RPi3: [pH (i2c-T3)] //[EC (i2c-T3)] //[Pt100] //[3chrelay (pump1, pump2, doser)]
USB: [USB cam]
Nano: BME280 (i2c pins A4,A5) //TSL2561 (i2c pins A4,A5) //SHT10 (pins 10,11) //2x flowsens (pins 2,3) //float sensor (pin 8)

Output format (with sampled readings):
Water level: LOW //NOTE: either says "LOW" or "GOOD/HIGH"
Pump 1: 0 L/h
Pump 2: 0 L/h
Ambient Light (TSL2561): 40.00 lux
Air Temperature (BME280): 22.55 *C
Air Pressure (BME280): 997.09 hPa
Altitude (BME280): 135.64 m
Relative Humidity (BME280): 38.36 %
Bed Temperature (SHT10): 23.1999969482 *C / 73.8319931030 *F
Bed Humidity (SHT10): 45.27 %