I’ve been testing an Electron outside running on a 3w solar panel for many months now.
What I found is the same as you, eventually, something would happen that would cause the Electron to stop sending data even though it looked as if everything is fine which would require 1 or 2 resets to get it back to normal operation.
I’m using only Particle SIM’s. I’m sending data to Ubidots instead of the Particle Cloud because it databased the data and give me the ability to create a dashboard for the info and send text and email alerts.
I eventually added the WatchDog code to reset the Electron if it ever did freeze up.
With the latest code below I was able to keep it online the longest and so far no resets have been required.
I’ll post the code I’ve ended up with below for to look over if you desire.
SYSTEM_MODE(SEMI_AUTOMATIC);
//SYSTEM_THREAD(ENABLED);
// This #include statement was automatically added by the Particle IDE.
#include "Ubidots/Ubidots.h"
#define TOKEN "YourTokenGoesHere" // Put here your Ubidots TOKEN
#define DATA_SOURCE_NAME "ElectronSleepNew"
SerialLogHandler logHandler(LOG_LEVEL_ALL); //This serial prints system process via USB incase you need to debug any problems you may be having with the system.
Ubidots ubidots(TOKEN); // A data source with particle name will be created in your Ubidots account.
//
int button = D0; // Connect a Button to Pin D0 to Wake the Electron when in System Sleep mode.
int ledPin = D7; // LED connected to D1
int sleepInterval = 60; // This is used below for sleep times and is equal to 60 seconds of time.
ApplicationWatchdog wd(660000, System.reset); //This Watchdog code will reset the processor if the dog is not kicked every 11 mins which gives time for 2 modem reset's.
void setup() {
//Serial.begin(115200);
pinMode(button, INPUT_PULLDOWN); // Sets pin as input
pinMode(ledPin, OUTPUT); // Sets pin as output
ubidots.setDatasourceName(DATA_SOURCE_NAME); //This name will automatically show up in Ubidots the first time you post data.
PMIC pmic; //Initalize the PMIC class so you can call the Power Management functions below.
pmic.setChargeCurrent(0,0,1,0,0,0); //Set charging current to 1024mA (512 + 512 offset)
pmic.setInputVoltageLimit(4840); //Set the lowest input voltage to 4.84 volts. This keeps my 5v solar panel from operating below 4.84 volts.
}
void loop() {
FuelGauge fuel; // Initalize the Fuel Gauge so we can call the fuel gauge functions below.
if(fuel.getSoC() > 20) // If the battery SOC is above 20% then we will turn on the modem and then send the sensor data.
{
float value1 = fuel.getVCell();
float value2 = fuel.getSoC();
ubidots.add("Volts", value1); // Change for your variable name
ubidots.add("SOC", value2);
Cellular.connect(); // This command turns on the Cellular Modem and tells it to connect to the cellular network.
if (!waitFor(Cellular.ready, 600000)) { //If the cellular modem does not successfuly connect to the cellular network in 10 mins then go back to sleep via the sleep command below. After 5 mins of not successfuly connecting the modem will reset.
System.sleep(D0, RISING,sleepInterval * 2, SLEEP_NETWORK_STANDBY); //Put the Electron into Sleep Mode for 2 Mins + leave the Modem in Sleep Standby mode so when you wake up the modem is ready to send data vs a full reconnection process.
}
ubidots.sendAll(); // Send fuel gauge data to your Ubidots account.
digitalWrite(ledPin, HIGH); // Sets the LED on
delay(250); // waits for a second
digitalWrite(ledPin, LOW); // Sets the LED off
delay(250); // waits for a second
digitalWrite(ledPin, HIGH); // Sets the LED on
delay(250); // waits for a second
digitalWrite(ledPin, LOW); // Sets the LED off
System.sleep(D0, RISING,sleepInterval * 2, SLEEP_NETWORK_STANDBY); //Put the Electron into Sleep Mode for 2 Mins + leave the Modem in Sleep Standby mode so when you wake up the modem is ready to send data vs a full reconnection process.
}
else //If the battery SOC is below 20% then we will flash the LED 4 times so we know. Then put the device into deep sleep for 1 hour and check SOC again.
{
//The 6 lines of code below are needed to turn off the Modem before sleeping if your using SYSTEM_THREAD(ENABLED); with the current 0.6.0 firmware. It's a AT Command problem currently.
//Cellular.on();
//delay(10000);
//Cellular.command("AT+CPWROFF\r\n");
//delay(2000);
//FuelGauge().sleep();
//delay(2000);
digitalWrite(ledPin, HIGH); // Sets the LED on
delay(150); // Waits for a second
digitalWrite(ledPin, LOW); // Sets the LED off
delay(150); // Waits for a second
digitalWrite(ledPin, HIGH); // Sets the LED on
delay(150); // Waits for a second
digitalWrite(ledPin, LOW); // Sets the LED off
delay(150); // Waits for a second
digitalWrite(ledPin, HIGH); // Sets the LED on
delay(150); // Waits for a second
digitalWrite(ledPin, LOW); // Sets the LED off
delay(150); // Waits for a second
digitalWrite(ledPin, HIGH); // Sets the LED on
delay(150); // Waits for a second
digitalWrite(ledPin, LOW); // Sets the LED off
System.sleep(SLEEP_MODE_DEEP, 3600); //Put the Electron into Deep Sleep for 1 Hour.
}
}