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Questions tagged [blynk]

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0
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1answer
30 views

ESP8266 too many argument to function

My project uses ESP8226 to allow: 1) user to set an alarm. 2) after 20 sec of the alarm ringing, it will notify to phone via blynk app using motion sensor. 3) after 40 sec it will turn off ...
0
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1answer
45 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 ...
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0answers
63 views

Is it possible to use an array to contain a list of strings that are to be passed as the parameters in a function?

I'm using the Blynk platform with my ESP-12E. Inside the Blynk Android app, I have a drop-down menu widget which can obtain the list of drop-down items from the microcontroller like this: Blynk....
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1answer
59 views

Changing outputs infinitely for no reason

Im a student and working on a arduino project for IoT competition and me and my team have built a house and I made this code below. For some reason when I upload it to my Arduino MKR1000 it constantly ...
0
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1answer
87 views

Notifications in constant loop (Blynk) trying to trigger along with serial function

This is an extension from a previous thread that was getting lengthy and off the original topic. I have the following code which monitors the state of a float switch (high or low). I upload the sketch,...
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3answers
320 views

How to use the HC-05 properly?

It all started when I was working on my Arduino project, which involves an Arduino Nano, an HC05 module and a bunch of sensors (DHT 11, soil moisture and LDR) with Blynk App. Everything worked as it ...
0
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1answer
253 views

Update button state in Blynk app through the code

I'm using Blynk along with a WeMos D1 R2 and i can change modes through an ON/OFF button. I can succesfully change mode and make my application go from mode 1 (irrigation) to mode 2 (Fertilization), ...
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1answer
56 views

Problem with action that should happen in loop(continuously)

I’m using WeMos D1 R2 and latest Blynk library and app. I am also using Arduino IDE 1.6.13. I am trying to read a button from the app, which works fine, but i want to read it continuously. Through the ...