Eliminated constructor that had no pin parameter. Pin parameter is now always required. Since PushButton was not part of HomeSpan API, these changes should not impact any users.
If LOG1() or LOG2() is only provided with a SINGLE argument, then Serial.print() is called. This allows you to continue using LOG1() and LOG2() to directly print any variable or object that is handled by Serial.print(), such as an int, double, or even an IPAddress.
If LOG1() or LOG2() is provided with multiple arguments, the first is considered the format and Serial.printf(format...) is called. This allows you to use printf-like functionality within LOG1() and LOG2().
Use homeSpan.reserveSocketConnections(n) to reserve n sockets *not* to be used for HAP. Multiple calls can be used to cumulate a total number of reserved sockets. This makes is easy to add reserveSocketConnections(n) at multiple point in the code whenever a certain number of sockets need to be reserved for use with that portion of the code. For example enableOTA() calls reserveSocketConnections(1).
If both setMaxConnections(), and one or more reserveSocketConnections(), methods are called HomeSpan will use the more restrictive net value.
Reflects increase in max number of LWIP sockets from 10 (Arduino-ESP32 v2.0.0) to 16 (Arduino-ESP32 v2.0.1). Since HomeSpan needs at least 2 (one for Server and 1 free for new connections), this leaves 14 connections for controllers. A big improvement over only having 8!
Re-worked code to allow for NO Status LED Pin and NO Control Pin. If Control Pin is not set explicitly with homeSpan.setControlPin(), there will be no Control Pin. There is no longer a default since there are too many board variations with S2 and C3 chips now supported. Same for Status Pin - it will not be defined unless set explicitly with homeSpan.setStatusPin(), with the exception that if LED_BUILTIN is defined (i.e. there is a built-in LED), then the Status LED Pin will default to LED_BUILTIN if not explicitly defined. MUST UPDATE DOCUMENTATION - THIS CHANGES DEFAULT BEHAVIOR OF HOMESPAN AND MAY REQUIRE UPDATES TO EXISTING SKETCHES
OTA pasword now stored in NVS. Use 'O' command to change from default. Note password is stored as MD5 hash, and is therefore unrecoverable. Changes to password DO NOT take effect until next reboot. Password CAN be changed even if OTA has not been enabled for sketch. Blank passwords are not allowed.
Stored password can only be erased with 'E' command.
HomeSpan now broadcasts a Hashed Setup ID as MDNS "sh", which is used when pairing with a QR Code instead of a Setup Code. A text version of the resulting QR code is output to the Serial Monitor whenever the 9-digit Setup Code is generated or changed. The text version of the QR code can then be input into any QR Code Generator to create a pairable QR Code.
The default Setup ID used to create the Hashed Setup ID is "HSPN". This can be changed with homeSpan.setQRCode(const char *id), where id is exactly 4 alphanumeric characters. If not, the request to change the Setup ID is silently ignored and remains "HSPN."
HomeSpan defaults to running the HAP Server on port 80 (the standard HTTP port). This method allows the user to over-ride the default and have HomeSpan run the HAP Server on any other port.
ALSO: In updating this portion of the code, identified an additional parameter to the ESP32 version of WiFiServer that allows one to specify the number of simultaneous Server connections. The ESP32 default is 4, which suggests that the ESP32 was internally juggling connections that HomeSpan was keeping open (since the HomeSpan default is 8 connections).
This WiFiServer call has been updated to now specify both the port number AND the number of maximum simultaneous connections (to match whatever has been set by HomeSpan). This may or may not result in improving performance when more than 4 clients are connected.
LED_BUILTIN is NOT defined for all ESP32 boards - some do not have a built-in LED! Instead, Status LED now defaults to Pin 13, as opposed to LED_BUILTIN. Also, added a new method, homeSpan.getStatusPin(), to return the pin number used for the Status LED, whether or not it remains the default (13) or is changed by user with homeSpan.setStatusPin(pin). This method is now used in the DEV_Identify.h file for each example, instead of using LED_BUILTIN (which otherwise won't compile for boards without a built-in LED)
User can specifiy a REQUIRED minimum version on the HomeSpan Library for the sketch to compile. If the library version is older, the pre-processor will halt the compilation with a #error output
Ensures statusLED indicates a client is connected as soon as it received its first GET, even if the re-direction to /landing-page is yet to be accessed. This was needed to trigger LED_AP_CONNECTED when connecting with QR code.
Gregg