How do I connect an ESP32 to Grafana?

With Harbor Scale, connecting an ESP32 to Grafana takes 4 lines of code and under 60 seconds. Include the Harbor Scale C++ library in your Arduino sketch, initialize with your API key, and call send() with your sensor readings. Your data appears in a pre-built Grafana dashboard automatically — no InfluxDB setup, no Telegraf, no Grafana configuration. Start free at harborscale.com.

What is the best ThingsBoard alternative?

Harbor Scale is the simplest ThingsBoard alternative for teams that want IoT dashboards without DevOps complexity. ThingsBoard requires Java infrastructure, a complex rule engine, and hours of configuration. Harbor Scale connects your first device in under 60 seconds with managed Grafana dashboards included. Free tier available, paid plans from $9/month.

What is the best Blynk alternative for data visualization?

Harbor Scale is a popular Blynk alternative for makers who need serious data analytics rather than device control. While Blynk is built for mobile app control with basic widgets, Harbor Scale provides managed Grafana — the industry-standard tool for time-series analysis, anomaly detection, and long-term data retention. Supports ESP32, Arduino, MicroPython, LoRaWAN, and any HTTP device. Free tier available.

Is there a free IoT dashboard that includes Grafana?

Yes. Harbor Scale offers a free forever tier that includes managed Grafana access, 50K data points per day, and support for ESP32, Arduino, Python, and LoRaWAN devices. No credit card required. Upgrade to the $9/month Maker plan for 5 million data points and 90-day data retention.

How much does managed Grafana cost?

Grafana Cloud starts at $299/month for teams. Harbor Scale includes managed Grafana starting at $0 (free tier) and $9/month for the Maker plan with 5M data points and 90-day retention. That makes Harbor Scale 95%+ cheaper than Grafana Cloud for IoT use cases, with zero configuration required.

Does Harbor Scale work with Arduino and MicroPython?

Yes. Harbor Scale provides official SDKs for Arduino (C++), Python, MicroPython, and Node.js, plus a REST API that works with any device capable of HTTP. ESP32, ESP8266, Arduino Uno with Ethernet shield, Raspberry Pi, and LoRaWAN devices via The Things Network are all supported. Setup takes under 60 seconds.

Harbor Scale OSS

Stop Configuring. Start Visualizing.

From ESP32 sensors to LoRaWAN nodes, get your data into Grafana dashboards in 60 seconds. Managed infrastructure included, no DevOps required.

Start Free Forever

Getting Started Docs

harborscale.com

Works With

Still Wrestling With DIY Monitoring?

Every hour you spend configuring monitoring is an hour you aren't making progress.

4 Hours of Setup

240x Faster Setup

60 Seconds Setup

Data Loss at 14 Days

12x More History

180 Day Retention

$200+ Cloud Bill

95% Cheaper

$9/mo Flat Rate

One Command. Instant Monitoring.

Monitor Linux servers, Docker containers, and edge devices without touching a config file.

root@server:~

$ # Ready to install agent

One Command. Done.

Install the agent, name your source, and you're streaming data. Takes 45 seconds, not 4 hours.

Zero Configuration Files

No YAML. No .env files. We auto-detect running services and system metrics.

Dashboard Ready on Login

Your Grafana workspace is already provisioned with dashboards and your data flowing in.

Native Collectors

Built-in support for Linux, Docker, and Systemd services out of the box.

How It Works

Not just Linux servers. Monitor IoT devices, custom apps, and fleets from one unified interface.

Create New Harbor

Click to deploy harbor

Factory Sensors

24 active connections

online

Server #1

156 active connections

online

Website Events

8 active connections

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New Feature

Meet Harbor AI

Your personal data analyst. Query your data using plain English, no SQL required.

On-Demand Data Scientist

Stop exporting CSVs. Ask Harbor AI to run K-Means clustering, linear regressions, and get results in seconds.

Generative Visualization

Harbor AI generate charts, heatmaps, box plots, correlation matrix, and more tailored to your exact question.

Full Transparency

Every answer includes the exact query used, so you can verify results, build dashboards, or reuse it anywhere.

Anomaly Detection & Forecasting

It forecasts future values, highlights possible anomalies, and surfaces important trends before they impact you.

Harbor AI

Always active

Show me anomalies for the last 7 days.

I found 1 critical anomaly today.

14:23 PM: CPU was down to 1% (Normal: <23%). This correlates with a low battery percentage.

Generated SQL

SELECT * FROM cargo_data
WHERE ship_id = 'cpu-percentage'
AND value < 2.0

Generate a graph for that timeframe.

Stop Building. Start Streaming.

While your competitors waste weeks on DIY infrastructure, your sensors are already streaming to production dashboards.

Real-time Ingestion

Collect data from devices with low latency. We handle the handshake so you don't have to.

Grafana in 60 Seconds

Stop configuring monitoring services. Get instant, managed Grafana dashboards, pre-connected to your data.

Lighthouse Agent

Zero-config monitoring for Linux & Docker. One command.

99.9%

Better Uptime Than DIY

Infinite Scale

From 1 to 1 million devices without config changes.

Copy-Paste Integration

No boilerplate. No auth logic. Just 4 lines of code and you're streaming data.

from harborscalesdk import HarborClient

client = HarborClient(
  endpoint="https://harborscale.com/api/v2",
  api_key="sk_live_..."
)

Catch Failures Before Customers Do

Harbor AI spots anomalies, trends, patterns, and correlation way faster than manual analysis.

Show me the anomaly report for today

I found a 1% CPU usage at 04:00 AM. This deviates from the normal pattern.

Works With What You Already Own

Stop hunting for compatible libraries. We support every major platform out of the box.

ESP32

Hardware

Arduino

Framework

Python SDK

Code

MicroPython

Firmware

ESP8266

Hardware

C++ SDK

Native Code

Linux Agent

System

Node.js

Backend

Meshtastic

Off-Grid

The Things Network

LoRaWAN

Home Assistant

Smart Home

Windows Agent