Questions tagged [blynk]
IoT platform to connect your devices to the cloud, design apps to control them, and manage your deployed products at scale.
12
questions with no upvoted or accepted answers
1
vote
0answers
40 views
Maximum baud rate for sending a byte of data via SoftwareSerial from master Arduino UNO to slave Arduino UNO
I am trying to read data from a Blynk widget via ESP8266 and Arduino UNO and trying to send it to another slave Arduino UNO. But, the problem is the data is taking some time to reach to the slave ...
1
vote
0answers
35 views
Converting Arduino code to Node MCU code
I'm doing a project on controlling my house appliances with Blynk app and a ir receiver.So basically i can control my lights and fans with The Blynk app and an IR remote as the one used for TV.
So i ...
1
vote
0answers
88 views
Read from Blynk terminal number to arduino
I have a problem in sending numbers from blynk terminal to arduino serial monitor. When I send any number from blynk terminal the arduino always getting 1. How can I get any number please help me. ...
1
vote
1answer
124 views
How I can send data information without work WiFi to LCD?
Hi everyone I am beginning learn coding and the second language English. I have small project I use Arduino uno , esp8266 , dht11 , lcd I2C and use blynk app in my project I have the code and work ...
1
vote
0answers
235 views
Esp32(Arduino Core) + Blynk Wifi Connection Problems
So I am making a football playing robot which consists of 3 servo motors. Currently,i am only checking only a single servo(myservoKicker)which is operated via button in the blynk app and trying to ...
1
vote
0answers
549 views
Blynk.Begin(auth, ssid, pass) causing watchdog reset
I am trying to follow this tutorial and I keep hitting a problem repeatedly. I checked in my code that every time it hits the line Blynk.begin(auth, ssid, pass);, the serial monitor shows me that ...
1
vote
0answers
1k views
Using 2 serial ports on NodeMCU
I am using a NodeMCU ESP 12E board which will be programmed using the Arduino IDE. I intend to use it to send GPS data to the Blynk app server. I also want to interface a Bluetooth module HC-05 to the ...
1
vote
0answers
300 views
Arduino Pro mini does not wake up after a few interrupts from DS3231
I hope someone can help me. I'm building a GSM water level meter that runs on solar power, using an Arduino Pro mini, a DS3231 RTC, a JSN-SR04T - ULTRASONIC SENSOR, and a SIM800L along with a DFrobot ...
1
vote
1answer
197 views
Blynk app, DotStar bluetooth control code help
This is my setup:
Arduino Mega;
HM-10 bluetooth module (bought off ebay, so not sure if genuine but works);
Adafruit Dotstar addressable LED strip;
iOS Blynk app;
Hardware-wise, everything is ...
0
votes
0answers
61 views
Why Blynk code doesn't have anything in the loop except for one statement
When I was trying to use the Blynk app for the first time I got code from their website that had only one statement in the loop.
How does the code determine what to do when we press a button in the ...
0
votes
1answer
79 views
How to override automatic control in Blynk app?
I am a beginner to Blynk, and have successfully built a simple water temperature control project. It consists of ESP32, a plug-in water heater, and an AC relay board. The ESP32 controls the relay ...
0
votes
0answers
322 views
Device is not online yet while trying to connect Arduino uno (with USB) to Blynk App
I am trying to run my Arduino Uno using Blynk app.
I have Arduino IDE , Blynk library on the same folder within the Arduino library folder, changed the AuthCode using the one provided , checked all ...
