(24.05.2024, 09:27)admin Wrote: Connect script fails because of "NO CARRIER" message meaning that there's no mobile connection.
Run this updated script and post what you get in Logs:
Code:io.writefile('/sys/class/gpio/export', 8) io.writefile('/sys/class/gpio/export', 71) io.writefile('/sys/class/gpio/gpio8/direction', 'high') os.sleep(1) io.writefile('/sys/class/gpio/gpio8/direction', 'low') io.writefile('/sys/class/gpio/gpio71/direction', 'high') tty1 = '/dev/ttyACM3' tty2 = '/dev/ttyUSB2' for i = 1, 20 do os.sleep(1) if io.exists(tty1) then tty = tty1 break elseif io.exists(tty2) then tty = tty2 break end end if not tty then log('init failed') return end buf = {} function send(cmd, timeout) port:flush() port:write(cmd .. '\r\n') local res, err = port:read(1000, timeout or 1) return res, err end function sendlog(cmd, timeout) local res = send(cmd, timeout) if res then buf[ #buf + 1 ] = res end return res end port = require('serial').open(tty) log('open port', tty) for i = 1, 20 do res = send('AT') if res then break end end if not res then log('no response') return end sendlog('AT&F', 10) -- reset settings sendlog('ATE1') -- echo enabled function readstatus() local data, res, simok, network data = sendlog('AT+CSQ') if data then res = data:match('+CSQ: (%d+)') res = tonumber(res) if res then log('Signal: ' .. tostring(res)) else log('Signal: no response') end else log('Signal: no data from port') end data = sendlog('AT+CPIN?') or '' if data:find('CME ERROR') then log('SIM: not found') elseif data:find('+CPIN: READY') then log('SIM: OK') simok = true else log('SIM: unknown') end data = sendlog('AT+COPS?') if data then res = data:match('+COPS: %d+,%d+,"(.*)",%d+') if res then log('Network: ' .. tostring(res)) network = res else log('Network: no info') end else log('Network: no data from port') end return simok and network end for i = 1, 20 do if readstatus() then break end end res = table.concat(buf) log(res)
after restart
* string: AT&F
OK
+CPIN: READY
SMS DONE
PB DONE
NO CARRIER
+PPPD: DISCONNECTED
ATE1
OK
AT+CSQ
+CSQ: 99,99
OK
AT+CPIN?
+CPIN: READY
OK
AT+COPS?
+COPS: 0
OK
AT+CSQ
+CSQ: 99,99
OK
NO CARRIER
+PPPD: DISCONNECTED
AT+CPIN?
+CPIN: READY
OK
AT+COPS?
+COPS: 0
OK
AT+CSQ
+CSQ: 99,99
OK
AT+CPIN?
+CPIN: READY
OK
AT+COPS?
+COPS: 0
OK
AT+CSQ
+CSQ: 12,99
OK
AT+CPIN?
+CPIN: READY
OK
AT+COPS?
+COPS: 0,0,"WINDTRE",2
OK