When I try to send a SMS the MKR GSM 1400 hangs with the example code. Same thing with every code which calls gsmAccess.beginn() I tried so far.
If I switch on the debug mode with
GSM gsmAccess(true);
I get the output as can be seen in the attachment. I tried two different sim cards, basically with the same result. The only difference is, the number of times the +CREG: 0,0 entries are repeated.
The antenna is attached. I tried with and without the LiPo, with and without a 5V Vin voltage.
Any ideas?
gsmAccessDebug.txt (2.25 KB)
Hello,
I can not connect to GSM with the Board.
Sim from "Things Mobile" APN: "TM" no PIN. The card words with a Board from MediaTek.
I use an antenna from Hologram Dash, which has the same u-blox chip on it. 2000mAh battery is connected
I tried some example sketches and have inserted:
MODEM.debug();
Everytime the data on serial port ends with:
+UMWI: 0,4
AT+CREG?
+CREG: 0,0
OK
AT+CREG?
+CREG: 0,0
OK
AT+CREG?
+CREG: 0,0
OK
AT+CREG?
+CREG: 0,0
OK
AT+CREG?
+CREG: 0,0
OK
AT+CREG?
+CREG: 0,0
OK
AT+CREG?
+CREG: 0,0
OK
AT+CREG?
+CREG: 0,0
OK
Then nothing more happens.
This is the result of example Sketch "GPRSUdpNtpClient"
can someone help?
serial port.txt (767 Bytes)
arduino_secrets.h (226 Bytes)
GPRSUdpNtpClient.ino (5.18 KB)
Hi @tbartels,
Seems like a power issue to me, was the lipo battery you connected charged? What state was the charge LED in?