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.
45
questions
1
vote
1
answer
381
views
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 ...
- 11
2
votes
0
answers
110
views
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 ...
- 21
1
vote
0
answers
76
views
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 ...
- 11
1
vote
1
answer
1k
views
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: ...
- 11
-1
votes
2
answers
210
views
Read SD card on ATMEGA328 from ESP826
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 ...
- 121
1
vote
1
answer
286
views
Setup loops: never enters loop - restarting?
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 ...
- 121
-2
votes
1
answer
150
views
Connect to 8Base API with TLS on Arduino Uno Wifi Rev2
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 ...
- 1
1
vote
1
answer
152
views
Playing a sound file with Arduino Uno Wifi
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/) ...
- 21
1
vote
0
answers
265
views
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 ...
- 41
2
votes
0
answers
792
views
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 ...
2
votes
3
answers
1k
views
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 ...
- 21
1
vote
1
answer
50
views
Thermistor returns correct value on Arduino Nano, completely fails on Arduino Uno Wifi Rev 2?
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 ...
1
vote
1
answer
90
views
Arduino recieve sensor data from other arduino SPI
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 ...
- 121
1
vote
1
answer
268
views
Arduino analog input to iphone notification
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 (...
- 11
2
votes
1
answer
212
views
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 ...
- 31
0
votes
1
answer
178
views
Connecting Web Server in GoDaddy Hosting
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 ...
- 55
2
votes
1
answer
416
views
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 ...
- 55
1
vote
1
answer
256
views
Uno Wifi Rev2 Programming via Uno R3 ArduinoISP
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 ...
- 31
1
vote
1
answer
802
views
ESP8266 RF Calibration
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 ...
- 993
-2
votes
1
answer
37
views
Selection of module for person following shopping cart
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 ...
0
votes
1
answer
348
views
Monitor two baud rates
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 ...
- 113
2
votes
1
answer
469
views
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 ...
- 123
1
vote
0
answers
117
views
Two SSL connections at the same time on Uno WiFi rev 2
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 ...
1
vote
1
answer
5k
views
I'm getting an error while uploading my code to esp8266 via an arduino (FatalError('Failed to connect to %s: %s' % (self.CHIP_NAME, last_error)))
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)...
- 121
0
votes
3
answers
1k
views
Can I get around extremely long time to setup WIFI connection WPA2 Personal?
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 ...
- 83
0
votes
1
answer
870
views
Uno Wifi rev2 - after long time it disconnects
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 ...
- 141
0
votes
1
answer
699
views
Solution needed for sending HTTPs requests from multiple Arduino units in the field
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 ...
- 83
0
votes
4
answers
2k
views
MD5 Password in Sketch
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 ...
- 105
2
votes
2
answers
521
views
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....
- 161
2
votes
0
answers
175
views
Arduino uno wifi rev2 error compiling sketch to board [duplicate]
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 ...
- 161
1
vote
1
answer
1k
views
What is ECC608 crypto chip accelerator used for in Arduino Uno Wifi rev2?
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 ...
- 141
1
vote
0
answers
213
views
Uno Wifi rev2 - SSL socket connection
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 ...
- 141
1
vote
1
answer
1k
views
Make OTA work with Arduino Uno Wifi
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 ...
- 111
0
votes
1
answer
2k
views
'TCCR1B' was not declared in this scope
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 ...
- 123
1
vote
0
answers
153
views
Problem with multi-client ASCII text parser (TCP)
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 ...
- 23
0
votes
1
answer
76
views
strcat parameters throwing pointer errors in my tcp server / parser application
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 ...
- 23
0
votes
1
answer
1k
views
Udp.endPacket fails
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 ...
- 1
1
vote
0
answers
204
views
Arduino Uno WiFi Rev2 "no socket available"
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, ...
- 11
1
vote
0
answers
56
views
Arduino Uno Wifi R2 Mesh Network
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 ...
- 11
1
vote
0
answers
591
views
invalid type argument of unary '*' (have 'uint8_t {aka unsigned char}')
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 ...
- 61
1
vote
2
answers
2k
views
Arduino WiFi Rev2 JSON String
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 ...
- 13
2
votes
1
answer
536
views
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 ...
- 21
1
vote
1
answer
1k
views
Can an Arduino (Leonardo) be recognized via Bluetooth as a mouse/keyboard?
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 ...
- 113
1
vote
0
answers
405
views
Arduino UNO WIFI Rev 2 - MySQL trouble
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 ...
- 11
2
votes
1
answer
1k
views
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/...
- 125