/** =========================================================================
* RGBsensorAutoMode.ino
* Example of using the Atlas Scientific RGB sensor modified from
* code provided by Atlas Scientific:
* https://atlas-scientific.com/probes/ezo-rgb-embedded-color-sensor/
*
* author: Scott Ensign <ensign@stroudcenter.org>
* Build Environment: Arduino IDE
* Hardware Platform: EnviroDIY Mayfly Arduino Datalogger V0.5
*
* DISCLAIMER:
* THIS CODE IS PROVIDED "AS IS" - NO WARRANTY IS GIVEN.
*
* The wiring from the RGB sensor was spliced to a Grove cable as follows:
* black wire from RGB sensor to black Grove wire to grd on Mayfly Grove connection
* red wire from RGB sensor to red Grove wire to V on Mayfly Grove connection
* white wire from RGB sensor to white Grove wire to D6 on Mayfly Grove connection
* green wire from RGB sensor to yellow Grove wire to D5 on Mayfly Grove connection
* ======================================================================= */
//#include <SoftwareSerial.h> //include the SoftwareSerial library
#include <AltSoftSerial.h> //this is the alternative to SoftwareSerial
#define rx 5 //define Mayfly pin 5 as the receive pin
#define tx 6 //define Mayfly pin 6 as the transmit pin
//SoftwareSerial RGBserial(rx, tx); //define how the software serial port is going to work
AltSoftSerial RGBserial(rx, tx); //this is the alternative to SoftwareSerial
void setup() { //set up the hardware
Serial.begin(9600); //set baud rate for the hardware serial port_0 to 9600
RGBserial.begin(9600); //set baud rate for the software serial port to 9600
pinMode(22, OUTPUT); //On the Mayfly Data Logger, pin 22 supplies power to the Grove ports
digitalWrite(22, LOW);
}
void loop() { //
digitalWrite(22, HIGH); //turn on power to the Mayfly's Grove ports
delay(500); //wait 500 milliseconds
RGBserial.readStringUntil("\r"); //holds for 1 second; this and the subsequent two commands remove the introductory returns from the RGB sensor
RGBserial.readStringUntil("\r"); //holds for 1 second
RGBserial.readStringUntil("\r"); //holds for 1 second
RGBserial.print('R'); //send that string to the Atlas Scientific product
RGBserial.print('\r'); //add a <CR> to the end of the string
delay(500); //wait 500 milliseconds
int red = RGBserial.parseInt(); //myserial.parseFloat is an alternative, but unnecessary here
int green = RGBserial.parseInt();
int blue = RGBserial.parseInt();
int lux = RGBserial.parseInt();
while (RGBserial.available() > 0) { // this gets ride of the "*OK" or anything else trailing at the end
RGBserial.read();
}
Serial.print("Red: "); // print "Red: " to the serial monitor
Serial.println(red); // print the red value from the sensor
Serial.print("Green: "); // ...
Serial.println(green);
Serial.print("Blue: ");
Serial.println(blue);
Serial.print("Lux: ");
Serial.println(lux);
delay(1000); // wait ___ milliseconds; adjust this value to set the sampling interval for the sensor
}
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