Peck-o-Meter 3000: AI Bird Feeder for the Synaptics Coralboard SL

The Peck-o-Meter 3000 is a 3D-printed bird feeder with a small house-shaped back that houses a Synaptics Coralboard SL and a camera. The concept is that camera looks down at the perch, and the board's AI chip can tell when a bird drops by and which bird it is. All of it runs on the board itself, with no cloud. Then it sends you a photo on your phone. Hang it on any post with two zip ties or screws, plug in USB-C, and wait for the birds to show up. Highlights - Universal post mount: a V-groove bracket that sits on round or square posts (about Ø30–150 mm). Mountable with zip ties, or the two optional screw holes. The feeder hooks onto the bracket and lifts off for cleaning. One M3 lock screw stops it rattling when birds take off. - Board pod designed around the official Coralboard SL: - All four mounting holes on heat-set inserts. - Vent and drain slots in the bottom. - Camera eye on the pod lid, tilted 35° down at the perch. It fits the common 25 × 24 mm camera board (OV5647 / Raspberry Pi Camera v1.3 size). - Printed perch: the front edge of the tray is a rounded 12 mm rim that small garden birds grip well. It curves around the front corners and blends into the side walls. Print it at coarse layers for extra grip. - No supports needed for any part. Every part was checked in its print orientation for overhangs and for anything sticking out below the bed. Print settings and material - Material: PETG, ASA, or any other plastic for outside use. - Body, lid, bracket: 0.2 mm layers, 4 perimeters, 25–30% infill. - Tray: 0.28–0.32 mm layers (0.4 mm nozzle), so the perch rim has grippy layer lines. 4 perimeters, 30% infill. - No supports. Hardware - 9 x M3 heat-set inserts: 4 board, 4 lid, 1 bracket - 4 x M3 × 6 (board) - 4 x M3 × 8 (lid) - 1 x M3 × 10 (lock screw, body into bracket) - 3 x M3 × 20 + hex nuts (tray, lower row) - 2 x M3 × 12 + hex nuts (tray, upper row) - 4 x M2 × 6 + nuts (camera) - 2 x Wood screws Ø4 × 35–40 mm (optional, bracket to post) - 2 x Zip ties up to 9 mm wide - 1 x USB-C 90° angle cable , plus a rubber grommet for the cable hole - 1 x OV5647 camera module or usb camera (for usb camera, additional mounting to the house was not made make yourself, ah and don't ask me, my camera got pecked 🤣) - 1 x Synaptics Coralboard SL, with M.2 Wi-Fi module for notifications or compatible wifi usb Assembly 1. Press the heat-set inserts into the body (8) and the bracket (1). 2. Screw the board onto the standoffs, ports facing down. Fit the camera in the lid's eye and connect the ribbon. 3. Plug in the 90° angle USB-C cable, push it through the back, and seal the hole with the grommet. Close the lid. 4. Screw the tray to the body. The nuts sit in the traps on the back. 5. Zip-tie the bracket to the post. Hang the feeder on the hooks: hold it a bit higher, push it back, lower it. 6. Fit the lock screw from the front, under the hanger slots. How the Peck-o-Meter 3000 thinks (software concept) The Coralboard runs the AI on its own chip, so no photos leave the feeder unless you send them.

1. Detect: the YOLOv8 example from Synaptics already recognize "bird". 2. Identify: crop the bird and pass it to a species classifier, for example a model trained on bird photos. 3. Notify: send the species name and the photo to your phone through ntfy or a Discord. Status: the printed parts are designed and fitted around the official Coralboard SL model, and the body has been test printed with its inserts. The software above is the planned setup, not yet tested on a real board. Weather notes - Hang it somewhere sheltered, such as under a porch roof. The hood covers the pod, not the whole feeder. - Keep the board powered. It runs warm, which keeps condensation somewhat away. - Leave a drip loop in the cable below the grommet. - Beware of storm, birds issues non flight warning among themselves. - Beware after storm, birds can issue empty tray notifications by pecking nearby windows. (Seriously!)