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

Transparent Pricing. Zero Surprises.

Start free forever. Upgrade when you need more data or longer retention. No hidden fees, no vendor lock-in.

Start Free Forever

Getting Started Docs

harborscale.com

Works With

Plans & Pricing

Simple, transparent pricing. No hidden fees.

Starter

Free Harbor

Perfect for hobbyists and side projects.

$0/mo

50K Data Points
100 Data Points / Batch
10 AI Questions / Day
1-Day Data Retention
Managed Grafana Access
Community Support

Start Free

Maker Harbor

For serious makers who need reliability.

$9/mo

vs Free: 12x retention, 2.5x batch size, 2x AI

5 Million Data Points
250 Data Points / Batch
20 AI Questions / Day
90-Day Data Retention
Managed Grafana Access
Email Support

Start Maker Harbor

Power User

Pro Harbor

For professionals who can't afford downtime.

$29/mo

vs Maker: 2x retention, 4x batch size, 2.5x AI

10 Million Data Points
1000 Data Points / Batch
50 AI Questions / Day
180-Day Data Retention
Managed Grafana Access
Priority Email Support

Start Pro Harbor

Stop Wasting Time on Setup

See how Harbor Scale compares to alternatives

	DIY (Grafana+InfluxDB)	Datadog / AWS IoT	Harbor Scale
Setup Time	4-6 hours	2-3 hours	< 60 seconds
Monthly Cost (5M points)	$300+ in dev time	$50-200	$9
Grafana Included	DIY setup	Extra $49/mo	Pre-configured
Config Files Needed	10+ YAML files	5-8 files	0 files
Maintenance Hours/Month	4-8 hours	1-2 hours	0 hours

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

System

BME280

Environment

Soil Sensor

Agriculture

Airport Weather

Data Feed

iPhone GPS

Tracking

Apple Health

Biometrics

Custom API

Universal

Frequently Asked Questions

Still have questions? Contact Support