 uint16_t readSolarVolts() {
   // Voltage divider to reduce the maximum to 2V.
   // 8V -> 2V
-  // Solar Panel --- 300K --- | --- 100K --- GND
+  // Solar panel --- 300K --- | --- 100K --- GND
   int16_t val = ads.readADC_SingleEnded(2);
   // Calibration:
   // 1000mV = 268, 2000mV = 537, 3000mV = 805... 

  rf95.setModemConfig(RH_RF95::Bw500Cr45Sf128);
  rf95.setTxPower(10, false);

  ads.begin();
}



#define RF95_FREQ 868.0

#define PIN_SENSOR_GND 8
#define PIN_SENSOR_VCC 7
#define PIN_SENSOR_SOIL A2


