now i wold like to send a variable such as the reading i may get from a light sensor or temp sensor, is this possible?
or should i just monitor the light/temp sensor and when it hits a certain value, then trigger a generic email stating the info? i would personally like live 'real' monitoring but if it is not possible, then a triggered email would be acceptable.
you can send anything you want in an email, the real issue here is what is the trigger that will send the email, notification temperatures would work, as would a send an email every hour.
/* Read voltage divider
* Reads the voltage divider to calculate a battery voltage
* This software has no warranty, real or implied and is free to distribute and modify
*/
int batMonPin = 0; // input pin for the divider
int val = 0; // variable for the A/D value
float pinVoltage = 0; // variable to hold the calculated voltage
float batteryVoltage = 0;
float ratio = 2.316; // Change this to match the MEASURED ration of the circuit
void setup() {
Serial.begin(9600); // open the serial port at 9600 baud
}
void loop() {
val = analogRead(batMonPin); // read the voltage on the divider
pinVoltage = val * 0.00488; // Calculate the voltage on the A/D pin
// A reading of 1 for the A/D = 0.0048mV
// if we multiply the A/D reading by 0.00488 then
// we get the voltage on the pin.
batteryVoltage = pinVoltage * ratio; // Use the ratio calculated for the voltage divider
// to calculate the battery voltage
Serial.print("Voltage: ");
Serial.println(batteryVoltage);
delay(1000); // Slow it down
}
when i hook up the circuit w/out the ethernet shield and turn off the battery, i get 0V, w/ the battery 5.0-5.02V which is exactly what my multimeter says. when i have the ethernet shield connected and change the multiplier to just 1 (which should be what A0 is seeing) i get 4.46V transmitted, but when i check the voltage divider circuit, i get 4.01V w/ the mm, so for some reason i am getting V from somewhere that i am not aware of...it is getting late so i will look over my connections tomorrow, maybe i am connecting something wrong...