Last modified by Saxer Lin on 2025/04/15 17:24
<
From version < 187.1 >
edited by Dilisi S
on 2024/11/11 05:23
To version < 193.1 >
edited by Dilisi S
on 2024/11/14 05:28
>
Change comment: Nov 13 edits part 2

Summary

Details

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Content
... ... @@ -111,23 +111,6 @@
111 111  * Smart cities
112 112  * Smart factory
113 113  
114 -== 1.5 Hardware Variants ==
115 -
116 -
117 -(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:500px" %)
118 -|(% style="background-color:#4f81bd; color:white; width:103px" %)**Model**|(% style="background-color:#4f81bd; color:white; width:131px" %)**Photo**|(% style="background-color:#4f81bd; color:white; width:266px" %)**Description**
119 -|(% style="width:103px" %)**LT22222-L**|(% style="width:131px" %)(((
120 -(% style="text-align:center" %)
121 -[[image:image-20230424115112-1.png||height="106" width="58"]]
122 -)))|(% style="width:334px" %)(((
123 -* 2 x Digital Input (Bi-direction)
124 -* 2 x Digital Output
125 -* 2 x Relay Output (5A@250VAC / 30VDC)
126 -* 2 x 0~~20mA Analog Input (res:0.01mA)
127 -* 2 x 0~~30V Analog Input (res:0.01v)
128 -* 1 x Counting Port
129 -)))
130 -
131 131  = 2. Assembling the device =
132 132  
133 133  == 2.1 Connecting the antenna ==
... ... @@ -318,8 +318,12 @@
318 318  (((
319 319  This is the default mode.
320 320  
321 -The uplink payload is 11 bytes long. (% style="display:none" wfd-invisible="true" %)
304 +The uplink payload is 11 bytes long.
322 322  
306 +(% style="color:red" %)**Note:The maximum count depends on the bytes it is.
307 +The maximum count for four bytes is FFFFFFFF (hex) = 4294967295 (dec).
308 +It starts counting again when it reaches the maximum value.**(% style="display:none" wfd-invisible="true" %)
309 +
323 323  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
324 324  |(% style="background-color:#4f81bd; color:white" %)**Size(bytes)**|(% style="background-color:#4f81bd; color:white" %)**2**|(% style="background-color:#4f81bd; color:white" %)**2**|(% style="background-color:#4f81bd; color:white" %)**2**|(% style="background-color:#4f81bd; color:white" %)**2**|(% style="background-color:#4f81bd; color:white" %)**1**|(% style="background-color:#4f81bd; color:white" %)**1**|(% style="background-color:#4f81bd; color:white" %)**1**
325 325  |Value|(((
... ... @@ -389,6 +389,10 @@
389 389  (((
390 390  The uplink payload is 11 bytes long.
391 391  
379 +(% style="color:red" %)**Note:The maximum count depends on the bytes it is.
380 +The maximum count for four bytes is FFFFFFFF (hex) = 4294967295 (dec).
381 +It starts counting again when it reaches the maximum value.**
382 +
392 392  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
393 393  |(% style="background-color:#4f81bd; color:white" %)**Size(bytes)**|(% style="background-color:#4f81bd; color:white" %)**4**|(% style="background-color:#4f81bd; color:white" %)**4**|(% style="background-color:#4f81bd; color:white" %)**1**|(% style="background-color:#4f81bd; color:white" %)**1**|(% style="background-color:#4f81bd; color:white" %)**1**
394 394  |Value|COUNT1|COUNT2 |DIDORO*|(((
... ... @@ -453,6 +453,9 @@
453 453  
454 454  === 3.3.3 AT+MOD~=3, Single DI Counting + 2 x ACI ===
455 455  
447 +(% style="color:red" %)**Note: The maximum count depends on the bytes it is.
448 +The maximum count for four bytes is FFFFFFFF (hex) = 4294967295 (dec).
449 +It starts counting again when it reaches the maximum value.**
456 456  
457 457  **LT22222-L**: In this mode, the DI1 is used as a counting pin.
