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...	...	@@ -1794,7 +1794,7 @@
1794	1794	)))
1795	1795
1796	1796	(((
1797		-The following is the list of all the AT commands related to the LT-22222-L, except for those used for switching between work modes.
	1797	+The following is the list of all the AT commands related to the LT-22222-L, except for those used for switching between working modes.
1798	1798
1799	1799	* AT+<CMD>? : Help on <CMD>
1800	1800	* AT+<CMD> : Run <CMD>
...	...	@@ -1853,28 +1853,28 @@
1853	1853
1854	1854
1855	1855	(((
1856		-(% style="color:blue" %)**If the device has not joined the network yet:**
	1856	+(% style="color:blue" %)**If the device has not yet joined the network:**
1857	1857	)))
1858	1858	)))
1859	1859
1860	1860	(((
1861		-(% style="background-color:#dcdcdc" %)##**123456 ~/~/enable AT commands access**##
	1861	+(% style="background-color:#dcdcdc" %)##**123456 ~/~/Enter the password to enable AT commands access**##
1862	1862	)))
1863	1863
1864	1864	(((
1865		-(% style="background-color:#dcdcdc" %)##**AT+FDR ~/~/reset parameters to factory default, reserve keys**##
	1865	+(% style="background-color:#dcdcdc" %)##**AT+FDR ~/~/Reset parameters to factory default, Reserve keys**##
1866	1866	)))
1867	1867
1868	1868	(((
1869		-(% style="background-color:#dcdcdc" %)##**123456 ~/~/enable AT commands access**##
	1869	+(% style="background-color:#dcdcdc" %)##**123456 ~/~/Enter the password to enable AT commands access**##
1870	1870	)))
1871	1871
1872	1872	(((
1873		-(% style="background-color:#dcdcdc" %)##**AT+NJM=0 ~/~/set to ABP mode**##
	1873	+(% style="background-color:#dcdcdc" %)##**AT+NJM=0 ~/~/Set to ABP mode**##
1874	1874	)))
1875	1875
1876	1876	(((
1877		-(% style="background-color:#dcdcdc" %)##**ATZ ~/~/reset MCU**##
	1877	+(% style="background-color:#dcdcdc" %)##**ATZ ~/~/Reset MCU**##
1878	1878	)))
1879	1879
1880	1880
...	...	@@ -1897,20 +1897,20 @@
1897	1897
1898	1898
1899	1899	(((
1900		-(% style="background-color:#dcdcdc" %)**123456**(%%)  ~/~/ Enter Password to have AT access.
	1900	+(% style="background-color:#dcdcdc" %)**123456**(%%)  ~/~/ Enter password to enable AT commands access
1901	1901	)))
1902	1902	)))
1903	1903
1904	1904	(((
1905		-(% style="background-color:#dcdcdc" %)** AT+FDR**(%%)  ~/~/ Reset Parameters to Factory Default, Keys Reserve
	1905	+(% style="background-color:#dcdcdc" %)** AT+FDR**(%%)  ~/~/ Reset parameters to Factory Default, Reserve keys
1906	1906	)))
1907	1907
1908	1908	(((
1909		-(% style="background-color:#dcdcdc" %)** 123456**(%%)  ~/~/ Enter Password to have AT access.
	1909	+(% style="background-color:#dcdcdc" %)** 123456**(%%)  ~/~/ Enter password to enable AT commands access
1910	1910	)))
1911	1911
1912	1912	(((
1913		-(% style="background-color:#dcdcdc" %)** AT+CLASS=C**(%%)  ~/~/ Set to work in CLASS C
	1913	+(% style="background-color:#dcdcdc" %)** AT+CLASS=C**(%%)  ~/~/ Set to CLASS C mode
1914	1914	)))
1915	1915
1916	1916	(((
...	...	@@ -1930,19 +1930,19 @@
1930	1930	)))
1931	1931
1932	1932	(((
1933		-(% style="background-color:#dcdcdc" %)** AT+CHS=868400000**(%%)  ~/~/ Set transmit frequency to 868.4Mhz
	1933	+(% style="background-color:#dcdcdc" %)** AT+CHS=868400000**(%%)  ~/~/ Set transmit frequency to 868.4 MHz
1934	1934	)))
1935	1935
1936	1936	(((
1937		-(% style="background-color:#dcdcdc" %)** AT+RX2FQ=868400000**(%%)  ~/~/ Set RX2Frequency to 868.4Mhz (according to the result from server)
	1937	+(% style="background-color:#dcdcdc" %)** AT+RX2FQ=868400000**(%%)  ~/~/ Set RX2 frequency to 868.4 MHz (according to the result from the server)
1938	1938	)))
1939	1939
1940	1940	(((
1941		-(% style="background-color:#dcdcdc" %)** AT+RX2DR=5**(%%)** ** ~/~/ Set RX2DR to match the downlink DR from server. see below
	1941	+(% style="background-color:#dcdcdc" %)** AT+RX2DR=5**(%%)** ** ~/~/ Set RX2 DR to match the downlink DR from the server. See below.
