head to head · open source
oomwoo vs Expandable-6-Channel-ESP32-Energy-Meter
oomwoo has 11,130 GitHub stars, 696 forks, 3 open issues and last shipped 4 days ago. Expandable-6-Channel-ESP32-Energy-Meter has 690 stars, 133 forks, 18 open issues and last shipped 21 days ago. oomwoo leads on adoption by 1,513% (11,130 vs 690 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%. oomwoo 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 | ★ 11K | ★ 690 |
| License | Apache-2.0 | MIT |
| Written in | Python | C++ |
| Last push | 2026-09-21 | 2026-09-04 |
| Forks | ⑂ 696 | ⑂ 133 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick oomwoo if
- You weight community size — 11K 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 is an open source robot vacuum cleaner that you build yourself from a Raspberry Pi CM4 or CM5, 3D printed parts, Arduino and ESP32 electronics, and ROS2 software, aimed at makers and Home Assistant users who want a local, cloud free cleaning robot they can hack, repair, and extend.
read the full oomwoo overview →
About Expandable-6-Channel-ESP32-Energy-Meter
The CircuitSetup Expandable 6 Channel ESP32 Energy Meter is a hardware and software documentation project for a real time power and energy monitor built around two ATM90E32AS metering ICs, intended for homeowners, electricians and home automation users working with ESPHome and Home Assistant.
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 11,130 GitHub stars and Expandable-6-Channel-ESP32-Energy-Meter has 690. 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 (11,130 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.