Questions tagged [mkr-gsm-1400]

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Arduino MKR GSM 1400: Can I tell from code if the power has tripped

Is there a way to tell if an Arduino MKR GSM 1400 has lost power and has to rely on the connected battery? Ideally, I'd like to do this without adding additional circuitry. Alternatively, can I ...
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28 views

Triggering a Sleep Wake-up Event using analog output from a triple axis accelerometer?

I am working on a project that uses a Arduino MKR GSM 1400 and a ADXL335 Accelerometer . I am having trouble setting a interrupt wake up event on one of the GSM's interrupt-capable pin due to the ...
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142 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 ...
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1answer
118 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 ...
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0answers
43 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 ?...
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1answer
155 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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2answers
453 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
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: ...