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Updated How to make phone call send sms with 4G extension (markdown)

GNU 2023-09-12 19:14:58 +08:00
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How-to-make-phone-call---send-sms-with-4G-extension.md

@ -2,6 +2,8 @@ First we need [power on the 4G extension](https://github.com/clockworkpi/uConsol
Then use [AT commands](https://github.com/clockworkpi/uConsole/blob/master/SIM7500_SIM7600%20Series_AT%20Command%20Manual_V3.00.pdf) to do the jobs in uConsole
We use /dev/ttyUSB3 as AT port
## Check sim card if is ready
```
echo -en "AT+CPIN?\r\n" | sudo socat - /dev/ttyUSB3,crnl