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Introduction
Getting Started
Quickstart
Developer Mode
Device Activation Methods
Template Quick Setup
Control Devices (GPIOs and more)
Log Events
Get Notifications
Firmware Over-The-Air (Blynk.Air)
Metadata Tutorial
Sign Up / Sign In
Platform overview
Blynk Products and Services
Products
Services
General Concepts
Device
Device Template
Users
Organizations
Multi-tenancy
Downloads
Blynk Mobile Apps
Blynk.Edgent
Blynk.Console
Overview
Search Data
Devices
Locations
Organizations
Users
Device Templates
Blynk.Air
Settings
User Profile
Blynk.Apps
Overview
Mobile Dashboard Editor
Pages
Widgets
Main Menu
Devices
Groups
Automations
Notifications
Blynk.Edgent
Overview
Supported Boards
Installation
Main Operations
Library API
BLYNK.CLOUD (HTTPS API)
Overview
Get Datastream Value
Get Multiple Datastream Values
Update Datastream Value
Batch Update of the Datastreams
Update Widget/Datastream Property
Trigger Log Event
Get Device History Data
Get Device MetaField Value
Is Device Connected
HTTPS API Troubleshooting
Security
Troubleshooting
General Issues
Developer Mode
WiFi Provisioning
Changes from Blynk 0.1
Glossary
Links
Commercial Use
Deploying Products With Dynamic AuthTokens
Deploying Products With Static Tokens
Supported topologies
White Label Solution
Legacy Platform Help Articles
Legacy articles
How to display ANY sensor data in Blynk app
What is Virtual Pins
Keep your void loop() clean
How to control anything with Blynk app
Install ESP8266 core for Arduino IDE
NodeMCU
ESP8266 standalone
Particle Electron
ESP8266 with AT firmware
Bluetooth (2.0 SPP, 4.0 LE)
USB Serial
Raspberry Pi and Blynk
BBC micro:bit + Arduino IDE
Blynk and Raspberry Pi: Tips & Tricks
How to install Node.js library on Linux
Node.js vs. C++ library
Implementing a Blynk client (library)
Export Project made with Blynk into a standalone app
Updating the apps made with Blynk
App and board logs. How to send application and board logs correctly
Blynk Android permissions explained
How to find code for my hardware?
How to install Blynk Library for Arduino IDE
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Blynk and Raspberry Pi: Tips & Tricks

Autostart

To enable Blynk autostart for Pi, find /etc/rc.local file and add there:
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node full_path_to_your_script.js <YourAuthToken> &
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Run forever

Use forever utility to auto-restart your script.
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npm install -g forever
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Run external scripts/utilities from Blynk

You can run external python, batch, or just anything executable from Node.js using child_process module:
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var exec = require('child_process').exec;
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exec('command', function callback(error, stdout, stderr){
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// result
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});
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PiBakery

​PiBakery allows you to pre-configure Raspberry Pi, while creating SD Card.
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