Pylon-Monitor.com
A WiFi device that reads Pylontech solar batteries live: charge, health, every cell, temperatures. Firmware, board, enclosure, cloud, shop and logistics — all designed and assembled in-house.
Connected hardware · Cloud
Pylon-Check.com
Pylon-Monitor’s sibling, built for people who want to watch their Pylontech battery from anywhere: a 72 mm box, a cloud dashboard and three years of history, with no subscription.
- cables included, no subscription
- €45
- of history kept
- 3 years
- before the “device silent” alert
- 6 h
- batteries per device
- 16
-- The challenge
Most owners only see their battery from home, in the inverter app. A power cut, a dropped WiFi or a drifting cell can go unnoticed for days. The job was a device that sends everything to a private space you can open from the office or on holiday, without opening a single port on the router.
A second brand built on Pylon-Monitor’s foundations: a new audience reached without duplicating the work.
-- features
What the site does
01
Online dashboard
Charge, power, voltage, current and status refreshed every two minutes, battery by battery.
02
3-year history
Raw for 7 days, 5-minute averages for 90 days, hourly for three years: zoom from today to last winter.
03
Offline alert
If the device goes quiet for six hours (power cut, WiFi, cable), an e-mail goes out — the one thing a battery cannot report itself.
04
Balance advice
The gap between the highest and lowest cell is compared with the pack’s own normal, with an explanation when it widens.
05
Export & share
CSV export per battery for a spreadsheet, a warranty claim or the installer, plus a private JSON link, off by default.
06
Local too
Home Assistant via MQTT discovery, JSON API, Jeedom: at home everything works even without internet.
-- pipeline
How it is built
Hardware
A 72 × 72 × 25 mm box with an outbound-only 2.4 GHz WiFi connection: nothing to set up on the router.
Reading
The Console port is polled gently every few seconds and decoded into readable values per battery.
Cloud
Automatically aggregated time series, alerts, advice and exports, on the same platform as Pylon-Monitor.
Shop
Site in 6 languages, Stripe and PayPal payments, invoicing and shipping from France.
-- screenshots
Screenshots
-- Technologies
- C++ firmware
- PHP 8
- MySQL
- Time series
- MQTT
- REST / JSON
- Stripe
- PayPal
- 6 languages
-- 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.