head to head · open source
espectre vs Expandable-6-Channel-ESP32-Energy-Meter
espectre has 9,388 GitHub stars, 708 forks, 13 open issues and last shipped 2 days ago. Expandable-6-Channel-ESP32-Energy-Meter has 690 stars, 133 forks, 18 open issues and last shipped 21 days ago. espectre leads on adoption by 1,261% (9,388 vs 690 stars). espectre is written in Python under GPL-3.0; Expandable-6-Channel-ESP32-Energy-Meter is written in C++ under MIT. espectre has attracted 8% as many forks as stars, Expandable-6-Channel-ESP32-Energy-Meter 19%. espectre was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (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
| espectre | Expandable-6-Channel-ESP32-Energy-Meter | |
|---|---|---|
| GitHub stars | ★ 9.4K | ★ 690 |
| License | GPL-3.0 | MIT |
| Written in | Python | C++ |
| Last push | 2026-09-23 | 2026-09-04 |
| Forks | ⑂ 708 | ⑂ 133 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick espectre if
- You weight community size — 9.4K stars and counting
- You want the GPL-3.0 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 espectre
ESPectre is an open source Wi Fi CSI motion sensing platform that turns a supported ESP32 board into a private, local motion sensor reporting movement in real time, and it is built for embedded developers, Home Assistant users, and DIY builders who want room level sensing without cameras, microphones, wearables, or dedicated radar hardware.
read the full espectre 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 espectre or Expandable-6-Channel-ESP32-Energy-Meter more popular?
espectre has 9,388 GitHub stars and Expandable-6-Channel-ESP32-Energy-Meter has 690. espectre has the larger community by that measure.
Are espectre and Expandable-6-Channel-ESP32-Energy-Meter free?
Both are open source. espectre is licensed under GPL-3.0 and Expandable-6-Channel-ESP32-Energy-Meter under MIT. Neither carries a licence fee.
What is the difference between espectre and Expandable-6-Channel-ESP32-Energy-Meter?
espectre 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, espectre or Expandable-6-Channel-ESP32-Energy-Meter?
Choose espectre if you want the larger community (9,388 stars) or its GPL-3.0 licence terms. Choose Expandable-6-Channel-ESP32-Energy-Meter if its feature set, stack or MIT licence fits better. Both are self-hostable.