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.
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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 ...
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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 ...
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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 ...
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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: ...
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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 ...
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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 ...
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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 ...
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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/) ...
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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 ...
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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 ...
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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 ...
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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 ...
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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 ...
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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 (...
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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 ...
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