037296018 0.037816852 =
9 64 0.037877018 0.038397852 0
9 65 0.038414018 0.038934852 CR
9 66 0.038949018 0.039469852 LF
9 67 0.500898017 0.501418851 A
9 68 0.501427017 0.501947851 T
9 69 0.501965017 0.50248585 +
9 70 0.502494017 0.50301485 C
9 71 0.503029017 0.50354985 I
9 72 0.503558017 0.50407885 P
9 73 0.504093017 0.50461385 R
9 74 0.504622017 0.50514285 X
9 75 0.505158017 0.50567885 G
9 76 0.505686017 0.50620685 E
9 77 0.506222017 0.50674285 T
9 78 0.506751017 0.50727185 =
9 79 0.507285017 0.50780585 4
9 80 0.507814017 0.50833485
9 81 0.508396017 0.50891685 0
9 82 0.508933017 0.50945385 CR
9 83 0.509468017 0.50998885 LF
9 84 0.531945017 0.53246585 A
9 85 0.532474017 0.53299485 T
9 86 0.533012017 0.53353285 +
9 87 0.533541017 0.53406185 C
9 88 0.534076017 0.53459685 I
9 89 0.534611017 0.53513185 P
9 90 0.535140017 0.53566085 S
9 91 0.535675017 0.53619585 T
9 92 0.536204017 0.53672485 A
9 93 0.536740017 0.53726085 T
9 94 0.537269017 0.53778985 U
9 95 0.537803017 0.53832385 S
9 96 0.538332017 0.53885285 =
9 97 0.538914017 0.53943485 0
9 98 0.539451017 0.53997185 CR
9 99 0.539986017 0.54050685 LF
9 100 1.002789016 1.003309849 A
9 101 1.003318016 1.003838849 T
9 102 1.003856016 1.004376849 +
9 103 1.004385016 1.004905849 C
9 104 1.004920016 1.005440849 I
9 105 1.005449016 1.005969849 P
9 106 1.005984016 1.006504849 R
9 107 1.006513016 1.007033849 X
9 108 1.007049016 1.007569849 G
9 109 1.007577016 1.008097849 E
9 110 1.008113016 1.008633849 T
9 111 1.008642016 1.009162849 =
9 112 1.009177016 1.009697849 4
9 113 1.009706016 1.010226849
9 114 1.010287016 1.010807849 0
9 115 1.010825016 1.011345849 CR
9 116 1.011360016 1.011880849 LF
9 117 1.033756016 1.034276849 A
9 118 1.034285016 1.034805849 T
9 119 1.034823016 1.035343849 +
9 120 1.035352016 1.035872849 C
9 121 1.035887016 1.036407849 I
9 122 1.036416016 1.036936849 P
9 123 1.036952016 1.037472849 S
9 124 1.037480016 1.038000849 T
9 125 1.038015016 1.038535849 A
9 126 1.038545016 1.039065849 T
9 127 1.039080016 1.039600849 U
9 128 1.039615016 1.040135849 S
9 129 1.040144016 1.040664849 =
9 130 1.040725016 1.041245849 0
9 131 1.041262016 1.041782849 CR
9 132 1.041797016 1.042317849 LF
