Hello, hopefully someone can help me.
I’m using the Tracker HAT with a raspi 4 and a pijuice module with a 5000mAh battery.
Firstly, I’m not able to establish a PPP connection without the pijuice supplying the power. When powered only by a 3A USB-C adapter, PPP fails with:
send (AT+CGDCONT=1,"IP","net2.vodafone.pt",,0,0^M)
expect (OK)
^M
^M
+CME ERROR
When using the pijuice, PPP works without problems.
In both cases, though, I’m never able to get a GPS Fix, even after hours outside with clear sky.
I’ve experimented with and without the PPP connection on, tried on a Raspi 3 and on a raspi zero W.
Also tried using the GPSforceOn() method on the Tracker api.
Below is the current output of the L96, using the readNMEA() method.
Am I missing something? Could this be a power issue? Could it be a faulty board?
Thank you very much for the attention.
L96 output:
$GPVTG,0.00,T,,M,0.00,N,0.00,K,N*32
$GPGGA,131343.086,,,,,0,0,,,M,,M,,*41
$GPGSA,A,1,,,,,,,,,,,,,,,,1*03
$GPGSA,A,1,,,,,,,,,,,,,,,,2*00
$GPGSV,1,1,01,18,,,20,0*6F
$GLGSV,1,1,00,1*78
$GPGLL,,,,,131343.086,V,N*73
$GPRMC,131344.086,V,,,,,0.00,0.00,280520,,,N,V*34
$GPVTG,0.00,T,,M,0.00,N,0.00,K,N*32
$GPGGA,131344.086,,,,,0,0,,,M,,M,,*46
$GPGSA,A,1,,,,,,,,,,,,,,,,1*03
$GPGSA,A,1,,,,,,,,,,,,,,,,2*00
$GPGSV,1,1,01,18,,,20,0*6F
$GLGSV,1,1,00,1*78
$GPGLL,,,,,131344.086,V,N*74
$GPRMC,131345.086,V,,,,,0.00,0.00,280520,,,N,V*35
$GPVTG,0.00,T,,M,0.00,N,0.00,K,N*32
$GPGGA,131345.086,,,,,0,0,,,M,,M,,*47
$GPGSA,A,1,,,,,,,,,,,,,,,,1*03
$GPGSA,A,1,,,,,,,,,,,,,,,,2*00
$GPGSV,1,1,01,18,,,20,0*6F
$GLGSV,1,1,00,1*78
$GPGLL,,,,,131345.086,V,N*75
$GPRMC,131346.086,V,,,,,0.00,0.00,280520,,,N,V*36
$GPVTG,0.00,T,,M,0.00,N,0.00,K,N*32
$GPGGA,131346.086,,,,,0,0,,,M,,M,,*44
$GPGSA,A,1,,,,,,,,,,,,,,,,1*03
$GPGSA,A,1,,,,,,,,,,,,,,,,2*00
$GPGSV,1,1,01,18,,,20,0*6F
$GLGSV,1,1,00,1*78
$GPGLL,,,,,131346.086,V,N*76
$GPRMC,131347.086,V,,,,,0.00,0.00,280520,,,N,V*37
$GPVTG,0.00,T,,M,0.00,N,0.00,K,N*32
$GPGGA,131347.086,,,,,0,0,,,M,,M,,*45
$GPGSA,A,1,,,,,,,,,,,,,,,,1*03
$GPGSA,A,1,,,,,,,,,,,,,,,,2*00
$GPGSV,1,1,01,18,,,20,0*6F
$GLGSV,1,1,00,1*78
$GPGLL,,,,,131347.086,V,N*77
$GPRMC,131348.086,V,,,,,0.00,0.00,280520,,,N,V*38
$GPVTG,0.00,T,,M,0.00,N,0.00,K,N*32
$GPGGA,131348.086,,,,,0,0,,,M,,M,,*4A
$GPGSA,A,1,,,,,,,,,,,,,,,,1*03
$GPGSA,A,1,,,,,,,,,,,,,,,,2*00
$GPGSV,1,1,01,18,,,19,0*65
$GLGSV,1,1,00,1*78
$GPGLL,,,,,131348.086,V,N*78
$GPRMC,131349.086,V,,,,,0.00,0.00,280520,,,N,V*39
Full PPP output when used without the pijuice (and failing):
pppd options in effect:
debug # (from /etc/ppp/peers/provider)
updetach # (from /etc/ppp/peers/provider)
dump # (from /etc/ppp/peers/provider)
noauth # (from /etc/ppp/peers/provider)
remotename 3gppp # (from /etc/ppp/peers/provider)
/dev/ttyS0 # (from /etc/ppp/peers/provider)
115200 # (from /etc/ppp/peers/provider)
lock # (from /etc/ppp/peers/provider)
connect chat -s -v -f /etc/chatscripts/chat-connect -T net2.vodafone.pt # (from /etc/ppp/peers/provider)
disconnect chat -s -v -f /etc/chatscripts/chat-disconnect # (from /etc/ppp/peers/provider)
nocrtscts # (from /etc/ppp/peers/provider)
modem # (from /etc/ppp/peers/provider)
asyncmap 0 # (from /etc/ppp/options)
lcp-echo-failure 4 # (from /etc/ppp/options)
lcp-echo-interval 30 # (from /etc/ppp/options)
hide-password # (from /etc/ppp/peers/provider)
novj # (from /etc/ppp/peers/provider)
novjccomp # (from /etc/ppp/peers/provider)
ipcp-accept-local # (from /etc/ppp/peers/provider)
ipcp-accept-remote # (from /etc/ppp/peers/provider)
ipparam 3gppp # (from /etc/ppp/peers/provider)
noipdefault # (from /etc/ppp/peers/provider)
ipcp-max-failure 30 # (from /etc/ppp/peers/provider)
defaultroute # (from /etc/ppp/peers/provider)
replacedefaultroute # (from /etc/ppp/peers/provider)
usepeerdns # (from /etc/ppp/peers/provider)
noccp # (from /etc/ppp/peers/provider)
noipx # (from /etc/ppp/options)
abort on (BUSY)
abort on (NO CARRIER)
abort on (NO DIALTONE)
abort on (ERROR)
abort on (NO ANSWER)
timeout set to 30 seconds
send (AT^M)
expect (OK)
^M
OK
-- got it
send (ATE0^M)
expect (OK)
^M
^M
OK
-- got it
send (ATI;+CSUB;+CSQ;+COPS?;+CGREG?;&D2^M)
expect (OK)
^M
^M
Quectel_Ltd^M
Quectel_M95^M
Revision: M95FAR02A08^M
^M
SubEdition:V03^M
^M
+CSQ: 31,0^M
^M
+COPS: 0^M
^M
+CGREG: 0,0^M
^M
OK
-- got it
send (AT+CGDCONT=1,"IP","net2.vodafone.pt",,0,0^M)
expect (OK)
^M
^M
+CME ERROR
-- failed
Failed (ERROR)
Script chat -s -v -f /etc/chatscripts/chat-connect -T net2.vodafone.pt finished (pid 1654), status = 0x7
Connect script failed
Edit:
Also, I’m not using any GPS antenna, as it should work without one, correct?