[System.IO.Ports.SerialPort]::getportnames() #list of ports
#my usb modem is connected as virtual COM8
#speed, parity, stop bits should be valid for all devices
$port= new-Object System.IO.Ports.SerialPort COM8,9600,None,8,one
$port.open()
$port.open(); Start-Sleep -Milliseconds 100
$port.Write("AT`r"); Start-Sleep -Milliseconds 100
if ($port.BytesToRead -gt 0) { $port.ReadExisting(); Start-Sleep -Milliseconds 100 }
$msg = "AT+CMGF=1`r"; $port.Write($msg); Start-Sleep -Milliseconds 100
if ($port.BytesToRead -gt 0) { $port.ReadExisting(); Start-Sleep -Milliseconds 100 }
#replace xxx with correct number and YY with corect country prefix
$msg = "AT+CMGS=""+YYxxxxxxxxx""`r"; $port.Write($msg); Start-Sleep -Milliseconds 100
if ($port.BytesToRead -gt 0) { $port.ReadExisting(); Start-Sleep -Milliseconds 100 }
$msg = "something stupid"; $port.Write($msg); Start-Sleep -Milliseconds 100
if ($port.BytesToRead -gt 0) { $port.ReadExisting(); Start-Sleep -Milliseconds 100 }
#escape character (CTRL-Z from terminal)
$port.Write([char]26); Start-Sleep -Milliseconds 100
if ($port.BytesToRead -gt 0) { $port.ReadExisting(); Start-Sleep -Milliseconds 100 }
$port.Close()
Output is of course - optional - in my main code it will be connected with commands. 100 ms is only "just in case". AT commands and communication
AT OK AT+CPIN? +CPIN: SIM PIN OKAT - like EHLO in SMTP
AT+CPIN? - query - is PIN required? possible answers are:
+CPIN: SIM PIN - when You MUST enter PIN
+CPIN: SIM PIN2 - when You MUST enter PIN2
+CPIN: SIM PUK - when You MUST enter PUK
+CPIN: SIM PUK2 - when You MUST enter PUK2
+CPIN: READY - when device is not expecting any code
AT - like EHLO in SMTP
AT+CPIN-= COMMAND NOT SUPPORT AT+CPIN= ERROR AT+CPIN=0000 OK AT+CPIN? +CPIN: READY OK AT+CPIN=0000 +CME ERROR: operation not allowedAT+CPIN-= - my mistake - and His majesty answer: COMMAND NOT SUPPORT
AT+CPIN= - my mistake - and His majesty answer: ERROR, because I didn't provide pin
AT+CPIN=0000 - yes - this of course fake pin, but answer is real OK
AT+CPIN? - yes - my device is ready +CPIN: READY, so the same command entering pin...
AT+CPIN=0000 ... will finish with +CME ERROR: operation not allowed
AT+CMGF=1 OKAT+CMGF=1 - set device in text messages mode, with 0 it will switch in PDU mode - Protocol Descritpion Unit - also for text messages but encoded way
AT+CMGS="xxxxxxxxx" > mamma mia +CMGS: 109 OKAT+CMGS="xxxxxxxxx" - I've been started message addressed to phone xxxxxxxxx
teminal is waiting for the message finished with escape character (26 ascii - Ctrl-Z)
+CMGS: 109 this and OK confirm, that message was sent
