head to head · open source
espectre vs Expandable-6-Channel-ESP32-Energy-Meter
espectre has 9,778 GitHub stars, 743 forks, 13 open issues and last shipped 2 days ago. Expandable-6-Channel-ESP32-Energy-Meter has 700 stars, 136 forks, 18 open issues and last shipped 2 days ago. espectre leads on adoption by 1,297% (9,778 vs 700 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%. 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 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 | ★ 9.8K | ★ 700 |
| License | GPL-3.0 | MIT |
| Written in | Python | C++ |
| Last push | 2026-11-07 | 2026-11-07 |
| Forks | ⑂ 743 | ⑂ 136 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick espectre if
- You weight community size — 9.8K 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 Turn an ESP32 into a private, local Wi Fi motion sensor. When someone moves through a room, they change the way Wi Fi signals travel through it. ESPectre reads those changes and reports motion in real time. No camera, no microphone, no wearable, and no dedicated radar hardware: just a supported ESP32 and the Wi Fi network already in the room. ESPectre is an open source platform that brings together ready to flash firmware, an embeddable C++ SDK, a MicroPython implementation, browser tools, a host CLI, an open dataset, open model weights, and the research workflow used to build and validate the…
read the full espectre 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 espectre or Expandable-6-Channel-ESP32-Energy-Meter more popular?
espectre has 9,778 GitHub stars and Expandable-6-Channel-ESP32-Energy-Meter has 700. 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 (9,778 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.