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Questions tagged [arduino-uno-wifi]

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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.

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I am trying to build a simple project to get data from a web server and display it, using an Arduino Uno R3 clone with integrated ESP8266 wifi. What I have so far: The ESP8266 attempts to connect to ...
Robb's user avatar
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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 ...
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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 ...
MelaNChoLy's user avatar
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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 ...
yahskA's user avatar
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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: ...
nieomylnieja's user avatar
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I have a ATMEGA328 with ESP826 (like this http://arduinolearning.com/hardware/atmega328-esp8266-arduino-board.php) and can successfully send information from the ATMEGA328 to the ESP826 via serial. I ...
user1505631's user avatar
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I uploaded the following to my UNO with WiFi: #include <SPI.h> #include <Wire.h> #include "Adafruit_CCS811.h" Adafruit_CCS811 ccs; // The air quality sensor String ...
user1505631's user avatar
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I'm trying hit some endpoints on the 8Base API with the Arduino Uno Wifi Rev2. I was able to get this API call to work with Postman, but I've had no luck once I convert it to my Arduino code. In ...
jobrien9's user avatar
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I have an Arduino Uno Wifi (Rev2) and I want to play a sound file. I found two libraries so far but neither of them work. The TMRpcm library (https://www.arduino.cc/reference/en/libraries/tmrpcm/) ...
ndrb's user avatar
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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 ...
Da Ro's user avatar
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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 ...
The Candy King's user avatar
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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 ...
Anas's user avatar
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I am completely baffled. When I wire the thermistor into my Nano, everything reads completely fine. Then when I switch to the Uno Wifi Rev 2, I get negative numbers -40 to -80 when I was reading 24 on ...
The Candy King's user avatar
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I have Arduino Uno (sender) and Arduino Uno Wifi rev 2 (receiver). I want to send the ping value to the other one via serial - jumper wires. Arduino Uno is using the newping example, and I want the ...
foxtrot22's user avatar
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I need some help :) Is it even doable? Is there anyone who wants to help me program it? My wish: I want to receive a iphone notification when 1 arduino analog input drop from 5 to 0 volt. Then (...
Joepl10's user avatar
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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 ...
Wind's user avatar
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I have a domain. It is hosted by GoDaddy. I need to connect that server and receive some data by executing PHP files. I am not sure about the components. Tutorials on internet describes how to control ...
Snefru Clone's user avatar
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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 ...
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I'm attempting to program Atmega4809 (Uno Wifi Rev2) via the ICSP pins on the board by connecting in this manner: The difference is that I have a Uno Wifi Rev2 on the right instead of a Uno R3. I've ...
nametable's user avatar
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As an off-Topic to my main question, regarding Robodyn's Uno+Wifi - it seems that Wifi does not work ( fail to connect and fail find any network ). Juraj advised to use External Antenna ( did not work ...
guyd's user avatar
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I'm building a person following shopping cart with Arduino for my final year project. The cart is supposed to be able to follow its user while shopping use of Bluetooth module or wifi module will be ...
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I am using different codes which set different values of baud rate through the Serial.begin() function. I have an Uno using Serial.begin(9600) connected to an ESP8266 ESP-01 module SoftwareSerial ...
Alucard's user avatar
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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 ...
sqz's user avatar
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So I want to have one persistent SSL connection to a cloud server (Azure IoT Hub) to upload telemetry and another SSL connection to a server to perform a simple GET request every 30 minutes. I've ...
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Arduino: 1.8.13 (Windows 10), Board: "Generic ESP8266 Module, 80 MHz, Flash, Legacy (new can return nullptr), All SSL ciphers (most compatible), dtr (aka nodemcu), 26 MHz, 40MHz, DOUT (compatible)...
Reghunaath A A's user avatar
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I'm using the Arduino Wifi Nina Library to connect an Arduino Uno Wifi Rev2 to wifi and then using the Arduino HTTP Client library to make HTTP post calls to the internet. To connect the Arduino to ...
Saqib Ali's user avatar
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Given an Arduino Uno Wifi Rev2 with this small U-blox NINA wifi module. All work great however after a long time (I can't be more exact but we talk here about weeks if not months), it suddenly ...
Daniel's user avatar
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I'm using the Arduino Wifi Nina Library to connect an Arduino Uno Wifi Rev2 to wifi and then using the Arduino HTTP Client library to make HTTP post calls to the internet. It is working. However when ...
Saqib Ali's user avatar
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4 answers
2k views

