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1825	1825	* Support new features
1826	1826	* For bug fix
1827	1827	* Change LoRaWAN bands.
1828		-
1829		-
1830	1830	Below shows the hardware connection for how to upload an image to the LT:
	1829	+* [[image:1653359603330-121.png]]
1831	1831
1832		-[[image:1653359603330-121.png]]
1833		-
1834		-
1835	1835	(((
1836	1836	**Step1:** Download [[flash loader>>url:https://www.st.com/content/st_com/en/products/development-tools/software-development-tools/stm32-software-development-tools/stm32-programmers/flasher-stm32.html]].
1837	1837	**Step2**: Download the [[LT Image files>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]].
1838	1838	**Step3: **Open flashloader; choose the correct COM port to update.
1839		-
1840		-
1841	1841	**For LT-22222-L**:
1842	1842	Hold down the PRO button and then momentarily press the RST reset button and the **DO1 led** will change from OFF to ON. When **DO1 LED** is on, it means the device is in download mode.
1843	1843	)))
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1863	1863
1864	1864	(((
1865	1865	User can follow the introduction for [[how to upgrade image>>||anchor="H5.1Howtoupgradetheimage3F"]]. When download the images, choose the required image file for download.
	1860	+
	1861	+
1866	1866	)))
1867	1867
1868	1868	(((
1869	1869
1870	1870
	1867	+
1871	1871	== 5.3 How to set up LT to work with Single Channel Gateway such as LG01/LG02? ==
1872	1872	)))
1873	1873
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1880	1880	(((
1881	1881	(((
1882	1882	Assume we have a LG02 working in the frequency 868400000 now , below is the step.
1883		-
1884		-
1885	1885	)))
1886	1886	)))
1887	1887
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1897	1897	(% style="color:red" %)Note: user just need to make sure above three keys match, User can change either in TTN or Device to make then match. In TTN, NETSKEY and APPSKEY can be configured by user in setting page, but Device Addr is generated by TTN.
1898	1898	)))
1899	1899
1900		-
1901	1901	(((
1902	1902	(% style="color:#4f81bd" %)**Step2**(%%)**: **Run AT Command to make LT work in Single frequency & ABP mode. Below is the AT commands:
1903	1903	)))
1904	1904
1905	1905	(((
1906		-(% style="background-color:#dcdcdc" %)123456 (%%) Enter Password to have AT access.
1907		-(% style="background-color:#dcdcdc" %)AT+FDR(%%)  Reset Parameters to Factory Default, Keys Reserve
1908		-(% style="background-color:#dcdcdc" %)123456 (%%) Enter Password to have AT access.
1909		-(% style="background-color:#dcdcdc" %)AT+NJM=0 (%%) Set to ABP mode
1910		-(% style="background-color:#dcdcdc" %)AT+ADR=0 (%%) Set the Adaptive Data Rate Off
1911		-(% style="background-color:#dcdcdc" %)AT+DR=5 (%%) Set Data Rate (Set AT+DR=3 for 915 band)
1912		-(% style="background-color:#dcdcdc" %)AT+TDC=60000 (%%) Set transmit interval to 60 seconds
1913		-(% style="background-color:#dcdcdc" %)AT+CHS=868400000(%%)  Set transmit frequency to 868.4Mhz
1914		-(% style="background-color:#dcdcdc" %)AT+DADDR=26 01 1A F1(%%)  Set Device Address to 26 01 1A F1
1915		-(% style="background-color:#dcdcdc" %)ATZ  (%%) Reset MCU
	1900	+(% style="background-color:#dcdcdc" %)123456 (%%) Enter Password to have AT access.
	1901	+(% style="background-color:#dcdcdc" %)AT+FDR  (%%) Reset Parameters to Factory Default, Keys Reserve
	1902	+(% style="background-color:#dcdcdc" %)123456  (%%) Enter Password to have AT access.
	1903	+(% style="background-color:#dcdcdc" %)AT+NJM=0 (%%)Set to ABP mode
	1904	+(% style="background-color:#dcdcdc" %)AT+ADR=0 (%%)Set the Adaptive Data Rate Off
	1905	+(% style="background-color:#dcdcdc" %)AT+DR=5 (%%) Set Data Rate (Set AT+DR=3 for 915 band)
	1906	+(% style="background-color:#dcdcdc" %)AT+TDC=60000  (%%)Set transmit interval to 60 seconds
	1907	+(% style="background-color:#dcdcdc" %)AT+CHS=868400000 (%%)Set transmit frequency to 868.4Mhz
	1908	+(% style="background-color:#dcdcdc" %)AT+DADDR=26 01 1A F1(%%) Set Device Address to 26 01 1A F1
	1909	+(% style="background-color:#dcdcdc" %)ATZ                (%%)Reset MCU
1916	1916	)))
1917	1917
1918		-
1919	1919	(((
1920	1920	As shown in below:
1921	1921	)))
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1932	1932	== 5.5 Can i use point to point communication for LT-22222-L? ==
1933	1933
1934	1934	Yes, please refer [[Point to Point Communication>>doc:Main. Point to Point Communication of LT-22222-L.WebHome]]
	1928	+
	1929	+
1935	1935	)))
1936	1936
1937	1937	(((
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1948	1948
1949	1949	(((
1950	1950	Please see this link for how to debug: [[LoRaWAN Communication Debug>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H5.1Howitwork"]]
	1946	+
	1947	+
1951	1951	)))
1952	1952
1953	1953	(((
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1962	1962
1963	1963	(((
1964	1964
	1962	+)))
1965	1965
	1964	+(((
	1965	+
	1966	+
1966	1966	== 6.3 Why I can’t join TTN in US915 /AU915 bands? ==
1967	1967	)))
1968	1968
...	...	@@ -2011,7 +2011,6 @@
2011	2011	* Weight / pcs : 170g
2012	2012
2013	2013
2014		-
2015	2015	= 9. Support =
2016	2016
2017	2017	* (((
...	...	@@ -2025,7 +2025,10 @@
2025	2025
2026	2026	= 10. Reference​​​​​ =
2027	2027
2028		-* LT-22222-L: [[http:~~/~~/www.dragino.com/products/lora-lorawan-end-node/item/156-lt-22222-l.html>>url:http://www.dragino.com/products/lora-lorawan-end-node/item/156-lt-22222-l.html]]
	2028	+* Product Page:
	2029	+
	2030	+LT-22222-L: [[http:~~/~~/www.dragino.com/products/lora-lorawan-end-node/item/156-lt-22222-l.html>>url:http://www.dragino.com/products/lora-lorawan-end-node/item/156-lt-22222-l.html]]
	2031	+
2029	2029	* [[Image Download>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]]
2030	2030	* [[AT Command Manual>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/]]
2031	2031	* [[Hardware Source>>url:https://github.com/dragino/Lora/tree/master/LT/LT-33222-L/v1.0]]