updates from code review

Author: betsy

Diff for: README.md

@@ -23,7 +23,7 @@ The thermistor class takes three to five parameters (three required, two optiona
 | *pin* | Imp pin object capable of ANALOG_IN | Required |
 | *b_therm* | Thermistor ß parameter, from datasheet | Required |
 | *t0_therm* | Thermistor T0 parameter, from datasheet | Required |
-| *points* | number of readings to average when reading the thermistor | Optional, defaults to 10.0 |
+| *points* | number of readings to average when reading the thermistor | Optional, defaults to 10 |
 | *high_side_therm* | Set `false` to place thermistor on low side of divider | Optional, defaults to `true` |
 
 The ß and T0 parameters are all available on the thermistor datasheet:

Diff for: Thermistor.class.nut

@@ -14,7 +14,7 @@ class Thermistor {
 
     _highSide = null;
 
-    constructor(pin, b, t0, points = 10.0, highSide = true) {
+    constructor(pin, b, t0, points = 10, highSide = true) {
         _pin = pin;
         _pin.configure(ANALOG_IN);
 
@@ -36,7 +36,7 @@ class Thermistor {
     }
 
     // read thermistor in Kelvin
-    function readK(cb = null) {
+    function readK() {
         local vrat_raw = 0;
         for (local i = 0; i < _pointsPerRead; i++) {
             vrat_raw += _pin.read();