Documentation

Everything you need to go from unboxing an ESP32 to a production IoT dashboard.

START HERE

Getting Started

Flash your board, connect to the server, and build your first dashboard in under 5 minutes.

REFERENCE

Widget Reference

Complete guide to all 20+ widgets: buttons, sliders, gauges, charts, maps, terminals, and more.

CODE

Firmware Library

Arduino/ESP/RPi library API, virtual pins, BLYNK_WRITE handlers, and advanced techniques.

ADVANCED

Protocol Spec

Binary protocol deep dive: command codes, message structure, response codes, and packet examples.

COMMUNITY

Community Forum

How support threads, showcases and AI-friendly long-form posts will live in the public docs ecosystem.

Widget directory

Every widget has its own reference page with size rules, resize behavior and firmware contract.

Control widgets

Button

Momentary or toggle actuator for a single virtual or hardware pin.

2 x 2

Styled Button

A richer button with distinct on/off labels and color states.

4 x 2

Slider

Horizontal continuous input with min, max and send strategy options.

8 x 1

Vertical Slider

Vertical range control for compact side panels and console-style layouts.

2 x 4

Step

Increment and decrement control with fixed step size and optional send-delta mode.

3 x 2

Joystick

Two-axis XY control for steering, pan/tilt and motion surfaces.

5 x 5

zeRGBa

RGB color picker modeled after the classic Blynk-style control surface.

8 x 5

Segmented Control

Compact index selector for modes, presets and scene families.

8 x 1

Dropdown or picker surface that sends the selected item index.

4 x 2

Scene

High-level trigger surface that fires a preconfigured scene instead of a single pin write.

4 x 2

Timer

Schedule widget for time-based ON/OFF automation with server-managed execution.

4 x 2

Text Input

Freeform string input for commands, labels, tokens or terminal-like control fields.

4 x 2

Number Input

Numeric input with min/max constraints and compact keypad-driven editing.

4 x 2

Display widgets

Value Display

Fast numeric readout for single values like temperature, current or uptime.

4 x 2

Labeled Value

String template display with inline placeholder replacement for the current pin value.

4 x 2

Gauge

Circular analog-style meter for sensor values and percentages.

4 x 4

LCD

Character display widget inspired by classic 16x2 LCD modules.

8 x 3

LED

Simple indicator surface where brightness or on/off state mirrors a pin.

2 x 2

Level Display

Bar-like fill meter for quantities that need directional visual context.

2 x 4

Image

Static or state-driven image frame for diagrams, icons or board photos.

4 x 4

Data and advanced widgets

SuperChart

Historical and live chart surface with multiple streams, periods and annotations.

8 x 5

Terminal

Bidirectional terminal for commands, logs and line-oriented interaction.

8 x 5

Map

Live position widget with device points, tracks and board-originated GPS updates.

8 x 5

Table

Dynamic multi-row table fed by firmware commands and row updates.

8 x 4

Eventor

Automation rules widget for conditions, actions, mail and notification flows.

8 x 3

Tabs

Navigation widget that splits a large dashboard into multiple pages inside one project.

8 x 1

Service widgets

Notification

Service widget that emits push notifications rather than rendering UI on the canvas.

2 x 2

Service widget for sending mail notifications and alert summaries.

2 x 2

RTC

Background time-sync widget that exposes server time to firmware logic.

2 x 2

Bridge

Background bridge for writing pins on another device or token context.

2 x 2

Webhook

Non-visual automation widget for relaying events to external HTTP endpoints.

2 x 2

Protocol: TCP/SSL binary • Header: 1B cmd + 2B msgId + 2B len • Field separator: 0x00 • Server: plynx.cc:9443