Changes between Version 19 and Version 20 of expansion/gw16130

Timestamp:

05/24/2019 07:45:02 PM (6 years ago)

Author:

Ryan Erbstoesser

Comment:

update troubleshooting

expansion/gw16130

@@ -49 +49 @@
 
 
-== Turning on Modem ==
+== Turning on Modem *REQUIRED* ==
 
 An FTDI FT231XQ USB to UART Chip is used to communicate with the Iridium Satcom modem via its serial UART.
@@ -104 +104 @@
 }}}
 
-AT Commands via shell: (only works if there is one ftdi device being used in the system)
+AT Commands via shell: (auto-magic device select script only works if there is one ftdi device being used in the system)
 {{{#!bash
 DEVICE=/dev/$(basename $(ls -d /sys/bus/usb/drivers/ftdi_sio/*/ttyUSB*))
@@ -114 +114 @@
 at "AT+GMR" # Revision details
 at "AT+GSN" # serial number (IEMI)
-at "AT+CSQ" # signal strength (0 to 5): '+CSQ:0'
+at "AT+CSQ" # signal strength (0 to 5): '+CSQ:0' (where 5 is the best, as in 5 bars of service vs 0 bars of service
 }}}
 
@@ -123 +123 @@
 AT+SBDWT=Hello World #enter message as string
 AT+SBDIX # Send message
-+SBDIX: 0, 4, 0, 0, 0, 0 #Response saying it was successful
++SBDIX: 0, 4, 0, 0, 0, 0 #Response saying it was successful 
 }}}
-  * To read more about the SBDIX response, read through one of the [https://www.google.com/search?q=iridium+9603+at+commands AT Command Documents]
-Troubleshooting:
- * If no AT commands are working, verify the modem is enabled using the FTDI CBUS GPIOs. 
+  * Typically the first number should be 0 for success. To read more about the SBDIX response, read through one of the [https://www.google.com/search?q=iridium+9603+at+commands AT Command Documents]
+
+== Troubleshooting ==
+ * If no AT commands are working, verify the modem is enabled using the FTDI CBUS GPIOs as described in the Turning on Modem section on this wiki page.
+ * Be sure the satellite antenna has a clear view of the sky, check the signal strength with the AT+CSQ