TN666

TN666 / batear

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● batear — Under-$15 acoustic drone detector on ESP32-S3. Edge-only, no cloud, no radar. Protect your home with a microphone.

acoustic anti-war drone drone-detection esp32
14
1
100% credibility
Found Mar 22, 2026 at 14 stars -- GitGems finds repos before they trend. Get early access to the next one.
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AI Analysis
C
AI Summary

Batear is an open-source project for building a low-cost, battery-friendly device that detects nearby drones by listening to their unique rotor sounds using a microcontroller and microphone.

How It Works

1
📖 Discover Batear

You hear about Batear, a simple way to build a cheap gadget that listens for drone noises to keep your home safe.

2
🛒 Gather parts

Pick up a tiny computer board and a small microphone for just a few dollars from online shops.

3
🔌 Connect the microphone

Hook up the microphone to the board using a few wires, just like plugging in headphones.

4
⚡ Add the listening program

Load the special software onto the board so it starts paying attention to sounds around it.

5
🎚️ Tune for your spot

Place it near a window, listen to the updates, and tweak the sensitivity to ignore wind or birds but catch drones.

🛡️ Protect your space

Set it outside on a fence or roof, and feel secure as it alerts you the second a drone buzzes nearby.

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Star Growth

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AI-Generated Review

What is batear?

Batear is a sub-$15 acoustic drone detector built in C for the ESP32-S3 microcontroller paired with a cheap MEMS microphone. It listens for drone rotor sounds at home or on property edges, triggering local alerts without any cloud dependency or internet. Deploy it battery-powered at a window or fence to spot nearby threats like micro drones in real time.

Why is it gaining traction?

Its edge-only design skips pricey radar or subscriptions, using efficient filtering tuned to drone harmonics for low-power, always-on detection. Developers dig the no-cloud simplicity and easy calibration via serial output, letting you tweak thresholds for wind or noise on the fly. At this price, it's a practical hack for bat ears-level vigilance without bat earnings date-level costs.

Who should use this?

Makers securing rural homes or farms against cheap drones. ESP32 tinkerers testing acoustic sensors for perimeter alerts. Hobby drone pilots calibrating defenses, or beisbol fans wanting "batear" tech for outdoor events—pair it with buzzers for instant warnings.

Verdict

Early prototype with solid docs and flashable code, but only 14 stars and 1.0% credibility score mean it needs real-world tests for accuracy amid noise. Grab it if you have soldering skills and a drone to fly—great baseline for custom home detectors, just calibrate aggressively.

(178 words)

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