TS-7840 Nimbelink
From embeddedTS Manuals
The Nimbelink Cell Radio socket is intended for Nimbelink's Skywire embedded modems.
# Turn off both, only 1 can be on.
gpioset 3 16=0
gpioset 3 17=0
# For modems wanting 4V:
gpioset 3 16=1
# For modems wanting 3.3V:
gpioset 3 17=1
If your modem supports USB, this must be enabled.
gpioset 3 21=0
For UART based modems these may default to faster speeds than the default clock.
set_uart_baud --port 3 --baud 921600
picocom -b 115200 /dev/ttyS4
Note: | Some Nimbelink cell modems have a long startup and may not show up on USB for a minute before enumerating on USB. |
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While pin 1 commonly lines up with the antennas on the modems, the pin 1 orientation should be verified in your modem's datasheet.