458 458  
... ... @@ -503,7 +503,11 @@
503 503  
504 504  === 3.3.4 AT+MOD~=4, Single DI Counting + 1 x Voltage Counting ===
505 505  
500 +(% style="color:red" %)**Note:The maximum count depends on the bytes it is.
501 +The maximum count for four bytes is FFFFFFFF (hex) = 4294967295 (dec).
502 +It starts counting again when it reaches the maximum value.**
506 506  
504 +
507 507  (((
508 508  **LT22222-L**: In this mode, the DI1 is used as a counting pin.
509 509  )))
... ... @@ -568,7 +568,11 @@
568 568  
569 569  === 3.3.5 AT+MOD~=5, Single DI Counting + 2 x AVI + 1 x ACI ===
570 570  
569 +(% style="color:red" %)**Note:The maximum count depends on the bytes it is.
570 +The maximum count for four bytes is FFFFFFFF (hex) = 4294967295 (dec).
571 +It starts counting again when it reaches the maximum value.**
571 571  
573 +
572 572  **LT22222-L**: In this mode, the DI1 is used as a counting pin.
573 573  
574 574  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
... ... @@ -1792,7 +1792,7 @@
1792 1792  )))
1793 1793  
1794 1794  (((
1795 -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.
1796 1796  
1797 1797  * AT+<CMD>? : Help on <CMD>
1798 1798  * AT+<CMD> : Run <CMD>
... ... @@ -1851,28 +1851,28 @@
1851 1851  
1852 1852  
1853 1853  (((
1854 -(% 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:**
1855 1855  )))
1856 1856  )))
1857 1857  
1858 1858  (((
1859 -(% style="background-color:#dcdcdc" %)##**123456 ~/~/enable AT commands access**##
1861 +(% style="background-color:#dcdcdc" %)##**123456 ~/~/Enter the password to enable AT commands access**##
1860 1860  )))
1861 1861  
1862 1862  (((
1863 -(% 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**##
1864 1864  )))
1865 1865  
1866 1866  (((
1867 -(% style="background-color:#dcdcdc" %)##**123456 ~/~/enable AT commands access**##
1869 +(% style="background-color:#dcdcdc" %)##**123456 ~/~/Enter the password to enable AT commands access**##
1868 1868  )))
1869 1869  
1870 1870  (((
1871 -(% style="background-color:#dcdcdc" %)##**AT+NJM=0 ~/~/set to ABP mode**##
1873 +(% style="background-color:#dcdcdc" %)##**AT+NJM=0 ~/~/Set to ABP mode**##
1872 1872  )))
1873 1873  
1874 1874  (((
1875 -(% style="background-color:#dcdcdc" %)##**ATZ ~/~/reset MCU**##
1877 +(% style="background-color:#dcdcdc" %)##**ATZ ~/~/Reset MCU**##
1876 1876  )))
1877 1877  
1878 1878  
... ... @@ -1895,20 +1895,20 @@
1895 1895  
1896 1896  
1897 1897  (((
1898 -(% style="background-color:#dcdcdc" %)**123456**(%%)  ~/~/ Enter Password to have AT access.
1900 +(% style="background-color:#dcdcdc" %)**123456**(%%)  ~/~/ Enter password to enable AT commands access
1899 1899  )))
1900 1900  )))
1901 1901  
1902 1902  (((
1903 -(% 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
1904 1904  )))
1905 1905  
1906 1906  (((
1907 -(% style="background-color:#dcdcdc" %)** 123456**(%%)  ~/~/ Enter Password to have AT access.
1909 +(% style="background-color:#dcdcdc" %)** 123456**(%%)  ~/~/ Enter password to enable AT commands access
1908 1908  )))
1909 1909  
1910 1910  (((
1911 -(% 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
1912 1912  )))
1913 1913  
1914 1914  (((
... ... @@ -1928,19 +1928,19 @@
1928 1928  )))
1929 1929  
1930 1930  (((
1931 -(% 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
1932 1932  )))
1933 1933  
1934 1934  (((
1935 -(% 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)
1936 1936  )))
1937 1937  
1938 1938  (((
1939 -(% 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.
