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Questions tagged [mkr1000]

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23 views

Multiple Interrupt Pins Generates Wrong Pulses

On MKR WAN 1300 board I added pulldown resistors to 0,1,4,5,6,7,8 pins to count pulses.I can catch interrupts, but sometimes pulses occur on other pins even though they are not touched. For example, ...
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0answers
25 views

MKR 1000 not found in ports when MKR IMU Shield is connected

I am trying to connect my MKR IMU Shield to my MKR1000 by placing the IMU shield in the MKR1000. When I do this, however, the Arduino IDE and Simulink are unable to find the port that my Arduino is ...
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1answer
38 views

How to use more than 2 I2S microphones on MKR Zero?

I am trying to build a portable device that can record from at least 3 microphones. I had a look and saw I2S is good for audio so I bought an Arduino MKR Zero to read them with. I was wondering how to ...
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26 views

Arduino MKR1000 crashes when adding wire.h library

I am trying to use the i2c library wire.h with my Arduino MKR1000. I can compile and upload the simple test program but after uploading, the Arduino resets and doesn't come back (won't connect to the ...
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0answers
26 views

MKR1000 disconnecting when hooked up to RGB 16x32 LED Matrix

This tutorial is from 2012, before the MKR1000 existed. The tutorial says the 16x32 LED Matrix panel is compatible with the Arduino Zero, which the MKR1000 is supposedly related to, so I'm thinking I ...
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0answers
44 views

Arduino with external Wi-Fi antenna?

I need to create a project where I need to send data via Wi-Fi using an Arduino. I need the Arduino to have a U.FL connector to place an external Wi-Fi antenna (I can't use the MKR1000 with ...
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1answer
108 views

Is it possible to do an OTA update using a GitHub link

I need to be able to download software updates through the internet without having my MKR1000 plugged in. Either that or have new code being pushed from my server (C++) to my MKR1000, and then ...
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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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0answers
20 views

Can't connect to the server

I am working on a specific project that requires a database. I have done the 'connection' and the "write" of data using a PHP file. I have even reconfigured everything so it would be possible to ...
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1answer
245 views

MKR1000 and DS18B20 temperature sensor

I am new to Arduino and electronics in general and I can't get my MKR1000 to read correct data from a DS18B20 temperature sensor. Here is the tutorial I followed. The issue is: I always get the same ...
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1answer
44 views

Loops fail after ~5 minutes when making two API calls every 10 seconds using WiFi client

I am running into an issue with a loop call on an Arduino MKR1000. I have tried the solutions suggested in this question and it usually works for 5 minutes and then collapses. I am trying to make two ...
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2answers
47 views

How can I calculate approximate cycles per second from pulsed pin on Arduino MKR Zero?

The relevant tech specs for a MKR Zero are: 32.768 kHz (RTC*), 48 MHz *Real-Time Clock What I'm curious about is how I might do an approximate calculation of cycles per second from operations. ...
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1answer
297 views

Build an improved GSM antenna for arduino mkr gsm 1400

I want to use an Arduino MKR GSM 1400 in my area wich has a bad connectivity on mobile internet. On my phone it's very weak and if i drive to the next village it works sometimes on the arduino with ...
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4answers
841 views

Use 5V SD-Adapter on 3.3V System

I want to use a Catalex Micro SD Card Adapter in Combination with my Arduino MKR GSM 1400. The problem is, that the Arduino uses 3.3V to operate but the SD Adapter needs 5V (or at least 4.5V) to ...
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2answers
123 views

Parse UNIX-time from char[]

I want to parse a large number to sync time on my arduino. For this i send it a string with the current time in Unix time format wich looks somethink like this: 1535441277 For this I just call a ...
2
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1answer
378 views

Use SD-Card module in combination with MKR GSM 1400

I have bought a SD Module with the following Pin-Names: VCC,GND,MOSO,MOSI,CS,SCK. I've found many tutorials on how to use it with the Arduino Uno. But haven't found any on how to wire it with the MKR ...
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1answer
554 views

POST request on Arduino MKR1400 GSM not working

Im trying to send a POST request from the Arduino MKR1400 GSM board to a server with a database. I've tested the server using Postman (https://www.getpostman.com/) and it handles the POST request ...
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0answers
69 views

Motor unexpectedly moving at reset

I'm playing with the standard L298N motor board and Arduino MKR 1000. However something strange happens: when I upload a new firmware and when I turn on the Arduino power supply (every time Arduino ...
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1answer
373 views

Arduino MKR Zero problem with new UART comunication

I'm currently using an Arduino MKR Zero board and I need to add a new communication because the Serial1 on pins 13 and 14 is already used by another device. I've followed this tutorial from Arduino ...
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1answer
274 views

Camera on mkr1000 or nodemcu 0.9

My question is: it is possible to connect camera on an Arduino/Genuino mkr1000 or to a NodeMCU 0.9? If yes which one? As far as I now ArduCam OV2640 has ported a library for ESP8266 (that is the ...
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1answer
790 views

Arduino MKR1000 as Access Point

I want to turn my Arduino MKR1000 into an Access Point. My code is the following: #include <SPI.h> #include <WiFi101.h> #define PubNub_BASE_CLIENT WiFiClient #include <PubNub.h> ...
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1answer
48 views

