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Questions tagged [blynk]

44 questions
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Is there a method to read the state of a virtual pin in the BlynkLib library for MicroPython?

I am using MicroPython on a ESP32 using the Blynk IoT platform to control a stepper motor. However, I want the stepper motor to stop running when my program detects that the state of the virtual pin that I am using to control the motor changes from…
Hussein Khodor
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Soft WDT Error when trying to connect to WIFI and Blynk with ESP8266

When running my code, the board resets when trying to connect with Bylnk and my phone's hotspot. #include #include #include "Arduino.h" #define BLYNK_TEMPLATE_ID "TMPLyQ2Ub28b" #define BLYNK_DEVICE_NAME…
Michael Ahn
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Use 2 condition at the same time in flow chart

I have 2 functions in my code. BLYNK_WRITE(V1) checks if there is the signal from Blynk server. loop() check if there is the signal from RFID. Both will lead to the same resault. Can I set 2 conditions at the same time in flow chat as the below…
Haru
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fatal error: BlynkSimpleEsp32.h: No such file or directory

I just want to know if I'm doing something wrong since I'm new to all this concepts. If there is anything else that you'll like me to add just let me know. #include when I try to verify my code it says fatal error:…
sumanth
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How do i send data from my esp8266 light sensor to blynk?

I am trying to know whether the lights have tripped using a light sensor to detect light intensity. However, i do not know how to upload my data onto blynk, as i am new to blynk and new to arduino as well. Below is my code. I tried using a telegram…
Tan Yi Chen
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Blynk Button is not getting actuated

I, a complete beginner, was doing a project with ESP8266 where I interfaced with a relay and two sensors. The sensors are working fine but the relay is not getting actuated by the Blynk button when I press it. Below is the code where I got proper…
dEEEp
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command in if else loop repeat when I release button

In blynk I create a virtual pin v4 and v5 and the minimum and maximum value of both is 0 and 1, In dashboard I have two push button,the first one link to v4 and the second one link to v5, and I use this code int n; BLYNK_WRITE(V4) { int hit…
bqhon
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Blynk not turning the LED ON on NodeMCU

I have connected an LED to my NodeMCU in the following way: Circuit Diagram and have successfully controlled it using the serial port of my laptop. Now I want to control it remotely through Wifi and Blynk App on my phone. I have added all the…
SHUBHANGI SHARMA
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Arduino IDE falied to connect Blynk USB

Im using Arduino IDE to connect blink cloud with my Smartphone, but when I run the tools> Blynk > Run USB script I receive the flowing message: socat[11716] E SSL_connect(): error:1416F086:SSL routines:tls_process_server_certificate:certificate…
Higor Tavares
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Arduino - millis() instead of delay() not working

I am an absolute beginner to Arduino, but I am currently working on an IoT project. The goal is to see if temperature and humidity are changing drasticaly over a few minutes. I am working with an ESP 8266, a DHT11 and the BLYNK App. I have the…
Nicole
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So i cant figure out how to send my GPS data to the IFTTT server

So im working on a project making a safety and monitoring system for a bike and im sending the monitored data to Blynk which is working perfectly. Im trying to send an SMS when a value is triggered ,I recieve the SMS through Clicksend but i cant…
KAIN ARTZ
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How I can send data information without work WiFi?

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 code and but I have question How I can get the information data from…
AbuWeSaM
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Raspberry pi Blynk LED not responding

I am trying to control a LED with Blynk but it doesn't seem to work. I have checked the connections and LED with a simple blinking program, everything works. I run the blynk program, the app successfully connected and I am able to print the status…
Nicholas chua
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Real Time Stepper Motors Control using ESP8266 and Blynk app

I wanted to control 2 Stepper Motors for running a robot using the joystick of Blynk App and NodeMCU/ESP8266. But when I searched for the codes of real time controlling of Stepper Motors online I didn't get much code and most of them were not real…
Ansh Goel
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Blynk notification with ultrasonic sensor

This is my code which actually send blynk notification when distance is greater than 150. but its output is very weird. It again and again run setup function instead of only once. The esp8266 device goes online and offline and then again online due…
HinaKhadim
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