1940 1940  )))
1941 1941  
1942 1942  (((
1943 -(% 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.
1944 1944  )))
1945 1945  
1946 1946  (((
... ... @@ -1954,14 +1954,14 @@
1954 1954  )))
1955 1955  
1956 1956  (((
1957 -**~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.**
1958 1958  
1959 -**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.**
1960 1960  
1961 -**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?
1962 1962  dir=LoRa_Gateway/&file=LoRaWAN%201.0.3%20Regional%20Parameters.xlsx]] to see what DR means.**
1963 1963  
1964 -**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.**
1965 1965  )))
1966 1966  
1967 1967  (((
... ... @@ -1995,10 +1995,8 @@
1995 1995  
1996 1996  == 6.1 How to update the firmware? ==
1997 1997  
1998 -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:
1999 1999  
2000 -Updating your LT-22222-L with the latest firmware version helps to:
2001 -
2002 2002  * Support new features
2003 2003  * Fix bugs
2004 2004  * Change LoRaWAN frequency bands
... ... @@ -2016,8 +2016,8 @@
2016 2016  
2017 2017  Below is the hardware setup for uploading a firmware image to the LT-22222-L:
2018 2018  
2019 +[[image:usb-ttl-programming.png]]
2019 2019  
2020 -[[image:1653359603330-121.png]]
2021 2021  
2022 2022  
2023 2023  Start the STM32 Flash Loader and choose the correct COM port to update.
... ... @@ -2041,7 +2041,7 @@
2041 2041  [[image:image-20220524104033-15.png]]
2042 2042  
2043 2043  
2044 -(% 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:
2045 2045  
2046 2046  [[image:1653360054704-518.png||height="186" width="745"]]
2047 2047  
... ... @@ -2059,18 +2059,18 @@
2059 2059  (((
2060 2060  
2061 2061  
2062 -== 6.3 How to setup LT to work with a Single Channel Gateway, such as LG01/LG02? ==
2062 +== 6.3 How to setup LT-22222-L to work with a Single Channel Gateway, such as LG01/LG02? ==
2063 2063  )))
2064 2064  
2065 2065  (((
2066 2066  (((
2067 -In this case, you need to set the LT-33222-L to work in ABP mode and transmit on only one frequency.
2067 +In this case, you need to set the LT-22222-L to work in ABP mode and transmit on only one frequency.
2068 2068  )))
2069 2069  )))
2070 2070  
2071 2071  (((
2072 2072  (((
2073 -Assume you have an LG02 working on the frequency 868400000. Below are the steps.
2073 +We assume you have an LG01/LG02 working on the frequency 868400000. Below are the steps.
2074 2074  
2075 2075  
2076 2076  )))
... ... @@ -2077,52 +2077,55 @@
2077 2077  )))
2078 2078  
2079 2079  (((
2080 -(% style="color:#0000ff" %)**Step 1**(%%):  Log in to The Things Stack SANDBOX, create an ABP device in the application, and input the Network Session key (NwkSKey), App session key (AppSKey) of the device.
2080 +(% style="color:#0000ff" %)**Step 1**(%%): Log in to The Things Stack Sandbox account and create an ABP device in the application. To do this, use the manual registration option as explained in section 3.2.2.2, //Adding a Device Manually//. Select //Activation by Personalization (ABP)// under Activation Mode. Enter the DevEUI exactly as shown on the registration information sticker, then generate the Device Address, Application Session Key (AppSKey), and Network Session Key (NwkSKey).
2081 2081  
2082 -
2082 +[[image:lt-22222-l-abp.png||height="686" width="1000"]]
2083 2083  )))
2084 2084  
2085 2085  (((
2086 -[[image:1653360231087-571.png||height="401" width="727"]]
2087 -
2088 2088  
2089 2089  )))
2090 2090  
2091 -(((
2092 -(% 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.**
2093 -)))
2089 +{{warning}}
2090 +Ensure that the Device Address (DevAddr) and the two keys match between the LT-22222-L and The Things Stack. You can modify them either in The Things Stack or on the LT-22222-L to make them align. In The Things Stack, you can configure the NwkSKey and AppSKey on the settings page, but note that the Device Address is generated by The Things Stack.
