Blynk - Arduino, ESP8266, RPi

I cannot connect the app to the twitter. When i click the connect button on the twotter widget, it displays connecting and starts loading then goes back again to the twitter widget.

While clicking on forgot password,i am receiving mail but while clicking on reset option in mail it's showing "invalid request parameters" and nothing showing there.

How can I create an account in this app? I had an account in blynk iot but that showing invalid username here... There is no sign in part in this app.. How could I create an account here?????

Blynk(legacy) is not login with Facebook and it's not working forgot passward also what's the reason

Please send me solution of login because first time I am login with my facebook account now i am atomatically logout now i am click on Facebook login they show the app in not set-up and in under development mode please solve my question

brilliant solution for personal IoT. i am able to do my college project thanks to this. i love its features. very simple to use yet a very powerful tool. also love the fact that there is no subscription bs for non-commercial use. you get some free points, but you want more, you dish out some money one time and have increased functionality. brilliant documentation, explanation and examples on their website and in the app. 10/5 highly recommended

App was great until they stopped supporting it without notice. Just got done buying more tokens to use the app and the next day app wont open anymore, message says its legacy app and to use the new version. New version doesn't recognize tokens I just purchased, plus I have to recode everything. Look for something else!!!

Sir, I have been using Blynk app for many IOT projects and it has been the most efficient and versatile app for me when it comes to home automation. But when I used the timer widget and normal on/off button simultaneously in a single project for a same gpio pin(ESP8266), it sometimes behaves in an awkward manner. It sometimes automatically switches off the pin even when the timer is not reached the off time(time set to turn off). Otherwise extraordinary app.

This app is phenomenal. It's easy to use, works flawlessly, and saves a ton of time when trying to implement IoT solutions. People complaining about the energy purchases have no appreciation for the level of work that goes into building something like this, or the costs associated with maintaining the servers. A user that has only one active application can likely implement without any costs at all. The libraries and tutorials provided are well coded and thought out as well.

This suppose to support Bluetooth classic and bluetooth low energy and before this update all the my project worked fine with blynk. After the update i cannot connect my project via bluetooth low energy. I'm using the bluetooth classic for now in the hope this will be rectified soon. Then today I was further disappointed by the fact that, although the email and no fiction widget is allowed to be used whilst using bluetooth communication, it does not work. Whenever an email should be triggered then a message at the bottom of the screen asks me to update the Blynk app inspite of the fact that I am using the latest update available on my note 4. I can't understand why the email and bluetooth is working on wifi (which I tested) but not when using bluetooth. Please can Blynk get back to me with a solution. Thanks.

Guys, your iOS App works a LOT better than android. We've now saw it buggy on lower end as well as High End phones. My guess is, disable the animation effect when switching between projects. It's lagging. The problem is when opening the app and when switching to another project.

The colours of the app are bad. Light green vs light gray while selecting the port. Documentation of the system is large but contains very little information. It took a lot of time to make the first project because of the (not so) funny documentation.

I love the idea of this app. I'm not super happy about having to "buy more energy" to use more than a few resources though, but its acceptable. What is NOT acceptable is having to spend that energy to use the home screen widgets AND never getting that energy back after removing the widgets!! Either remove the energy requirements for using the widgets or make sure the energy is refunded in full after removing a widget. Non-refundable energy for the "Sharing" feature is fine, but NOT for widgets.

Thank You Blynk for making things so easy. User friendly interphase with all the necessary tools at one place. A must have for home automation. I have tested it many times and every time it has worked. I recommend this app not only for electronic hobbyists but also for those who are looking for automation and security. Blynk is highly reliable and efficient. K. P. Singh

Great app. However I'm having an issue selecting the BLE widget. I'm using an android device, samsung note 4 (and testing it on a Samsung tab A 2017 edition). The BLE widget in app is grayed out and won't allow me to select it. I am able to connect to the BLE module using other apps so I'm quite certain it is not my device. Please advise what can be done to resolve this. Thanks

Fantastic app. I cannot fault it. I'm running this app on my Samsung Galaxy Note 10+; & it's very stable & user friendly. The Blynk API for Arduino is equally as phenomenal. I've got that on a Feather M0 Bluefruit LE, running FreeRTOS; & I can't fault it. In fact, Blynk has become my go-to for any of my projects that require Android interactivity over Bluetooth or IoT.

It says free, but everytime you think about doing something it asks you for more "energy". And the "energy" costs add up really fast! It gets expensive before you know it. But the interface is beautiful and really smooooth to use. Awesome job!

Board missing. The list of supported software clearly said that it was compatible with a BBC micro:bit, but when I tried making my code, the option was nowhere to be found. Until there is a workaround, I am never using this app again.

I'd wish to use Blynk paid version for many of my projects but can't. Still no support for Arduino Nano BLE series, Every, IoT, Sense. No way to use it with Blynk. I tried with my Arduino Nano 33 BLE Sense, no way to connect with Bluetooth, BLE or any other connection type. The boards are pretty famous and not super new but support still missing. Complete lack of support for nrf52 chip. There is official ArduinoBLE.h but Blynk did not implement it to communicate with their app, so can't use it.

Lots of fiddling around and decent size learning curve but once it working it's great. Just wish home screen buttons worked the way they should and had more.

The app was working superfine. I was using this app flawlessly since 2016 untill from last 2 months i am getting this error "Couldn't connect to server. check your internet connection and try again". I live in North India I've updated the application but still the issue has not fixed. Anyone else faced this issue?

Great, but THERES NO NORMAL COLOR PICKER!!! WHY DOES IT HAVE TO BE ZEBRA SHAPED? WHY ARE THERE NO NORMAL HSL COLOR PICKER OR SOMETHING??? I JUST WANT SOMETHING NORMAL PLEASE!!! :( . . . . . . . . Also why can't we reuse virtual pins on multiple widgets? It's literally only sending values to the MCU, not modifying the value/state of a gpio pin directly... . . . . . . . . . Also only 3 stars because these issues made the application kinda awkward/wierd to use...

I was able to signup somehow after several retries. But now it always tell couldn't connect to the server. Check your internet connection and try again. I have high speed internet connection. Really bad experience on my first project. I had bought other stuff already. Now it will be waste of my money.

I have not yet used it, but can it be possible to link blynk with my online system since I need it for my school project?

Blynk is an easy to use app with simplicity as the main strength. I have used it to create several IOT projects. Recently though the "Blynk notify" widget does not work with ESP32 controller. Anyone with same issue.