Add setVal function

Author: nseidle

src/SparkFun_u-blox_GNSS_Arduino_Library.h

@@ -488,6 +488,7 @@ enum sfe_ublox_ls_src_e
 
 #ifndef MAX_PAYLOAD_SIZE
 // v2.0: keep this for backwards-compatibility, but this is largely superseded by setPacketCfgPayloadSize
+#define MAX_PAYLOAD_SIZE 256 //We need ~220 bytes for getProtocolVersion on most ublox modules
 //#define MAX_PAYLOAD_SIZE 768 //Worst case: UBX_CFG_VALSET packet with 64 keyIDs each with 64 bit values
 #endif
 
@@ -754,6 +755,7 @@ class SFE_UBLOX_GNSS
 	uint16_t getVal16(uint16_t group, uint16_t id, uint8_t size, uint8_t layer = VAL_LAYER_RAM, uint16_t maxWait = 250); //Returns the value at a given group/id/size location
 	uint32_t getVal32(uint16_t group, uint16_t id, uint8_t size, uint8_t layer = VAL_LAYER_RAM, uint16_t maxWait = 250); //Returns the value at a given group/id/size location
 	uint8_t setVal(uint32_t keyID, uint16_t value, uint8_t layer = VAL_LAYER_ALL, uint16_t maxWait = 250);				 //Sets the 16-bit value at a given group/id/size location
+	uint8_t setVal(uint8_t *values, uint16_t len, uint8_t layer = VAL_LAYER_RAM, uint16_t maxWait = 250);				 //Send an array of keys and values
 	uint8_t setVal8(uint32_t keyID, uint8_t value, uint8_t layer = VAL_LAYER_ALL, uint16_t maxWait = 250);				 //Sets the 8-bit value at a given group/id/size location
 	uint8_t setVal16(uint32_t keyID, uint16_t value, uint8_t layer = VAL_LAYER_ALL, uint16_t maxWait = 250);			 //Sets the 16-bit value at a given group/id/size location
 	uint8_t setVal32(uint32_t keyID, uint32_t value, uint8_t layer = VAL_LAYER_ALL, uint16_t maxWait = 250);			 //Sets the 32-bit value at a given group/id/size location