2091 +{{/warning}}
2094 2094  
2095 2095  
2096 -
2097 2097  (((
2098 -(% style="color:blue" %)**Step2**(%%)**:  **Run AT Command to make LT work in Single frequency & ABP mode. Below is the AT commands:
2095 +(% style="color:blue" %)**Step 2**(%%)**:  **(% style="color:#000000; font-family:Arial,sans-serif; font-size:11pt; font-style:normal; font-variant-alternates:normal; font-variant-east-asian:normal; font-variant-ligatures:normal; font-variant-numeric:normal; font-variant-position:normal; font-weight:400; text-decoration:none; white-space:pre-wrap" %)Run AT commands to configure the LT-22222-L to operate in single-frequency and ABP mode. The AT commands are as follows:
2099 2099  
2100 2100  
2101 2101  )))
2102 2102  
2103 2103  (((
2104 -(% style="background-color:#dcdcdc" %)**123456** (%%) :  Enter Password to have AT access.
2101 +(% style="background-color:#dcdcdc" %)**123456** (%%) : Enter the password to enable AT access.
2105 2105  
2106 -(% style="background-color:#dcdcdc" %)**AT+FDR**(%%)  :  Reset Parameters to Factory Default, Keys Reserve
2103 +(% style="background-color:#dcdcdc" %)**AT+FDR**(%%) : Reset parameters to factory default, keeping keys reserved.
2107 2107  
2108 -(% style="background-color:#dcdcdc" %)**AT+NJM=0** (%%) :  Set to ABP mode
2105 +(% style="background-color:#dcdcdc" %)**AT+NJM=0** (%%) : Set to ABP mode.
2109 2109  
2110 -(% style="background-color:#dcdcdc" %)**AT+ADR=0** (%%) :  Set the Adaptive Data Rate Off
2107 +(% style="background-color:#dcdcdc" %)**AT+ADR=0** (%%) : Disable the Adaptive Data Rate (ADR).
2111 2111  
2112 -(% style="background-color:#dcdcdc" %)**AT+DR=5** (%%) :  Set Data Rate (Set AT+DR=3 for 915 band)
2109 +(% style="background-color:#dcdcdc" %)**AT+DR=5** (%%) : Set Data Rate (Use AT+DR=3 for the 915 MHz band).
2113 2113  
2114 -(% style="background-color:#dcdcdc" %)**AT+TDC=60000 **(%%) :  Set transmit interval to 60 seconds
2111 +(% style="background-color:#dcdcdc" %)**AT+TDC=60000 **(%%) : Set transmit interval to 60 seconds.
2115 2115  
2116 -(% style="background-color:#dcdcdc" %)**AT+CHS=868400000**(%%) : Set transmit frequency to 868.4Mhz
2113 +(% style="background-color:#dcdcdc" %)**AT+CHS=868400000**(%%) : Set transmit frequency to 868.4 MHz.
2117 2117  
2118 -(% style="background-color:#dcdcdc" %)**AT+DADDR=26 01 1A F1**(%%)  :  Set Device Address to 26 01 1A F1
2115 +(% style="background-color:#dcdcdc" %)**AT+DADDR=xxxx**(%%) : Set the Device Address (DevAddr)
2119 2119  
2120 -(% style="background-color:#dcdcdc" %)**ATZ**        (%%) :  Reset MCU
2117 +(% style="color:#000000; font-family:Arial,sans-serif; font-size:11pt; font-style:normal; font-variant-alternates:normal; font-variant-east-asian:normal; font-variant-ligatures:normal; font-variant-numeric:normal; font-variant-position:normal; font-weight:700; text-decoration:none; white-space:pre-wrap" %)**AT+APPKEY=xxxx**(% style="color:#000000; font-family:Arial,sans-serif; font-size:11pt; font-style:normal; font-variant-alternates:normal; font-variant-east-asian:normal; font-variant-ligatures:normal; font-variant-numeric:normal; font-variant-position:normal; font-weight:400; text-decoration:none; white-space:pre-wrap" %): Get or set the Application Key (AppKey)
2118 +
2119 +(% style="color:#000000; font-family:Arial,sans-serif; font-size:11pt; font-style:normal; font-variant-alternates:normal; font-variant-east-asian:normal; font-variant-ligatures:normal; font-variant-numeric:normal; font-variant-position:normal; font-weight:400; text-decoration:none; white-space:pre-wrap" %)**AT+NWKSKEY=xxxx**: Get or set the Network Session Key (NwkSKey)
2120 +
2121 +(% style="color:#000000; font-family:Arial,sans-serif; font-size:11pt; font-style:normal; font-variant-alternates:normal; font-variant-east-asian:normal; font-variant-ligatures:normal; font-variant-numeric:normal; font-variant-position:normal; font-weight:400; text-decoration:none; white-space:pre-wrap" %)**AT+APPSKEY=xxxx**: Get or set the Application Session Key (AppSKey)
2122 +
2123 +(% style="background-color:#dcdcdc" %)**ATZ**        (%%) : Reset MCU.
