Converting Analogue input to real value

Projects Programming
8

MarkT:
For simple scaling map() is unnecessary:

  Serial.println(analogRead(0) * 14.0 / 1024, 1);

Thanks for that...seems a lot easier to understand the simpler way (well sort of)

void setup() {
Serial.begin(9600);
}

void loop() {
int val = analogRead(0);
Serial.println(analogRead(0) * 14.0 / 1024, 1);

can you explain what the 1 means at the end in

Serial.println(analogRead(0) * 14.0 / 1024, 1);

please

I intend eventually connecting a gsm module to this so upon sending the text message "PH" I am hoping it will reply with something like "PH = #.#"

How hard would you say this is to do? As I can see it in serial monitor I am asuming you point the GSM modem to a specific location and the modem translates the command to read from that location or similar?

Thanks