Plynx - Arduino ESP32 Control

New in 1.2.0: toggle pins from your Home Screen, read sensors on Apple Watch, dashboards available offline. Free, no ads, your data stays on your server.

Control your Arduino, ESP32 or ESP8266 from your iPhone. Build the dashboard for your project in minutes: drag widgets onto a canvas, bind each one to a pin, and watch sensor values stream in live while buttons and sliders drive your outputs.

HOW IT WORKS

1. Create a project in the app and add your widgets
2. Flash a small library on your board with the token the app gives you
3. Done. Your hardware and your phone are talking

Great for irrigation systems, aquarium and terrarium controllers, garage doors, weather stations, water tanks, battery monitors, or whatever you are soldering this weekend.

WIDGETS Buttons, sliders, gauges, charts, joystick, RGB picker, LCD, terminal, level indicators, value displays, tabs, timers and more. Over 20 widgets, each one configurable with themes that look good in light and dark.

BEYOND THE APP

• Home Screen widgets: toggle a pin without even opening the app
• Lock Screen widgets for your most important values
• Apple Watch app: sensors and switches on your wrist
• Offline mode: dashboards keep showing the last known values

YOUR DATA, YOUR SERVER Plynx talks directly to a small open source server you can host yourself on any Raspberry Pi. No cloud account with us, no telemetry, nothing in the middle. Not into self-hosting? A free public instance is available too.

FREE, WITH NOTHING TO UNLOCK No ads, no subscriptions, no device limits.

Compatibility note: Plynx speaks the classic Blynk Legacy protocol, so existing legacy servers and dashboards work out of the box.

Requires iOS 18+. Works with Arduino, ESP8266, ESP32 and Raspberry Pi.