2121 2121  )))
2122 2122  
2123 2123  
2124 2124  (((
2125 -As shown in below:
2128 +(% style="color:#000000; font-family:Arial,sans-serif; font-size:11pt; font-style:normal; font-variant-alternates:normal; font-variant-east-asian:normal; font-variant-ligatures:normal; font-variant-numeric:normal; font-variant-position:normal; font-weight:400; text-decoration:none; white-space:pre-wrap" %)The following figure shows the screenshot of the command set above, issued using a serial tool:
2126 2126  )))
2127 2127  
2128 2128  [[image:1653360498588-932.png||height="485" width="726"]]
... ... @@ -2136,7 +2136,7 @@
2136 2136  == 6.5 Can I see the counting event in the serial output? ==
2137 2137  
2138 2138  (((
2139 -You can run the AT command AT+DEBUG to view the counting event in the serial output. If the firmware is too old and doesn’t support AT+DEBUG, update to the latest firmware first.
2142 +You can run the AT command **AT+DEBUG** to view the counting event in the serial output. If the firmware is too old and doesn’t support AT+DEBUG, update to the latest firmware first.
2140 2140  
2141 2141  
2142 2142  == 6.6 Can I use point-to-point communication with LT-22222-L? ==
... ... @@ -2165,7 +2165,7 @@
2165 2165  
2166 2166  == 6.9 Can the LT-22222-L save the RO state? ==
2167 2167  
2168 -The firmware version must be at least 1.6.0.
2171 +To enable this feature, the firmware version must be 1.6.0 or higher.
2169 2169  
2170 2170  
2171 2171  == 6.10 Why does the LT-22222-L always report 15.585V when measuring the AVI? ==
... ... @@ -2211,7 +2211,7 @@
2211 2211  )))
2212 2212  
2213 2213  
2214 -== 7.4 Why can the LT-22222-L perform Uplink normally, but cannot receive Downlink? ==
2217 +== 7.4 Why can the LT-22222-L perform uplink normally, but cannot receive downlink? ==
2215 2215  
2216 2216  The FCD count of the gateway is inconsistent with the FCD count of the node, causing the downlink to remain in the queue.
2217 2217  Use this command to synchronize their counts: [[Resets the downlink packet count>>||anchor="H3.4.2.23Resetsthedownlinkpacketcount"]]
... ... @@ -2234,7 +2234,7 @@
2234 2234  * (% style="color:red" %)**CN779**(%%): LT with frequency bands CN779
2235 2235  
2236 2236  
2237 -= 9. Packing information =
2240 += 9. Package information =
2238 2238  
2239 2239  **Package includes**:
2240 2240  
... ... @@ -2241,7 +2241,7 @@
2241 2241  * 1 x LT-22222-L I/O Controller
2242 2242  * 1 x LoRa antenna matched to the frequency of the LT-22222-L
2243 2243  * 1 x bracket for DIN rail mounting
2244 -* 1 x 3.5mm programming cable
2247 +* 1 x 3.5 mm programming cable
2245 2245  
2246 2246  **Dimension and weight**:
2247 2247  
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