I'm playing with Over The Air (OTA) updates in my LoLin. I can make connections to my router and OTA updates seem to work well. I'm uncomfortable storing my WiFi router SSID and password unencrypted ...
KDM's user avatar
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2 answers
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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....
imkeVr's user avatar
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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 ...
imkeVr's user avatar
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Arduino Uno Wifi rev2 includes an ECC608 crypto accelerator chip. Even their documentation states "As for the WiFi connection, that's made secure with the new ECC608 crypto chip accelerator." My ...
Daniel's user avatar
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On Arduino Uno Wifi rev2 I want to create an SSL socket to my own SSL socket server implementation. The board can download a webpage with encryption (after I've installed the certificate into it of ...
Daniel's user avatar
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1 answer
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I just bought a Arduino Uni Wifi Rev. 2, with the itention of doing over the air uploads to the devices. By reading the official Gettings started with the Arduino Uno Wifi guide, I thought the ...
eivindml's user avatar
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I'm trying to use a MS5540C (digital pressure sensor) and the sample code has this line: TCCR1B = (TCCR1B & 0xF8) | 1; //generates the MCLK signal I'm a bit of a noob to the IoT but its not ...
Chris Catignani's user avatar
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I have been having a heck of a time getting my Arduino Uno Rev2 application to work as intended, which is to parse commands from multiple clients sending in ASCII-based commands over WiFi in order to ...
Big Owls's user avatar
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I am attempting to use an Arduino Uno WiFi Rev2 board to integrate some lonely data. I will use the NINA WiFi chipset and associated libraries to start a server that will periodically request and ...
Big Owls's user avatar
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1 answer
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I am trying to send measurements over UDP, but the function Udp.endPacket continuously fails. I use an Arduino Uno WiFi rev 2, WiFiNINA library version 1.4.0 and WiFiNINA firmware version 1.2.1 which ...
PeterD's user avatar
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My Uno WiFi Rev2 outputs on the serial monitor after ~30 min "no socket available". Until that point everything works just fine, my requests run as expected. I use the .flush() and .stop() commands, ...
mannaris's user avatar
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I currently have a project that uses a few Xbee S1 modules to report temperature measurements to a computer. I'm thinking about reworking the project to use the newer Arduino Uno WiFi R2 boards. Is ...
GentlemanS's user avatar
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709 views

New to Arduino and was hoping to figure this out. I am working with a bill acceptor and getting the value once you insert the money. The code works fine with an older Arduino, but I am using Arduino ...
Braley's user avatar
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1 vote
2 answers
2k views

I have been trying to use the WifiNINA library to access the JSON output from the following API using the WifiNINA library and the Arduino Wifi Rev2. This is the code that I have been using (it is an ...
Jackson V's user avatar
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2 votes
1 answer
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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 ...
Luke Jones's user avatar
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1 vote
1 answer
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I'm new to wireless communication on Arduinos and doing research for a project. I'm looking at the Arduino Leonardo (which is like the Uno) which via its micro USB port can be automatically recognized ...
Spectraljump's user avatar
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I'm using an Arduno UNO WiFi Rev 2 and trying to connect to a database, but it does not connect nor shows any errors. The arduino connects successfully to WiFi and pinging google works fine. But when ...
user3626356's user avatar
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2 votes
1 answer
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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/...
Erdal G.'s user avatar
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