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Updated Example 12 to demonstrate negative temperatures 

Use SpanRange() to change HAP default range of 0-100 to -50 to 100.  Change starting temp +30 and have it reset to -30 after hitting +35.
This commit is contained in:
Gregg 2021-02-22 20:27:42 -06:00
parent b2790386d6
commit 3edc30222f
2 changed files with 6 additions and 5 deletions
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7
examples/12-ServiceLoops/DEV_Sensors.h
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@ -15,7 +15,8 @@ struct DEV_TempSensor : Service::TemperatureSensor { // A standalone Tempera
// Though the HAP documentation includes a Characteristic that appears to allow the device to over-ride this setting by specifying a display
// of Celsius or Fahrenheit for each Service, it does not appear to work as advertised.
temp=new Characteristic::CurrentTemperature(20.0); // instantiate the Current Temperature Characteristic
temp=new Characteristic::CurrentTemperature(30.0); // instantiate the Current Temperature Characteristic
new SpanRange(-50,100,1); // expand the range from the HAP default of 0-100 to -50 to 100 to allow for negative temperatures
Serial.print("Configuring Temperature Sensor"); // initialization message
Serial.print("\n");
@ -39,8 +40,8 @@ struct DEV_TempSensor : Service::TemperatureSensor { // A standalone Tempera
if(temp->timeVal()>5000){ // check time elapsed since last update and proceed only if greater than 5 seconds
float temperature=temp->getVal<float>()+0.5; // "simulate" a half-degree temperature change...
if(temperature>35.0) // ...but cap the maximum at 35C before starting over at 10C
temperature=10.0;
if(temperature>35.0) // ...but cap the maximum at 35C before starting over at -30C
temperature=-30.0;
temp->setVal(temperature); // set the new temperature; this generates an Event Notification and also resets the elapsed time

4
src/HAPConstants.h
View File

@ -99,6 +99,8 @@ struct HapCharType {
#define HAPCHAR(name,id,perms) HapCharType name {#id,#name,perms}
struct HapCharList {
enum { // create bitflags based on HAP Table 6-4
PR=1,
PW=2,
@ -110,8 +112,6 @@ struct HapCharType {
NV=128
};
struct HapCharList {
HAPCHAR( Active, B0, PW+PR+EV );
HAPCHAR( AirQuality, 95, PR+EV );
HAPCHAR( BatteryLevel, 68, PR+EV );