head to head · open source
oomwoo vs Expandable-6-Channel-ESP32-Energy-Meter
oomwoo has 13,009 GitHub stars, 817 forks, 3 open issues and last shipped 4 days ago. Expandable-6-Channel-ESP32-Energy-Meter has 700 stars, 136 forks, 18 open issues and last shipped 2 days ago. oomwoo leads on adoption by 1,758% (13,009 vs 700 stars). oomwoo is written in Python under Apache-2.0; Expandable-6-Channel-ESP32-Energy-Meter is written in C++ under MIT. oomwoo has attracted 6% as many forks as stars, Expandable-6-Channel-ESP32-Energy-Meter 19%. Expandable-6-Channel-ESP32-Energy-Meter was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 2 topic tags (esp32, home-assistant), so they are genuine substitutes rather than adjacent tools.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
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Side by side
| oomwoo | Expandable-6-Channel-ESP32-Energy-Meter | |
|---|---|---|
| GitHub stars | ★ 13K | ★ 700 |
| License | Apache-2.0 | MIT |
| Written in | Python | C++ |
| Last push | 2026-11-05 | 2026-11-07 |
| Forks | ⑂ 817 | ⑂ 136 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick oomwoo if
- You weight community size — 13K stars and counting
- You want the Apache-2.0 license terms
- Your stack matches Python
- You value the larger contributor base for long-term maintenance
pick Expandable-6-Channel-ESP32-Energy-Meter if
- You want the Expandable-6-Channel-ESP32-Energy-Meter feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches C++
- You evaluated both and Expandable-6-Channel-ESP32-Energy-Meter fits your workflow better
About oomwoo
OOMWOO Open source robot vacuum you build yourself Clean well · Hackable · Raspberry Pi · 3D printed · Local / No cloud required · Home Assistant · Arduino · ROS2 · ESP32 OOMWOO is an open source home robot vacuum you can build yourself, built using Raspberry Pi, 3D printing, Home Assistant, Arduino and ROS2. It uses an affordable 2D LiDAR to map your home and navigate on its own. Local, no cloud required for regular functionality, no vendor lock in. Follow us building in public Discord X Instagram Facebook Reddit newsletter YouTube oomwoo.com Tutorials Early build instructions will be available in Fall 2026…
read the full oomwoo overview →
About Expandable-6-Channel-ESP32-Energy-Meter
CircuitSetup Expandable 6 Channel ESP32 Energy Meter The CircuitSetup Expandable 6 Channel ESP32 Energy Meter is a real time power and energy monitor built around two ATM90E32AS metering ICs. The main board measures six current transformer channels and one voltage reference by default, and you can stack up to six add on boards for a total of 42 current channels. It is a good fit for whole home monitoring, subpanels, solar, large branch circuits, and multi voltage or 3 phase projects. The first AC AC adapter powers the main board and provides the primary voltage reference. A second voltage can be measured on the…
read the full Expandable-6-Channel-ESP32-Energy-Meter overview →
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Frequently asked questions
Is oomwoo or Expandable-6-Channel-ESP32-Energy-Meter more popular?
oomwoo has 13,009 GitHub stars and Expandable-6-Channel-ESP32-Energy-Meter has 700. oomwoo has the larger community by that measure.
Are oomwoo and Expandable-6-Channel-ESP32-Energy-Meter free?
Both are open source. oomwoo is licensed under Apache-2.0 and Expandable-6-Channel-ESP32-Energy-Meter under MIT. Neither carries a licence fee.
What is the difference between oomwoo and Expandable-6-Channel-ESP32-Energy-Meter?
oomwoo is written in Python and Expandable-6-Channel-ESP32-Energy-Meter in C++. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, oomwoo or Expandable-6-Channel-ESP32-Energy-Meter?
Choose oomwoo if you want the larger community (13,009 stars) or its Apache-2.0 licence terms. Choose Expandable-6-Channel-ESP32-Energy-Meter if its feature set, stack or MIT licence fits better. Both are self-hostable.