Pylon-Monitor Lite
PylonCheck
Parallel cables
Pylon-Check.com
Pylon-Monitor's cloud-first sibling: your Pylontech battery from anywhere, three years of history, offline alerts and cell-balance advice, with no subscription.
Flagship #2 · Hardware & energy
Pylon-Monitor.com
A real physical product, from the circuit board to the parcel: a WiFi device that reveals everything a Pylontech solar battery knows, sold across Europe.
- from box to dashboard
- < 2 min
- batteries per device, mixed models
- 16
- subscription, cloud included
- €0
- languages, site and support
- 6
-- The challenge
Most Pylontech owners only see a percentage in their inverter app. Yet the battery knows much more: health, cycles, the voltage of every cell, temperatures, alarms. The job was a simple device, with no app and no command line, that makes all of it readable.
A community of 6,000+ Facebook followers, devices running all over Europe, and a public GitHub repository for the documentation.
-- features
What the device does
01
Plug & play
One RJ45 cable into the Console port, one USB cable, a WiFi portal that opens by itself: live in under two minutes.
02
Local dashboard
Opens from any phone or PC on the network, no account: charge, health, cells, temperatures, history.
03
Native Home Assistant
MQTT auto-discovery (sensors appear on their own) or a JSON API for Jeedom, Node-RED, openHAB, Domoticz.
04
Smart Balance
Every full charge is measured, the pack gets a balance score out of 100 and the weak cell is named, with the exact setting for 14 inverter brands.
05
Free, optional cloud
Three years of history, an e-mail alert if the device goes quiet, CSV export, private share link, fleet view for installers.
06
Over-the-air updates
New features arrive wirelessly, published and signed for each hardware generation.
-- pipeline
From soldering iron to parcel: all done in-house
Firmware
Written from scratch: WiFi portal, web dashboard, JSON API, MQTT, screen, OTA updates.
Electronics
Board designed, assembled, flashed and tested before every shipment.
Enclosure
Designed around the 1.8" IPS screen and refined over several revisions for fit and airflow.
Cloud
Time-series history (raw 7 days, 5-min 90 days, hourly 3 years), alerts, runtime forecasts.
Shop
Site in 6 languages, Stripe and PayPal, invoicing, automatic non-EU customs, one-click labels, eBay sales in 11 countries.
Support
Multilingual assistant, a help centre built from real customer questions, install guides and printed quick-start cards.
-- screenshots
Gallery
-- Technologies
- C++ firmware
- PCB design
- Enclosure design
- PHP 8
- MySQL
- MQTT
- REST / JSON
- Stripe
- PayPal
- eBay API
- AWS SES
-- related
In the same space
MoniWatt.com
The next product: real-time monitoring for solar inverters and batteries, with Home Assistant integration. In the works.
Offres-Travail.com
Independent job platform with one of the largest job counts in France: 165,000+ live listings, 1,500 new ones a day, automatic CV parsing, two-click applications, e-mail alerts and a recruiter area.
-- let's start something
A project, an idea, a collaboration?
Tell me what you need: I answer personally, usually within 24 hours.