Available now
Herons at the pond
Detect a heron early and trigger your configured response while physical protection does its work.
For koi ponds with a heron problem
Spot herons before they reach your koi.
Free Raspberry Pi software that detects herons locally, records visits, and can play a configured deterrent sound. Build it with your own camera and Coral USB accelerator.
- Watches while you are away
- Reacts to a heron, not ordinary movement
Local detection active
Pond protection, thoughtfully applied
A better response to repeat visits.
Herons are patient, observant, and quick to learn a pond routine. tallGuard adds a local early-warning and response layer to the physical measures that keep fish safer.
How tallGuard helps
A practical three-part watch.
- 01
Recognise the threat
On-device AI looks for a heron at the pond edge without streaming continuous video to the cloud.
- 02
Keep a useful record
Capture a photo or recording of a confirmed event, so you can understand when the pond is most at risk.
- 03
Respond on your terms
Trigger your configured deterrent while fish cover, safe edges, and barriers do their essential work.
Built around a real pond
Designed for the moments you cannot stand and watch.
tallGuard began with a recurring heron at a koi pond. It is built to give pond keepers a calm, local view of what happened, not a false promise that one device replaces every physical protection.
Read the tallGuard storyCommunity Edition
Bring the hardware. Keep control at the pond.
Use your own Raspberry Pi 4, compatible camera, Coral Edge TPU, mounting, and deterrent. The software is free to install and runs locally where it matters.
Check the build list- Compute
- Raspberry Pi 4
- Detection
- Coral Edge TPU
- Camera
- Your pond view
Pond keeper's library
Find your next practical step.
Beyond the pond
One quiet watch for the garden too.
Heron protection remains tallGuard's first job. Optional cat and bird activity alerts help you understand what else visits the places you care for.
Alerts available
Cats near sensitive areas
Choose cat-detection emails for a pond edge or nesting-box area. A cat deterrent is coming soon.
Observe gently
Bird activity at a nesting box
Choose bird-detection emails without repeatedly checking the box. A detection is not a species ID or nest-health check.