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Update Reference.md

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@ -59,7 +59,7 @@ The following **optional** `homeSpan` methods override various HomeSpan initiali
* 0 = top-level HomeSpan status messages, and any messages output by the user using `Serial.print()` or `Serial.printf()` (default)
* 1 = all HomeSpan status messages, and any `LOG1()` messages specified in the sketch by the user
* 2 = all HomeSpan status messages plus all HAP communication packets to and from the HomeSpan device, as well as all `LOG1()` and `LOG2()` messages specified in the sketch by the user
* see [Logging]() below for more details
* see [Message Logging Macros](#message-logging-macros) below for more details
* the log level can also be changed at runtime with the 'L' command via the [HomeSpan CLI](CLI.md)
* `void reserveSocketConnections(uint8_t nSockets)`
@ -157,7 +157,7 @@ The following **optional** `homeSpan` methods enable additional features and pro
* *logURL* - the URL of the log page for this device. If unspecified, defaults to "status"
* example: `homeSpan.enableWebLog(50,"pool.ntp.org","UTC-1:00","myLog");` creates a web log at the URL *http<nolink>://HomeSpan-\[DEVICE-ID\].local:\[TCP-PORT\]/myLog* that will display the 50 most-recent log messages produced with the WEBLOG() macro. Upon start-up (after a WiFi connection has been established) HomeSpan will attempt to set the device clock by calling the server "pool.ntp.org" and adjusting the time to be 1 hour ahead of UTC.
* When attemping to connect to *timeServerURL*, HomeSpan waits 10 seconds for a response. If no response is received after the 10-second timeout period, HomeSpan assumes the server is unreachable and skips the clock-setting procedure. Use `setTimeServerTimeout()` to re-configure the 10-second timeout period to another value
* See [Logging]() below for more details
* see [Message Logging Macros](#message-logging-macros) below for more details
* `void setTimeServerTimeout(uint32_t tSec)`
* changes the default 10-second timeout period HomeSpan uses when `enableWebLog()` tries set the device clock from an internet time server to *tSec* seconds
@ -378,12 +378,13 @@ To create more than one user-defined command, simply create multiple instances o
## Message Logging Macros
### *LOG1(X)* and *LOG2(X)*
### *LOG1(const char \*fmt, ...) and *LOG2(const char \*fmt, ...)*
### *LOG1(const char \*fmt, ...)* and *LOG2(const char \*fmt, ...)*
Displays user-defined log messages on the Arduino Serial Monitor according to the log level specified with `setLogLevel()`, or as specified at runtime with the 'L' command via the [HomeSpan CLI](CLI.md). `LOG1()` messages will be output only if the log level is set to 1 or greater. `LOG2()` messages will be output only if the log level is set to 2.
* In the first form (e.g. `LOG1(X)`), the macro calls `Serial.print(X)`. The argument *X* can be any variable recognized by the Arduino `Serial.print()` function. For example, `int val=255; LOG1(val);` outputs "255" to the Serial Monitor
* In the second form (e.g. `LOG1(const char *fmt, ...)`), the macro calls `Serial.printf(fmt, ...)` enabling you to create printf-style formatted output. For example, `int val=255; LOG1("The value is: %X",val);` outputs the "The value is: FF" to the Serial Monitor
* See [Example 9 - Message Logging](https://github.com/HomeSpan/HomeSpan/blob/master/docs/Tutorials.md#example-9---messagelogging) for a tutorial sketch demonstrating these functions
### WEBLOG(const char *fmt, ...)