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89	89	== Upgrade Firmware of LA66 LoRaWAN Shield ==
90	90
	91	+=== what needs to be used ===
91	91
	93	+1.LA66 LoRaWAN Shield that needs to be upgraded
92	92
	95	+2.Arduino
	96	+
	97	+3.USB TO TTL
	98	+
	99	+[[image:image-20220602100052-2.png]]
	100	+
	101	+=== Wiring Schematic ===
	102	+
	103	+[[image:image-20220602101311-3.png]]
	104	+
	105	+LA66 LoRaWAN Shield  >>>>>>>>>>>>USB TTL
	106	+
	107	+GND  >>>>>>>>>>>>GND
	108	+
	109	+TXD  >>>>>>>>>>>>TXD
	110	+
	111	+RXD  >>>>>>>>>>>>RXD
	112	+
	113	+JP6 of LA66 LoRaWAN Shield needs to be connected with yellow jumper cap
	114	+
	115	+Connect to the PC after connecting the wires
	116	+
	117	+[[image:image-20220602102240-4.png]]
	118	+
	119	+=== Upgrade steps ===
	120	+
	121	+
93	93	= LA66 USB LoRaWAN Adapter =
94	94
95	95	LA66 USB LoRaWAN Adapter is the USB Adapter for LA66, it combines a USB TTL Chip and LA66 module which can easy to test the LoRaWAN feature by using PC or embedded device which has USB Interface.
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113	113
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115	115	== Upgrade Firmware of LA66 USB LoRaWAN Adapter ==
116		-
117		-