MKR1000 - Connecting to Pubnub

I don't know if it's a stupid question but I need some help. I am trying to follow this tutorial and I want to connect my arduino to PubNub. In the tutorial it says that I have to 'open PubNub.h and ...
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1answer
97 views

Changing outputs infinitely for no reason

Im a student and working on a arduino project for IoT competition and me and my team have built a house and I made this code below. For some reason when I upload it to my Arduino MKR1000 it constantly ...
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0answers
290 views

just get my mkr1000 in macOS Sierra 10.13 and no way to connect

I have connected the device via USB, downloaded the latest version of Arduino IDE (1.8.5) installed (automatically offered) the drivers for the mkr, and there's nothing in the serial port selector ...
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1answer
111 views

How do I lower clock speed for MKR1000? [closed]

According to data sheets, the MKR1000 runs a SAMD21 Cortex-M0+ processor at 48 MHz. For a project I need to drop that down to 16MHz to get some accurate timing in us. How can I do this? Most of the ...
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2answers
690 views

SSID was not declared in this scope

so I am new to arduino and coding in general, I am trying to use the arduino to remotely survey plants, I am using this guide: https://create.arduino.cc/projecthub/arduino/plant-communicator-7ea06f. ...
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1answer
1k views

Arduino MKR1000 and DHT11 not giving correct output for temperature and humidity

I've been trying to follow this tutorial to wire my Arduino MKR1000 to a DHT11 temperature and humidity sensor, but my output consists of either 0's or 255's for both values. I've tried several ...
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1answer
280 views

How to change IIC (I2C) clock rate on MKR1000

The IIC clock defaults to 100kb, need to increase it to ~200kb. I've tried: changing the constant TWI_CLOCK and rebuilding Wire.cpp calling initMasterWIRE(200000) after Wire.begin(). I'm using a ...
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1answer
527 views

WiFiSSLClient will not connect to servers with LetsEncrypt certificates

I'm trying to send data from an Arduino program to an app running on Google App Engine but WiFiSSLClient.connect() always returns false. This is despite the server being up and running; the code ...
2
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1answer
442 views

WiFi101 Client HTTP POST fails after 3rd request

I would really appreciate any help, my home project has been put on hold for weeks as I haven't been able to figure this out. In a nutshell, I'm connecting to my wifi network, measuring temperature ...
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2answers
2k views

How to use multiple SPI slaves in MKR1000 if it doesn't have Slave Select (SS/CS) pin?

I'm using a Genuino MKR1000 and I want to use the SPI interface, which I've seen that there is no Slave Select (SS)/Chip Select(CS) pin usage. How can I use the SPI interface with multiple slaves ...
2
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1answer
710 views

Making two Arduinos/MKR1000 communicate

I am trying to create a project in my free time just for a bit of fun - it consists of two MKR1000 (one acting as a web server connected to one laptop, and the other acting as a web client connected ...
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1answer
316 views

How to control MKR1000 from outside your local network

I want to send an HTTP command to MKR1000 from outside my local network. So far, all the googled resources point to getting the local IP (example 192.168.0.10) of MKR1000 and sending a command like ...
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0answers
469 views

How to attach Arduino MKR1000 to a shield meant for Arduino UNO?

I have an Arduino MKR1000 and need to interface it to an Adafruit Music Maker shield, which has pinouts for an Arduino UNO. Maybe I'll have to attach female headers, and then jumper pins over. Which ...
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1answer
180 views

where does access point's IP address come from for sketch AP_SimpleWebServer.ino in Github WiFi101 examples

I don't understand where the access point's IP comes from. Sketch uses WiFi.beginAP( ssid ) ..to start the AP. Then, printWifiStatus() gets the access point's IP with: IPAddress ip = WiFi.localIP();...
2
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0answers
311 views

Is Arduino WiFi101 library fully compatible with Arduino MKR1000 with WiFi HW?

Will all the classes in this library work with the MKR1000 with wifi hardware? The guide mentions "wifi shield". So, does the library work exactly the same with the Arduino MKR100 (with the onboard ...
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1answer
806 views

Powering Down Arduino MKR1000

The MKR1000 is still pretty new and I'm having a hard time getting good information on it. I'm using the Arduino IDE but don't find any functions to sleep the MKR1000. Most libraries I encounter are ...
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3answers
789 views

millis() function always returns same value

I'm trying to program an Arduino MKR1000 and I am using the millis() function to emulate a traditional timer. The problem is that any call to millis() inside the debounceTimer() function returns the ...
0
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1answer
510 views

WebSocket client for ArduinoHttpClient conditional if with readString() incoming data buffer

I'm having issues implementing a web socket on the Arduino/Genuino to procress a string received and do something respectively. I'm using SimpleWebSocket example, edited for my purpose, from the ...
2
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0answers
364 views

Arduino WebSocket Client “Connection Failed”

I use this code to connect Arduino MKR1000 to API through Web Socket, but it didn't connect to the server. Can any one help me to correct the code. This is the Arduino code: #include "Arduino.h" #...