Comment change only: clarify how to write an empty parameter (using uAtClientWriteString()).
@@ -637,7 +637,10 @@ void uAtClientWriteUint64(uAtClientHandle_t atHandle,
* Quotes are added around the string if useQuotes is
* true. The AT client tracks whether this is the first
* parameter or not and adds delimiters to the outgoing
- * AT command as appropriate.
+ * AT command as appropriate. You can skip a parameter
+ * (e.g. AT+BLAH=thing,,next_thing) by pointing pParam at
+ * a null terminator (i.e. 0) and setting useQuotes to
+ * false.
*
* @param atHandle the handle of the AT client.
* @param pParam the null-terminated string to be
