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Questions tagged [mkr-gsm-1400]

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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 ...
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1answer
27 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 ...
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17 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 ...
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44 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 ...
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0answers
79 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 ...
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136 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://...
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0answers
93 views

How does the MKR1010 manage its power?

I recently started this project with a MKR1010, However, I found that when plugging in to the USB port from the MKR to my laptop, everything works fine. But when I start using external power, using a ...
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2answers
214 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 ...
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1answer
630 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: ...