1942	1942	)))
1943	1943
1944	1944	(((
1945		-(% style="background-color:#dcdcdc" %)** AT+DADDR=26 01 1A F1** (%%) ~/~/ Set Device Address to 26 01 1A F1, this ID can be found in the LoRa Server portal.
	1945	+(% style="background-color:#dcdcdc" %)** AT+DADDR=26 01 1A F1** (%%) ~/~/ Set Device Address. The Device Address can be found in the application on the LoRaWAN NS.
1946	1946	)))
1947	1947
1948	1948	(((
...	...	@@ -1956,14 +1956,14 @@
1956	1956	)))
1957	1957
1958	1958	(((
1959		-**~1. Make sure the device is set to ABP mode in the IoT Server.**
	1959	+**~1. Ensure that the device is set to ABP mode in the LoRaWAN Network Server.**
1960	1960
1961		-**2. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.**
	1961	+**2. Verify that the LG01/02 gateway RX frequency matches the AT+CHS setting exactly.**
1962	1962
1963		-**3. Make sure SF / bandwidth setting in LG01/LG02 match the settings of AT+DR. refer [[this link>>url:http://www.dragino.com/downloads/index.php?
	1963	+**3. Make sure the SF/bandwidth settings in the LG01/LG02 match the settings of AT+DR. Refer to [[this link>>url:http://www.dragino.com/downloads/index.php?
1964	1964	dir=LoRa_Gateway/&file=LoRaWAN%201.0.3%20Regional%20Parameters.xlsx]] to see what DR means.**
1965	1965
1966		-**4. The command AT+RX2FQ and AT+RX2DR is to let downlink work. to set the correct parameters, user can check the actually downlink parameters to be used. As below. Which shows the RX2FQ should use 868400000 and RX2DR should be 5.**
	1966	+**4. The commands AT+RX2FQ and AT+RX2DR enable downlink functionality. To set the correct parameters, you can check the actual downlink parameters to be used as shown below. Here, RX2FQ should be set to 868400000 and RX2DR should be set to 5.**
1967	1967	)))
1968	1968
1969	1969	(((
...	...	@@ -1997,10 +1997,8 @@
1997	1997
1998	1998	== 6.1 How to update the firmware? ==
1999	1999
2000		-Dragino frequently releases firmware updates for the LT-22222-L.
	2000	+Dragino frequently releases firmware updates for the LT-22222-L. Updating your LT-22222-L with the latest firmware version helps to:
2001	2001
2002		-Updating your LT-22222-L with the latest firmware version helps to:
2003		-
2004	2004	* Support new features
2005	2005	* Fix bugs
2006	2006	* Change LoRaWAN frequency bands
...	...	@@ -2018,8 +2018,8 @@
2018	2018
2019	2019	Below is the hardware setup for uploading a firmware image to the LT-22222-L:
2020	2020
	2019	+[[image:usb-ttl-programming.png]]
2021	2021
2022		-[[image:1653359603330-121.png]]
2023	2023
2024	2024
2025	2025	Start the STM32 Flash Loader and choose the correct COM port to update.
...	...	@@ -2043,7 +2043,7 @@
2043	2043	[[image:image-20220524104033-15.png]]
2044	2044
2045	2045
2046		-(% style="color:red" %)**Note**(%%): If you have lost the programming cable, you can make one from a 3.5mm cable. The pin mapping is as follows:
	2044	+(% style="color:red" %)**Note**(%%): If you have lost the programming cable, you can make one from a 3.5 mm cable. The pin mapping is as follows:
2047	2047
2048	2048	[[image:1653360054704-518.png||height="186" width="745"]]
2049	2049
...	...	@@ -2159,6 +2159,7 @@
2159	2159	* In modes 2 to 5, the DO/RO status and pulse count are saved to flash memory.
2160	2160	* After a restart, the status before the power failure will be read from flash.
2161	2161
	2160	+
2162	2162	== 6.8 Can I setup LT-22222-L as a NC (Normally Closed) relay? ==
2163	2163
2164	2164	The LT-22222-L's built-in relay is Normally Open (NO). You can use an external relay to achieve a Normally Closed (NC) configuration. The circuit diagram is shown below: