Blynk (legacy)

Control Arduino, ESP8266, ESP32, NodeMCU, Particle Photon, Raspberry Pi, and other microcomputers with the smartphone over the Internet. Bluetooth and BLE supported too.
Create beautiful interfaces with widgets like buttons, knobs, graphs, displays and many more!
Start in 5 minutes:
https://www.blynk.io
If you have any questions, ask on our forum:
https://community.blynk.cc
You can even share your project with friends and other makers by simply sending them the link.
Use our Blynk Cloud or deploy your own Blynk Server in a minute and have full privacy and control in your hands.
Supported boards and shields:
• ESP8266
• ESP32
• NodeMCU
• Arduino Uno
• Arduino Mega
• Arduino Nano
• Arduino Mini
• Arduino YÚN (Bridge)
• Arduino Due
• Arduino 101
• Raspberry Pi
• Particle Core (ex Spark Core)
• Particle Photon
• SparkFun Blynk Board
• TinyDuino (CC3000)
• Wicked WildFire (CC3000)
Shields and connections:
• USB, connected to your laptop or desktop computer (no shield required!)
• Ethernet shield (W5100)
• Adafruit CC3000 WiFi
• Official Arduino WiFi shield
• ENC28J60
• HC-05, HC-06, HC-08, HM-10, etc.
And much much more...