The Hornet Nest Alarm Panel is a powerful, open-source PoE-enabled security panel designed to bridge the gap between traditional wired alarm systems and modern smart home platforms like Home Assistant. Whether you're a home automation enthusiast or a professional installer, this panel offers exceptional flexibility, seamless integration with ESPHome, and full transparency through its open-source hardware and firmware. With up to 42 optoisolated zones, customizable outputs, and support for Wiegand keypads and smoke detectors, the Hornet Nest Alarm Panel brings professional-grade security features into the hands of makers and DIY home automation enthusiasts.
Key Features & Specifications
- 42 optoisolated zones for robust, customizable security coverage
- 6 MOSFET-controlled 12V outputs for powering sirens, strobe lights, or other external devices
- 6 3.3V trigger outputs for advanced automation scenarios
- 5 additional wESP32 I/Os for even more expansion options
- Individual zone and output indicators for easy monitoring and troubleshooting
- PoE-enabled power with support for external 12V DC and USB Type-C options (wESP32 module required)
- Support for Wiegand keypads to enhance physical security
- Pre-flashed with ESPHome firmware for out-of-the-box compatibility with Home Assistant
- Qwiic expansion connector for adding future sensors or modules
- MOSFET-controlled 12V reset for 4-wire smoke detectors for added safety
- Dimensions: 262 x 188 mm (10.31 x 7.40 inches)
- Fully open-source hardware and firmware (GPL & MIT licensed
Comparison with Similar Products
| Hornet Nest Alarm Panel | Konnected Alarm Panel Pro (12 Zone) | |
|---|---|---|
| Input Zones | 42 optoisolated zones | 12 digital input zones |
| Outputs | 6 MOSFET-controlled outputs (12V devices) | 3 dedicated outputs (2x 12V, 2x 3.3V trigger outputs) |
| Additional Outputs | 6x 3.3V trigger outputs, 5x wESP32 I/Os | None |
| Smoke Detector Reset | MOSFET-controlled 12V reset for 4-wire smoke detectors | No dedicated feature |
| Power Options | PoE-enabled, external 12 V DC, or USB Type-C wESP32 module | PoE-enabled or external power |
| Status Indicators | Individual zone & output indicators | 1 status LED |
| Open Source | Fully open source with GPL and MIT licensing | Partially open source |
| Firmware | Pre-flashed with ESPHome | Pre-flashed with Konnected firmware |
| Keypad Support | Wiegand keypad support | No keypad support |
| Expandable Zones | Qwiic expansion connector for additional functionality | Expandable with add-on boards |
| Power Input Features | Fused with flexible input options | No additional features |
| Sensing Trigger | 3-23 V DC | None |
| Price | $299 | ~$229 |
- Direct
ESPHome Integration: Pre-flashed with ESPHome, it connects
effortlessly to Home Assistant, minimizing setup complexity.
- Unmatched
Zone Capacity: With 42 optoisolated zones, it outclasses most
consumer alarm panels, ideal for complex setups.
- Triple
Power Options: Choose between PoE, 12V DC, or USB Type-C,
making it adaptable to any installation environment.
- Extensible
with Open Source Flexibility: Whether adding a water leak sensor or a
Wiegand keypad, the open design and Qwiic connector make expansions
a breeze.
- Transparent and Secure: Being fully open-source, both hardware and firmware are publicly available, giving users complete control over how their security system works.
The Hornet Nest Alarm Panel is available now for $299. You can purchase it directly from the Crowd Supply.
- Crowd Supply: Hornet Nest Alarm Panel
- Documentation & Source Code: GitHub Repository Link
- ESPHome Setup Guide: ESPHome Documentation Link
- Home Assistant Integration Guide: Home Assistant Docs Link
The Hornet Nest Alarm Panel brings professional-grade
security into the hands of DIY makers and home automation enthusiasts. Its
rich combination of 42 zones, open-source firmware, PoE support, and
seamless ESPHome integration makes it the ideal choice for:
- Homeowners
wanting flexible security in smart homes
- Hobbyists
combining legacy wired sensors with modern automation
- Professional
installers looking for transparent, customizable solutions
With full documentation, ongoing community support, and
robust features, the Hornet Nest Alarm Panel is a standout security
automation device. If you're looking to upgrade your smart home security,
this open-source powerhouse deserves your attention.
Have you integrated a wired alarm system into your smart
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