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Questions tagged [arduino-uno-wifi]

Arduino Uno WiFi R2 It's basically an Arduino Uno Rev3s with a 8-bit AVR microprocessor from Microchip, and an onboard IMU (Inertial Measurement Unit). As for the WiFi connection, that's made secure with the new ECC608 crypto chip accelerator.

The Arduino Uno WiFi is functionally the same as the Arduino Uno Rev3, but with the addition of WiFi and some other enhancements. It incorporates a brand new 8-bit microprocessor from Microchip and has an onboard IMU (Inertial Measurement Unit).

The Wi-Fi Module is a self-contained SoC with integrated TCP/IP protocol stack that can provide access to a Wi-Fi network, or act as an access point.

The Arduino Uno WiFi has 14 digital input/output pins—5 can be used as PWM outputs with Pin 11 that is not PWM as on the UNO Rev3 —6 analog inputs, a USB connection, a power jack, an ICSP header, and a reset button. It contains everything needed to support the microcontroller. Simply connect it to a computer with a USB cable or power it with an AC adapter or battery to get started.

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Grove LCD display not working with arduino rev 2 wifi (Unknown error at address 0x3E)

I am trying to connect Grove 16x2 LCD (White on Blue) to my Arduino uno rev 2 wifi. So far, I've tried hd44780 library's ioClass examples, but nothing worked. I've then decided to scan ports and when LCD was connected to rev 2 SDA/SCL pins I've got…
MelaNChoLy
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Receiving "ERROR: Timeout waiting for client." when connecting to a single table in database - mysql connector on Arduino Uno Wifi Rev2

I have a MariaDb database on a local server and I am using it to store data from various Arduino's around my shop. The database currently has 12 tables. I also have another Arduino Uno Wifi Rev2 that is able to connect to its two respective tables;…
The Candy King
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Send values from Arduino Uno to Wemos D1 R1

I have a weather project in which I have to measure the temperature and humidity (DHT22 sensor), the pressure, and other things, and then show them on a local web page (using a Wemos D1 R1) in either my phone or PC (I have both an Arduino Uno and a…
Anas
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Arduino Wifi Rev2, bug when reading PWM duty cycle value on pin 6

I am trying to read the PWM duty cycle set for pin 6 on the Arduino Wifi Rev2. By default, the timer used is TCB0, used in 8-bit PWM mode. The 16-bit Compare channel CCMP is used as two 8-bit registers, the lowest byte CCMPL is for the period, while…
Wind
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Run method every hour

I have a method. I need to trigger it every hour (cron job). I mean: 10.00 p.m -> Trigger 11.00 p.m -> Trigger 12.00 p.m ->Trigger ... ... Card: Arduino Uno + Wifi Shield. Draft Code void setup() { } void onTimeChanged() { …
Snefru Clone
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Run function concurrent to server.available()

I have a Arduino UNO WiFi Rev2 board that runs WiFiServer serving as a web server. The server listens and accepts clients using server.available(). I also want a loop that controls a servo in concurrent of the server. I looked at ArduinoThread and…
sqz
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Arduino uno wifi rev2 stuck inside loop

It might be a stupid question but I can't figure it out. While running the code below. I want to open the box when the code matches the code in API. This all works. I can even close the box afterwords. But then I am stuck inside my loop. after the…
imkeVr
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Arduino uno wifi rev2 error compiling sketch to board

I'm having an irritating situation with my Arduino Uno wifi rev2 board. I made an installation with an LCD, keypad and little servo motor. I first wrote the code for my regular Arduino Uno and everything worked fine. Now I migrated my installation…
imkeVr
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Reading Multiple RFID tags / Reading and ignoring/holding the tag

I'm currently doing a project where ideally I will have multiple objects with RFID tags on them that are placed on top of a Adafruit PN532 RFID Shield connected to a Arduino Uno Wifi Rev 2. The idea is that once a button is pressed the RFID reader…
Luke Jones
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Cannot compile code from Arduino WIFI shield example

I'm trying to launch the piece of code in this Wifi example: https://www.arduino.cc/en/Reference/WiFiConfig via Arduino.cc online editor, but I'm getting those errors: /home/ubuntu/opt/libraries/latest/wifinina_1_2_0/src/utility/spi_drv.cpp:87:24:…
Erdal G.
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Problem with using PubSubClient, the "callback" function doesn't seem to work correctly

I have a program that communicate between a esp8266 and a atmega328 using Serial, the esp8266 will connect to a MQTT server running on local network, and publish/subscribe to some topics. In the callback function for the subscribing, it will send an…
J. C. Stark
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Why won't IP mode change to 1 in ESP01 using the AT commands?

I was trying to send some data to a webpage using an Arduino Uno R3 connected to an ESP01. I simply uploaded the BareMinimum and started sending AT commands through the Serial Monitor. It worked fine for the first time, but now its IPMODE is stuck…
yahskA
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avrdude: usbdev_open(): cannot open device: Permission denied

I'm trying to upload anything to my Arduino Uno Wifi Rev2, I'm on Arch Linux, but I'm failing with the following error be it via IDEv2 or arduino-cli: avrdude: usbdev_open(): cannot open device: Permission denied avrdude: jtag3_open_common(): Did…
nieomylnieja
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Setup loops: never enters loop - restarting?

I uploaded the following to my UNO with WiFi: #include #include #include "Adafruit_CCS811.h" Adafruit_CCS811 ccs; // The air quality sensor String Dataline = ""; void setup() { Wire.begin(); Serial.begin(115200);…
user1505631
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Connect ESP8266 with Android Studio App

Hey guys I have ESP8266 and want to remote control a sailboat with it. Till now it works fine but how is it possible to send continuous data between the Arduino/ESP8266 and my smartphone? If you need any further information just add a…
Da Ro
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