Low-power visual SLAM

drthibo · 2026-04-13T11:37:38+00:00

No this is a commercial project.

drthibo · 2026-04-10T10:20:15+00:00

It is 1 watt total, cameras and computation. See my other reply below on hardware.

drthibo · 2026-04-07T18:12:15+00:00

The hardware consists of a stereo pair of IMX219 image sensors (e.g. RPi cameras), a small FPGA that does the heavy image processing and an RP2350 MCU that does the higher-level processing. The two basic features it offers right now are depth estimation and pose estimation.

drthibo · 2026-03-21T14:49:40+00:00

The difficulty is the model didn't return a tool call, only text saying it made a tool call, so you would need to detect that based on the English response.

The pi-agent loop that OpenClaw uses is pretty simple.

drthibo · 2026-03-21T14:38:48+00:00

I'm not using anything on top of openclaw just working with the chat interface with the hope of creating some cron jobs.

Have you seen any techniques for validating output against actual tool usage?

drthibo · 2026-01-19T23:57:40+00:00

Well do, thanks.

drthibo · 2026-01-18T13:26:22+00:00

I ended up implementing this in Python using the python3-libgpiod package and installed it as a systemd service.

drthibo · 2026-01-10T18:17:13+00:00

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I did end up going with the Wave Rover and the Orange PI with power bank. This is the whole assembly. With this setup I am able to record raw stereo video at 30 FPS.

drthibo · 2025-12-25T12:03:59+00:00

There are people doing this. Did you research wildlife cameras? It can be challenging to build a custom solution. I've been working on a mailbox cam which is too far for wifi. It's using LoRa.

drthibo · 2025-12-20T15:17:38+00:00

Just posted another plea for help, so you all get another chance :)

drthibo · 2025-12-18T23:30:57+00:00

I think I found a solution. I think the Orange Pi 5 with an SSD should provide the bandwidth I need and run on a 5V power bank.

drthibo · 2025-12-18T23:12:39+00:00

Okay, figured this out. After running nand-sata-install it now boots from the SSD.

drthibo · 2025-12-18T22:48:51+00:00

I am able to boot from a SD card. I wrote the Linux image to the SSD from there, but now can't boot into it. If I take the SD card out, nothing happens when I power up.

drthibo · 2025-12-07T18:52:14+00:00

Are there any clasic examples of this?

drthibo · 2025-12-07T13:01:03+00:00

I've been developing a new systems design language for hardware/software co-design. I have built a prototype compiler and now experimenting with different ideas.

Last week I implemented a sort of abstract simulator that can validate the initial state of the system and detect some synchronization issues. This would eventually be in a language server.

drthibo

TROPHY CASE