   Serial.print("S1 - TCS34725 ");
   Serial.println((s1 = tcs.begin()) ? "initialized" : "error");
   m.setFloat(S1_Available, (float) s1);
+  m.setFloat(S1_Calibration, 1.0);
 
   // Initialize S2
   Serial.print("S2 - BME280 ");


#define S1_Available            40009
#define S1_ScanTime             40011
#define S1_Lux                  40013
#define S1_CT                   40015
#define S1_IR                   40017
#define S1_AGAINX               40019
#define S1_ATIME_MS             40021
#define S1_ATIME                40023
#define S1_R_RAW                40025
#define S1_G_RAW                40027
#define S1_B_RAW                40029 
#define S1_C_RAW                40031
#define S1_R_COMP               40033
#define S1_G_COMP               40035
#define S1_B_COMP               40037
#define S1_C_COMP               40039

#define S2_Available            40041
#define S2_ScanTime             40043
#define S2_SeaLevelPressureHPA  40045  
#define S2_Temperature          40047
#define S2_Pressure             40049
#define S2_Altitude             40051
#define S2_Humidity             40053

bool s1, s2; // flags to indicate which sensors are available


#define BME_MOSI 11
#define BME_CS 10

#define SEALEVELPRESSURE_HPA (1027.8)

Adafruit_BME280 bme; // I2C

