Hysteresis aware method for calculating non-dim switch state

protocol/esta/analog/receiver.h

@@ -56,6 +56,20 @@ struct Receiver
     else
       return (mV - zero) / (full - zero);
   }
+
+  /**
+   * @brief Determine the state of a non-dim switch.
+   * @param mV
+   * @param cur If incorporating hysteresis, the current state of the switch.
+   * @return
+   */
+  bool state(const int16_t mV, const bool cur = false) const
+  {
+    uint8_t l = level(mV);
+    if (cur)
+      return !(l < 102);  // ~40%
+    return l > 153;       // ~60%
+  }
 };
 
 } // namespace ANALOG