Blynk

Blynk Device Streaming Protocol

Bi-directional low-latency streaming connection protocol used by the Blynk Library and Blynk.Edgent to maintain a persistent link between devices and Blynk.Cloud. Optimized for constrained MCUs (Arduino, ESP32, ESP8266, Particle, Raspberry Pi), the protocol delivers virtual-pin reads and writes, widget property updates, and remote commands without the overhead of polling the HTTPS Device API. Surfaced to firmware developers as the Blynk Library C++ API.

GitHub

Documentation

📖
Documentation
https://docs.blynk.io/en/blynk-library-firmware-api

Other Resources

🔗
SourceCode
https://github.com/blynkkk/blynk-library

API entry from apis.yml

apis.yml Raw ↑ 
aid: blynk:blynk-device-streaming-protocol
name: Blynk Device Streaming Protocol
tags:
- IoT
- Streaming
- Real Time
- Bidirectional
- Firmware
- Embedded
humanURL: https://docs.blynk.io/en/getting-started/intro
properties:
- url: https://docs.blynk.io/en/blynk-library-firmware-api
  type: Documentation
  name: Blynk Library Firmware API
- url: https://github.com/blynkkk/blynk-library
  type: SourceCode
  name: blynk-library (C++)
description: Bi-directional low-latency streaming connection protocol used by the Blynk Library and Blynk.Edgent
  to maintain a persistent link between devices and Blynk.Cloud. Optimized for constrained MCUs (Arduino,
  ESP32, ESP8266, Particle, Raspberry Pi), the protocol delivers virtual-pin reads and writes, widget
  property updates, and remote commands without the overhead of polling the HTTPS Device API. Surfaced
  to firmware developers as the Blynk Library C++ API.