Questions tagged [mkr-gsm-1400]

The tag has no usage guidance.

Filter by
Sorted by
Tagged with
0
votes
0answers
74 views

MKR GSM 1400 doesn't work when I connect the battery

I'm having problems with my MKR GSM 1400 when I connect a battery. My project works flawlessly when connected to the USB with no battery. But for some reason(s) unknown to me, as soon as the battery ...
0
votes
1answer
82 views

half duplex for Atmel SAMD21

I'm using Arduino MKR GSM 1400. I know this board uses Atmel SAMD21 and SAMD21 support half duplex (USART with full-duplex and single-wire half-duplex configuration). My question is, How Can I ...
0
votes
0answers
30 views

Arduino MKR QoS 1 logging with ArduinoMqttClient

I am collecting data with Arduino MKR GSM 1400 and sending data to Azure Cloud (IOT HUB). Currently I use ArduinoMqttClient ArduinoMqttClient My question is, how to ensure both parties accepted QoS1 ?...
0
votes
0answers
106 views

Arduino MKR 1400 Charging Circuit

I'm needing to build a temperature monitoring system that will be deployed to a remote location with no electricity. It will need to run on batteries and self charge via solar panel and send data via ...
0
votes
1answer
101 views

MKR GSM 1400 Works only when connected to computer

My MKR GSM 1400 works fine when connected to a computer (powered USB) and after opening a serial connection to it. It does not when I plug it into a power supply. My power supply is a 5V 3A with a ...
0
votes
0answers
21 views

Receive Data On Arduino In Remote Location

My project is an Arduino with a sim card that's connected to a battery that acts as a switch however the Arduino's location is remote and I'm not sure if there is data coverage. The data I am sending ...
0
votes
0answers
94 views

What the best way to connect an Arduino to 3G/4G

I want to make a connection to the mobile data network with an Arduino in an area with low signal quality. For this I already bought a better antenna and I am using a simcard wich is open to every ...
0
votes
0answers
272 views

Why is my Arduino MKR GSM 1400 running unstable after using it for a while?

I tried using a Arduino MKR GSM 1400 with the TinyGSM library. When I compiled it for the first time it even worked without an additional battery and just the antenna wich really suprised me. But now ...
0
votes
0answers
251 views

Arduino MKR GSM 1400 - inaccurate location (latitude/longitude)

Situation/Context: a) I'm using MKR GSM 1400 b) In an urban area in the US with good network coverage. c) As SIM card I tested both Twilio and Hologram. d) As antenna I am using this one https://...
0
votes
2answers
361 views

Arduino MKR GSM 1400 SSL client example fails to connect

I am using the GsmSSLWebClient example which comes with the MKRGSM library. The original example works just fine, I get the arduino ascii logo. But when I change the URL the arduino doesn't get any ...
0
votes
1answer
1k views

Multiple definition error when linking firmware.elf

I just can't wrap my head around on how to properly work with multiple files. My code has been getting quite big so I decided to split all the classes into one file each. So I'm left with 6 files: ...