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Questions tagged [blynk]

44 questions
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want to change the program coded for push button to a normal switchbutton

So basically, i am working on a Feedback system for Home automation ,which updates the state of the physical button connected to your board onto the Blynk app, so that you can control your lights from both - manually and through the app.I am using…
TekTron
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I want to connect two yf-s201 Waterflow sensors, one as inflow and other as a outflow using Nodemcu & blynk

This is mostly a copy-paste of the code I found on Google, I want to make a project using 2 waterflow sensors in which inflow() which shows how many liters i have taken in and outflow() which shows how many liters flown out. This is how far ive…
fuse
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TCS34725 stopped after 2 months

Currently i'm working on a project where i need to monitor some sensor. One of the sensor I'm using is TCS34725 RGBC light sensor. Using Blynk, i log the data to a database and display it on a browser dashboard and Blynk app. After let it run of 2…
HollowLord
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GPS Communication with Arduino

I have been actively trying to connect the 'Ultimate Breakout GPS v3' with an Ardunio UNO & have the BLYNK application running at the same time. I have a fully functional GPS module working in its own sketch and I also have a fully functional BLYNK…
EBELL
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How to convert 'Blynk Code with NodeMCU' to 'Blynk Code with ArduinoUno'

I'll ask for your help. The code below is a part of the source code that operates on the NodeMCU. #define DHTPIN 12 //temp&humi sensor pin setting, GPIO12, D6 #define M1 5 //motor pin setting, GPIO5, D1 #define M2 4 //motor pin setting, GPIO4, D2…
ellemedit
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Is the pigpio install script corrupt?

Im making a doorlock using a raspberry pi, and blynk. When i try to do sudo npm install in the directory, I get this: "npm ERR! Failed at the pigpio@0.4.0 install script. npm ERR! This is probably not a problem with npm. There is likely additional…
Espen Halsen
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Esp8266 DHT11 Humidity & Temperature but Failed to read from DHT sensor

Help please I'm trying to get the sensor values from DHT11 Humidity & Temperature Sensor but the Esp8266 is connecting to internet but is not reading the value from the sensor. I'm using Blynk to display the sensor value this is what appears in my…
Luis Avila
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Blynk & Raspberry PI

I followed this guide to get my Raspi and Blynk connected : http://help.blynk.cc/how-to-connect-different-hardware-with-blynk/raspberry-pi/raspberry-pi-and-blynk . However, when I try to turn on my LED from the app I get the following error: No…
Simona Reti
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Arduino Uno + ESP8266 12E + Blynk + Relay

I started adventure with arduino and programming 2 months ago.So, I am new in this topics. Until now I realized few projects including Blynk connected with arduino. The last one was similar to one described in topic but I used the ENC28j60 instead…
Hiorii
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Library error when I run the code on Arduino IDE

I've got the folllowing errors: In file included from C:\Users\Lenovo\OneDrive\Documents\Arduino\libraries\Blynk\src/Blynk/BlynkApi.h:37:0, from C:\Users\Lenovo\OneDrive\Documents\Arduino\libraries\Blynk\src/BlynkApiArduino.h:14, from…
David Bota
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Can't get ws2812b SMD LED to light up with NodeMCU using Blynk and FastLED

Wiring Diagram: Sorry for the lame diagram, I am new to this. I have a 5V input with 2.2A (checked using multimeter), with my data pin wired inline with a 220Ω resistor. I'm able to successfully connect to my WiFi network and Blynk's cloud server,…
Joe Howard
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How to return value as an integer

This code print value as: ['38'] ['25'] ['57'] ['61'] ['73'] etc... How do I make it return value as an integer? Like this: 38 25 57 61 73 import BlynkLib # Initialize Blynk blynk = BlynkLib.Blynk('xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx') #…
Pavol Bujna
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Blynk protocols That used for Arduino

Is the blynk platform takes the MQTT protocol ? for communication from the Arduino what is the protocols it used for blynk platform ?
Rose
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How do I turn on and off a solenoid every x days using ESP32 and Blynk?

I am building a sprinkler system using blynk and ESP32 wifi module. I have 6 solenoids that activate sprinklers, and I am looking to have them fire every x days, changing every month. So far, I have come up with code that: fires a relay at a…
Bryce Tucker
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